Spontaneous (?) lock-up on on recent driver on GF 8800 GT

[Quibus]

Recently I have been experiencing spontaneous lock-ups. Suddenly the screen freezes, but the cursor can still be moved. It's not possible to do anything else than the Alt-SysRq commands to trigger a reboot. (I don't have the means to login remotely.)

I often do have 2 X sessions running at the same time ("switch user" in GNOME). I'm running the latest state of affairs of Debian testing, driver is 295.59.

This is what I see in kern.log:

Jun 28 23:43:28 sonata kernel: [18883.350571] NVRM: Xid (0000:01:00): 13, 0006 00000000 00008297 00000f10 44960000 00000040

and this in Xorg.1.log.old (which is of the last lockup):

[ 18885.004] [mi] EQ overflowing.  Additional events will be discarded until existing events are processed.
[ 18885.008] 
[ 18885.008] Backtrace:
[ 18885.102] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7f892565d796]
[ 18885.102] 1: /usr/bin/Xorg (mieqEnqueue+0x26b) [0x7f892563ea5b]
[ 18885.102] 2: /usr/bin/Xorg (0x7f89254df000+0x66a02) [0x7f8925545a02]
[ 18885.102] 3: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f891d5c6000+0x55d8) [0x7f891d5cb5d8]
[ 18885.102] 4: /usr/bin/Xorg (0x7f89254df000+0x8d697) [0x7f892556c697]
[ 18885.102] 5: /usr/bin/Xorg (0x7f89254df000+0xb1898) [0x7f8925590898]
[ 18885.102] 6: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8924807000+0xf030) [0x7f8924816030]
[ 18885.102] 7: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x8f020) [0x7f891e13b020]
[ 18885.102] 8: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x90bd5) [0x7f891e13cbd5]
[ 18885.102] 9: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0xfe18b) [0x7f891e1aa18b]
[ 18885.102] 10: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5358dc) [0x7f891e5e18dc]
[ 18885.102] 11: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x535acf) [0x7f891e5e1acf]
[ 18885.102] 12: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x524c1a) [0x7f891e5d0c1a]
[ 18885.102] 13: /usr/bin/Xorg (0x7f89254df000+0x110749) [0x7f89255ef749]
[ 18885.102] 14: /usr/bin/Xorg (miGlyphs+0x3f4) [0x7f89255deb74]
[ 18885.102] 15: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5258d9) [0x7f891e5d18d9]
[ 18885.102] 16: /usr/bin/Xorg (0x7f89254df000+0x1109dd) [0x7f89255ef9dd]
[ 18885.102] 17: /usr/bin/Xorg (0x7f89254df000+0x109bc6) [0x7f89255e8bc6]
[ 18885.102] 18: /usr/bin/Xorg (0x7f89254df000+0x52e41) [0x7f8925531e41]
[ 18885.102] 19: /usr/bin/Xorg (0x7f89254df000+0x41ed5) [0x7f8925520ed5]
[ 18885.102] 20: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f8923530ead]
[ 18885.102] 21: /usr/bin/Xorg (0x7f89254df000+0x421ad) [0x7f89255211ad]
[ 18885.102] 
[ 18885.102] [mi] These backtraces from mieqEnqueue may point to a culprit higher up the stack.
[ 18885.102] [mi] mieq is *NOT* the cause.  It is a victim.
[ 18887.168] [mi] EQ overflow continuing.  100 events have been dropped.
[ 18887.168] 
[ 18887.168] Backtrace:
[ 18887.168] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7f892565d796]
[ 18887.168] 1: /usr/bin/Xorg (0x7f89254df000+0x66a02) [0x7f8925545a02]
[ 18887.168] 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f891d5c6000+0x55d8) [0x7f891d5cb5d8]
[ 18887.168] 3: /usr/bin/Xorg (0x7f89254df000+0x8d697) [0x7f892556c697]
[ 18887.168] 4: /usr/bin/Xorg (0x7f89254df000+0xb1898) [0x7f8925590898]
[ 18887.168] 5: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8924807000+0xf030) [0x7f8924816030]
[ 18887.168] 6: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x8f01d) [0x7f891e13b01d]
[ 18887.168] 7: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x90bd5) [0x7f891e13cbd5]
