HEAD is now at 988a7cc... 0day head guard for 'devel-roam-i386-201407222107' git checkout 9a3c4145af32125c5ee39c0272662b47307a8323 ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r2-0722/linux-devel:devel-roam-i386-201407222107:9a3c4145af32125c5ee39c0272662b47307a8323:bisect-linux-8 2014-07-22-21:53:23 9a3c4145af32125c5ee39c0272662b47307a8323 reuse /kernel/i386-randconfig-r2-0722/9a3c4145af32125c5ee39c0272662b47307a8323/vmlinuz-3.16.0-rc6 2014-07-22-21:53:23 detecting boot state 2 7 9 19 20 SUCCESS bisect: good commit 9a3c4145af32125c5ee39c0272662b47307a8323 git bisect start 988a7cce9cf281d8954af4f421419713e2d6499a 9a3c4145af32125c5ee39c0272662b47307a8323 -- /c/kernel-tests/linear-bisect: ["-b", "988a7cce9cf281d8954af4f421419713e2d6499a", "-g", "9a3c4145af32125c5ee39c0272662b47307a8323", "/c/kernel-tests/bisect-test-boot-failure.sh", "/c/boot-bisect/linux-8/obj-bisect"] Bisecting: 68 revisions left to test after this (roughly 7 steps) [0b6fe2b988caee808f3ccb616fa22f2a56a042e8] Merge 'wsa/i2c/for-next' into devel-roam-i386-201407222107 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r2-0722/linux-devel:devel-roam-i386-201407222107:0b6fe2b988caee808f3ccb616fa22f2a56a042e8:bisect-linux-8 2014-07-22-21:55:53 0b6fe2b988caee808f3ccb616fa22f2a56a042e8 compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r2-0722-0b6fe2b988caee808f3ccb616fa22f2a56a042e8 Check for kernel in /kernel/i386-randconfig-r2-0722/0b6fe2b988caee808f3ccb616fa22f2a56a042e8 waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r2-0722-0b6fe2b988caee808f3ccb616fa22f2a56a042e8 kernel: /kernel/i386-randconfig-r2-0722/0b6fe2b988caee808f3ccb616fa22f2a56a042e8/vmlinuz-3.16.0-rc6-00039-g0b6fe2b 2014-07-22-21:57:53 detecting boot state 20 SUCCESS Bisecting: 29 revisions left to test after this (roughly 5 steps) [d127240d43380e9e1463fd8cde0134f85b66c261] Merge 'linux-sti/sti-dt-for-v3.17-1' into devel-roam-i386-201407222107 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r2-0722/linux-devel:devel-roam-i386-201407222107:d127240d43380e9e1463fd8cde0134f85b66c261:bisect-linux-8 2014-07-22-21:58:24 d127240d43380e9e1463fd8cde0134f85b66c261 compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r2-0722-d127240d43380e9e1463fd8cde0134f85b66c261 Check for kernel in /kernel/i386-randconfig-r2-0722/d127240d43380e9e1463fd8cde0134f85b66c261 waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r2-0722-d127240d43380e9e1463fd8cde0134f85b66c261 kernel: /kernel/i386-randconfig-r2-0722/d127240d43380e9e1463fd8cde0134f85b66c261/vmlinuz-3.16.0-rc6-00057-gd127240 2014-07-22-22:00:24 detecting boot state 20 SUCCESS Bisecting: 11 revisions left to test after this (roughly 4 steps) [1713b12636b3daab7ea2625efa376119c7b490de] Merge 'dvdhrm/fops' into devel-roam-i386-201407222107 running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r2-0722/linux-devel:devel-roam-i386-201407222107:1713b12636b3daab7ea2625efa376119c7b490de:bisect-linux-8 2014-07-22-22:00:54 1713b12636b3daab7ea2625efa376119c7b490de compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r2-0722-1713b12636b3daab7ea2625efa376119c7b490de Check for kernel in /kernel/i386-randconfig-r2-0722/1713b12636b3daab7ea2625efa376119c7b490de waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r2-0722-1713b12636b3daab7ea2625efa376119c7b490de kernel: /kernel/i386-randconfig-r2-0722/1713b12636b3daab7ea2625efa376119c7b490de/vmlinuz-3.16.0-rc6-00067-g1713b12 2014-07-22-22:03:54 detecting boot state 1 TEST FAILURE [ 3.492795] debug: unmapping init [mem 0xb5ebd000-0xb5f0efff] [ 3.493669] Write protecting the kernel text: 6640k [ 3.494345] Write protecting the kernel read-only data: 4012k [ 3.495584] BUG: unable to handle kernel NULL pointer dereference at 00000104 [ 3.496044] IP: [] get_unmapped_area+0x3a/0xc6 [ 3.496044] *pde = 00000000 [ 3.496044] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 3.496044] CPU: 0 PID: 1 Comm: init Not tainted 3.16.0-rc6-00067-g1713b12 #3 [ 3.496044] task: b0030010 ti: b0032000 task.ti: b0032000 [ 3.496044] EIP: 0060:[] EFLAGS: 00010246 CPU: 0 [ 3.496044] EIP is at get_unmapped_area+0x3a/0xc6 [ 3.496044] EAX: c290fdc0 EBX: 00000000 ECX: 00003000 EDX: 00000000 [ 3.496044] ESI: 00003000 EDI: b5281f08 EBP: b0033eac ESP: b0033e9c [ 3.496044] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 3.496044] CR0: 80050033 CR2: 00000104 CR3: 12910000 CR4: 00040690 [ 3.496044] Stack: [ 3.496044] 47e77cc0 47e77cc0 b587f198 b0030010 b0033ed0 b521bff5 00000000 00000000 [ 3.496044] c290fe1c c290fdc0 47e77cc0 47e767c8 c28fb280 b0033f50 b52b5d72 b0032000 [ 3.496044] 00002000 00000006 0001d000 00000000 00000001 47e77cc0 0804fad4 0804f000 [ 3.496044] Call Trace: [ 3.496044] [] arch_setup_additional_pages+0x4e/0x188 [ 3.496044] [] load_elf_binary+0x9c5/0xff7 [ 3.496044] [] search_binary_handler+0x41/0x95 [ 3.496044] [] do_execve+0x37c/0x48a [ 3.496044] [] run_init_process+0x1c/0x1e [ 3.496044] [] kernel_init+0x34/0xb8 [ 3.496044] [] ret_from_kernel_thread+0x20/0x30 [ 3.496044] [] ? rest_init+0x10e/0x10e [ 3.496044] Code: 76 0a b9 f4 ff ff ff e9 a1 00 00 00 89 c3 a1 20 a9 c7 b5 8b 80 10 02 00 00 85 db 8b 78 0c 74 0b 8b 43 14 8b 40 58 85 c0 0f 45 f8 <83> bb 04 01 00 00 00 74 31 89 d8 89 55 f0 e8 f7 ea ff ff b9 ed [ 3.496044] EIP: [] get_unmapped_area+0x3a/0xc6 SS:ESP 0068:b0033e9c [ 3.496044] CR2: 0000000000000104 [ 3.527034] ---[ end trace 50c68dd9e8a7e998 ]--- [ 3.527611] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-r2-0722/1713b12636b3daab7ea2625efa376119c7b490de/dmesg-yocto-vp-38:20140722220432:i386-randconfig-r2-0722:3.16.0-rc6-00067-g1713b12:3 /kernel/i386-randconfig-r2-0722/1713b12636b3daab7ea2625efa376119c7b490de/dmesg-yocto-vp-7:20140722220432:i386-randconfig-r2-0722:3.16.0-rc6-00067-g1713b12:3 /kernel/i386-randconfig-r2-0722/1713b12636b3daab7ea2625efa376119c7b490de/dmesg-yocto-vp-44:20140722220435:i386-randconfig-r2-0722:3.16.0-rc6-00067-g1713b12:3 /kernel/i386-randconfig-r2-0722/1713b12636b3daab7ea2625efa376119c7b490de/dmesg-yocto-vp-53:20140722220434:i386-randconfig-r2-0722:3.16.0-rc6-00067-g1713b12:3 /kernel/i386-randconfig-r2-0722/1713b12636b3daab7ea2625efa376119c7b490de/dmesg-yocto-vp-6:20140722220434:i386-randconfig-r2-0722:3.16.0-rc6-00067-g1713b12:3 /kernel/i386-randconfig-r2-0722/1713b12636b3daab7ea2625efa376119c7b490de/dmesg-yocto-kbuild-14:20140722220232:i386-randconfig-r2-0722:3.16.0-rc6-00067-g1713b12:3 /kernel/i386-randconfig-r2-0722/1713b12636b3daab7ea2625efa376119c7b490de/dmesg-yocto-vp-10:20140722220443:i386-randconfig-r2-0722:3.16.0-rc6-00067-g1713b12:3 /kernel/i386-randconfig-r2-0722/1713b12636b3daab7ea2625efa376119c7b490de/dmesg-yocto-vp-64:20140722220443:i386-randconfig-r2-0722:3.16.0-rc6-00067-g1713b12:3 /kernel/i386-randconfig-r2-0722/1713b12636b3daab7ea2625efa376119c7b490de/dmesg-yocto-vp-9:20140722220443:i386-randconfig-r2-0722:3.16.0-rc6-00067-g1713b12:3 0:9:10 all_good:bad:all_bad boots 2014-07-22 22:04:25 REPEAT COUNT: 21 # /c/boot-bisect/linux-8/obj-bisect/.repeat linear-bisect: bad branch may be dvdhrm/fops linear-bisect: handle over to git bisect linear-bisect: git bisect start 1713b12636b3daab7ea2625efa376119c7b490de d127240d43380e9e1463fd8cde0134f85b66c261 -- Previous HEAD position was 1713b12... Merge 'dvdhrm/fops' into devel-roam-i386-201407222107 HEAD is now at b4d3318... Merge remote-tracking branch 'crypto/master' Bisecting: 4 revisions left to test after this (roughly 2 steps) [47702c7c4c9c1e8514ca52e367cf0b71e50177f8] kactive: make kernfs "active-ref" generic linear-bisect: git bisect run /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-8/obj-bisect running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r2-0722/linux-devel:devel-roam-i386-201407222107:47702c7c4c9c1e8514ca52e367cf0b71e50177f8:bisect-linux-8 2014-07-22-22:04:28 47702c7c4c9c1e8514ca52e367cf0b71e50177f8 compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r2-0722-47702c7c4c9c1e8514ca52e367cf0b71e50177f8 Check for kernel in /kernel/i386-randconfig-r2-0722/47702c7c4c9c1e8514ca52e367cf0b71e50177f8 waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r2-0722-47702c7c4c9c1e8514ca52e367cf0b71e50177f8 waiting for completion of /kbuild-tests/build-queue/jaketown-consumer/i386-randconfig-r2-0722-47702c7c4c9c1e8514ca52e367cf0b71e50177f8 kernel: /kernel/i386-randconfig-r2-0722/47702c7c4c9c1e8514ca52e367cf0b71e50177f8/vmlinuz-3.16.0-rc5-00230-g47702c7 2014-07-22-22:08:28 detecting boot state .. 2 21 SUCCESS Bisecting: 2 revisions left to test after this (roughly 1 step) [34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a] fs: track fops-depth in task_struct running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r2-0722/linux-devel:devel-roam-i386-201407222107:34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a:bisect-linux-8 2014-07-22-22:10:46 34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r2-0722-34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a Check for kernel in /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r2-0722-34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a waiting for completion of /kbuild-tests/build-queue/roam-i386/i386-randconfig-r2-0722-34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a kernel: /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/vmlinuz-3.16.0-rc5-00232-g34e6b7d 2014-07-22-22:16:49 detecting boot state . TEST FAILURE [ 3.369038] debug: unmapping init [mem 0xba6bc000-0xba70dfff] [ 3.369933] Write protecting the kernel text: 6640k [ 3.370785] Write protecting the kernel read-only data: 4008k [ 3.372116] BUG: unable to handle kernel NULL pointer dereference at 00000104 [ 3.373015] IP: [] get_unmapped_area+0x3a/0xc6 [ 3.373015] *pde = 00000000 [ 