On Wed, 2013-01-16 at 10:31 -0500, Clyde E. Kunkel wrote: > Rawhide gnome desktop acting up recently. Have to restart several times > to get desktop that is readable. Several times screens are garbled. > Here is a bit of an Xorg.0.log that may be a clue: Here's how to read this and similar backtraces: > (EE) [mi] EQ overflowing. Additional events will be discarded until > existing events are processed. > (EE) > (EE) Backtrace: > (EE) 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x46a4e6] > (EE) 1: /usr/bin/Xorg (mieqEnqueue+0x26b) [0x57fe4b] > (EE) 2: /usr/bin/Xorg (0x400000+0x4c0d2) [0x44c0d2] > (EE) 3: /usr/lib64/xorg/modules/input/evdev_drv.so > (0x7f5b83969000+0x64b4) [0x7f5b8396f4b4] > (EE) 4: /usr/bin/Xorg (0x400000+0x87707) [0x487707] > (EE) 5: /usr/bin/Xorg (0x400000+0xb0d98) [0x4b0d98] > (EE) 6: /lib64/libpthread.so.0 (0x3335400000+0xf070) [0x333540f070] This is the entry to the SIGIO handler where we try to process input events. But since we're in a signal handler, we can't call malloc. That's why we can run out of space in the Event Queue. > (EE) 7: /lib64/libc.so.6 (ioctl+0x7) [0x3334cecb07] > (EE) 8: /lib64/libdrm.so.2 (drmIoctl+0x28) [0x7f5b84b35668] > (EE) 9: /lib64/libdrm.so.2 (drmCommandWriteRead+0x1c) [0x7f5b84b378dc] > (EE) 10: /lib64/libdrm_radeon.so.1 (0x7f5b83fcc000+0x2029) [0x7f5b83fce029] > (EE) 11: /lib64/libdrm_radeon.so.1 (0x7f5b83fcc000+0x2254) [0x7f5b83fce254] > (EE) 12: /usr/lib64/xorg/modules/drivers/radeon_drv.so > (0x7f5b841f7000+0x26ce4) [0x7f5b8421dce4] > (EE) 13: /usr/lib64/xorg/modules/libexa.so (0x7f5b83598000+0xb4e0) > [0x7f5b835a34e0] exa is the hardware acceleration layer. The radeon driver is handing something down to the kernel to execute through a DRM ioctl, and it's not completing promptly. So either the radeon X driver is suddenly doing something newly wrong that's taking too long, or the radeon kernel driver is. - ajax
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