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

[Mike Galbraith]

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