git checkout 45c4ea0c4c1b8abffb575b865243fd1c69bbecd9 Previous HEAD position was a0cf1ab... Add linux-next specific files for 20130927 HEAD is now at 45c4ea0... Merge remote-tracking branch 'lzo-update/lzo-update' ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:45c4ea0c4c1b8abffb575b865243fd1c69bbecd9:bisect-usb 2013-10-05-21:56:53 45c4ea0c4c1b8abffb575b865243fd1c69bbecd9 compiling 178 real 868 user 94 sys 539.24% cpu i386-randconfig-j1-10052106 2013-10-05-22:00:09 detecting boot state 3.12.0-rc2-02842-g45c4ea0.... TEST FAILURE [ 3.053438] Write protecting the kernel read-only data: 2628k [ 3.054010] NX-protecting the kernel data: 6156k [ 3.088451] BUG: unable to handle kernel paging request at 05ba008c [ 3.089132] IP: [<81053de4>] task_work_run+0x54/0xa0 [ 3.089639] *pdpt = 00000000072e1001 *pde = 0000000000000000 [ 3.090236] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 3.090677] CPU: 0 PID: 85 Comm: hostname Not tainted 3.12.0-rc2-02842-g45c4ea0 #485 [ 3.091434] task: 8730c000 ti: 8730e000 task.ti: 8730e000 [ 3.092031] EIP: 0060:[<81053de4>] EFLAGS: 00010202 CPU: 0 [ 3.092433] EIP is at task_work_run+0x54/0xa0 [ 3.092433] EAX: 05ba008c EBX: 872f1a00 ECX: 00000000 EDX: 05ba008c [ 3.092433] ESI: 8730c388 EDI: 8730c000 EBP: 8730ff40 ESP: 8730ff34 [ 3.092433] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 3.092433] CR0: 8005003b CR2: 05ba008c CR3: 072d7000 CR4: 000006b0 [ 3.092433] Stack: [ 3.092433] ffffffff 87308058 8730c000 8730ff8c 81039365 7761ffb8 8105acbb 00000000 [ 3.092433] 8730ffac 00000001 6c0e3c25 61636f6c 736f686c 6f6c2e74 646c6163 8730c398 [ 3.092433] 815fac7e 81022fa0 00000000 00000000 872f0880 8730c000 8730ffa4 81039a5a [ 3.092433] Call Trace: [ 3.092433] [<81039365>] do_exit+0x2a5/0x910 [ 3.092433] [<8105acbb>] ? up_write+0x1b/0x30 [ 3.092433] [<815fac7e>] ? restore_all+0xf/0xf [ 3.092433] [<81022fa0>] ? kvm_read_and_reset_pf_reason+0x40/0x40 [ 3.092433] [<81039a5a>] do_group_exit+0x4a/0xa0 [ 3.092433] [<81039ac8>] SyS_exit_group+0x18/0x20 [ 3.092433] [<815fb2d0>] sysenter_do_call+0x12/0x3c [ 3.092433] Code: 36 31 c9 89 d0 0f b1 0e 39 c2 75 eb 85 d2 74 5c 8d b4 26 00 00 00 00 f3 90 8b 87 c0 03 00 00 85 c0 74 f4 31 db eb 04 89 d3 89 c2 <8b> 02 89 1a 85 c0 75 f4 eb 16 66 90 f6 47 0c 04 74 c4 b9 f0 4f [ 3.092433] EIP: [<81053de4>] task_work_run+0x54/0xa0 SS:ESP 0068:8730ff34 [ 3.092433] CR2: 0000000005ba008c [ 3.104992] ---[ end trace 67c9ae7514a9a318 ]--- /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-quantal-cairo-14:20131005220020:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-quantal-inn-24:20131005220017:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-quantal-lkp-st01-12:20131005220035:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-quantal-snb-11:20131005220032:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-quantal-xian-24:20131005220027:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-quantal-xian-30:20131005220027:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-athens-34:20131005220021:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-athens-36:20131005220015:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-athens-38:20131005220018:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-athens-3:20131005220015:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-athens-43:20131005220020:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-cairo-18:20131005220020:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-cairo-7:20131005220019:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-inn-28:20131005220014:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-inn-4:20131005220022:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-inn-7:20131005220019:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-lkp-st01-10:20131005220021:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-lkp-tt02-9:20131005122940:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-nhm4-5:20131005140325:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 /kernel/i386-randconfig-j1-10052106/45c4ea0c4c1b8abffb575b865243fd1c69bbecd9/dmesg-yocto-waimea-6:20131006055902:i386-randconfig-j1-10052106:3.12.0-rc2-02842-g45c4ea0:485 bisect: bad commit 45c4ea0c4c1b8abffb575b865243fd1c69bbecd9 git checkout v3.11 Previous HEAD position was 45c4ea0... Merge remote-tracking branch 'lzo-update/lzo-update' HEAD is now at 6e46645... Linux 3.11 ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:6e4664525b1db28f8c4e1130957f70a94c19213e:bisect-usb 2013-10-05-22:02:14 6e4664525b1db28f8c4e1130957f70a94c19213e compiling 155 real 829 user 86 sys 587.86% cpu i386-randconfig-j1-10052106 2013-10-05-22:05:04 detecting boot state 3.11.0.......................... 20 SUCCESS bisect: good commit v3.11 git bisect start 45c4ea0c4c1b8abffb575b865243fd1c69bbecd9 v3.11 -- Previous HEAD position was 6e46645... Linux 3.11 HEAD is now at c1be5a5... Linux 3.9 Bisecting: 6648 revisions left to test after this (roughly 13 steps) [39eda2aba6be642b71f2e0ad623dcb09fd9d79cf] Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc git bisect run /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:39eda2aba6be642b71f2e0ad623dcb09fd9d79cf:bisect-usb 2013-10-05-22:18:53 39eda2aba6be642b71f2e0ad623dcb09fd9d79cf compiling 142 real 845 user 92 sys 659.27% cpu i386-randconfig-j1-10052106 2013-10-05-22:21:29 detecting boot state 3.11.0-06739-g39eda2a........................................ 20 SUCCESS Bisecting: 3323 revisions left to test after this (roughly 12 steps) [bff157b3ad4b9f6be0af6987fcd62deaf0f2b799] Merge branch 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:bff157b3ad4b9f6be0af6987fcd62deaf0f2b799:bisect-usb 2013-10-05-22:42:03 bff157b3ad4b9f6be0af6987fcd62deaf0f2b799 compiling 145 real 859 user 91 sys 651.25% cpu i386-randconfig-j1-10052106 2013-10-05-22:44:41 detecting boot state 3.11.0-10064-gbff157b 8. 