This happened to me last night on Precise, 3.2.0-31-generic amd64. This isn't consistently reproducible, but I recall the same symptoms happening a few times over the last few months (I don't have logs from those hangs, sorry).
Oct 10 02:10:54 uk kernel: [875851.869738] WARNING: at /build/buildd/linux-3.2.0/drivers/gpu/drm/i915/i915_drv.c:417 __gen6_gt_wait_for_fifo+0x94/0xa0 [i915]() Oct 10 02:10:54 uk kernel: [875851.869744] Hardware name: 4286CTO Oct 10 02:10:54 uk kernel: [875851.869747] Modules linked in: usblp usb_storage ipt_REDIRECT xt_hl btrfs zlib_deflate libcrc32c ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs reiserfs nls_iso8859_1 nls_cp437 vfat fat mmc_block pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) ip6table_filter ip6_tables ebtable_nat ebtables xt_state ipt_REJECT xt_CHECKSUM ipt_MASQUERADE iptable_nat nf_nat iptable_mangle nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 xt_tcpudp iptable_filter ip_tables x_tables bridge stp nfsd nfs parport_pc bnep ppdev rfcomm binfmt_misc lockd fscache auth_rpcgss nfs_acl sunrpc ext2 snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec snd_hwdep btusb arc4 bluetooth snd_pcm i915 drm_kms_helper drm snd_seq_midi iwlwifi i2c_algo_bit snd_rawmidi snd_seq_midi_event tpm_tis snd_seq snd_timer joydev thinkpad_acpi lp uvcvideo nvram wmi snd_seq_device video videodev v4l2_compat_ioctl32 mac_hid snd mei(C) psmouse parport serio_raw soundcore mac80211 snd_page_alloc cfg80211 sdhci_p Oct 10 02:10:54 uk kernel: ci sdhci e1000e Oct 10 02:10:54 uk kernel: [875851.869885] Pid: 1449, comm: Xorg Tainted: G WC O 3.2.0-31-generic #50-Ubuntu Oct 10 02:10:54 uk kernel: [875851.869890] Call Trace: Oct 10 02:10:54 uk kernel: [875851.869901] [<ffffffff81066d7f>] warn_slowpath_common+0x7f/0xc0 Oct 10 02:10:54 uk kernel: [875851.869909] [<ffffffff81066dda>] warn_slowpath_null+0x1a/0x20 Oct 10 02:10:54 uk kernel: [875851.869930] [<ffffffffa02a6a04>] __gen6_gt_wait_for_fifo+0x94/0xa0 [i915] Oct 10 02:10:54 uk kernel: [875851.869952] [<ffffffffa02a70a1>] i915_write32+0xe1/0xf0 [i915] Oct 10 02:10:54 uk kernel: [875851.869984] [<ffffffffa02e42f2>] gen6_ring_get_irq+0xb2/0xd0 [i915] Oct 10 02:10:54 uk kernel: [875851.870014] [<ffffffffa02e4328>] blt_ring_get_irq+0x18/0x20 [i915] Oct 10 02:10:54 uk kernel: [875851.870039] [<ffffffffa02b8f13>] i915_wait_request+0x183/0x560 [i915] Oct 10 02:10:54 uk kernel: [875851.870068] [<ffffffffa02e39a1>] ? ring_write_tail+0x21/0x30 [i915] Oct 10 02:10:54 uk kernel: [875851.870095] [<ffffffffa02e6166>] ? gen6_render_ring_flush+0xd6/0xf0 [i915] Oct 10 02:10:54 uk kernel: [875851.870121] [<ffffffffa02b9322>] i915_gem_object_wait_rendering+0x32/0x40 [i915] Oct 10 02:10:54 uk kernel: [875851.870147] [<ffffffffa02be12d>] i915_gem_execbuffer_sync_rings+0xdd/0x160 [i915] Oct 10 02:10:54 uk kernel: [875851.870173] [<ffffffffa02be31e>] i915_gem_execbuffer_move_to_gpu+0x16e/0x200 [i915] Oct 10 02:10:54 uk kernel: [875851.870200] [<ffffffffa02bea18>] i915_gem_do_execbuffer.isra.7+0x668/0x9a0 [i915] Oct 10 02:10:54 uk kernel: [875851.870210] [<ffffffff8108ec1b>] ? __hrtimer_start_range_ns+0x16b/0x3a0 Oct 10 02:10:54 uk kernel: [875851.870235] [<ffffffffa02bf219>] i915_gem_execbuffer2+0xa9/0x270 [i915] Oct 10 02:10:54 uk kernel: [875851.870259] [<ffffffffa026d5d4>] drm_ioctl+0x444/0x510 [drm] Oct 10 02:10:54 uk kernel: [875851.870286] [<ffffffffa02bf170>] ? i915_gem_execbuffer+0x420/0x420 [i915] Oct 10 02:10:54 uk kernel: [875851.870295] [<ffffffff8101dbe4>] ? restore_user_xstate+0x54/0xa0 Oct 10 02:10:54 uk kernel: [875851.870304] [<ffffffff8118a02a>] do_vfs_ioctl+0x8a/0x340 Oct 10 02:10:54 uk kernel: [875851.870312] [<ffffffff8118a371>] sys_ioctl+0x91/0xa0 Oct 10 02:10:54 uk kernel: [875851.870319] [<ffffffff81662b02>] system_call_fastpath+0x16/0x1b Oct 10 02:10:54 uk kernel: [875851.870324] ---[ end trace e4082eaac73759ec ]--- -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/968520 Title: i915 GPU hang with WARNING: at /build/buildd/linux-3.2.0/drivers/gpu/drm/i915/i915_drv.c:413 __gen6_gt_wait_for_fifo+0x94/0xa0 [i915]() To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/968520/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
