[ ssic-linux-Bugs-1944781 ] unlocking unlocked lock in ripc_drop_locks

Bugs item #1944781, was opened at 2008-04-17 12:23
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Category: IPC
Group: v1.9.3
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: John Hughes (hughesj)
Assigned to: Nobody/Anonymous (nobody)
Summary: unlocking unlocked lock in ripc_drop_locks

Initial Comment:
------------[ cut here ]------------
kernel BUG at include/asm/spinlock.h:112!
invalid operand: 0000 [#1]
SMP
Modules linked in: i915 drm button ac battery parport_pc parport floppy pcspkr snd_intel8x0 snd_ac97_codec snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd soundcore snd_page_alloc i2c_i801 i2c_core ata_piix libata hw_random ehci_hcd uhci_hcd sr_mod sd_mod mptsas mptscsih mptbase scsi_mod tg3 e1000
CPU:    0
EIP:    0060:[<c046290b>]    Not tainted VLI
EFLAGS: 00010202   (2.6.11-jh-1)
EIP is at _spin_unlock+0x1b/0x30
eax: 00000001   ebx: c0750140   ecx: c0750101   edx: f7e12e08
esi: f70c2400   edi: c0753360   ebp: f7032f10   esp: f7032f10
ds: 007b   es: 007b   ss: 0068
Process icssvr_daemon (pid: 197135, threadinfo=f7032000 task=f70cd930)
Stack: f7032f18 c01cecbb f7032f28 c01ce77e f7e12e08 02668001 f7032f44 c0261dd5
       02668001 f7e12e08 c0750140 00000001 f7032f5c f7032f6c c0258708 00000003
       f7032f5c 02668001 00000000 00000000 02668001 00000002 00000002 f7032fec
Call Trace:
 [<c010694f>] show_stack+0x7f/0xa0
 [<c0106b04>] show_registers+0x164/0x220
 [<c0106e94>] die+0xf4/0x1c0
 [<c0107015>] do_trap+0xb5/0xc0
 [<c01072cc>] do_invalid_op+0xbc/0xd0
 [<c01065a3>] error_code+0x2b/0x30
 [<c01cecbb>] ipc_unlock+0xb/0x10
 [<c01ce77e>] ipc_drop_locks+0x1e/0x40
 [<c0261dd5>] ripc_drop_locks+0x45/0x60
 [<c0258708>] svr_ripc_drop_locks+0x58/0xb0
 [<c020abb3>] icssvr_daemon+0x2f3/0xab0
 [<c01023a5>] kernel_thread_helper+0x5/0x10
Code: 1c 0c 49 c0 eb e6 8d 76 00 8d bc 27 00 00 00 00 55 89 c2 89 e5 81 78 04 ad 4e ad de b1 01 75 15 0f b6 02 84 c0 7f 04 86 0a 5d c3 <0f> 0b 70 00 1c 0c 49 c0 eb f2 0f 0b 6f 00 1c 0c 49 c0 eb e1 90


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