3.373015] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 3.373015] CPU: 0 PID: 1 Comm: init Not tainted 3.16.0-rc5-00232-g34e6b7d #202 [ 3.373015] task: b0030010 ti: b0032000 task.ti: b0032000 [ 3.373015] EIP: 0060:[] EFLAGS: 00010246 CPU: 0 [ 3.373015] EIP is at get_unmapped_area+0x3a/0xc6 [ 3.373015] EAX: c2913dc0 EBX: 00000000 ECX: 00003000 EDX: 00000000 [ 3.373015] ESI: 00003000 EDI: b9a81f1b EBP: b0033eac ESP: b0033e9c [ 3.373015] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 3.373015] CR0: 80050033 CR2: 00000104 CR3: 12914000 CR4: 00040690 [ 3.373015] Stack: [ 3.373015] 47e77cc0 47e77cc0 ba07f190 b0030010 b0033ed0 b9a1bff5 00000000 00000000 [ 3.373015] c2913e1c c2913dc0 47e77cc0 47e767c8 c28fa280 b0033f50 b9ab5d85 b0032000 [ 3.373015] 00002000 00000006 0001d000 00000000 00000001 47e77cc0 0804fad4 0804f000 [ 3.373015] Call Trace: [ 3.373015] [] arch_setup_additional_pages+0x4e/0x188 [ 3.373015] [] load_elf_binary+0x9c5/0xff7 [ 3.373015] [] search_binary_handler+0x41/0x95 [ 3.373015] [] do_execve+0x37c/0x48a [ 3.373015] [] run_init_process+0x1c/0x1e [ 3.373015] [] kernel_init+0x34/0xb8 [ 3.373015] [] ret_from_kernel_thread+0x20/0x30 [ 3.373015] [] ? rest_init+0x10e/0x10e [ 3.373015] Code: 76 0a b9 f4 ff ff ff e9 a1 00 00 00 89 c3 a1 20 89 47 ba 8b 80 10 02 00 00 85 db 8b 78 0c 74 0b 8b 43 14 8b 40 58 85 c0 0f 45 f8 <83> bb 04 01 00 00 00 74 31 89 d8 89 55 f0 e8 f7 ea ff ff b9 ed [ 3.373015] EIP: [] get_unmapped_area+0x3a/0xc6 SS:ESP 0068:b0033e9c [ 3.373015] CR2: 0000000000000104 [ 3.395899] ---[ end trace 7375b32cdbaf7091 ]--- [ 3.396519] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-14:20140722221423:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-18:20140722221426:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-1:20140722221424:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-20:20140722221423:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-21:20140722221422:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-22:20140722221426:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-25:20140722221425:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-27:20140722221425:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-31:20140722221422:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-6:20140722221424:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-16:20140722221431:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-19:20140722221431:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-26:20140722221431:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-32:20140722221431:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-10:20140722221431:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-11:20140722221431:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-15:20140722221436:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-31:20140722221434:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-3:20140722221432:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-7:20140722221436:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 /kernel/i386-randconfig-r2-0722/34e6b7dea8bb2c359c29d4b0021967c6de0f1b7a/dmesg-yocto-kbuild-9:20140722221435:i386-randconfig-r2-0722:3.16.0-rc5-00232-g34e6b7d:202 0:21:21 