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[Launchpad Bug Tracker <1295483@xxxxxxxxxxxxxxxxxx>]

[Expired for linux (Ubuntu) because there has been no activity for 60
days.]

** Changed in: linux (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1295483

Title:
  [i915] kernel BUG at /build/buildd/linux-3.13.0/lib/swiotlb.c:456!

Status in “linux” package in Ubuntu:
  Expired

Bug description:
  It looks like Chrome's GPU acceleration is very infrequently capable
  of taking down the kernel; I've been running it for a number of weeks
  and only just hit this BUG:

  Mar 21 14:17:49 RedTail kernel: [58101.987805] ------------[ cut here ]------------
  Mar 21 14:17:49 RedTail kernel: [58101.987823] kernel BUG at /build/buildd/linux-3.13.0/lib/swiotlb.c:456!
  Mar 21 14:17:49 RedTail kernel: [58101.987840] invalid opcode: 0000 [#1] SMP 
  Mar 21 14:17:49 RedTail kernel: [58101.987852] Modules linked in: hid_magicmouse hidp hid ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs ctr ccm xt_conntrack ipt_REJECT overlayfs ip6table_filter ip6_tables ebtable_
  nat ebtables xt_CHECKSUM iptable_mangle ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack xt_tcpudp bridge stp llc iptable_filter ip_tables x_tables lttng_probe_writeback 
  lttng_probe_workqueue rfcomm bnep lttng_probe_vmscan lttng_probe_udp lttng_probe_timer lttng_probe_sunrpc lttng_probe_statedump lttng_probe_sock lttng_probe_skb lttng_probe_signal lttng_probe_scsi lttng_probe_sche
  d lttng_probe_rpm lttng_probe_regulator lttng_probe_regmap lttng_probe_rcu lttng_probe_random lttng_probe_printk lttng_probe_power lttng_probe_net lttng_probe_napi lttng_probe_module lttng_probe_kvm_x86_mmu lttng_
  probe_kvm_x86 lttng_probe_kvm lttng_probe_kmem lttng_probe_jbd2 lttng_probe_irq lttng_probe_gpio lttng_probe_ext4 lttng_probe_compaction lttng_probe_btrfs lttng_probe_block lttng_probe_asoc lttng_types lttng_ring_
  buffer_metadata_mmap_client lttng_ring_buffer_client_mmap_overwrite lttng_ring_buffer_client_mmap_discard lttng_ring_buffer_metadata_client lttng_ring_buffer_client_overwrite binfmt_misc lttng_ring_buffer_client_d
  iscard lttng_tracer lttng_statedump lttng_ftrace lttng_kprobes lttng_lib_ring_buffer lttng_kretprobes joydev nls_iso8859_1 x86_pkg_temp_thermal intel_powerclamp coretemp arc4 kvm_intel kvm ath9k ath9k_common psmou
  se ath9k_hw serio_raw snd_hda_codec_via ath snd_hda_codec_hdmi snd_hda_intel mac80211 uvcvideo videobuf2_vmalloc snd_hda_codec videobuf2_memops videobuf2_core lpc_ich snd_hwdep snd_pcm videodev cfg80211 rtsx_pci_m
  s memstick dm_multipath scsi_dh ath3k btusb snd_page_alloc bluetooth mei_me snd_seq_midi snd_seq_midi_event mei snd_rawmidi snd_seq snd_seq_device snd_timer snd mac_hid soundcore lp parport btrfs xor raid6_pq libc
  rc32c dm_crypt rtsx_pci_sdmmc i915 crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd i2c_algo_bit drm_kms_helper ahci e1000e libahci drm rtsx_pci 
  ptp pps_core wmi video
  Mar 21 14:17:49 RedTail kernel: [58101.988405] CPU: 7 PID: 19627 Comm: chrome Not tainted 3.13.0-18-generic #38-Ubuntu
  Mar 21 14:17:49 RedTail kernel: [58101.988424] Hardware name: System76, Inc. Galago UltraPro/Galago UltraPro, BIOS 4.6.5 07/09/2013
  Mar 21 14:17:49 RedTail kernel: [58101.988456] task: ffff88003e62c7d0 ti: ffff8802d47c6000 task.ti: ffff8802d47c6000
  Mar 21 14:17:49 RedTail kernel: [58101.988476] RIP: 0010:[<ffffffff8137dc2d>]  [<ffffffff8137dc2d>] swiotlb_tbl_map_single+0x28d/0x2a0
  Mar 21 14:17:49 RedTail kernel: [58101.988503] RSP: 0018:ffff8802d47c7a70  EFLAGS: 00010246
  Mar 21 14:17:49 RedTail kernel: [58101.988517] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
  Mar 21 14:17:49 RedTail kernel: [58101.988535] RDX: 0005800000000000 RSI: 00000000d4abd000 RDI: 0000000000000000