17 19 20 SUCCESS Bisecting: 1595 revisions left to test after this (roughly 11 steps) [f659a4f17bbecdbad57dd5c63a1783e5ec5fd792] Merge remote-tracking branch 'drm-intel/for-linux-next' running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:f659a4f17bbecdbad57dd5c63a1783e5ec5fd792:bisect-usb 2013-10-05-22:47:15 f659a4f17bbecdbad57dd5c63a1783e5ec5fd792 compiling 147 real 863 user 96 sys 653.09% cpu i386-randconfig-j1-10052106 2013-10-05-22:49:54 detecting boot state 3.12.0-rc2-01246-gf659a4f 9. 16 20 SUCCESS Bisecting: 798 revisions left to test after this (roughly 10 steps) [6405cd58ac5c0a6ed5f4f1308892147870b9d5cf] Merge remote-tracking branch 'regmap/for-next' running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:6405cd58ac5c0a6ed5f4f1308892147870b9d5cf:bisect-usb 2013-10-05-22:51:57 6405cd58ac5c0a6ed5f4f1308892147870b9d5cf compiling 136 real 866 user 94 sys 702.76% cpu i386-randconfig-j1-10052106 2013-10-05-22:54:26 detecting boot state 3.12.0-rc2-02043-g6405cd5. TEST FAILURE [ 3.071860] Write protecting the kernel read-only data: 2620k [ 3.072416] NX-protecting the kernel data: 6164k [ 3.107533] BUG: unable to handle kernel paging request at 010e0060 [ 3.108178] IP: [<81053de4>] task_work_run+0x54/0xa0 [ 3.108689] *pdpt = 00000000072de001 *pde = 0000000000000000 [ 3.109274] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 3.109705] CPU: 0 PID: 85 Comm: hostname Not tainted 3.12.0-rc2-02043-g6405cd5 #490 [ 3.110436] task: 872fe000 ti: 87300000 task.ti: 87300000 [ 3.110950] EIP: 0060:[<81053de4>] EFLAGS: 00010206 CPU: 0 [ 3.111481] EIP is at task_work_run+0x54/0xa0 [ 3.111895] EAX: 010e0060 EBX: 87316100 ECX: 00000000 EDX: 010e0060 [ 3.112492] ESI: 872fe388 EDI: 872fe000 EBP: 87301f40 ESP: 87301f34 [ 3.113082] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 3.113598] CR0: 8005003b CR2: 010e0060 CR3: 072dd000 CR4: 000006b0 [ 3.114197] Stack: [ 3.114281] ffffffff 87309058 872fe000 87301f8c 81039365 775defb8 8105acbb 00000000 [ 3.114281] 87301fac 00000001 6c0e3c25 61636f6c 736f686c 6f6c2e74 646c6163 872fe398 [ 3.114281] 815f8b2e 81022fa0 00000000 00000000 872ee880 872fe000 87301fa4 81039a5a [ 3.114281] Call Trace: [ 3.114281] [<81039365>] do_exit+0x2a5/0x910 [ 3.114281] [<8105acbb>] ? up_write+0x1b/0x30 [ 3.114281] [<815f8b2e>] ? restore_all+0xf/0xf [ 3.114281] [<81022fa0>] ? kvm_read_and_reset_pf_reason+0x40/0x40 [ 3.114281] [<81039a5a>] do_group_exit+0x4a/0xa0 [ 3.114281] [<81039ac8>] SyS_exit_group+0x18/0x20 [ 3.114281] [<815f9170>] sysenter_do_call+0x12/0x3c [ 3.114281] Code: 36 31 c9 89 d0 0f b1 0e 39 c2 75 eb 85 d2 74 5c 8d b4 26 00 00 00 00 f3 90 8b 87 c0 03 00 00 85 c0 74 f4 31 db eb 04 89 d3 89 c2 <8b> 02 89 1a 85 c0 75 f4 eb 16 66 90 f6 47 0c 04 74 c4 b9 f0 0f [ 3.114281] EIP: [<81053de4>] task_work_run+0x54/0xa0 SS:ESP 0068:87301f34 [ 3.114281] CR2: 00000000010e0060 [ 3.123912] ---[ end trace e8352cd646ea55bb ]--- /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-cairo-11:20131005225433:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-cairo-17:20131005225435:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-cairo-18:20131005225433:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-cairo-4:20131005225432:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-inn-29:20131005225436:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-inn-3:20131005225432:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-roam-17:20131005225433:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-snb-6:20131005225438:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-xian-36:20131005225434:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-yocto-athens-31:20131005225434:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-yocto-cairo-2:20131005225434:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-yocto-xian-13:20131005225434:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-snb-48:20131005225439:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-xps-2:20131006065251:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-yocto-bay-4:20131005225439:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-yocto-jaketown-13:20131005225437:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-yocto-lkp-tt02-24:20131005132357:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-lkp-tt02-12:20131005132408:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 /kernel/i386-randconfig-j1-10052106/6405cd58ac5c0a6ed5f4f1308892147870b9d5cf/dmesg-quantal-stoakley-1:20131005225444:i386-randconfig-j1-10052106:3.12.0-rc2-02043-g6405cd5:490 Bisecting: 357 revisions left to test after this (roughly 9 steps) [5094001bc464c12d3e04eb73a5e0d5e8436f09f7] Merge remote-tracking branch 'omap_dss2/for-next' running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:5094001bc464c12d3e04eb73a5e0d5e8436f09f7:bisect-usb 2013-10-05-22:55:00 5094001bc464c12d3e04eb73a5e0d5e8436f09f7 compiling 132 real 860 user 96 sys 723.20% cpu i386-randconfig-j1-10052106 