Tripped exactly when power management blanked screen and turned off the
backlight. I was dead in the water, sshd was listening but I couldn't
get in, standard power button hit did not work (I let it sit for a few
minutes), only hard reset (hold down power button) would do.
>From most recent 3.0.0-14 kernel (3.0.0-14.24):
Dec 13 10:08:53 xs kernel: [52802.811377] kernel BUG at
/home/milli/local/kernel/ubuntu-oneiric/drivers/gpu/drm/i915/i915_gem.c:3336!
Dec 13 10:08:53 xs kernel: [52802.811475] invalid opcode: 0000 [#1] SMP
Dec 13 10:08:53 xs kernel: [52802.811525] CPU 7
Dec 13 10:08:53 xs kernel: [52802.811547] Modules linked in: openafs(P) bnep
rfcomm coda ip6table_filter ip6_tables xt_state ipt_REJECT xt_CHECKSUM
iptable_filter bridge stp parpor
t_pc ppdev lp parport dm_crypt kvm_intel kvm xt_tcpudp xt_mark usbhid hid_apple
xt_multiport ipt_MASQUERADE btusb uvcvideo bluetooth iptable_mangle videodev
v4l2_compat_ioctl32 bcm
5974 iptable_nat nf_nat snd_hda_codec_cirrus nf_conntrack_ipv4 nf_conntrack
nf_defrag_ipv4 binfmt_misc ip_tables x_tables joydev snd_hda_intel
nls_iso8859_1 arc4 snd_hda_codec snd_
hwdep nls_cp437 vfat fat b43 snd_pcm mac80211 cfg80211 ssb pcmcia snd_seq_midi
pcmcia_core snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd
bcma soundcore mei(C)
snd_page_alloc apple_bl applesmc input_polldev coretemp hid i915 firewire_ohci
ahci libahci firewire_core drm_kms_helper crc_itu_t drm tg3 i2c_algo_bit video
[last unloaded: usbhi
d]
Dec 13 10:08:53 xs kernel: [52802.812751]
Dec 13 10:08:53 xs kernel: [52802.812774] Pid: 1503, comm: Xorg Tainted: P
C 3.0.0-14-generic #23 Apple Inc. MacBookPro8,3/Mac-942459F5819B171B
Dec 13 10:08:53 xs kernel: [52802.812895] RIP: 0010:[<ffffffffa00db29b>]
[<ffffffffa00db29b>] i915_gem_object_unpin+0xab/0xb0 [i915]
Dec 13 10:08:53 xs kernel: [52802.813028] RSP: 0018:ffff880261857bb8 EFLAGS:
00010246
Dec 13 10:08:53 xs kernel: [52802.813085] RAX: ffff88025d6fd000 RBX:
ffff88025d6fd800 RCX: ffff88025cf15688
Dec 13 10:08:53 xs kernel: [52802.813160] RDX: 000000000002045f RSI:
ffff88025c45a000 RDI: ffff88022bcad600
Dec 13 10:08:53 xs kernel: [52802.813234] RBP: ffff880261857bb8 R08:
ffff88025d6fd438 R09: 0000000000000004
Dec 13 10:08:53 xs kernel: [52802.813308] R10: 0000000000000000 R11:
0000000000000003 R12: ffff88025d6fd020
Dec 13 10:08:53 xs kernel: [52802.813381] R13: ffff88025d6fd450 R14:
0000000000000000 R15: ffff880113109800
Dec 13 10:08:53 xs kernel: [52802.813457] FS: 00007ffc59be48a0(0000)
GS:ffff88026fbc0000(0000) knlGS:0000000000000000
Dec 13 10:08:53 xs kernel: [52802.813541] CS: 0010 DS: 0000 ES: 0000 CR0:
0000000080050033
Dec 13 10:08:53 xs kernel: [52802.813601] CR2: 00000000cd357000 CR3:
000000025fcb3000 CR4: 00000000000406e0
Dec 13 10:08:53 xs kernel: [52802.813676] DR0: 0000000000000000 DR1:
0000000000000000 DR2: 0000000000000000
Dec 13 10:08:53 xs kernel: [52802.813750] DR3: 0000000000000000 DR6:
00000000ffff0ff0 DR7: 0000000000000400
Dec 13 10:08:53 xs kernel: [52802.813837] Process Xorg (pid: 1503, threadinfo