[ 18887.168] 8: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0xfe18b) [0x7f891e1aa18b]
[ 18887.168] 9: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5358dc) [0x7f891e5e18dc]
[ 18887.168] 10: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x535acf) [0x7f891e5e1acf]
[ 18887.168] 11: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x524c1a) [0x7f891e5d0c1a]
[ 18887.168] 12: /usr/bin/Xorg (0x7f89254df000+0x110749) [0x7f89255ef749]
[ 18887.168] 13: /usr/bin/Xorg (miGlyphs+0x3f4) [0x7f89255deb74]
[ 18887.168] 14: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5258d9) [0x7f891e5d18d9]
[ 18887.168] 15: /usr/bin/Xorg (0x7f89254df000+0x1109dd) [0x7f89255ef9dd]
[ 18887.168] 16: /usr/bin/Xorg (0x7f89254df000+0x109bc6) [0x7f89255e8bc6]
[ 18887.168] 17: /usr/bin/Xorg (0x7f89254df000+0x52e41) [0x7f8925531e41]
[ 18887.168] 18: /usr/bin/Xorg (0x7f89254df000+0x41ed5) [0x7f8925520ed5]
[ 18887.168] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f8923530ead]
[ 18887.168] 20: /usr/bin/Xorg (0x7f89254df000+0x421ad) [0x7f89255211ad]
[ 18887.168] 
[ 18887.600] [mi] EQ overflow continuing.  200 events have been dropped.
[ 18887.600] 
[ 18887.600] Backtrace:
[ 18887.600] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7f892565d796]
[ 18887.600] 1: /usr/bin/Xorg (0x7f89254df000+0x66a02) [0x7f8925545a02]
[ 18887.600] 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f891d5c6000+0x55d8) [0x7f891d5cb5d8]
[ 18887.600] 3: /usr/bin/Xorg (0x7f89254df000+0x8d697) [0x7f892556c697]
[ 18887.600] 4: /usr/bin/Xorg (0x7f89254df000+0xb1898) [0x7f8925590898]
[ 18887.600] 5: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8924807000+0xf030) [0x7f8924816030]
[ 18887.600] 6: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x8f020) [0x7f891e13b020]
[ 18887.600] 7: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x90bd5) [0x7f891e13cbd5]
[ 18887.600] 8: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0xfe18b) [0x7f891e1aa18b]
[ 18887.600] 9: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5358dc) [0x7f891e5e18dc]
[ 18887.600] 10: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x535acf) [0x7f891e5e1acf]
[ 18887.600] 11: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x524c1a) [0x7f891e5d0c1a]
[ 18887.600] 12: /usr/bin/Xorg (0x7f89254df000+0x110749) [0x7f89255ef749]
[ 18887.600] 13: /usr/bin/Xorg (miGlyphs+0x3f4) [0x7f89255deb74]
[ 18887.600] 14: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5258d9) [0x7f891e5d18d9]
[ 18887.600] 15: /usr/bin/Xorg (0x7f89254df000+0x1109dd) [0x7f89255ef9dd]
[ 18887.600] 16: /usr/bin/Xorg (0x7f89254df000+0x109bc6) [0x7f89255e8bc6]
[ 18887.600] 17: /usr/bin/Xorg (0x7f89254df000+0x52e41) [0x7f8925531e41]
[ 18887.600] 18: /usr/bin/Xorg (0x7f89254df000+0x41ed5) [0x7f8925520ed5]
[ 18887.600] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f8923530ead]
[ 18887.600] 20: /usr/bin/Xorg (0x7f89254df000+0x421ad) [0x7f89255211ad]
[ 18887.600] 
[ 18888.720] [mi] EQ overflow continuing.  300 events have been dropped.
[ 18888.720] 
[ 18888.720] Backtrace:
[ 18888.720] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7f892565d796]
[ 18888.720] 1: /usr/bin/Xorg (0x7f89254df000+0x66a02) [0x7f8925545a02]
[ 18888.720] 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f891d5c6000+0x55d8) [0x7f891d5cb5d8]
[ 18888.720] 3: /usr/bin/Xorg (0x7f89254df000+0x8d697) [0x7f892556c697]
[ 18888.720] 4: /usr/bin/Xorg (0x7f89254df000+0xb1898) [0x7f8925590898]
[ 18888.720] 5: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8924807000+0xf030) [0x7f8924816030]