all_good:bad:all_bad boots Bisecting: 0 revisions left to test after this (roughly 0 steps) [bc2d5105254034778034487d8f3aec42db2a5285] fs: add active reference counter to "struct file" running /c/kernel-tests/bisect-test-boot-failure.sh /c/boot-bisect/linux-8/obj-bisect ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r2-0722/linux-devel:devel-roam-i386-201407222107:bc2d5105254034778034487d8f3aec42db2a5285:bisect-linux-8 2014-07-22-22:17:21 bc2d5105254034778034487d8f3aec42db2a5285 compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r2-0722-bc2d5105254034778034487d8f3aec42db2a5285 Check for kernel in /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285 waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r2-0722-bc2d5105254034778034487d8f3aec42db2a5285 waiting for completion of /kbuild-tests/build-queue/jaketown-consumer/i386-randconfig-r2-0722-bc2d5105254034778034487d8f3aec42db2a5285 kernel: /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/vmlinuz-3.16.0-rc5-00231-gbc2d510 2014-07-22-22:23:21 detecting boot state . TEST FAILURE [ 2.690479] debug: unmapping init [mem 0xbf6be000-0xbf70ffff] [ 2.691128] Write protecting the kernel text: 6640k [ 2.691641] Write protecting the kernel read-only data: 4012k [ 2.692492] BUG: unable to handle kernel NULL pointer dereference at 00000104 [ 2.693212] IP: [] get_unmapped_area+0x40/0xef [ 2.693214] *pde = 00000000 [ 2.693214] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 2.693214] CPU: 0 PID: 1 Comm: init Not tainted 3.16.0-rc5-00231-gbc2d510 #2 [ 2.693214] task: b0030010 ti: b0032000 task.ti: b0032000 [ 2.693214] EIP: 0060:[] EFLAGS: 00010246 CPU: 0 [ 2.693214] EIP is at get_unmapped_area+0x40/0xef [ 2.693214] EAX: bb173dc0 EBX: 00000000 ECX: 00003000 EDX: 00000000 [ 2.693214] ESI: bf07f198 EDI: bea81ed4 EBP: b0033eac ESP: b0033e98 [ 2.693214] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 2.693214] CR0: 8005003b CR2: 00000104 CR3: 0b174000 CR4: 00000690 [ 2.693214] Stack: [ 2.693214] 00000000 00003000 00020ca0 bf07f198 b0030010 b0033ed0 bea1bff5 00000000 [ 2.693214] 00000000 bb173e1c bb173dc0 00020ca0 a76ed608 bb15d280 b0033f50 beab5d6c [ 2.693214] b0032000 00002000 00000007 0001f000 00000000 00000001 00020ca0 0002f27c [ 2.693214] Call Trace: [ 2.693214] [] arch_setup_additional_pages+0x4e/0x188 [ 2.693214] [] load_elf_binary+0x9c5/0xff7 [ 2.693214] [] search_binary_handler+0x41/0x95 [ 2.693214] [] do_execve+0x37c/0x48a [ 2.693214] [] run_init_process+0x1c/0x1e [ 2.693214] [] kernel_init+0x34/0xb8 [ 2.693214] [] ret_from_kernel_thread+0x20/0x30 [ 2.693214] [] ? rest_init+0x10e/0x10e [ 2.693214] Code: 76 0a be f4 ff ff ff e9 c4 00 00 00 89 c3 a1 20 a9 47 bf 8b 80 10 02 00 00 85 db 8b 78 0c 74 0b 8b 43 14 8b 40 58 85 c0 0f 45 f8 <8b> b3 04 01 00 00 85 f6 74 54 83 c6 14 31 c9 8d 41 01 89 c2 89 [ 2.693214] EIP: [] get_unmapped_area+0x40/0xef SS:ESP 0068:b0033e98 [ 2.693214] CR2: 0000000000000104 [ 2.709516] ---[ end trace bfc38fd94b96eea3 ]--- [ 