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Re: xsrc/49553: Xorg hits 100% CPU on shutdown

The following reply was made to PR xsrc/49553; it has been noted by GNATS.

From: Martin Husemann <>
Subject: Re: xsrc/49553: Xorg hits 100% CPU on shutdown
Date: Mon, 12 Jan 2015 09:02:51 +0100

 My case may be a bit different, and it also happens on non-DRMKMS kernels.
 It all started with the latest Xorg updates.
 My Xorg server sits in "a loop" here:
 Attaching to process 1656
 Reading symbols from /usr/X11R7/bin/Xorg...Reading symbols from /usr/libdata/debug//usr/X11R7/bin/Xorg.debug...done.
 Loaded symbols for /usr/libexec/ld.elf_so
 arena_dalloc (ptr=0x7f7ff7b0e140, chunk=0x7f7ff7b00000, arena=0x7f7ff7fdd000)
     at /usr/src/lib/libc/stdlib/jemalloc.c:2542
 2542			size = bin->reg_size;
 (gdb) bt
 #0  arena_dalloc (ptr=0x7f7ff7b0e140, chunk=0x7f7ff7b00000, 
     arena=0x7f7ff7fdd000) at /usr/src/lib/libc/stdlib/jemalloc.c:2542
 #1  idalloc (ptr=ptr@entry=0x7f7ff7b0e140)
     at /usr/src/lib/libc/stdlib/jemalloc.c:3219
 #2  0x00007f7ff42b4153 in free (ptr=0x7f7ff7b0e140)
     at /usr/src/lib/libc/stdlib/jemalloc.c:3901
 #3  0x000000000055321b in _XSERVTransClose ()
 #4  0x000000000054dcb1 in CloseWellKnownConnections ()
 #5  0x0000000000548649 in AbortServer ()
 #6  0x00000000005489fb in FatalError ()
 #7  0x000000000054ba38 in ?? ()
 #8  0x00007f7ff429fbe0 in _opendir (name=<optimized out>)
     at /usr/src/lib/libc/gen/opendir.c:72
 #9  0x000000010000000b in ?? ()
 #10 0x0000000000000000 in ?? ()
 (gdb) p *bin
 Cannot access memory at address 0x1f7064001f6063e
 (gdb) p bin
 $1 = (arena_bin_t *) 0x1f7064001f6063e
 A broken signal handler? Unfortunately the original issue is hidden this

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