[ 18888.720] 6: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x8f020) [0x7f891e13b020]
[ 18888.720] 7: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x90bd5) [0x7f891e13cbd5]
[ 18888.720] 8: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0xfe18b) [0x7f891e1aa18b]
[ 18888.720] 9: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5358dc) [0x7f891e5e18dc]
[ 18888.720] 10: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x535acf) [0x7f891e5e1acf]
[ 18888.720] 11: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x524c1a) [0x7f891e5d0c1a]
[ 18888.720] 12: /usr/bin/Xorg (0x7f89254df000+0x110749) [0x7f89255ef749]
[ 18888.720] 13: /usr/bin/Xorg (miGlyphs+0x3f4) [0x7f89255deb74]
[ 18888.720] 14: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5258d9) [0x7f891e5d18d9]
[ 18888.720] 15: /usr/bin/Xorg (0x7f89254df000+0x1109dd) [0x7f89255ef9dd]
[ 18888.720] 16: /usr/bin/Xorg (0x7f89254df000+0x109bc6) [0x7f89255e8bc6]
[ 18888.720] 17: /usr/bin/Xorg (0x7f89254df000+0x52e41) [0x7f8925531e41]
[ 18888.720] 18: /usr/bin/Xorg (0x7f89254df000+0x41ed5) [0x7f8925520ed5]
[ 18888.720] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f8923530ead]
[ 18888.720] 20: /usr/bin/Xorg (0x7f89254df000+0x421ad) [0x7f89255211ad]
[ 18888.720] 
[ 18889.120] [mi] EQ overflow continuing.  400 events have been dropped.
[ 18889.120] 
[ 18889.120] Backtrace:
[ 18889.120] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7f892565d796]
[ 18889.120] 1: /usr/bin/Xorg (0x7f89254df000+0x66a02) [0x7f8925545a02]
[ 18889.120] 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f891d5c6000+0x55d8) [0x7f891d5cb5d8]
[ 18889.120] 3: /usr/bin/Xorg (0x7f89254df000+0x8d697) [0x7f892556c697]
[ 18889.120] 4: /usr/bin/Xorg (0x7f89254df000+0xb1898) [0x7f8925590898]
[ 18889.120] 5: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8924807000+0xf030) [0x7f8924816030]
[ 18889.120] 6: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x8f01d) [0x7f891e13b01d]
[ 18889.120] 7: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x90bd5) [0x7f891e13cbd5]
[ 18889.120] 8: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0xfe18b) [0x7f891e1aa18b]
[ 18889.120] 9: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5358dc) [0x7f891e5e18dc]
[ 18889.120] 10: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x535acf) [0x7f891e5e1acf]
[ 18889.120] 11: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x524c1a) [0x7f891e5d0c1a]
[ 18889.120] 12: /usr/bin/Xorg (0x7f89254df000+0x110749) [0x7f89255ef749]
[ 18889.120] 13: /usr/bin/Xorg (miGlyphs+0x3f4) [0x7f89255deb74]
[ 18889.120] 14: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5258d9) [0x7f891e5d18d9]
[ 18889.120] 15: /usr/bin/Xorg (0x7f89254df000+0x1109dd) [0x7f89255ef9dd]
[ 18889.120] 16: /usr/bin/Xorg (0x7f89254df000+0x109bc6) [0x7f89255e8bc6]
[ 18889.120] 17: /usr/bin/Xorg (0x7f89254df000+0x52e41) [0x7f8925531e41]
[ 18889.120] 18: /usr/bin/Xorg (0x7f89254df000+0x41ed5) [0x7f8925520ed5]
[ 18889.120] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f8923530ead]
[ 18889.120] 20: /usr/bin/Xorg (0x7f89254df000+0x421ad) [0x7f89255211ad]
[ 18889.120] 
[ 18892.656] [mi] EQ overflow continuing.  500 events have been dropped.
[ 18892.657] 
[ 18892.657] Backtrace:
[ 18892.657] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7f892565d796]
[ 18892.657] 1: /usr/bin/Xorg (0x7f89254df000+0x66a02) [0x7f8925545a02]
[ 18892.657] 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f891d5c6000+0x55d8) [0x7f891d5cb5d8]
[ 18892.657] 3: /usr/bin/Xorg (0x7f89254df000+0x8d697) [0x7f892556c697]
[ 18892.657] 4: /usr/bin/Xorg (0x7f89254df000+0xb1898) [0x7f8925590898]
