http://bugzilla.kernel.org/show_bug.cgi?id=13039
--- Comment #2 from Sami Liedes <[email protected]> 2009-04-08 03:38:22 --- I do not know if this is the same bug or a different one, but since the operating environment and symptoms are pretty much same, by best guess is it's the same issue. The backtrace is slightly different though. Tell me if you wish me to report a new bug. This lockup seems to happen sometimes after using KDE for a while, having switched to a text console with ctrl-alt-F1 and then back to X. Just like the reproducible lockup in my previous comments, the X screen is restored correctly when switching back to X (in the previous cases that amounts to showing the mouse pointer) and the mouse pointer moves, but a hard lockup occurs in less than maybe 2 seconds (judging from the mouse pointer no longer moving). This too is from netconsole, which uses UDP, and I wonder if something is cut out after the Modules linked in: line (note the missing newline after that line). Maybe it's just a cut line if netconsole does one UDP packet per line. I guess I'll try and compile a kernel with that printk() commented out to be more sure about this. Unlike the previous backtraces, the process is not Xorg but setxkbmap. ------------------------------------------------------------ [ 247.380201] console [netcon0] enabled [ 247.380442] netconsole: network logging started [ 265.012862] [drm] Initialized drm 1.1.0 20060810 [ 265.048327] pci 0000:00:02.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16 [ 265.074306] [drm] Initialized i915 1.6.0 20080730 on minor 0 [ 284.607814] nepomukservices[6707]: segfault at 78 ip 00007f5d48ee755e sp 00007fff514d6690 error 4 in libQtCore.so.4.4.3[7f5d48e7e000+230000] [ 369.857838] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 1356.490484] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 1373.529130] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 3110.287244] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 3121.921768] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 3125.121969] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 3128.827253] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 3135.647005] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 3154.698136] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 4083.234335] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 4180.192228] [drm:i915_get_vblank_counter] *ERROR* trying to get vblank count for disabled pipe 0 [ 4182.833661] general protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC [ 4182.833710] last sysfs file: /sys/devices/virtual/backlight/acpi_video0/brightness [ 4182.833721] CPU 0 [ 4182.833737] Modules linked in: i915 drm i2c_algo_bit cfbcopyarea cfbimgblt cfbfillrect netconsole xt_limit xt_tcpudp ipt_LOG ipt_MASQUERADE ipt_REJECT nf_conntrack_irc nf_conntrack_ftp xt_state ppdev parport_pc lp parport rfcomm l2cap binfmt_misc cpufreq_conservative cpufreq_ondemand cpufreq_userspace cpufreq_powersave microcode cpufreq_stats freq_table af_packet iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_mangle iptable_filter ip_tables x_tables snd_pcm_oss [<ffffffff80648fcd>] ? trace_hardirqs_off_thunk+0x3a/0x3c [ 4182.834016] [<ffffffff8064a28f>] page_fault+0x1f/0x30 [ 4182.834016] Code: 0f 84 af fd [ 4182.836906] BUG: scheduling while atomic: setxkbmap/25291/0x10000002 [ 4182.836919] INFO: lockdep is turned off. [ 4182.836927] Modules linked in: i915 drm i2c_algo_bit cfbcopyarea cfbimgblt cfbfillrect netconsole xt_limit xt_tcpudp ipt_LOG ipt_MASQUERADE ipt_REJECT nf_conntrack_irc nf_conntrack_ftp xt_state ppdev parport_pc lp parport rfcomm l2cap binfmt_misc cpufreq_conservative cpufreq_ondemand cpufreq_userspace cpufreq_powersave microcode cpufreq_stats freq_table af_packet iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_mangle iptable_filter ip_tables x_tables fuse coretemp hwmon joydev snd_hda_codec_analog snd_hda_intel snd_hda_codec snd_pcm_oss snd_mixer_oss bluetooth snd_seq_midi_event iwl3945 snd_seq rfkill snd_timer mac80211 led_class lib80211 cfg80211 snd[ 4182.838426] [<ffffffff802e46e0>] __do_fault+0x210/0x4e0 [ 4182.838437] [<ffffffff802e6be4>] handle_mm_fault+0x1e4/0x850 -- Configure bugmail: http://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. 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