ffff880261856000, task ffff88025c42c560)
Dec 13 10:08:53 xs kernel: [52802.813945] Stack:
Dec 13 10:08:53 xs kernel: [52802.813969] ffff880261857bd8 ffffffffa00e3a29
ffff88025d6fd800 ffffffffa012d2a0
Dec 13 10:08:53 xs kernel: [52802.814054] ffff880261857c08 ffffffffa00ac865
0000000000000001 ffff88025d6fd800
Dec 13 10:08:53 xs kernel: [52802.814148] ffff880261857cd8 ffff88025d6fd420
ffff880261857cc8 ffffffffa00ae0d8
Dec 13 10:08:53 xs kernel: [52802.814234] Call Trace:
Dec 13 10:08:53 xs kernel: [52802.814295] [<ffffffffa00e3a29>]
intel_crtc_disable+0x49/0x60 [i915]
Dec 13 10:08:53 xs kernel: [52802.818593] [<ffffffffa00ac865>]
drm_helper_disable_unused_functions+0x115/0x190 [drm_kms_helper]
Dec 13 10:08:53 xs kernel: [52802.823630] [<ffffffffa00ae0d8>]
drm_crtc_helper_set_config+0x8d8/0x9e0 [drm_kms_helper]
Dec 13 10:08:53 xs kernel: [52802.828860] [<ffffffffa0022cde>]
drm_framebuffer_cleanup+0xce/0x100 [drm]
Dec 13 10:08:53 xs kernel: [52802.834004] [<ffffffffa00e4af1>]
intel_user_framebuffer_destroy+0x21/0x70 [i915]
Dec 13 10:08:53 xs kernel: [52802.839108] [<ffffffffa002591b>]
drm_mode_rmfb+0xcb/0x120 [drm]
Dec 13 10:08:53 xs kernel: [52802.844191] [<ffffffffa0016574>]
drm_ioctl+0x3e4/0x4c0 [drm]
Dec 13 10:08:53 xs kernel: [52802.849270] [<ffffffffa0025850>] ?
drm_mode_addfb+0x180/0x180 [drm]
Dec 13 10:08:53 xs kernel: [52802.854392] [<ffffffff811a2d62>] ?
fsnotify+0x1c2/0x2a0
Dec 13 10:08:53 xs kernel: [52802.859625] [<ffffffff8117a18a>]
do_vfs_ioctl+0x8a/0x340
Dec 13 10:08:53 xs kernel: [52802.864733] [<ffffffff81168510>] ?
vfs_write+0x110/0x180
Dec 13 10:08:53 xs kernel: [52802.869775] [<ffffffff8117a4d1>]
sys_ioctl+0x91/0xa0
Dec 13 10:08:53 xs kernel: [52802.874838] [<ffffffff815f3d02>]
system_call_fastpath+0x16/0x1b
Dec 13 10:08:53 xs kernel: [52802.879853] Code: 00 48 89 96 68 16 00 00 48 81
c6 60 16 00 00 48 89 b7 b0 00 00 00 48 89 87 b8 00 00 00 48 89 10 80 a7 e2 00
00 00 f7 5d c3 0f 0b <0f> 0b 0f 1f 00 55 48 89 e5 48 83 ec 50 48 89 5d d8 4c 89
65 e0
Dec 13 10:08:53 xs kernel: [52802.885319] RIP [<ffffffffa00db29b>]
i915_gem_object_unpin+0xab/0xb0 [i915]
Dec 13 10:08:53 xs kernel: [52802.890790] RSP <ffff880261857bb8>
Dec 13 10:09:48 xs kernel: [52862.776552] INFO: rcu_sched_state detected stalls
on CPUs/tasks: { 7} (detected by 0, t=15002 jiffies)
Dec 13 10:09:53 xs kernel: [52867.743783] INFO: rcu_bh_state detected stalls on
CPUs/tasks: { 7} (detected by 0, t=15002 jiffies)
Dec 13 10:12:49 xs kernel: [53042.731811] INFO: rcu_sched_state detected stalls
on CPUs/tasks: { 7} (detected by 1, t=60034 jiffies)
Dec 13 10:12:54 xs kernel: [53047.699042] INFO: rcu_bh_state detected stalls on
CPUs/tasks: { 7} (detected by 4, t=60034 jiffies)
Dec 13 10:14:56 xs kernel: imklog 5.8.1, log source = /proc/kmsg started.
....
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https://bugs.launchpad.net/bugs/853525
Title:
kernel BUG at
/build/buildd/linux-3.0.0/drivers/gpu/drm/i915/i915_gem.c:3336!
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