[ 18892.657] 5: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8924807000+0xf030) [0x7f8924816030]
[ 18892.657] 6: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x8f01d) [0x7f891e13b01d]
[ 18892.657] 7: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x90bd5) [0x7f891e13cbd5]
[ 18892.657] 8: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0xfe18b) [0x7f891e1aa18b]
[ 18892.657] 9: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5358dc) [0x7f891e5e18dc]
[ 18892.657] 10: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x535acf) [0x7f891e5e1acf]
[ 18892.657] 11: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x524c1a) [0x7f891e5d0c1a]
[ 18892.657] 12: /usr/bin/Xorg (0x7f89254df000+0x110749) [0x7f89255ef749]
[ 18892.657] 13: /usr/bin/Xorg (miGlyphs+0x3f4) [0x7f89255deb74]
[ 18892.657] 14: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5258d9) [0x7f891e5d18d9]
[ 18892.657] 15: /usr/bin/Xorg (0x7f89254df000+0x1109dd) [0x7f89255ef9dd]
[ 18892.657] 16: /usr/bin/Xorg (0x7f89254df000+0x109bc6) [0x7f89255e8bc6]
[ 18892.657] 17: /usr/bin/Xorg (0x7f89254df000+0x52e41) [0x7f8925531e41]
[ 18892.657] 18: /usr/bin/Xorg (0x7f89254df000+0x41ed5) [0x7f8925520ed5]
[ 18892.657] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f8923530ead]
[ 18892.657] 20: /usr/bin/Xorg (0x7f89254df000+0x421ad) [0x7f89255211ad]
[ 18892.657] 
[ 18893.056] [mi] EQ overflow continuing.  600 events have been dropped.
[ 18893.056] 
[ 18893.056] Backtrace:
[ 18893.056] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7f892565d796]
[ 18893.056] 1: /usr/bin/Xorg (0x7f89254df000+0x66a02) [0x7f8925545a02]
[ 18893.056] 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f891d5c6000+0x55d8) [0x7f891d5cb5d8]
[ 18893.056] 3: /usr/bin/Xorg (0x7f89254df000+0x8d697) [0x7f892556c697]
[ 18893.056] 4: /usr/bin/Xorg (0x7f89254df000+0xb1898) [0x7f8925590898]
[ 18893.056] 5: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8924807000+0xf030) [0x7f8924816030]
[ 18893.056] 6: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x8f01d) [0x7f891e13b01d]
[ 18893.056] 7: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x90bd5) [0x7f891e13cbd5]
[ 18893.056] 8: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0xfe18b) [0x7f891e1aa18b]
[ 18893.056] 9: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5358dc) [0x7f891e5e18dc]
[ 18893.056] 10: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x535acf) [0x7f891e5e1acf]
[ 18893.056] 11: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x524c1a) [0x7f891e5d0c1a]
[ 18893.056] 12: /usr/bin/Xorg (0x7f89254df000+0x110749) [0x7f89255ef749]
[ 18893.056] 13: /usr/bin/Xorg (miGlyphs+0x3f4) [0x7f89255deb74]
[ 18893.056] 14: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5258d9) [0x7f891e5d18d9]
[ 18893.056] 15: /usr/bin/Xorg (0x7f89254df000+0x1109dd) [0x7f89255ef9dd]
[ 18893.056] 16: /usr/bin/Xorg (0x7f89254df000+0x109bc6) [0x7f89255e8bc6]
[ 18893.056] 17: /usr/bin/Xorg (0x7f89254df000+0x52e41) [0x7f8925531e41]
[ 18893.056] 18: /usr/bin/Xorg (0x7f89254df000+0x41ed5) [0x7f8925520ed5]
[ 18893.056] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f8923530ead]
[ 18893.056] 20: /usr/bin/Xorg (0x7f89254df000+0x421ad) [0x7f89255211ad]
[ 18893.056] 
[ 18893.752] [mi] EQ overflow continuing.  700 events have been dropped.
[ 18893.752] 
[ 18893.752] Backtrace:
[ 18893.752] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7f892565d796]
[ 18893.752] 1: /usr/bin/Xorg (0x7f89254df000+0x66a02) [0x7f8925545a02]
[ 18893.752] 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f891d5c6000+0x55d8) [0x7f891d5cb5d8]