2013-10-05-22:57:24 detecting boot state 3.12.0-rc2-01685-g5094001 8 9 18 20 SUCCESS Bisecting: 155 revisions left to test after this (roughly 8 steps) [8f31410ee9917e8648c7cf7f45e22320c166998a] Merge remote-tracking branch 'spi/for-next' running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:8f31410ee9917e8648c7cf7f45e22320c166998a:bisect-usb 2013-10-05-22:59:25 8f31410ee9917e8648c7cf7f45e22320c166998a compiling 25 real 170 user 21 sys 747.68% cpu i386-randconfig-j1-10052106 2013-10-05-23:00:01 detecting boot state 3.12.0-rc2-01887-g8f31410 8 9 20 SUCCESS Bisecting: 85 revisions left to test after this (roughly 6 steps) [6f014a7ea91f80f765ba700dcd1728680ba5c58e] Merge remote-tracking branch 'tip/auto-latest' running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:6f014a7ea91f80f765ba700dcd1728680ba5c58e:bisect-usb 2013-10-05-23:01:32 6f014a7ea91f80f765ba700dcd1728680ba5c58e compiling 140 real 862 user 93 sys 682.73% cpu i386-randconfig-j1-10052106 2013-10-05-23:04:06 detecting boot state 3.12.0-rc2-01957-g6f014a7. TEST FAILURE [ 3.069667] Write protecting the kernel read-only data: 2620k [ 3.070211] NX-protecting the kernel data: 6164k [ 3.102949] BUG: unable to handle kernel paging request at 04fa008c [ 3.103571] IP: [<81053d24>] task_work_run+0x54/0xa0 [ 3.104049] *pdpt = 00000000072de001 *pde = 0000000000000000 [ 3.104601] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 3.105018] CPU: 0 PID: 85 Comm: hostname Not tainted 3.12.0-rc2-01957-g6f014a7 #493 [ 3.105715] task: 872fe000 ti: 87300000 task.ti: 87300000 [ 3.106233] EIP: 0060:[<81053d24>] EFLAGS: 00010202 CPU: 0 [ 3.106728] EIP is at task_work_run+0x54/0xa0 [ 3.107176] EAX: 04fa008c EBX: 872f1880 ECX: 00000000 EDX: 04fa008c [ 3.107440] ESI: 872fe388 EDI: 872fe000 EBP: 87301f40 ESP: 87301f34 [ 3.107440] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 3.107440] CR0: 8005003b CR2: 04fa008c CR3: 072dd000 CR4: 000006b0 [ 3.107440] Stack: [ 3.107440] ffffffff 87309058 872fe000 87301f8c 81039365 77631fb8 8105abfb 00000000 [ 3.107440] 87301fac 00000001 6c0e3b65 61636f6c 736f686c 6f6c2e74 646c6163 872fe398 [ 3.107440] 815f8a4e 81022fa0 00000000 00000000 872ee880 872fe000 87301fa4 81039a5a [ 3.107440] Call Trace: [ 3.107440] [<81039365>] do_exit+0x2a5/0x910 [ 3.107440] [<8105abfb>] ? up_write+0x1b/0x30 [ 3.107440] [<815f8a4e>] ? restore_all+0xf/0xf [ 3.107440] [<81022fa0>] ? kvm_read_and_reset_pf_reason+0x40/0x40 [ 3.107440] [<81039a5a>] do_group_exit+0x4a/0xa0 [ 3.107440] [<81039ac8>] SyS_exit_group+0x18/0x20 [ 3.107440] [<815f9090>] sysenter_do_call+0x12/0x3c [ 3.107440] Code: 36 31 c9 89 d0 0f b1 0e 39 c2 75 eb 85 d2 74 5c 8d b4 26 00 00 00 00 f3 90 8b 87 c0 03 00 00 85 c0 74 f4 31 db eb 04 89 d3 89 c2 <8b> 02 89 1a 85 c0 75 f4 eb 16 66 90 f6 47 0c 04 74 c4 b9 f0 0f [ 3.107440] EIP: [<81053d24>] task_work_run+0x54/0xa0 SS:ESP 0068:87301f34 [ 3.107440] CR2: 0000000004fa008c [ 3.118531] ---[ end trace 06003c3eedc15c70 ]--- /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-quantal-athens-36:20131005230414:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-quantal-cairo-41:20131005230414:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-quantal-cairo-5:20131005230414:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-quantal-inn-26:20131005230415:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-quantal-roam-13:20131005230414:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-quantal-roam-31:20131005230414:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-yocto-bay-2:20131005230417:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-yocto-cairo-40:20131005230416:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-yocto-inn-27:20131005230415:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-yocto-inn-7:20131005230413:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-yocto-lkp-st01-12:20131005230417:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-yocto-nhm4-2:20131005150722:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-yocto-roam-10:20131005230416:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-yocto-snb-6:20131005230413:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-quantal-snb-1:20131005230420:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-yocto-lkp-tt02-4:20131005133337:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-yocto-xps-2:20131006070232:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-yocto-xps-6:20131006070232:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 /kernel/i386-randconfig-j1-10052106/6f014a7ea91f80f765ba700dcd1728680ba5c58e/dmesg-quantal-bens-4:20131005230426:i386-randconfig-j1-10052106:3.12.0-rc2-01957-g6f014a7:493 Bisecting: 24 revisions left to test after this (roughly 5 steps) [bce56fbc0f165658f7e0715fedc8d39840bae31c] Merge branch 'sched/core' running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:bce56fbc0f165658f7e0715fedc8d39840bae31c:bisect-usb 2013-10-05-23:04:39 bce56fbc0f165658f7e0715fedc8d39840bae31c compiling 146 real 857 user 90 sys 649.37% cpu i386-randconfig-j1-10052106 2013-10-05-23:07:15 detecting boot state 3.12.0-rc2-00095-gbce56fb. TEST FAILURE [ 3.040790] Write protecting the kernel read-only data: 2616k [ 3.041352] NX-protecting the kernel data: 6168k [ 3.072818] BUG: unable to handle kernel paging request at 01c80060 [ 3.073456] IP: [<81054094>] task_work_run+0x54/0xa0 [ 3.073946] *pdpt = 00000000072f6001 *pde = 0000000000000000 [ 3.074510] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 3.075035] CPU: 0 PID: 85 Comm: hostname Not tainted 3.12.0-rc2-00095-gbce56fb #494 [ 3.075357] task: 8730c000 ti: 8730e000 task.ti: 8730e000 [ 3.075357] EIP: 0060:[<81054094>] EFLAGS: 00010206 CPU: 0 [ 3.075357] EIP is at task_work_run+0x54/0xa0 [ 3.075357] EAX: 01c80060 EBX: 87300280 ECX: 00000000 EDX: 01c80060 [ 3.075357] ESI: 8730c388 EDI: 8730c000 EBP: 8730ff40 ESP: 8730ff34 [ 3.075357] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 3.075357] CR0: 8005003b CR2: 01c80060 CR3: 072ec000 CR4: 000006b0 [ 3.075357] Stack: [ 3.075357] ffffffff 872dc458 8730c000 8730ff8c 810396d5 77687fb8 8105af6b 00000000 [ 3.075357] 8730ffac 00000001 6c0e43d5 61636f6c 736f686c 6f6c2e74 646c6163 8730c398 [ 3.075357] 815f79ae 81022f80 00000000 00000000 872ef880 8730c000 8730ffa4 81039dca [ 3.075357] Call Trace: [ 3.075357] [<810396d5>] do_exit+0x2a5/0x910 [ 3.075357] [<8105af6b>] ? up_write+0x1b/0x30 [ 3.075357] [<815f79ae>] ? restore_all+0xf/0xf [ 3.075357] [<81022f80>] ? kvm_read_and_reset_pf_reason+0x40/0x40 [ 3.075357] [<81039dca>] do_group_exit+0x4a/0xa0 [ 3.075357] [<81039e38>] SyS_exit_group+0x18/0x20 [ 3.075357] [<815f7ff0>] sysenter_do_call+0x12/0x3c [ 3.075357] Code: 36 31 c9 89 d0 0f b1 0e 39 c2 75 eb 85 d2 74 5c 8d b4 26 00 00 00 00 f3 90 8b 87 c0 03 00 00 85 c0 74 f4 31 db eb 04 89 d3 89 c2 <8b> 02 89 1a 85 c0 75 f4 eb 16 66 90 f6 47 0c 04 74 c4 b9 f0 df [ 3.075357] EIP: [<81054094>] task_work_run+0x54/0xa0 SS:ESP 0068:8730ff34 [ 3.075357] CR2: 0000000001c80060 [ 3.088806] ---[ end trace 94950974e2a8d91c ]--- /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-roam-16:20131005230724:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-yocto-athens-16:20131005230725:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-yocto-athens-25:20131005230722:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-yocto-xian-15:20131005230724:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-inn-27:20131005230726:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-roam-28:20131005230726:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-yocto-cairo-9:20131005230725:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-athens-46:20131005230734:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-inn-31:20131005230734:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-roam-17:20131005230729:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-yocto-athens-30:20131005230731:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-yocto-cairo-48:20131005230733:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-jaketown-25:20131005230733:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-jaketown-40:20131005230737:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-lkp-tt02-17:20131005133658:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-snb-31:20131005230737:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-snb-41:20131005230735:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 /kernel/i386-randconfig-j1-10052106/bce56fbc0f165658f7e0715fedc8d39840bae31c/dmesg-quantal-lkp-st01-1:20131005230742:i386-randconfig-j1-10052106:3.12.0-rc2-00095-gbce56fb:494 Bisecting: 22 revisions left to test after this (roughly 5 steps) [c2daa3bed53a81171cf8c1a36db798e82b91afe8] sched, x86: Provide a per-cpu preempt_count implementation running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:c2daa3bed53a81171cf8c1a36db798e82b91afe8:bisect-usb 2013-10-05-23:07:48 c2daa3bed53a81171cf8c1a36db798e82b91afe8 compiling 142 real 851 user 89 sys 660.17% cpu i386-randconfig-j1-10052106 2013-10-05-23:10:21 detecting boot state 3.12.0-rc1-00060-gc2daa3b. TEST FAILURE [ 3.082499] Write protecting the kernel read-only data: 2620k [ 3.083037] NX-protecting the kernel data: 6172k [ 3.117483] BUG: unable to handle kernel paging request at 052a0080 [ 3.118116] IP: [<810540d4>] task_work_run+0x54/0xa0 [ 3.118596] *pdpt = 00000000072df001 *pde = 0000000000000000 [ 3.119157] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 3.119573] CPU: 0 PID: 85 Comm: hostname Not tainted 3.12.0-rc1-00060-gc2daa3b #495 [ 3.120283] task: 8730c000 ti: 8730e000 task.ti: 8730e000 [ 3.120779] EIP: 0060:[<810540d4>] EFLAGS: 00010202 CPU: 0 [ 3.121283] EIP is at task_work_run+0x54/0xa0 [ 3.121685] EAX: 052a0080 EBX: 87317880 ECX: 00000000 EDX: 052a0080 [ 3.122264] ESI: 8730c388 EDI: 8730c000 EBP: 8730ff40 ESP: 8730ff34 [ 3.122839] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 3.123333] CR0: 8005003b CR2: 052a0080 CR3: 072d6000 CR4: 000006b0 [ 3.123916] Stack: [ 3.124108] ffffffff 87307058 8730c000 8730ff8c 81039715 7761cfb8 8105afab 00000000 [ 3.124929] 8730ffac 00000001 6c0e42d5 61636f6c 736f686c 6f6c2e74 646c6163 8730c398 [ 3.125740] 815f768e 81022fc0 00000000 00000000 872ef880 8730c000 8730ffa4 81039e0a [ 3.125979] Call Trace: [ 3.125979] [<81039715>] do_exit+0x2a5/0x910 [ 3.125979] [<8105afab>] ? up_write+0x1b/0x30 [ 3.125979] [<815f768e>] ? restore_all+0xf/0xf [ 3.125979] [<81022fc0>] ? kvm_read_and_reset_pf_reason+0x40/0x40 [ 3.125979] [<81039e0a>] do_group_exit+0x4a/0xa0 [ 3.125979] [<81039e78>] SyS_exit_group+0x18/0x20 [ 3.125979] [<815f7cd0>] sysenter_do_call+0x12/0x3c [ 3.125979] Code: 36 31 c9 89 d0 0f b1 0e 39 c2 75 eb 85 d2 74 5c 8d b4 26 00 00 00 00 f3 90 8b 87 c0 03 00 00 85 c0 74 f4 31 db eb 04 89 d3 89 c2 <8b> 02 89 1a 85 c0 75 f4 eb 16 