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[astro <1402714@xxxxxxxxxxxxxxxxxx>]

** Tags removed: verification-needed-trusty
** Tags added: verification-done-trusty

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https://bugs.launchpad.net/bugs/1402714

Title:
  Radeon driver crash with linux-kernel-3.13.0-43

Status in linux package in Ubuntu:
  Fix Released
Status in linux source package in Trusty:
  Fix Committed

Bug description:
  SRU Justification:
  [Impact]
  Users of Radeon drivers with some hardware experience crashes on boot.

  [Test Case]
  Boot machine with Radeon driver and affected card, ensure it doesn't crash.

  [Fix]
  commit 83d04c39f9048807a8500e575ae3f1718a3f45bb upstream
  in v3.18-rc2+

  --

  There is syslog cut:
  Dec 14 10:45:14 mediacenter kernel: [ 17.365515] ------------[ cut here ]------------
  Dec 14 10:45:14 mediacenter kernel: [ 17.365590] kernel BUG at /build/buildd/linux-3.13.0/mm/slub.c:3365!
  Dec 14 10:45:14 mediacenter kernel: [ 17.365670] invalid opcode: 0000 [#1] SMP
  Dec 14 10:45:14 mediacenter kernel: [ 17.365727] Modules linked in: ctr ccm snd_hda_codec_realtek arc4 snd_hda_codec_hdmi snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_page_alloc snd_seq_midi rt2800usb snd_seq_midi_event rt2x00usb snd_rawmidi rt2800lib rt2x00lib snd_seq mac80211 snd_seq_device kvm_amd snd_timer sp5100_tco cfg80211 kvm i2c_piix4 crc_ccitt serio_raw joydev snd w83627ehf hwmon_vid soundcore lp mac_hid parport hid_generic usbhid hid radeon ahci r8169 psmouse i2c_algo_bit mii ttm libahci drm_kms_helper drm
  Dec 14 10:45:14 mediacenter kernel: [ 17.366337] CPU: 1 PID: 1301 Comm: Xorg Not tainted 3.13.0-43-generic #72-Ubuntu
  Dec 14 10:45:14 mediacenter kernel: [ 17.366427] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./E350M1/USB3, BIOS P1.60 05/21/2012
  Dec 14 10:45:14 mediacenter kernel: [ 17.366542] task: ec1e2700 ti: ec112000 task.ti: ec112000
  Dec 14 10:45:14 mediacenter kernel: [ 17.366608] EIP: 0060:[<c1164a61>] EFLAGS: 00213246 CPU: 1
  Dec 14 10:45:14 mediacenter kernel: [ 17.366683] EIP is at kfree+0x101/0x110
  Dec 14 10:45:14 mediacenter kernel: [ 17.366730] EAX: 80000000 EBX: 00000000 ECX: 00010005 EDX: 80000000
  Dec 14 10:45:14 mediacenter kernel: [ 17.366804] ESI: f76fe480 EDI: f8d24d08 EBP: ec113b88 ESP: ec113b6c
  Dec 14 10:45:14 mediacenter kernel: [ 17.366879] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
  Dec 14 10:45:14 mediacenter kernel: [ 17.366944] CR0: 80050033 CR2: b64b8024 CR3: 35b5d000 CR4: 000007f0
  Dec 14 10:45:14 mediacenter kernel: [ 17.367018] Stack:
  Dec 14 10:45:14 mediacenter kernel: [ 17.367044] 0000004c ec113b88 ec113be4 00024414 00000000 f48f2000 f6137400 ec113c4c
  Dec 14 10:45:14 mediacenter kernel: [ 17.367151] f8d24d08 00000000 f60bc656 0000c736 00000000 00aac9a0 0000712c 00007048
  Dec 14 10:45:14 mediacenter kernel: [ 17.367257] 00007044 00000000 00000000 ec1d2a80 f48f2000 f6137400 f584c800 ec113be0