[ 18893.752] 3: /usr/bin/Xorg (0x7f89254df000+0x8d697) [0x7f892556c697]
[ 18893.752] 4: /usr/bin/Xorg (0x7f89254df000+0xb1898) [0x7f8925590898]
[ 18893.752] 5: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8924807000+0xf030) [0x7f8924816030]
[ 18893.752] 6: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x8f01d) [0x7f891e13b01d]
[ 18893.752] 7: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x90bd5) [0x7f891e13cbd5]
[ 18893.752] 8: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0xfe18b) [0x7f891e1aa18b]
[ 18893.752] 9: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5358dc) [0x7f891e5e18dc]
[ 18893.752] 10: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x535acf) [0x7f891e5e1acf]
[ 18893.752] 11: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x524c1a) [0x7f891e5d0c1a]
[ 18893.752] 12: /usr/bin/Xorg (0x7f89254df000+0x110749) [0x7f89255ef749]
[ 18893.752] 13: /usr/bin/Xorg (miGlyphs+0x3f4) [0x7f89255deb74]
[ 18893.752] 14: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5258d9) [0x7f891e5d18d9]
[ 18893.752] 15: /usr/bin/Xorg (0x7f89254df000+0x1109dd) [0x7f89255ef9dd]
[ 18893.752] 16: /usr/bin/Xorg (0x7f89254df000+0x109bc6) [0x7f89255e8bc6]
[ 18893.752] 17: /usr/bin/Xorg (0x7f89254df000+0x52e41) [0x7f8925531e41]
[ 18893.752] 18: /usr/bin/Xorg (0x7f89254df000+0x41ed5) [0x7f8925520ed5]
[ 18893.752] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f8923530ead]
[ 18893.752] 20: /usr/bin/Xorg (0x7f89254df000+0x421ad) [0x7f89255211ad]
[ 18893.752] 
[ 18894.312] [mi] EQ overflow continuing.  800 events have been dropped.
[ 18894.312] 
[ 18894.312] Backtrace:
[ 18894.312] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7f892565d796]
[ 18894.312] 1: /usr/bin/Xorg (0x7f89254df000+0x66a02) [0x7f8925545a02]
[ 18894.312] 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f891d5c6000+0x55d8) [0x7f891d5cb5d8]
[ 18894.312] 3: /usr/bin/Xorg (0x7f89254df000+0x8d697) [0x7f892556c697]
[ 18894.312] 4: /usr/bin/Xorg (0x7f89254df000+0xb1898) [0x7f8925590898]
[ 18894.312] 5: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8924807000+0xf030) [0x7f8924816030]
[ 18894.312] 6: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x8f01d) [0x7f891e13b01d]
[ 18894.312] 7: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x90bd5) [0x7f891e13cbd5]
[ 18894.312] 8: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0xfe18b) [0x7f891e1aa18b]
[ 18894.312] 9: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5358dc) [0x7f891e5e18dc]
[ 18894.312] 10: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x535acf) [0x7f891e5e1acf]
[ 18894.312] 11: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x524c1a) [0x7f891e5d0c1a]
[ 18894.312] 12: /usr/bin/Xorg (0x7f89254df000+0x110749) [0x7f89255ef749]
[ 18894.312] 13: /usr/bin/Xorg (miGlyphs+0x3f4) [0x7f89255deb74]
[ 18894.312] 14: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5258d9) [0x7f891e5d18d9]
[ 18894.312] 15: /usr/bin/Xorg (0x7f89254df000+0x1109dd) [0x7f89255ef9dd]
[ 18894.312] 16: /usr/bin/Xorg (0x7f89254df000+0x109bc6) [0x7f89255e8bc6]
[ 18894.312] 17: /usr/bin/Xorg (0x7f89254df000+0x52e41) [0x7f8925531e41]
[ 18894.312] 18: /usr/bin/Xorg (0x7f89254df000+0x41ed5) [0x7f8925520ed5]
[ 18894.312] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f8923530ead]
[ 18894.312] 20: /usr/bin/Xorg (0x7f89254df000+0x421ad) [0x7f89255211ad]
[ 18894.312] 
[ 18894.712] [mi] EQ overflow continuing.  900 events have been dropped.
[ 18894.712] 
[ 18894.712] Backtrace:
[ 18894.712] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7f892565d796]
[ 18894.712] 1: /usr/bin/Xorg (0x7f89254df000+0x66a02) [0x7f8925545a02]