66 90 f6 47 0c 04 74 c4 b9 f0 cf [ 3.125979] EIP: [<810540d4>] task_work_run+0x54/0xa0 SS:ESP 0068:8730ff34 [ 3.125979] CR2: 00000000052a0080 [ 3.133198] ---[ end trace b270b681386bc452 ]--- /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-athens-23:20131005231030:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-cairo-11:20131005231028:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-cairo-16:20131005231033:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-cairo-3:20131005231029:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-roam-24:20131005231029:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-roam-31:20131005231032:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-xian-17:20131005231032:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-xian-32:20131005231029:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-yocto-athens-20:20131005231032:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-yocto-inn-35:20131005231033:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-yocto-inn-37:20131005231032:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-yocto-roam-18:20131005231032:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-yocto-snb-15:20131005231030:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-snb-48:20131005231034:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-snb-4:20131005231037:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-yocto-lkp-tt02-16:20131005133955:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-jaketown-48:20131005231044:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 /kernel/i386-randconfig-j1-10052106/c2daa3bed53a81171cf8c1a36db798e82b91afe8/dmesg-quantal-lkp-tt02-3:20131005134006:i386-randconfig-j1-10052106:3.12.0-rc1-00060-gc2daa3b:495 Bisecting: 10 revisions left to test after this (roughly 4 steps) [4314895165623879937f46d767673654662b570c] sched: Micro-optimize by dropping unnecessary task_rq() calls running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:4314895165623879937f46d767673654662b570c:bisect-usb 2013-10-05-23:10:53 4314895165623879937f46d767673654662b570c compiling 167 real 842 user 83 sys 552.85% cpu i386-randconfig-j1-10052106 2013-10-05-23:13:53 detecting boot state 3.12.0-rc1-00049-g4314895 4 10 11 20 SUCCESS Bisecting: 5 revisions left to test after this (roughly 3 steps) [4a2b4b222743bb07fedf985b884550f2ca067ea9] sched: Introduce preempt_count accessor functions running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:4a2b4b222743bb07fedf985b884550f2ca067ea9:bisect-usb 2013-10-05-23:15:54 4a2b4b222743bb07fedf985b884550f2ca067ea9 compiling 135 real 849 user 86 sys 691.45% cpu i386-randconfig-j1-10052106 2013-10-05-23:18:19 detecting boot state 3.12.0-rc1-00054-g4a2b4b2. TEST FAILURE [ 8.810766] Write protecting the kernel read-only data: 2620k [ 8.811692] NX-protecting the kernel data: 6164k [ 8.952966] BUG: unable to handle kernel paging request at 05520060 [ 8.954084] IP: [<81054534>] task_work_run+0x54/0xa0 [ 8.954950] *pdpt = 00000000072f6001 *pde = 0000000000000000 [ 8.955926] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 8.956651] CPU: 0 PID: 85 Comm: hostname Not tainted 3.12.0-rc1-00054-g4a2b4b2 #497 [ 8.957896] task: 8730c000 ti: 8730e000 task.ti: 8730e000 [ 8.958894] EIP: 0060:[<81054534>] EFLAGS: 00010206 CPU: 0 [ 8.959940] EIP is at task_work_run+0x54/0xa0 [ 8.960898] EAX: 05520060 EBX: 872dd980 ECX: 00000000 EDX: 05520060 [ 8.962298] ESI: 8730c388 EDI: 8730c000 EBP: 8730ff40 ESP: 8730ff34 [ 8.962671] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 8.962671] CR0: 8005003b CR2: 05520060 CR3: 072ec000 CR4: 000006b0 [ 8.962671] Stack: [ 8.962671] ffffffff 872dc458 8730c000 8730ff8c 81039996 77685fb8 8105b47b 00000000 [ 8.962671] 8730ffac 00000001 6c0e4b8d 61636f6c 736f686c 6f6c2e74 646c6163 8730c398 [ 8.962671] 815f918e 810230f0 00000000 00000000 872ef880 8730c000 8730ffa4 8103a08a [ 8.962671] Call Trace: [ 8.962671] [<81039996>] do_exit+0x2b6/0x920 [ 8.962671] [<8105b47b>] ? up_write+0x1b/0x30 [ 8.962671] [<815f918e>] ? restore_all+0xf/0xf [ 8.962671] [<810230f0>] ? kvm_read_and_reset_pf_reason+0x40/0x40 [ 8.962671] [<8103a08a>] do_group_exit+0x4a/0xa0 [ 8.962671] [<8103a0f8>] SyS_exit_group+0x18/0x20 [ 8.962671] [<815f97d0>] sysenter_do_call+0x12/0x3c [ 8.962671] Code: 36 31 c9 89 d0 0f b1 0e 39 c2 75 eb 85 d2 74 5c 8d b4 26 00 00 00 00 f3 90 8b 87 c0 03 00 00 85 c0 74 f4 31 db eb 04 89 d3 89 c2 <8b> 02 89 1a 85 c0 75 f4 eb 16 66 90 f6 47 0c 04 74 c4 b9 f0 ef [ 8.962671] EIP: [<81054534>] task_work_run+0x54/0xa0 SS:ESP 0068:8730ff34 [ 8.962671] CR2: 0000000005520060 [ 8.982521] ---[ end trace a67536c58ad46769 ]--- /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-yocto-nhm4-1:20131005152141:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-yocto-lkp-tt02-19:20131005134754:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-quantal-bens-2:20131005231837:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-quantal-stoakley-1:20131005231844:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-yocto-jaketown-10:20131005231837:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-yocto-jaketown-28:20131005231842:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-yocto-jaketown-47:20131005231836:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-yocto-waimea-12:20131006071728:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-quantal-lkp-st01-7:20131005231848:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-yocto-lkp-st01-12:20131005231845:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-yocto-stoakley-6:20131005231847:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-quantal-bens-4:20131005231848:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-quantal-lkp-tt02-3:20131005134806:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-yocto-lkp-tt02-16:20131005134807:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 /kernel/i386-randconfig-j1-10052106/4a2b4b222743bb07fedf985b884550f2ca067ea9/dmesg-yocto-lkp-tt02-4:20131005134807:i386-randconfig-j1-10052106:3.12.0-rc1-00054-g4a2b4b2:497 Bisecting: 2 revisions left to test after this (roughly 1 step) [b021fe3e25094fbec22d0eff846d2adeee1b9736] sched, rcu: Make RCU use resched_cpu() running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:b021fe3e25094fbec22d0eff846d2adeee1b9736:bisect-usb 2013-10-05-23:18:52 b021fe3e25094fbec22d0eff846d2adeee1b9736 compiling 142 real 849 user 83 sys 655.97% cpu i386-randconfig-j1-10052106 2013-10-05-23:21:24 detecting boot state 3.12.0-rc1-00051-gb021fe3. TEST FAILURE [ 8.333587] Write protecting the kernel read-only data: 2616k [ 8.334490] NX-protecting the kernel data: 6160k [ 8.498053] BUG: unable to handle kernel paging request at 04b40060 [ 8.499133] IP: [<810545e4>] task_work_run+0x54/0xa0 [ 8.500006] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 8.500957] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 8.501672] CPU: 0 PID: 85 Comm: hostname Not tainted 3.12.0-rc1-00051-gb021fe3 #498 [ 8.502880] task: 8730c000 ti: 8730e000 task.ti: 8730e000 [ 8.503767] EIP: 0060:[<810545e4>] EFLAGS: 00010206 CPU: 0 [ 8.504601] EIP is at task_work_run+0x54/0xa0 [ 8.505277] EAX: 04b40060 EBX: 872fe880 ECX: 00000000 EDX: 04b40060 [ 8.505358] ESI: 8730c388 EDI: 8730c000 EBP: 8730ff40 ESP: 8730ff34 [ 8.505358] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 8.505358] CR0: 8005003b CR2: 04b40060 CR3: 07301000 CR4: 000006b0 [ 8.505358] Stack: [ 8.505358] ffffffff 872dd458 8730c000 8730ff8c 810399a6 77677fb8 8105b59b 00000000 [ 8.505358] 8730ffac 00000001 6c0e4d9d 61636f6c 736f686c 6f6c2e74 646c6163 8730c398 [ 8.505358] 815f9a6e 810230f0 00000000 00000000 872ef880 8730c000 8730ffa4 8103a09a [ 8.505358] Call Trace: [ 8.505358] [<810399a6>] do_exit+0x2b6/0x920 [ 8.505358] [<8105b59b>] ? up_write+0x1b/0x30 [ 8.505358] [<815f9a6e>] ? restore_all+0xf/0xf [ 8.505358] [<810230f0>] ? kvm_read_and_reset_pf_reason+0x40/0x40 [ 8.505358] [<8103a09a>] do_group_exit+0x4a/0xa0 [ 8.505358] [<8103a108>] SyS_exit_group+0x18/0x20 [ 8.505358] [<815fa0b0>] sysenter_do_call+0x12/0x3c [ 8.505358] Code: 36 31 c9 89 d0 0f b1 0e 39 c2 75 eb 85 d2 74 5c 8d b4 26 00 00 00 00 f3 90 8b 87 c0 03 00 00 85 c0 74 f4 31 db eb 04 89 d3 89 c2 <8b> 02 89 1a 85 c0 75 f4 eb 16 66 90 f6 47 0c 04 74 c4 b9 f0 ef [ 8.505358] EIP: [<810545e4>] task_work_run+0x54/0xa0 SS:ESP 0068:8730ff34 [ 8.505358] CR2: 0000000004b40060 [ 8.524992] ---[ end trace 3a5f6abf5a1709a5 ]--- /kernel/i386-randconfig-j1-10052106/b021fe3e25094fbec22d0eff846d2adeee1b9736/dmesg-yocto-lkp-tt02-19:20131005135055:i386-randconfig-j1-10052106:3.12.0-rc1-00051-gb021fe3:498 /kernel/i386-randconfig-j1-10052106/b021fe3e25094fbec22d0eff846d2adeee1b9736/dmesg-quantal-lkp-st01-7:20131005232148:i386-randconfig-j1-10052106:3.12.0-rc1-00051-gb021fe3:498 /kernel/i386-randconfig-j1-10052106/b021fe3e25094fbec22d0eff846d2adeee1b9736/dmesg-quantal-waimea-2:20131006072031:i386-randconfig-j1-10052106:3.12.0-rc1-00051-gb021fe3:498 /kernel/i386-randconfig-j1-10052106/b021fe3e25094fbec22d0eff846d2adeee1b9736/dmesg-yocto-lkp-st01-10:20131005232151:i386-randconfig-j1-10052106:3.12.0-rc1-00051-gb021fe3:498 /kernel/i386-randconfig-j1-10052106/b021fe3e25094fbec22d0eff846d2adeee1b9736/dmesg-yocto-lkp-st01-8:20131005232143:i386-randconfig-j1-10052106:3.12.0-rc1-00051-gb021fe3:498 /kernel/i386-randconfig-j1-10052106/b021fe3e25094fbec22d0eff846d2adeee1b9736/dmesg-yocto-lkp-tt02-19:20131005135112:i386-randconfig-j1-10052106:3.12.0-rc1-00051-gb021fe3:498 Bisecting: 0 revisions left to test after this (roughly 0 steps) [0c44c2d0f459cd7e275242b72f500137c4fa834d] x86: Use asm goto to implement better modify_and_test() functions running /c/kernel-tests/bisect-test-boot-failure.sh /home/wfg/usb/obj-bisect ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:0c44c2d0f459cd7e275242b72f500137c4fa834d:bisect-usb 2013-10-05-23:21:56 0c44c2d0f459cd7e275242b72f500137c4fa834d compiling 13 real 28 user 11 sys 286.20% cpu i386-randconfig-j1-10052106 2013-10-05-23:22:19 detecting boot state 3.12.0-rc1-00050-g0c44c2d. TEST FAILURE [ 2.812808] Write protecting the kernel read-only data: 2620k [ 2.813576] NX-protecting the kernel data: 6164k [ 2.845270] BUG: unable to handle kernel paging request at 00840060 [ 2.846163] IP: [<810545e4>] task_work_run+0x54/0xa0 [ 2.846811] *pdpt = 00000000072e0001 *pde = 0000000000000000 [ 2.847631] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 2.848184] CPU: 0 PID: 85 Comm: hostname Not tainted 3.12.0-rc1-00050-g0c44c2d #499 [ 2.849186] task: 8730c000 ti: 8730e000 task.ti: 8730e000 [ 2.849365] EIP: 0060:[<810545e4>] EFLAGS: 00010206 CPU: 0 [ 2.849365] EIP is at task_work_run+0x54/0xa0 [ 2.849365] EAX: 00840060 EBX: 87305000 ECX: 00000000 EDX: 00840060 [ 2.849365] ESI: 8730c388 EDI: 8730c000 EBP: 8730ff40 ESP: 8730ff34 [ 