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SubjectRe: sysfs lockdep complaint
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On Sat, 2010-02-20 at 21:51 +0800, Américo Wang wrote:

> Please send us the backtraces you got, we could expect this.

The first one is fun:

[ 1.576226] windfarm: initializing for dual-core desktop G5
[ 1.577182] BUG: key 6b6b6b6b6b6b6b6b not in .data!
[ 1.577190] ------------[ cut here ]------------
[ 1.577192] Badness at kernel/lockdep.c:2706
[ 1.577196] NIP: c0000000000b6a68 LR: c0000000000b6a4c CTR: c0000000003afedc
[ 1.577200] REGS: c000000216197620 TRAP: 0700 Not tainted (2.6.33-rc8-wl-64022-gcdee415-dirty)
[ 1.577203] MSR: 9000000000029032 <EE,ME,CE,IR,DR> CR: 28000082 XER: 200fffff
[ 1.577214] TASK = c000000216198000[1] 'swapper' THREAD: c000000216194000 CPU: 2
[ 1.577217] GPR00: 0000000000000000 c0000002161978a0 c000000000b10328 0000000000000001
[ 1.577223] GPR04: 0000000000000001 c000000000071638 0000000000000000 0000000000000002
[ 1.577229] GPR08: 0000000000000000 c0000000014320f0 0000000000000001 c000000000b27638
[ 1.577235] GPR12: 0000000000000041 c000000000b21880 0000000000000056 0000000001400000
[ 1.577241] GPR16: 0000000000240ee0 c000000000718923 c0000000007ff6ec 000000000000005e
[ 1.577247] GPR20: 00000000ffb30f40 c0000000007188b9 0000000000000000 0000000000240ed0
[ 1.577253] GPR24: 0000000000000108 0000000000000000 fffffffffffffff4 c00000021488b000
[ 1.577259] GPR28: 6b6b6b6b6b6b6b6b c00000021488bcc8 c000000000a77780 c0000002161978a0
[ 1.577271] NIP [c0000000000b6a68] .lockdep_init_map+0x148/0x66c
[ 1.577276] LR [c0000000000b6a4c] .lockdep_init_map+0x12c/0x66c
[ 1.577278] Call Trace:
[ 1.577282] [c0000002161978a0] [c0000000000b6a34] .lockdep_init_map+0x114/0x66c (unreliable)
[ 1.577289] [c0000002161979a0] [c0000000001efd88] .sysfs_add_file_mode+0x90/0x124
[ 1.577294] [c000000216197a60] [c0000000001efe58] .sysfs_add_file+0x3c/0x50
[ 1.577299] [c000000216197b00] [c0000000001effb4] .sysfs_create_file+0x5c/0x74
[ 1.577305] [c000000216197ba0] [c0000000004292b0] .device_create_file+0x40/0x5c
[ 1.577311] [c000000216197c40] [c000000000441178] .wf_register_control+0x108/0x178
[ 1.577316] [c000000216197cf0] [c0000000004440a4] .smu_fan_create+0x548/0x598
[ 1.577323] [c000000216197da0] [c0000000007e5e6c] .smu_controls_init+0xb0/0x1f4
[ 1.577329] [c000000216197e40] [c0000000000084e4] .do_one_initcall+0xac/0x204
[ 1.577335] [c000000216197ef0] [c0000000007b84b8] .kernel_init+0x1f0/0x270
[ 1.577340] [c000000216197f90] [c000000000028f8c] .kernel_thread+0x54/0x70
[ 1.577343] Instruction dump:
[ 1.577346] e93e81c8 80090000 2f800000 409e04f4 482fa5e9 60000000 2fa30000 419e04e4
[ 1.577355] e93e81d0 80090000 2f800000 409e04d4 <0fe00000> 480004cc fb9d0000 e93e8018
[ 1.577375] BUG: key 6b6b6b6b6b6b6b6b not in .data!
[ 1.577385] BUG: key 6b6b6b6b6b6b6b6b not in .data!
[ 1.577397] BUG: key 6b6b6b6b6b6b6b6b not in .data!
[ 1.577413] BUG: key 6b6b6b6b6b6b6b6b not in .data!
[ 1.577423] BUG: key 6b6b6b6b6b6b6b6b not in .data!
[ 1.577435] BUG: key 6b6b6b6b6b6b6b6b not in .data!
[ 1.577446] BUG: key 6b6b6b6b6b6b6b6b not in .data!
[ 1.839465] BUG: key 6b6b6b6b6b6b6b6b not in .data!
key pointing to something freed? wtf?

johannes

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