[ 18894.712] 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f891d5c6000+0x55d8) [0x7f891d5cb5d8]
[ 18894.712] 3: /usr/bin/Xorg (0x7f89254df000+0x8d697) [0x7f892556c697]
[ 18894.712] 4: /usr/bin/Xorg (0x7f89254df000+0xb1898) [0x7f8925590898]
[ 18894.712] 5: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8924807000+0xf030) [0x7f8924816030]
[ 18894.712] 6: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x8f020) [0x7f891e13b020]
[ 18894.712] 7: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x90bd5) [0x7f891e13cbd5]
[ 18894.712] 8: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0xfe18b) [0x7f891e1aa18b]
[ 18894.712] 9: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5358dc) [0x7f891e5e18dc]
[ 18894.712] 10: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x535acf) [0x7f891e5e1acf]
[ 18894.712] 11: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x524c1a) [0x7f891e5d0c1a]
[ 18894.712] 12: /usr/bin/Xorg (0x7f89254df000+0x110749) [0x7f89255ef749]
[ 18894.712] 13: /usr/bin/Xorg (miGlyphs+0x3f4) [0x7f89255deb74]
[ 18894.712] 14: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5258d9) [0x7f891e5d18d9]
[ 18894.712] 15: /usr/bin/Xorg (0x7f89254df000+0x1109dd) [0x7f89255ef9dd]
[ 18894.712] 16: /usr/bin/Xorg (0x7f89254df000+0x109bc6) [0x7f89255e8bc6]
[ 18894.712] 17: /usr/bin/Xorg (0x7f89254df000+0x52e41) [0x7f8925531e41]
[ 18894.712] 18: /usr/bin/Xorg (0x7f89254df000+0x41ed5) [0x7f8925520ed5]
[ 18894.712] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f8923530ead]
[ 18894.712] 20: /usr/bin/Xorg (0x7f89254df000+0x421ad) [0x7f89255211ad]
[ 18894.712] 
[ 18895.224] [mi] EQ overflow continuing.  1000 events have been dropped.
[ 18895.224] [mi] No further overflow reports will be reported until the clog is cleared.
[ 18895.224] 
[ 18895.224] Backtrace:
[ 18895.224] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7f892565d796]
[ 18895.224] 1: /usr/bin/Xorg (0x7f89254df000+0x66a02) [0x7f8925545a02]
[ 18895.224] 2: /usr/lib/xorg/modules/input/evdev_drv.so (0x7f891d5c6000+0x55d8) [0x7f891d5cb5d8]
[ 18895.224] 3: /usr/bin/Xorg (0x7f89254df000+0x8d697) [0x7f892556c697]
[ 18895.224] 4: /usr/bin/Xorg (0x7f89254df000+0xb1898) [0x7f8925590898]
[ 18895.224] 5: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7f8924807000+0xf030) [0x7f8924816030]
[ 18895.224] 6: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x8f020) [0x7f891e13b020]
[ 18895.224] 7: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x90bd5) [0x7f891e13cbd5]
[ 18895.224] 8: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0xfe18b) [0x7f891e1aa18b]
[ 18895.224] 9: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5358dc) [0x7f891e5e18dc]
[ 18895.224] 10: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x535acf) [0x7f891e5e1acf]
[ 18895.224] 11: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x524c1a) [0x7f891e5d0c1a]
[ 18895.224] 12: /usr/bin/Xorg (0x7f89254df000+0x110749) [0x7f89255ef749]
[ 18895.224] 13: /usr/bin/Xorg (miGlyphs+0x3f4) [0x7f89255deb74]
[ 18895.224] 14: /usr/lib/xorg/modules/drivers/nvidia_drv.so (0x7f891e0ac000+0x5258d9) [0x7f891e5d18d9]
[ 18895.224] 15: /usr/bin/Xorg (0x7f89254df000+0x1109dd) [0x7f89255ef9dd]
[ 18895.224] 16: /usr/bin/Xorg (0x7f89254df000+0x109bc6) [0x7f89255e8bc6]
[ 18895.224] 17: /usr/bin/Xorg (0x7f89254df000+0x52e41) [0x7f8925531e41]
[ 18895.224] 18: /usr/bin/Xorg (0x7f89254df000+0x41ed5) [0x7f8925520ed5]
[ 18895.224] 19: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xfd) [0x7f8923530ead]
[ 18895.224] 20: /usr/bin/Xorg (0x7f89254df000+0x421ad) [0x7f89255211ad]
[ 18895.224]

