[Bug 94515] xorg-server 1.18.2 freeze desktop on i915

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94515

--- Comment #2 from Tobias Klausmann <tobias.klausmann at mni.thm.de> ---
i can confirm this bug (sometimes right at startup), it always leads to the
following backtrace (sorry for no line numbers):

#0  0x00007f1c47e8b487 in ioctl () at /lib64/libc.so.6
#1  0x00007f1c491cdbf8 in drmIoctl () at /usr/lib64/libdrm.so.2
#2  0x00007f1c43972fff in sna_present_queue_vblank () at
/usr/lib64/xorg/modules/drivers/intel_drv.so
#3  0x000000000050ff4c in present_execute ()
#4  0x00007f1c43973161 in sna_present_vblank_handler () at
/usr/lib64/xorg/modules/drivers/intel_drv.so
#5  0x00007f1c438e4cff in sna_mode_wakeup () at
/usr/lib64/xorg/modules/drivers/intel_drv.so
#6  0x00007f1c438e7ff8 in sna_wakeup_handler () at
/usr/lib64/xorg/modules/drivers/intel_drv.so
#7  0x000000000043db1a in WakeupHandler ()
#8  0x0000000000586ce7 in WaitForSomething ()
#9  0x0000000000438f5e in Dispatch ()
#10 0x000000000043cfe3 in dix_main ()
#11 0x00007f1c47dc9610 in __libc_start_main () at /lib64/libc.so.6
#12 0x0000000000428539 in _start ()

Hardware is an Notebook with intel (gen7/ivb)+ nvidia.

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