2.709960] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-vp-6:20140722222316:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-vp-23:20140722222316:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-vp-61:20140722222316:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-quantal-ivb41-111:20140722222232:i386-randconfig-r2-0722:: /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-quantal-kbuild-11:20140722222112:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-quantal-kbuild-18:20140722222110:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-quantal-kbuild-26:20140722222112:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-quantal-kbuild-3:20140722222113:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-quantal-kbuild-8:20140722222111:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-quantal-kbuild-9:20140722222112:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-ivb41-50:20140722222232:i386-randconfig-r2-0722:: /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-ivb41-62:20140722222230:i386-randconfig-r2-0722:: /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-ivb41-7:20140722222230:i386-randconfig-r2-0722:: /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-vp-15:20140722222317:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-vp-21:20140722222318:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-vp-22:20140722222318:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-vp-34:20140722222318:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-vp-35:20140722222317:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-vp-45:20140722222317:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-vp-54:20140722222317:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 /kernel/i386-randconfig-r2-0722/bc2d5105254034778034487d8f3aec42db2a5285/dmesg-yocto-vp-8:20140722222318:i386-randconfig-r2-0722:3.16.0-rc5-00231-gbc2d510:2 0:21:21 all_good:bad:all_bad boots bc2d5105254034778034487d8f3aec42db2a5285 is the first bad commit commit bc2d5105254034778034487d8f3aec42db2a5285 Author: David Herrmann Date: Tue Jun 17 22:10:12 2014 +0200 fs: add active reference counter to "struct file" This adds an kactive reference counter to "struct file". This allows to acquire active references on any file that enabled it. Furthermore, all file->f_op->xy() callbacks are modified to acquire an active reference before entering and dropping it afterwards. Drivers have to opt-in to enable this feature. By using fops_file_attach() in the ->open() callback, they can enable the active-counter on the file. From now on they can use fops_file_disable() and fops_file_drain() to prevent any new active-references from being acquired and waiting for all those to be released. All those protected files have to be linked to a parent device (called "struct fops_device"). A driver has to allocate and manage those. The parent device can be used to atomically disable and drain all linked files. Signed-off-by: David Herrmann :040000 040000 a8aa6699bfab002e8174ee0c2ea66e39e00c5c68 7ac7ee1eabe2ffed0eb3ce34d4e1f19c0a54eb70 M fs :040000 040000 a78e3d620a87856698d1b7055cab8ea7e202a5c7 a22622241348c98f3c54caf4eca44c71485d23f2 M include bisect run success Previous HEAD position was bc2d510... fs: add active reference counter to "struct file" HEAD is now at 47702c7... kactive: make kernfs "active-ref" generic ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r2-0722/linux-devel:devel-roam-i386-201407222107:47702c7c4c9c1e8514ca52e367cf0b71e50177f8:bisect-linux-8 