For completeness sake I attached the nvidia log as generated by the script.

I hope you can advise me on this on how to get this fixed.

[Quibus]

Some extra info:
- with my phone I was still able to login during a lockup
- music kept on playing during lockup
- after logging in, top showed me that Xorg was using 100% CPU time. Killing the process with SIGKILL was the trick to recover without Alt-SysRq trickery

My conclusion (as far as I can tell with my very limited knowledge on the details): it's some infinite loop in X/driver, not in the kernel part....

[sandipt]

Please provide information as much as you can get to reproduce the issue :
- Reproduction steps in detail
- Desktop Environment you are using like KDE, GNOME, Unity etc…
- Window Manager you are using Compiz, gnome-shell, Kwin, Unity etc…
- Is the use is specific to GPU, System hardware, OS , Software Component etc…?
- Using any display manager like gdm, kdm etc…

[Quibus]

Originally Posted by sandipt

Please provide information as much as you can get to reproduce the issue :
- Reproduction steps in detail
- Desktop Environment you are using like KDE, GNOME, Unity etc…
- Window Manager you are using Compiz, gnome-shell, Kwin, Unity etc…
- Is the use is specific to GPU, System hardware, OS , Software Component etc…?
- Using any display manager like gdm, kdm etc…

I have no clear way to reproduce it. I did notice that it didn't happen when using the PC all by myself, stuff started to go wrong when I had my wife log in on a new X session.

I'm using GNOME 3, which is default on Debian testing. GNOME 3 with gnome-shell and gdm3. Your 4th question isn't clear to me.

What usually triggers it for me after a while:
1) login as myself
2) in GNOME, select "switch user" from the menu. This starts up a new X with login screen ("under CTRL-ALT-F8" so to say)
3) login there as well (this is the situation I meant above). This user also uses gnome-shell, etc., the whole thing, same as what I do.
4) switch back to the first user with CTRL-ALT-F7
5) unlock it and continue working

After a while, typically when I click on a link or something, I see the screen flashing black once and things start to stutter (clock doesn't run for a while). Sometimes it recovers, but most often it ends up in the hang up situation pretty soon after that (within a minute).

I've been using the PC yesterday all day without the stepds 2-5 and I was fine then. So it seems to be related. (I'm using this setup for a long time, without any problems, so it is a regression.)

[Quibus]

Is someone still reading this??

[rockob]

That Xid 13 error looks a lot like what I and others have been experiencing for over a year now, with no feedback from nvidia. See for instance these threads:

• http://www.nvnews.net/vbulletin/showthread.php?t=177732
• http://www.nvnews.net/vbulletin/showthread.php?t=163468
• http://www.nvnews.net/vbulletin/show....php?p=2571043

and there are many, many more threads complaining of what I suspect are the same issue (Xid errors, GPU has fallen off the bus, attempted to release interrupt while in atomic context) causing lockups or crashes. Personally, I am finding the 302 and 304 series drivers to be even more prone to crashing than the 29x series were.

It's rare to see an nvidia dev participate in any of the threads; if they do, they usually just add one comment and then are never seen again. I even emailed their official bug reporting address but I didn't get even get an acknowledgement of receipt.