  Dec 14 10:45:14 mediacenter kernel: [ 17.367362] Call Trace:
  Dec 14 10:45:14 mediacenter kernel: [ 17.367457] [<f8d24d08>] evergreen_hdmi_setmode+0x738/0x9a0 [radeon]
  Dec 14 10:45:14 mediacenter kernel: [ 17.367565] [<f8a96059>] ? drm_detect_hdmi_monitor+0x69/0xb0 [drm]
  Dec 14 10:45:14 mediacenter kernel: [ 17.367693] [<f8d2ba27>] ? radeon_atom_encoder_dpms+0xa7/0x1d0 [radeon]
  Dec 14 10:45:14 mediacenter kernel: [ 17.367824] [<f8d2503e>] ? evergreen_hdmi_enable+0xce/0xf0 [radeon]
  Dec 14 10:45:14 mediacenter kernel: [ 17.367955] [<f8d2bc99>] radeon_atom_encoder_mode_set+0x149/0x2c0 [radeon]
  Dec 14 10:45:14 mediacenter kernel: [ 17.368046] [<f846ba06>] drm_crtc_helper_set_mode+0x4d6/0x550 [drm_kms_helper]
  Dec 14 10:45:14 mediacenter kernel: [ 17.368179] [<f8cd6974>] radeon_property_change_mode.isra.1+0x34/0x40 [radeon]
  Dec 14 10:45:14 mediacenter kernel: [ 17.368305] [<f8cd6b19>] radeon_connector_set_property+0x199/0x330 [radeon]
  Dec 14 10:45:14 mediacenter kernel: [ 17.368416] [<f8a93539>] drm_mode_obj_set_property_ioctl+0x149/0x3c0 [drm]
  Dec 14 10:45:14 mediacenter kernel: [ 17.368521] [<f8a937b0>] ? drm_mode_obj_set_property_ioctl+0x3c0/0x3c0 [drm]
  Dec 14 10:45:14 mediacenter kernel: [ 17.368628] [<f8a937e3>] drm_mode_connector_property_set_ioctl+0x33/0x40 [drm]
  Dec 14 10:45:14 mediacenter kernel: [ 17.368730] [<f8a84792>] drm_ioctl+0x472/0x500 [drm]
  Dec 14 10:45:14 mediacenter kernel: [ 17.368817] [<f8a937b0>] ? drm_mode_obj_set_property_ioctl+0x3c0/0x3c0 [drm]
  Dec 14 10:45:14 mediacenter kernel: [ 17.368907] [<c114729d>] ? handle_mm_fault+0x34d/0x8d0
  Dec 14 10:45:14 mediacenter kernel: [ 17.368974] [<c141a041>] ? __pm_runtime_resume+0x51/0x70
  Dec 14 10:45:14 mediacenter kernel: [ 17.369069] [<f8c9b0de>] radeon_drm_ioctl+0x3e/0x70 [radeon]
  Dec 14 10:45:14 mediacenter kernel: [ 17.369167] [<f8c9b0a0>] ? radeon_resume+0x50/0x50 [radeon]
  Dec 14 10:45:14 mediacenter kernel: [ 17.369240] [<c118acb2>] do_vfs_ioctl+0x2e2/0x4d0
  Dec 14 10:45:14 mediacenter kernel: [ 17.369303] [<c165fc27>] ? __do_page_fault+0x237/0x510
  Dec 14 10:45:14 mediacenter kernel: [ 17.369368] [<c117beb1>] ? __sb_end_write+0x31/0x70
  Dec 14 10:45:14 mediacenter kernel: [ 17.369432] [<c117a405>] ? vfs_write+0x165/0x1b0
  Dec 14 10:45:14 mediacenter kernel: [ 17.369490] [<c118af00>] SyS_ioctl+0x60/0x80
  Dec 14 10:45:14 mediacenter kernel: [ 17.369545] [<c166398d>] sysenter_do_call+0x12/0x12
  Dec 14 10:45:14 mediacenter kernel: [ 17.369606] Code: 2a 8b 06 31 d2 f6 c4 40 74 03 8b 56 38 89 f0 e8 a6 49 fc ff eb 9a 8b 70 1c 0f ae e8 89 f6 8b 10 80 e6 80 0f 44 f0 e9 3e ff ff ff <0f> 0b 8d b6 00 00 00 00 8d bc 27 00 00 00 00 55 89 e5 57 56 53
  Dec 14 10:45:14 mediacenter kernel: [ 17.369948] EIP: [<c1164a61>] kfree+0x101/0x110 SS:ESP 0068:ec113b6c

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