2014-07-22-22:23:55 47702c7c4c9c1e8514ca52e367cf0b71e50177f8 reuse /kernel/i386-randconfig-r2-0722/47702c7c4c9c1e8514ca52e367cf0b71e50177f8/vmlinuz-3.16.0-rc5-00230-g47702c7 2014-07-22-22:23:55 detecting boot state 24 36 55 63 SUCCESS Previous HEAD position was 47702c7... kactive: make kernfs "active-ref" generic HEAD is now at 988a7cc... 0day head guard for 'devel-roam-i386-201407222107' ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r2-0722/linux-devel:devel-roam-i386-201407222107:988a7cce9cf281d8954af4f421419713e2d6499a:bisect-linux-8 TEST FAILURE [ 6.354781] debug: unmapping init [mem 0xbbcbb000-0xbbd0cfff] [ 6.355923] Write protecting the kernel text: 6640k [ 6.356830] Write protecting the kernel read-only data: 4008k [ 6.358283] BUG: unable to handle kernel NULL pointer dereference at 00000104 [ 6.359015] IP: [] get_unmapped_area+0x3a/0xc6 [ 6.359015] *pde = 00000000 [ 6.359015] Oops: 0000 [#1] DEBUG_PAGEALLOC [ 6.359015] CPU: 0 PID: 1 Comm: init Not tainted 3.16.0-rc6-00051-g988a7cc #185 [ 6.359015] task: b0030010 ti: b0032000 task.ti: b0032000 [ 6.359015] EIP: 0060:[] EFLAGS: 00010246 CPU: 0 [ 6.359015] EIP is at get_unmapped_area+0x3a/0xc6 [ 6.359015] EAX: bc97adc0 EBX: 00000000 ECX: 00003000 EDX: 00000000 [ 6.359015] ESI: 00003000 EDI: bb081f08 EBP: b0033eac ESP: b0033e9c [ 6.359015] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 6.359015] CR0: 80050033 CR2: 00000104 CR3: 0c97b000 CR4: 00040690 [ 6.359015] Stack: [ 6.359015] 00020ca0 00020ca0 bb67f190 b0030010 b0033ed0 bb01bff5 00000000 00000000 [ 6.359015] bc97ae1c bc97adc0 00020ca0 a77b0608 bc966200 b0033f50 bb0b5d72 b0032000 [ 6.359015] 00002000 00000007 0001f000 00000000 00000001 00020ca0 0002f27c 0002e5d8 [ 6.359015] Call Trace: [ 6.359015] [] arch_setup_additional_pages+0x4e/0x188 [ 6.359015] [] load_elf_binary+0x9c5/0xff7 [ 6.359015] [] search_binary_handler+0x41/0x95 [ 6.359015] [] do_execve+0x37c/0x48a [ 6.359015] [] run_init_process+0x1c/0x1e [ 6.359015] [] kernel_init+0x34/0xb8 [ 6.359015] [] ret_from_kernel_thread+0x20/0x30 [ 6.359015] [] ? rest_init+0x10e/0x10e [ 6.359015] Code: 76 0a b9 f4 ff ff ff e9 a1 00 00 00 89 c3 a1 20 89 a7 bb 8b 80 10 02 00 00 85 db 8b 78 0c 74 0b 8b 43 14 8b 40 58 85 c0 0f 45 f8 <83> bb 04 01 00 00 00 74 31 89 d8 89 55 f0 e8 f7 ea ff ff b9 ed [ 6.359015] EIP: [] get_unmapped_area+0x3a/0xc6 SS:ESP 0068:b0033e9c [ 6.359015] CR2: 0000000000000104 [ 6.388864] ---[ end trace 20dcc502ae78baf2 ]--- [ 6.389648] Kernel panic - not syncing: Fatal exception /kernel/i386-randconfig-r2-0722/988a7cce9cf281d8954af4f421419713e2d6499a/dmesg-quantal-kbuild-3:20140722215055:i386-randconfig-r2-0722:3.16.0-rc6-00051-g988a7cc:185 /kernel/i386-randconfig-r2-0722/988a7cce9cf281d8954af4f421419713e2d6499a/dmesg-quantal-kbuild-31:20140722215056:i386-randconfig-r2-0722:3.16.0-rc6-00051-g988a7cc:185 /kernel/i386-randconfig-r2-0722/988a7cce9cf281d8954af4f421419713e2d6499a/dmesg-quantal-kbuild-5:20140722215056:i386-randconfig-r2-0722:3.16.0-rc6-00051-g988a7cc:185 /kernel/i386-randconfig-r2-0722/988a7cce9cf281d8954af4f421419713e2d6499a/dmesg-quantal-kbuild-12:20140722215056:i386-randconfig-r2-0722:3.16.0-rc6-00051-g988a7cc:185 /kernel/i386-randconfig-r2-0722/988a7cce9cf281d8954af4f421419713e2d6499a/dmesg-quantal-kbuild-6:20140722215051:i386-randconfig-r2-0722:3.16.0-rc6-00051-g988a7cc:185 /kernel/i386-randconfig-r2-0722/988a7cce9cf281d8954af4f421419713e2d6499a/dmesg-yocto-kbuild-1:20140722215046:i386-randconfig-r2-0722:3.16.0-rc6-00051-g988a7cc:185 /kernel/i386-randconfig-r2-0722/988a7cce9cf281d8954af4f421419713e2d6499a/dmesg-quantal-kbuild-8:20140722215056:i386-randconfig-r2-0722:3.16.0-rc6-00051-g988a7cc:185 /kernel/i386-randconfig-r2-0722/988a7cce9cf281d8954af4f421419713e2d6499a/dmesg-quantal-kbuild-23:20140722215058:i386-randconfig-r2-0722:3.16.0-rc6-00051-g988a7cc:185 /kernel/i386-randconfig-r2-0722/988a7cce9cf281d8954af4f421419713e2d6499a/dmesg-yocto-kbuild-6:20140722215046:i386-randconfig-r2-0722:3.16.0-rc6-00051-g988a7cc:185 /kernel/i386-randconfig-r2-0722/988a7cce9cf281d8954af4f421419713e2d6499a/dmesg-quantal-kbuild-7:20140722215055:i386-randconfig-r2-0722:3.16.0-rc6-00051-g988a7cc:185 /kernel/i386-randconfig-r2-0722/988a7cce9cf281d8954af4f421419713e2d6499a/dmesg-yocto-vp-29:20140722211446:i386-randconfig-r2-0722:3.16.0-rc6-00051-g988a7cc:185 0:11:11 all_good:bad:all_bad boots HEAD is now at 988a7cc 0day head guard for 'devel-roam-i386-201407222107' ========= linus/master ========= Previous HEAD position was 988a7cc... 0day head guard for 'devel-roam-i386-201407222107' HEAD is now at 15ba223... Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r2-0722/linus:master:15ba2236f3556fc01b9ca91394465152b5ea74b6:bisect-linux-8 2014-07-22-22:26:06 15ba2236f3556fc01b9ca91394465152b5ea74b6 reuse /kernel/i386-randconfig-r2-0722/15ba2236f3556fc01b9ca91394465152b5ea74b6/vmlinuz-3.16.0-rc6-00075-g15ba223 2014-07-22-22:26:06 detecting boot state 31 33 43 62................ 63 SUCCESS ========= next/master ========= From git://gitmirror/next + 318cd2a...e0e636d akpm -> next/akpm (forced update) + 64e3245...9f2c26a akpm-base -> next/akpm-base (forced update) + a20416c...594a8bb master -> next/master (forced update) 1795cd9..d057190 stable -> next/stable From git://gitmirror/next * [new tag] next-20140715 -> next-20140715 * [new tag] next-20140716 -> next-20140716 * [new tag] next-20140717 -> next-20140717 * [new tag] next-20140718 -> next-20140718 * [new tag] next-20140721 -> next-20140721 Previous HEAD position was 15ba223... Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net HEAD is now at 594a8bb... Add linux-next specific files for 20140721 ls -a /kbuild-tests/run-queue/kvm/i386-randconfig-r2-0722/next:master:594a8bbcd415c795f54ee8b07f64ba313cc6074e:bisect-linux-8 2014-07-22-22:37:41 594a8bbcd415c795f54ee8b07f64ba313cc6074e compiling Queued build task to /kbuild-tests/build-queue/i386-randconfig-r2-0722-594a8bbcd415c795f54ee8b07f64ba313cc6074e Check for kernel in /kernel/i386-randconfig-r2-0722/594a8bbcd415c795f54ee8b07f64ba313cc6074e waiting for completion of /kbuild-tests/build-queue/i386-randconfig-r2-0722-594a8bbcd415c795f54ee8b07f64ba313cc6074e status: FAIL: build error 2014-07-22 22:41:41 Kernel build fail or timeout 2014-07-22-22:41:41 594a8bbcd415c795f54ee8b07f64ba313cc6074e SKIP BROKEN BUILD Check /kbuild-tests/build-served/i386-randconfig-r2-0722-594a8bbcd415c795f54ee8b07f64ba313cc6074e