2.849365] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 2.849365] CR0: 8005003b CR2: 00840060 CR3: 072df000 CR4: 000006b0 [ 2.849365] Stack: [ 2.849365] ffffffff 87307058 8730c000 8730ff8c 810399a6 776a4fb8 8105b59b 00000000 [ 2.849365] 8730ffac 00000001 6c0e4ccd 61636f6c 736f686c 6f6c2e74 646c6163 8730c398 [ 2.849365] 815f999e 810230f0 00000000 00000000 872f0880 8730c000 8730ffa4 8103a09a [ 2.849365] Call Trace: [ 2.849365] [<810399a6>] do_exit+0x2b6/0x920 [ 2.849365] [<8105b59b>] ? up_write+0x1b/0x30 [ 2.849365] [<815f999e>] ? restore_all+0xf/0xf [ 2.849365] [<810230f0>] ? kvm_read_and_reset_pf_reason+0x40/0x40 [ 2.849365] [<8103a09a>] do_group_exit+0x4a/0xa0 [ 2.849365] [<8103a108>] SyS_exit_group+0x18/0x20 [ 2.849365] [<815f9ff0>] sysenter_do_call+0x12/0x3c [ 2.849365] Code: 36 31 c9 89 d0 0f b1 0e 39 c2 75 eb 85 d2 74 5c 8d b4 26 00 00 00 00 f3 90 8b 87 c0 03 00 00 85 c0 74 f4 31 db eb 04 89 d3 89 c2 <8b> 02 89 1a 85 c0 75 f4 eb 16 66 90 f6 47 0c 04 74 c4 b9 f0 ef [ 2.849365] EIP: [<810545e4>] task_work_run+0x54/0xa0 SS:ESP 0068:8730ff34 [ 2.849365] CR2: 0000000000840060 [ 2.867153] ---[ end trace 7d329e78566f676e ]--- /kernel/i386-randconfig-j1-10052106/0c44c2d0f459cd7e275242b72f500137c4fa834d/dmesg-quantal-waimea-10:20131006072117:i386-randconfig-j1-10052106:3.12.0-rc1-00050-g0c44c2d:499 /kernel/i386-randconfig-j1-10052106/0c44c2d0f459cd7e275242b72f500137c4fa834d/dmesg-yocto-lkp-tt02-14:20131005135151:i386-randconfig-j1-10052106:3.12.0-rc1-00050-g0c44c2d:499 /kernel/i386-randconfig-j1-10052106/0c44c2d0f459cd7e275242b72f500137c4fa834d/dmesg-yocto-lkp-tt02-21:20131005135156:i386-randconfig-j1-10052106:3.12.0-rc1-00050-g0c44c2d:499 0c44c2d0f459cd7e275242b72f500137c4fa834d is the first bad commit commit 0c44c2d0f459cd7e275242b72f500137c4fa834d Author: Peter Zijlstra Date: Wed Sep 11 15:19:24 2013 +0200 x86: Use asm goto to implement better modify_and_test() functions Linus suggested using asm goto to get rid of the typical SETcc + TEST instruction pair -- which also clobbers an extra register -- for our typical modify_and_test() functions. Because asm goto doesn't allow output fields it has to include an unconditinal memory clobber when it changes a memory variable to force a reload. Luckily all atomic ops already imply a compiler barrier to go along with their memory barrier semantics. Suggested-by: Linus Torvalds Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/n/tip-0mtn9siwbeo1d33bap1422se@git.kernel.org Signed-off-by: Ingo Molnar :040000 040000 512c7965864218ef5a40569f80dd617fc75b60f9 22c5286cc1aa1e336c8b0d7efba08f3f3eff0640 M arch bisect run success ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:4314895165623879937f46d767673654662b570c:bisect-usb 2013-10-05-23:22:51 4314895165623879937f46d767673654662b570c reuse /kernel/i386-randconfig-j1-10052106/4314895165623879937f46d767673654662b570c/vmlinuz-3.12.0-rc1-00049-g4314895 2013-10-05-23:22:51 detecting boot state 24 41 43 56 60 SUCCESS ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:a0cf1abc25ac197dd97b857c0f6341066a8cb1cf:bisect-usb TEST FAILURE [ 3.067227] Write protecting the kernel read-only data: 2644k [ 3.067764] NX-protecting the kernel data: 6152k [ 3.102776] BUG: unable to handle kernel paging request at 044e0060 [ 3.103420] IP: [<81053fc4>] task_work_run+0x54/0xa0 [ 3.103892] *pdpt = 00000000072e1001 *pde = 0000000000000000 [ 3.104494] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 3.104908] CPU: 0 PID: 85 Comm: hostname Not tainted 3.12.0-rc2-next-20130927-03100-ga0cf1ab #5 [ 3.105357] task: 8730c000 ti: 8730e000 task.ti: 8730e000 [ 3.105357] EIP: 0060:[<81053fc4>] EFLAGS: 00010206 CPU: 0 [ 3.105357] EIP is at task_work_run+0x54/0xa0 [ 3.105357] EAX: 044e0060 EBX: 87302780 ECX: 00000000 EDX: 044e0060 [ 3.105357] ESI: 8730c388 EDI: 8730c000 EBP: 8730ff40 ESP: 8730ff34 [ 3.105357] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 3.105357] CR0: 8005003b CR2: 044e0060 CR3: 072dc000 CR4: 000006b0 [ 3.105357] Stack: [ 3.105357] ffffffff 87309058 8730c000 8730ff8c 81039315 77605fb8 8105af7b 00000000 [ 3.105357] 8730ffac 00000001 6c0e41a5 61636f6c 736f686c 6f6c2e74 646c6163 8730c398 [ 3.105357] 815fc8fe 81022f40 00000000 00000000 872f1880 8730c000 8730ffa4 81039a0a [ 3.105357] Call Trace: [ 3.105357] [<81039315>] do_exit+0x2a5/0x910 [ 3.105357] [<8105af7b>] ? up_write+0x1b/0x30 [ 3.105357] [<815fc8fe>] ? restore_all+0xf/0xf [ 3.105357] [<81022f40>] ? kvm_read_and_reset_pf_reason+0x40/0x40 [ 3.105357] [<81039a0a>] do_group_exit+0x4a/0xa0 [ 3.105357] [<81039a78>] SyS_exit_group+0x18/0x20 [ 3.105357] [<815fcf50>] sysenter_do_call+0x12/0x3c [ 3.105357] Code: 36 31 c9 89 d0 0f b1 0e 39 c2 75 eb 85 d2 74 5c 8d b4 26 00 00 00 00 f3 90 8b 87 c0 03 00 00 85 c0 74 f4 31 db eb 04 89 d3 89 c2 <8b> 02 89 1a 85 c0 75 f4 eb 16 66 90 f6 47 0c 04 74 c4 b9 f0 af [ 3.105357] EIP: [<81053fc4>] task_work_run+0x54/0xa0 SS:ESP 0068:8730ff34 [ 3.105357] CR2: 00000000044e0060 [ 3.118524] ---[ end trace 71b0ef2eb703c1ab ]--- /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-athens-34:20131005215404:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-athens-6:20131005211943:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-cairo-1:20131005215431:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-cairo-41:20131005215406:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-cairo-46:20131005215410:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-inn-15:20131005215415:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-inn-29:20131005215412:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-inn-3:20131005215411:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-inn-8:20131005211937:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-inn-9:20131005215431:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-lkp-st01-12:20131005211948:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 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/kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-yocto-stoakley-4:20131005215417:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-yocto-waimea-3:20131006051823:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-yocto-xian-10:20131005215432:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-yocto-xian-28:20131005215429:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-yocto-xian-43:20131005215412:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-yocto-xian-44:20131005215411:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-yocto-xian-44:20131005215433:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-yocto-xian-8:20131005215408:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 [detached HEAD fc168fe] Revert "x86: Use asm goto to implement better modify_and_test() functions" 5 files changed, 92 insertions(+), 58 deletions(-) delete mode 100644 arch/x86/include/asm/rmwcc.h ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:fc168fe72e9f5656e8ead41e3bc621f58d7d0120:bisect-usb 2013-10-05-23:25:27 fc168fe72e9f5656e8ead41e3bc621f58d7d0120 compiling i386-randconfig-j1-10052106: make prepare failed 2013-10-05-23:25:36 fc168fe72e9f5656e8ead41e3bc621f58d7d0120 SKIP BROKEN BUILD Check erros in /cc/wfg/usb-bisect and /tmp/kernel/i386-randconfig-j1-10052106/fc168fe72e9f5656e8ead41e3bc621f58d7d0120 ========= upstream ========= Fetching linus ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:7dee8dff47734ee52da2cd8b8ea9736e42c5062f:bisect-usb 2013-10-05-23:25:38 7dee8dff47734ee52da2cd8b8ea9736e42c5062f compiling 2013-10-05-23:28:09 detecting boot state 3.12.0-rc3-00313-g7dee8df 1. 6 19 40. 58. 60 SUCCESS ========= linux-next ========= Fetching next ls -a /kernel-tests/run-queue/kvm/i386-randconfig-j1-10052106/next:master:a0cf1abc25ac197dd97b857c0f6341066a8cb1cf:bisect-usb TEST FAILURE [ 3.067227] Write protecting the kernel read-only data: 2644k [ 3.067764] NX-protecting the kernel data: 6152k [ 3.102776] BUG: unable to handle kernel paging request at 044e0060 [ 3.103420] IP: [<81053fc4>] task_work_run+0x54/0xa0 [ 3.103892] *pdpt = 00000000072e1001 *pde = 0000000000000000 [ 3.104494] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 3.104908] CPU: 0 PID: 85 Comm: hostname Not tainted 3.12.0-rc2-next-20130927-03100-ga0cf1ab #5 [ 3.105357] task: 8730c000 ti: 8730e000 task.ti: 8730e000 [ 3.105357] EIP: 0060:[<81053fc4>] EFLAGS: 00010206 CPU: 0 [ 3.105357] EIP is at task_work_run+0x54/0xa0 [ 3.105357] EAX: 044e0060 EBX: 87302780 ECX: 00000000 EDX: 044e0060 [ 3.105357] ESI: 8730c388 EDI: 8730c000 EBP: 8730ff40 ESP: 8730ff34 [ 3.105357] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 3.105357] CR0: 8005003b CR2: 044e0060 CR3: 072dc000 CR4: 000006b0 [ 3.105357] Stack: [ 3.105357] ffffffff 87309058 8730c000 8730ff8c 81039315 77605fb8 8105af7b 00000000 [ 3.105357] 8730ffac 00000001 6c0e41a5 61636f6c 736f686c 6f6c2e74 646c6163 8730c398 [ 3.105357] 815fc8fe 81022f40 00000000 00000000 872f1880 8730c000 8730ffa4 81039a0a [ 3.105357] Call Trace: [ 3.105357] [<81039315>] do_exit+0x2a5/0x910 [ 3.105357] [<8105af7b>] ? up_write+0x1b/0x30 [ 3.105357] [<815fc8fe>] ? restore_all+0xf/0xf [ 3.105357] [<81022f40>] ? kvm_read_and_reset_pf_reason+0x40/0x40 [ 3.105357] [<81039a0a>] do_group_exit+0x4a/0xa0 [ 3.105357] [<81039a78>] SyS_exit_group+0x18/0x20 [ 3.105357] [<815fcf50>] sysenter_do_call+0x12/0x3c [ 3.105357] Code: 36 31 c9 89 d0 0f b1 0e 39 c2 75 eb 85 d2 74 5c 8d b4 26 00 00 00 00 f3 90 8b 87 c0 03 00 00 85 c0 74 f4 31 db eb 04 89 d3 89 c2 <8b> 02 89 1a 85 c0 75 f4 eb 16 66 90 f6 47 0c 04 74 c4 b9 f0 af [ 3.105357] EIP: [<81053fc4>] task_work_run+0x54/0xa0 SS:ESP 0068:8730ff34 [ 3.105357] CR2: 00000000044e0060 [ 3.118524] ---[ end trace 71b0ef2eb703c1ab ]--- /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-athens-34:20131005215404:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-athens-6:20131005211943:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-cairo-1:20131005215431:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-cairo-41:20131005215406:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-cairo-46:20131005215410:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-inn-15:20131005215415:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-inn-29:20131005215412:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-inn-3:20131005215411:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-inn-8:20131005211937:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-inn-9:20131005215431:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-lkp-st01-12:20131005211948:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 /kernel/i386-randconfig-j1-10052106/a0cf1abc25ac197dd97b857c0f6341066a8cb1cf/dmesg-quantal-lkp-tt02-8:20131005114908:i386-randconfig-j1-10052106:3.12.0-rc2-next-20130927-03100-ga0cf1ab:5 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