compiz kernel null pointer mutex_lock
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
compiz (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned |
Bug Description
First, this bug is similar a bunch of other bugs, but I wasn't sure it was identical to any of the existing ones so I hope someone else can merge it for me if it is in fact a duplicate.
Second, this appears to be a bug in either compiz or the kernel.
I'm using ubuntu 11.10 everything was up to date at the time the crash occurred.
Compiz info:
compiz:
Installed: (none)
Candidate: 1:0.9.6+
Version table:
1:
500 http://
1:
500 http://
Addressing what I expected to happen and what happened. I'm not actually sure, as I wasn't using the computer at the time. But best I can tell it just quit working on its own. It was displaying the screensaver at the time, glslideshow in xscreensaver, and it was making the image to display (I make a clock display in imagemagick and use glslideshow to display it), but I don't think it was doing anything else. Obviously this might be hard to reproduce. Here's what I got out of /var/log/syslog, from where it starts to look suspicious to where the log ended on that date (I hard restarted the machine a few days later).
Dec 10 06:07:43 poseidon kernel: [1032171.425641] compiz[28802]: segfault at 13460 ip 0000000000013460 sp 00007fff39726f28 error 14 in compiz[
Dec 10 06:07:43 poseidon kernel: [1032171.427127] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040
Dec 10 06:07:43 poseidon kernel: [1032171.427130] IP: [<ffffffff815e8
Dec 10 06:07:43 poseidon kernel: [1032171.427138] PGD 0
Dec 10 06:07:43 poseidon kernel: [1032171.427139] Oops: 0002 [#1] SMP
Dec 10 06:07:43 poseidon kernel: [1032171.427142] CPU 3
Dec 10 06:07:43 poseidon kernel: [1032171.427143] Modules linked in: parport_pc ppdev nls_iso8859_1 nls_cp437 btrfs libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs reiserfs joydev hidp bnep rfcomm pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv vesafb zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) spl zlib_deflate binfmt_misc snd_hda_codec_hdmi btusb bluetooth snd_seq_midi snd_rawmidi snd_seq_midi_event snd_hda_
Dec 10 06:07:43 poseidon kernel: [1032171.427179]
Dec 10 06:07:43 poseidon kernel: [1032171.427182] Pid: 28802, comm: compiz Tainted: P 3.0.0-13-generic #22-Ubuntu Gigabyte Technology Co., Ltd. EX58-UD3R/EX58-UD3R
Dec 10 06:07:43 poseidon kernel: [1032171.427185] RIP: 0010:[<
Dec 10 06:07:43 poseidon kernel: [1032171.427188] RSP: 0000:ffff8801c3
Dec 10 06:07:43 poseidon kernel: [1032171.427190] RAX: 0000000000000000 RBX: 0000000000000040 RCX: ffff8801c2a69ec0
Dec 10 06:07:43 poseidon kernel: [1032171.427191] RDX: ffff8801c3a03fd8 RSI: ffff8801b5e21ee0 RDI: 0000000000000040
Dec 10 06:07:43 poseidon kernel: [1032171.427193] RBP: ffff8801c3a03b78 R08: 00007f9c9af1f000 R09: dead000000100100
Dec 10 06:07:43 poseidon kernel: [1032171.427194] R10: dead000000200200 R11: dead000000100100 R12: 0000000000000040
Dec 10 06:07:43 poseidon kernel: [1032171.427196] R13: ffff8801c2adf600 R14: 0000000000000000 R15: 0000000000000000
Dec 10 06:07:43 poseidon kernel: [1032171.427198] FS: 000000000000000
Dec 10 06:07:43 poseidon kernel: [1032171.427200] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Dec 10 06:07:43 poseidon kernel: [1032171.427201] CR2: 0000000000000040 CR3: 00000001b632d000 CR4: 00000000000006e0
Dec 10 06:07:43 poseidon kernel: [1032171.427203] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
Dec 10 06:07:43 poseidon kernel: [1032171.427204] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Dec 10 06:07:43 poseidon kernel: [1032171.427206] Process compiz (pid: 28802, threadinfo ffff8801c3a02000, task ffff8801a19c5c80)
Dec 10 06:07:43 poseidon kernel: [1032171.427207] Stack:
Dec 10 06:07:43 poseidon kernel: [1032171.427209] ffff88019eb8c210 0000000000000040 ffff8801c3a03ba8 ffffffff81133cbf
Dec 10 06:07:43 poseidon kernel: [1032171.427211] ffff88019eb8c210 ffff88019eb8c160 0000000000000000 ffff8801c3a03c08
Dec 10 06:07:43 poseidon kernel: [1032171.427214] ffff8801c3a03bf8 ffffffff8112cdb4 ffff8801c3a03c70 00007f9c91b18000
Dec 10 06:07:43 poseidon kernel: [1032171.427216] Call Trace:
Dec 10 06:07:43 poseidon kernel: [1032171.427221] [<ffffffff81133
Dec 10 06:07:43 poseidon kernel: [1032171.427224] [<ffffffff8112c
Dec 10 06:07:43 poseidon kernel: [1032171.427227] [<ffffffff81136
Dec 10 06:07:43 poseidon kernel: [1032171.427230] [<ffffffff8105c
Dec 10 06:07:43 poseidon kernel: [1032171.427232] [<ffffffff8105c
Dec 10 06:07:43 poseidon kernel: [1032171.427235] [<ffffffff81062
Dec 10 06:07:43 poseidon kernel: [1032171.427238] [<ffffffff810d8
Dec 10 06:07:43 poseidon kernel: [1032171.427241] [<ffffffff815ea
Dec 10 06:07:43 poseidon kernel: [1032171.427243] [<ffffffff81063
Dec 10 06:07:43 poseidon kernel: [1032171.427246] [<ffffffff81063
Dec 10 06:07:43 poseidon kernel: [1032171.427249] [<ffffffff81074
Dec 10 06:07:43 poseidon kernel: [1032171.427254] [<ffffffff8100a
Dec 10 06:07:43 poseidon kernel: [1032171.427256] [<ffffffff815d4
Dec 10 06:07:43 poseidon kernel: [1032171.427260] [<ffffffff81283
Dec 10 06:07:43 poseidon kernel: [1032171.427263] [<ffffffff81167
Dec 10 06:07:43 poseidon kernel: [1032171.427266] [<ffffffff81167
Dec 10 06:07:43 poseidon kernel: [1032171.427268] [<ffffffff8100a
Dec 10 06:07:43 poseidon kernel: [1032171.427270] [<ffffffff815ea
Dec 10 06:07:43 poseidon kernel: [1032171.427272] Code: 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 48 83 ec 10 48 89 5d f0 4c 89 65 f8 66 66 66 66 90 48 89 fb e8 73 f3 ff ff 48 89 df <f0> ff 0f 79 05 e8 16 03 00 00 65 48 8b 04 25 80 cd 00 00 4c 8b
Dec 10 06:07:43 poseidon kernel: [1032171.427292] RIP [<ffffffff815e8
Dec 10 06:07:43 poseidon kernel: [1032171.427294] RSP <ffff8801c3a03b68>
Dec 10 06:07:43 poseidon kernel: [1032171.427295] CR2: 0000000000000040
Dec 10 06:07:43 poseidon kernel: [1032171.427297] ---[ end trace e2b1d6f073ceb684 ]---
Dec 10 06:07:43 poseidon kernel: [1032171.427299] Fixing recursive fault but reboot is needed!
Dec 10 06:08:48 poseidon kernel: [1032236.205150] INFO: rcu_sched_state detected stall on CPU 4 (t=15000 jiffies)
Dec 10 06:11:48 poseidon kernel: [1032416.193266] INFO: rcu_sched_state detected stall on CPU 4 (t=60030 jiffies)
Dec 10 06:14:48 poseidon kernel: [1032596.181430] INFO: rcu_sched_state detected stall on CPU 4 (t=105060 jiffies)
Dec 10 06:17:48 poseidon kernel: [1032776.169640] INFO: rcu_sched_state detected stall on CPU 4 (t=150090 jiffies)
Dec 10 06:19:42 poseidon kernel: [1032889.685652] ------------[ cut here ]------------
Dec 10 06:19:42 poseidon kernel: [1032889.685657] kernel BUG at /build/
Dec 10 06:19:42 poseidon kernel: [1032889.685659] invalid opcode: 0000 [#2] SMP
Dec 10 06:19:42 poseidon kernel: [1032889.685662] CPU 2
Dec 10 06:19:42 poseidon kernel: [1032889.685663] Modules linked in: parport_pc ppdev nls_iso8859_1 nls_cp437 btrfs libcrc32c ufs qnx4 hfsplus hfs minix ntfs vfat msdos fat jfs xfs reiserfs joydev hidp bnep rfcomm pci_stub vboxpci vboxnetadp vboxnetflt vboxdrv vesafb zfs(P) zcommon(P) znvpair(P) zavl(P) zunicode(P) spl zlib_deflate binfmt_misc snd_hda_codec_hdmi btusb bluetooth snd_seq_midi snd_rawmidi snd_seq_midi_event snd_hda_
Dec 10 06:19:42 poseidon kernel: [1032889.685712]
Dec 10 06:19:42 poseidon kernel: [1032889.685715] Pid: 49, comm: kswapd0 Tainted: P D 3.0.0-13-generic #22-Ubuntu Gigabyte Technology Co., Ltd. EX58-UD3R/EX58-UD3R
Dec 10 06:19:42 poseidon kernel: [1032889.685720] RIP: 0010:[<
Dec 10 06:19:42 poseidon kernel: [1032889.685728] RSP: 0018:ffff8801c2
Dec 10 06:19:42 poseidon kernel: [1032889.685730] RAX: 0000000000000000 RBX: ffff8801cf011400 RCX: ffff8801cf0114e0
Dec 10 06:19:42 poseidon kernel: [1032889.685732] RDX: ffff880196b62440 RSI: ffff8801c2d31cdc RDI: ffffffff81a022c0
Dec 10 06:19:42 poseidon kernel: [1032889.685734] RBP: ffff8801c2d31cb0 R08: ffff8801c2d31c68 R09: 0000000000002767
Dec 10 06:19:42 poseidon kernel: [1032889.685737] R10: 0000000000000090 R11: 0000000000000000 R12: ffff880191fc5adc
Dec 10 06:19:42 poseidon kernel: [1032889.685739] R13: ffff8801cf0114e0 R14: 0000000000000008 R15: 000000000000000b
Dec 10 06:19:42 poseidon kernel: [1032889.685741] FS: 000000000Dec 13 23:09:40 poseidon kernel: imklog 5.8.1, log source = /proc/kmsg started.
affects: | ubuntu → compiz (Ubuntu) |
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