  Mar 21 14:17:49 RedTail kernel: [58101.988553] RBP: ffff8802d47c7ad0 R08: 0000000000000000 R09: ffff880402f726d0
  Mar 21 14:17:49 RedTail kernel: [58101.988571] R10: 000000001ea06000 R11: 0000000000000062 R12: ffff880409239098
  Mar 21 14:17:49 RedTail kernel: [58101.988589] R13: 0000000000000001 R14: 0000160000000000 R15: 0000000000200000
  Mar 21 14:17:49 RedTail kernel: [58101.988607] FS:  00007fa8d07d5a00(0000) GS:ffff88041fbc0000(0000) knlGS:0000000000000000
  Mar 21 14:17:49 RedTail kernel: [58101.988627] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  Mar 21 14:17:49 RedTail kernel: [58101.988642] CR2: 00002f6213eea004 CR3: 0000000362cb9000 CR4: 00000000001407e0
  Mar 21 14:17:49 RedTail kernel: [58101.988660] Stack:
  Mar 21 14:17:49 RedTail kernel: [58101.988667]  000000001fa944c0 0005800000000000 ffff88039dff9e40 0000000000000000
  Mar 21 14:17:49 RedTail kernel: [58101.988691]  ffff880409239098 0000000000000000 00000000001a957a 0000000000000000
  Mar 21 14:17:49 RedTail kernel: [58101.988723]  ffff880409239098 0000000000000040 0000160000000000 ffff88021bf3f800
  Mar 21 14:17:49 RedTail kernel: [58101.988759] Call Trace:
  Mar 21 14:17:49 RedTail kernel: [58101.988777]  [<ffffffff8137e5ca>] swiotlb_map_sg_attrs+0xba/0x150
  Mar 21 14:17:49 RedTail kernel: [58101.988820]  [<ffffffffa0186db2>] i915_gem_gtt_prepare_object+0x82/0xb0 [i915]
  Mar 21 14:17:49 RedTail kernel: [58101.988854]  [<ffffffffa017ee5a>] i915_gem_object_pin+0x47a/0x720 [i915]
  Mar 21 14:17:49 RedTail kernel: [58101.988880]  [<ffffffffa01829ac>] i915_gem_execbuffer_reserve_vma.isra.12+0x6c/0x1e0 [i915]
  Mar 21 14:17:49 RedTail kernel: [58101.988909]  [<ffffffffa0182df0>] i915_gem_execbuffer_reserve+0x2d0/0x2f0 [i915]
  Mar 21 14:17:49 RedTail kernel: [58101.988935]  [<ffffffffa0183cfd>] i915_gem_do_execbuffer.isra.22+0x4cd/0xff0 [i915]
  Mar 21 14:17:49 RedTail kernel: [58101.988958]  [<ffffffff811564ee>] ? __alloc_pages_nodemask+0x14e/0x290
  Mar 21 14:17:49 RedTail kernel: [58101.988982]  [<ffffffffa0184cb1>] ? i915_gem_execbuffer2+0x51/0x280 [i915]
  Mar 21 14:17:49 RedTail kernel: [58101.989008]  [<ffffffffa0184cfd>] i915_gem_execbuffer2+0x9d/0x280 [i915]
  Mar 21 14:17:49 RedTail kernel: [58101.989036]  [<ffffffffa003cc22>] drm_ioctl+0x502/0x630 [drm]
  Mar 21 14:17:49 RedTail kernel: [58101.989056]  [<ffffffff8162a4c5>] ? sk_run_filter+0x295/0x700
  Mar 21 14:17:49 RedTail kernel: [58101.989074]  [<ffffffff811cba30>] do_vfs_ioctl+0x2e0/0x4c0
  Mar 21 14:17:49 RedTail kernel: [58101.989091]  [<ffffffff8110c683>] ? __secure_computing+0x73/0x260
  Mar 21 14:17:49 RedTail kernel: [58101.989108]  [<ffffffff811cbc91>] SyS_ioctl+0x81/0xa0
  Mar 21 14:17:49 RedTail kernel: [58101.989123]  [<ffffffff81721c7f>] tracesys+0xe1/0xe6
  Mar 21 14:17:49 RedTail kernel: [58101.989136] Code: 48 c7 c7 d4 9e fb 81 e8 82 b2 39 00 eb 8c 89 f6 41 bf 00 00 20 00 48 8d 86 ff 07 00 00 48 89 45 d0 48 c1 6d d0 0b e9 e7 fd ff ff <0f> 0b 48 c7 c7 00 b0 a8 81 31
   c0 e8 50 be 38 00 0f 1f 00 55 48 
  Mar 21 14:17:49 RedTail kernel: [58101.989217] RIP  [<ffffffff8137dc2d>] swiotlb_tbl_map_single+0x28d/0x2a0
  Mar 21 14:17:49 RedTail kernel: [58101.989235]  RSP <ffff8802d47c7a70>
  Mar 21 14:17:49 RedTail kernel: [58101.997847] ---[ end trace aa4c53b4f17bc057 ]---
  --- 
  ApportVersion: 2.13.3-0ubuntu1
  Architecture: amd64
  CurrentDesktop: Unity
  DistroRelease: Ubuntu 14.04
  InstallationDate: Installed on 2013-08-06 (226 days ago)
  InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
  Package: linux (not installed)
  Tags:  trusty
  Uname: Linux 3.14.0-031400rc7-generic x86_64
  UnreportableReason: The running kernel is not an Ubuntu kernel
  UpgradeStatus: Upgraded to trusty on 2013-08-06 (226 days ago)
  UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sbuild sudo
  _MarkForUpload: True

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