Hmm, well it's definitely trying to put out a backtrace. Looks like
something fails inside xf86Wakeup. Wish it gave an indication what the
extension was that it's calling.
write(14, "======= Backtrace: =========\n"..., 29) = 29
writev(14, [{"/lib/libc.so.6"..., 14}, {"[0x"..., 3}, {"7f496c86fd48"..., 12},
{"]\n"..., 2}], 4) = 31
writev(14, [{"/lib/libc.so.6"..., 14}, {"("..., 1}, {"cfree"..., 5}, {"+0x"...,
3}, {"76"..., 2}, {")"..., 1}, {"[0x"..., 3}, {"7f496c872306"..., 12},
{"]\n"..., 2}], 9) = 43
writev(14, [{"/usr/X11R6/bin/X"..., 16}, {"("..., 1}, {"LogVMessageVerb"...,
15}, {"+0x"..., 3}, {"104"..., 3}, {")"..., 1}, {"[0x"..., 3}, {"4faae4"...,
6}, {"]\n"..., 2}], 9) = 50
writev(14, [{"/usr/X11R6/bin/X"..., 16}, {"("..., 1}, {"LogMessage"..., 10},
{"+0x"..., 3}, {"90"..., 2}, {")"..., 1}, {"[0x"..., 3}, {"4facc0"..., 6},
{"]\n"..., 2}], 9) = 44
writev(14, [{"/usr/lib/xorg/modules/extensions/"..., 43}, {"[0x"..., 3},
{"7f496bd16c03"..., 12}, {"]\n"..., 2}], 4) = 60
writev(14, [{"/usr/X11R6/bin/X"..., 16}, {"("..., 1}, {"xf86Wakeup"..., 10},
{"+0x"..., 3}, {"2b9"..., 3}, {")"..., 1}, {"[0x"..., 3}, {"485b19"..., 6},
{"]\n"..., 2}], 9) = 45
writev(14, [{"/usr/X11R6/bin/X"..., 16}, {"("..., 1}, {"WakeupHandler"..., 13},
{"+0x"..., 3}, {"4b"..., 2}, {")"..., 1}, {"[0x"..., 3}, {"451d2b"..., 6},
{"]\n"..., 2}], 9) = 47
writev(14, [{"/usr/X11R6/bin/X"..., 16}, {"("..., 1}, {"WaitForSomething"...,
16}, {"+0x"..., 3}, {"1ef"..., 3}, {")"..., 1}, {"[0x"..., 3}, {"4ee59f"...,
6}, {"]\n"..., 2}], 9) = 51
writev(14, [{"/usr/X11R6/bin/X"..., 16}, {"("..., 1}, {"Dispatch"..., 8},
{"+0x"..., 3}, {"80"..., 2}, {")"..., 1}, {"[0x"..., 3}, {"44def0"..., 6},
{"]\n"..., 2}], 9) = 42
writev(14, [{"/usr/X11R6/bin/X"..., 16}, {"("..., 1}, {"main"..., 4},
{"+0x"..., 3}, {"3bd"..., 3}, {")"..., 1}, {"[0x"..., 3}, {"433c5d"..., 6},
{"]\n"..., 2}], 9) = 39
writev(14, [{"/lib/libc.so.6"..., 14}, {"("..., 1}, {"__libc_start_main"...,
17}, {"+0x"..., 3}, {"e6"..., 2}, {")"..., 1}, {"[0x"..., 3},
{"7f496c8165a6"..., 12}, {"]\n"..., 2}], 9) = 55
writev(14, [{"/usr/X11R6/bin/X"..., 16}, {"[0x"..., 3}, {"4330e9"..., 6},
{"]\n"..., 2}], 4) = 27
** Changed in: xorg-server (Ubuntu)
Sourcepackagename: xorg => xorg-server
Importance: Undecided => High
Status: New => Triaged
--
*** glibc detected *** free(): invalid next size (fast)
https://bugs.launchpad.net/bugs/328035
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