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For last 2-3 weeks I experience random freezes (in gnome3) i.e., after a random period of time, the screen freezes and mouse/keyboard not responding, have to manually turn it off by holding the power button.
This doesn't happen if I boot with the LTS kernel.
some warnings from systemd's journal just before the freeze.
ar 08 19:06:28 arch kernel: nouveau E[ VBIOS][0000:01:00.0] 0x6331[0]: script needs connector type
Mar 08 19:06:28 arch kernel: snd_hda_intel 0000:01:00.1: Enabling via VGA-switcheroo
Mar 08 19:06:44 arch kernel: snd_hda_intel 0000:01:00.1: Disabling via VGA-switcheroo
Mar 08 19:06:44 arch kernel: snd_hda_intel 0000:01:00.1: Cannot lock devices!
Mar 08 19:06:44 arch kernel: ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140926/nsarguments-95)
Mar 08 19:06:44 arch kernel: ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM
Mar 08 19:06:44 arch kernel: ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type mismatch - Found [Buffer], ACPI requires [Package] (20140926/nsarguments-95)
Mar 08 19:06:46 arch kernel: nouveau E[ VBIOS][0000:01:00.0] 0x6331[0]: script needs connector type
Mar 08 19:06:46 arch kernel: snd_hda_intel 0000:01:00.1: Enabling via VGA-switcheroo
Mar 08 19:10:05 arch kernel: INFO: task Xorg:339 blocked for more than 120 seconds.
Mar 08 19:10:05 arch kernel: Not tainted 3.18.6-1-ARCH #1
Mar 08 19:10:05 arch kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Mar 08 19:10:05 arch kernel: Xorg D 0000000000000000 0 339 334 0x00400004
Mar 08 19:10:05 arch kernel: ffff8800936d3d98 0000000000000082 ffff880252630000 0000000000013640
Mar 08 19:10:05 arch kernel: ffff8800936d3fd8 0000000000013640 ffffffff81818540 ffff880252630000
Mar 08 19:10:05 arch kernel: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
Mar 08 19:10:05 arch kernel: Call Trace:Offline
Could you post the what was updated last from your pacman.log file?
I'm fairly incompetent, so I may be completely wrong, but my two cents is that there is some kind of issue with your graphics drivers? Are you using a laptop with Optimus? it looks like you have both Intel and the open source nVidia drivers running and one of them isn't happy.
Last edited by nstgc (2015-03-09 18:16:06)
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It looks like you've got a a kernel deadlock.
You need to find what processes are locked. The best way would be using serial console + sysrq, but modern desktop computers usually do not have serial port. Try to invoke sysrq key using keyboard hoping that it will print data to the terminal. It might work https://www.kernel.org/doc/Documentation/sysrq.txt You need 'w' key (print all blocked tasks).
Read it before posting http://www.catb.org/esr/faqs/smart-questions.html
Ruby gems repository done right https://bbs.archlinux.org/viewtopic.php?id=182729
Fast initramfs generator with security in mind https://wiki.archlinux.org/index.php/Booster
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