A following crash was gotten in CI when running autopilot tests:
/var/local/autopilot/autopilot.log: 06:25:06.559 DEBUG globals:155 - Starting: ['/usr/bin/recordmydesktop', '--fps=6', '--no-wm-check', '--no-sound', '--no-frame', '-o', '/var/local/autopilot//videos/autopilot.tests.functional.test_input_stack.TouchGesturesTests.test_pinch_gesture.ogv']
/var/local/autopilot/autopilot.log: 06:25:06.569 INFO __init__:162 - Launching process: ['/usr/bin/qmlscene', '-qt=qt5', '-testability', '/tmp/tmpyErdkz.qml']
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22506.717922] kernel BUG at /build/buildd/linux-3.12.0/drivers/gpu/drm/i915/i915_gem.c:4839!
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22506.736780] Modules linked in: bluetooth veth squashfs aufs nls_utf8 isofs xt_CHECKSUM xt_tcpudp iptable_mangle ipt_MASQUERADE iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack bridge stp llc iptable_filter ip_tables x_tables x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crc32_pclmul aesni_intel aes_i586 xts lrw snd_hda_codec_hdmi gf128mul snd_hda_codec_realtek ablk_helper cryptd i915 drm_kms_helper snd_hda_intel snd_hda_codec drm snd_hwdep snd_pcm snd_page_alloc i2c_algo_bit mxm_wmi mei_me snd_timer snd mei soundcore psmouse serio_raw joydev lpc_ich microcode wmi mac_hid video lp parport hid_generic usbhid hid e1000e ahci ptp libahci pps_core
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22506.822345] Hardware name: /DZ77BH-55K, BIOS BHZ7710H.86A.0097.2012.1228.1346 12/28/2012
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22506.851440] EIP: 0060:[<f901d776>] EFLAGS: 00210246 CPU: 2
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22506.880754] EAX: e6b90270 EBX: e6b90270 ECX: ed4b4000 EDX: ed4b55e0
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22506.910940] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22506.941836] Stack:
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22506.973256] e8921c00 00000000 00000000 00000000 000000b4 000000c0 e6b90294 00000000
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22507.005758] Call Trace:
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22507.037812] [<c130a8ec>] ? _copy_from_user+0x2c/0x40
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22507.070637] [<f9024990>] ? i915_gem_execbuffer+0x560/0x560 [i915]
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22507.104147] [<f9024990>] ? i915_gem_execbuffer+0x560/0x560 [i915]
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22507.137652] [<f8e2c430>] ? drm_copy_field+0x70/0x70 [drm]
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22507.171153] [<c16561af>] ? __do_page_fault+0x24f/0x530
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22507.204938] [<c11826c0>] SyS_ioctl+0x60/0x80
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22507.238719] Code: 39 50 f4 8d 48 cc 75 0a eb 1b 8d 76 00 39 50 f4 74 13 8b 41 34 39 c3 8d 48 cc 75 f1 b8 ff ff ff ff 5b 5d c3 90 8b 41 18 5b 5d c3 <0f> 0b 90 8d b4 26 00 00 00 00 55 89 e5 56 53 3e 8d 74 26 00 8b
/var/log/syslog: Dec 16 06:25:07 trusty-i386-20131216-0008 kernel: [22507.367196] ---[ end trace d36900663c323dfa ]---
/var/local/autopilot/autopilot.log: 06:25:33.001 ERROR proxies:410 - Introspect error on :1.180:/com/canonical/Autopilot/Introspection: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
/var/local/autopilot/autopilot.log: 06:25:33.001 DEBUG proxies:413 - Executing introspect queue due to error
/home/ubuntu/.cache/upstart/gnome-session.log: WARN 2013-12-16 06:25:32 unity <unknown>:0 Failed to fetch xid: Timeout was reached
/home/ubuntu/.cache/upstart/gnome-session.log: WARN 2013-12-16 06:25:33 unity <unknown>:0 Failed to fetch type: Timeout was reached
/home/ubuntu/.cache/upstart/gnome-session.log: WARN 2013-12-16 06:25:33 unity <unknown>:0 Failed to fetch monitor: Timeout was reached
/home/ubuntu/.cache/upstart/gnome-session.log: WARN 2013-12-16 06:25:34 unity <unknown>:0 Failed to fetch maximized state: Timeout was reached
/home/ubuntu/.cache/upstart/gnome-session.log: WARN 2013-12-16 06:25:34 unity <unknown>:0 Failed to fetch xid: Timeout was reached
The machine in question - qa-intel-4000 - is experiencing this crasher a lot, with both current kernel (3.12.0-7-generic) and the previous update (3.12.0-5-generic).
An URL to full log with 3.12.0-7-generic: http://q-jenkins.ubuntu-ci:8080/job/autopilot-trusty-daily_release/936/label=qa-intel-4000/consoleText and to 3.12.0-5-generic http://q-jenkins.ubuntu-ci:8080/job/autopilot-trusty-daily_release/label=qa-intel-4000/948/console
This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:
apport-collect 1261308
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.