linux-2.6.today: rtc_cmos init oops/panic inrtc_sysfs_remove_device()

From: Mike Galbraith
Date: Tue Feb 20 2007 - 05:26:45 EST


Kernel I captured this from is dirty, but virgin source does exactly the
same. gzipped config attached.


[ 32.211999] rtc_cmos 00:03: rtc core: registered rtc_cmos as rtc0
[ 32.227226] BUG: unable to handle kernel NULL pointer dereference at virtual address 00000018
[ 32.245198] printing eip:
[ 32.257172] c03c7cc8
[ 32.268434] *pde = 00000000
[ 32.280222] Oops: 0000 [#1]
[ 32.291997] PREEMPT SMP
[ 32.303352] Modules linked in:
[ 32.315009] CPU: 0
[ 32.315010] EIP: 0060:[<c03c7cc8>] Not tainted VLI
[ 32.315011] EFLAGS: 00010202 (2.6.20-smp-g575d5e72-dirty #25)
[ 32.353865] EIP is at rtc_sysfs_remove_device+0x18/0x4b
[ 32.367596] eax: 00000000 ebx: dfef0454 ecx: c03c7cb0 edx: c064212c
[ 32.383044] esi: dfef0454 edi: c19c5f00 ebp: c18ede3c esp: c18ede38
[ 32.398590] ds: 007b es: 007b fs: 00d8 gs: 0000 ss: 0068
[ 32.413219] Process swapper (pid: 1, ti=c18ed000 task=c18eca50 task.ti=c18ed000)
[ 32.420821] Stack: c064212c c18ede5c c0350b5e c19c5e74 00000000 c19c5f08 dfef0454 dfef050c
[ 32.438377] c1997244 c18ede68 c0350c21 dfef0454 c18ede78 c03c752f fffffff0 c199741c
[ 32.456025] c18edea8 c03c931d 00000000 00000020 00000004 c04f8c60 00000008 00000000
[ 32.473692] Call Trace:
[ 32.493941] [<c0105146>] show_trace_log_lvl+0x1a/0x30
[ 32.508144] [<c0105201>] show_stack_log_lvl+0xa5/0xca
[ 32.522210] [<c0105422>] show_registers+0x1fc/0x341
[ 32.536006] [<c0105683>] die+0x11c/0x22b
[ 32.548692] [<c011cb3b>] do_page_fault+0x160/0x575
[ 32.562185] [<c04cea7c>] error_code+0x7c/0x84
[ 32.575029] [<c0350b5e>] class_device_del+0x72/0x12a
[ 32.588332] [<c0350c21>] class_device_unregister+0xb/0x15
[ 32.601816] [<c03c752f>] rtc_device_unregister+0x2c/0x30
[ 32.615146] [<c03c931d>] cmos_pnp_probe+0x147/0x1ee
[ 32.627927] [<c03200fc>] pnp_device_probe+0x4c/0xa0
[ 32.640614] [<c03501f3>] really_probe+0x5c/0x163
[ 32.652999] [<c0350397>] driver_probe_device+0x9d/0xa9
[ 32.665800] [<c03504bc>] __driver_attach+0x84/0x86
[ 32.678364] [<c034f7e3>] bus_for_each_dev+0x44/0x62
[ 32.690966] [<c03500bf>] driver_attach+0x19/0x1b
[ 32.703177] [<c034fb0a>] bus_add_driver+0x6a/0x185
[ 32.715467] [<c0350659>] driver_register+0x54/0x84
[ 32.727547] [<c031fef1>] pnp_register_driver+0x17/0x19
[ 32.739810] [<c067f648>] cmos_init+0xd/0xf
[ 32.751078] [<c066358c>] init+0x114/0x23c
[ 32.762285] [<c0104dbb>] kernel_thread_helper+0x7/0x1c
[ 32.774782] =======================
[ 32.785651] Code: 8b 45 f0 e8 0a 5a 10 00 89 f8 83 c4 04 5b 5e 5f 5d c3 90 55 89 e5 53 89 c3 8b 40 6c f6 80 2c 01 00 00 01 74 0d 8b 83 b4 00 00 00 <8b> 40 18 85 c0 75 10 8d 43 08 ba 48 21 64 c0 e8 75 e4 de ff 5b
[ 32.830191] EIP: [<c03c7cc8>] rtc_sysfs_remove_device+0x18/0x4b SS:ESP 0068:c18ede38
[ 32.846381] Kernel panic - not syncing: Attempted to kill init!

Attachment: config.gz
Description: GNU Zip compressed data