x11perf -all leads to Xorg crash on 8-STABLE

[Carlos A. M. dos Santos]

On Sun, Dec 27, 2009 at 5:41 PM, Robert Noland <rnoland at freebsd.org> wrote:
> On Sun, 2009-12-27 at 15:41 -0200, Carlos A. M. dos Santos wrote:
>> On Sun, Dec 27, 2009 at 3:22 PM, Robert Noland <rnoland at freebsd.org> wrote:
>> > On Sun, 2009-12-27 at 15:17 -0200, Carlos A. M. dos Santos wrote:
>> [...]
>> >> I figured out that "x11perf -shmputxy10" triggers the crash. Mys first
>> >> guess was that something related to shared memory was causing the
>> >> problem. However, running the X server with
>> >>
>> >>      truss /usr/local/bin/Xorg >& Xorg.truss.log
>> >>
>> >> shows that all shm* calls succeed. Anyway, I attempted to increase the
>> >> available shared memory, using the values recommended by the Xine
>> >> port:
>> >>
>> >>      sysctl kern.ipc.shmmax=67108864
>> >>      sysclt kern.ipc.shmall=32768
>> >>
>> >> But it keeps crashing.
>> >
>> > Attaching gdb to X and getting a backtrace and/or enabling drm debugging
>> > is more likely to point to the issue.
>>
>> How do I enable drm debugging?
>
> sysctl hw.dri.0.debug=1

Ah, it's a kernel option. I thought it was something to put in my xorg.conf.

Here is the backtrace:

(gdb) run
Starting program: /usr/local/bin/Xorg
[New LWP 100136]
[New Thread 801e041c0 (LWP 100136)]

X.Org X Server 1.6.1
Release Date: 2009-4-14
X Protocol Version 11, Revision 0
Build Operating System: FreeBSD 8.0-STABLE amd64
Current Operating System: FreeBSD avatar 8.0-STABLE FreeBSD 8.0-STABLE
#3: Wed Dec 23 14:39:00 BRST 2009
root at avatar:/usr/obj/usr/src/sys/Compaq_nx6320 amd64
Build Date: 27 December 2009  10:05:04PM

	Before reporting problems, check http://wiki.x.org
	to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
	(++) from command line, (!!) notice, (II) informational,
	(WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.0.log", Time: Sun Dec 27 22:28:57 2009
(==) Using config file: "/etc/X11/xorg.conf"
Setting master
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols
>                   Ignoring extra symbols
Errors from xkbcomp are not fatal to the X server
(EE) config/hal: couldn't initialise context: (null) ((null))

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 801e041c0 (LWP 100136)]
0x000000080107c255 in pixman_blt_sse2 (src_bits=0x81344f000,
dst_bits=0x804000000, src_stride=2400, dst_stride=4096,
    src_bpp=32, dst_bpp=32, src_x=576, src_y=576, dst_x=3, dst_y=3,
width=10, height=9) at pixman-sse2.c:5330
5330		    *(uint32_t *)d = *(uint32_t *)s;
(gdb) where
#0  0x000000080107c255 in pixman_blt_sse2 (src_bits=0x81344f000,
dst_bits=0x804000000, src_stride=2400,
    dst_stride=4096, src_bpp=32, dst_bpp=32, src_x=576, src_y=576,
dst_x=3, dst_y=3, width=10, height=9)
    at pixman-sse2.c:5330
#1  0x000000080107c88d in sse2_blt (imp=0x801f42e00,
src_bits=0x81344f000, dst_bits=0x804000000, src_stride=600,
    dst_stride=1024, src_bpp=32, dst_bpp=32, src_x=576, src_y=576,
dst_x=3, dst_y=3, width=10, height=10)
    at pixman-sse2.c:5729
#2  0x0000000800fa4611 in _pixman_implementation_blt (imp=0x801f42e00,
src_bits=0x81344f000, dst_bits=0x804000000,
    src_stride=600, dst_stride=1024, src_bpp=32, dst_bpp=32,
src_x=576, src_y=576, dst_x=3, dst_y=3, width=10,
    height=10) at pixman-implementation.c:250
#3  0x0000000800fc2a91 in pixman_blt (src_bits=0x81344f000,
dst_bits=0x804000000, src_stride=600, dst_stride=1024,
    src_bpp=32, dst_bpp=32, src_x=576, src_y=576, dst_x=3, dst_y=3,
width=10, height=10) at pixman.c:236
#4  0x0000000802cd94fd in fbCopyNtoN (pSrcDrawable=0x801ffad40,
pDstDrawable=0x801f27d00, pGC=0x813643440,
    pbox=0x7fffffffe580, nbox=0, dx=573, dy=573, reverse=0,
upsidedown=0, bitplane=0, closure=0x0) at fbcopy.c:64
#5  0x0000000802df289c in exaCopyNtoN (pSrcDrawable=0x801ffad40,
pDstDrawable=0x801f27d00, pGC=0x813643440,
    pbox=0x7fffffffe580, nbox=1, dx=573, dy=573, reverse=0,
upsidedown=0, bitplane=0, closure=0x0) at exa_accel.c:520
#6  0x0000000802cda3b5 in fbCopyRegion (pSrcDrawable=0x801ffad40,
pDstDrawable=0x801f27d00, pGC=0x813643440,
    pDstRegion=0x7fffffffe580, dx=573, dy=573, copyProc=0x802df2150
<exaCopyNtoN>, bitPlane=0, closure=0x0)
    at fbcopy.c:396
#7  0x0000000802cda97d in fbDoCopy (pSrcDrawable=0x801ffad40,
pDstDrawable=0x801f27d00, pGC=0x813643440, xIn=576,
    yIn=576, widthSrc=10, heightSrc=10, xOut=3, yOut=3,
copyProc=0x802df2150 <exaCopyNtoN>, bitPlane=0, closure=0x0)
    at fbcopy.c:596
#8  0x0000000802df3230 in exaCopyArea (pSrcDrawable=0x801ffad40,
pDstDrawable=0x801f27d00, pGC=0x813643440, srcx=576,
    srcy=576, width=10, height=10, dstx=0, dsty=0) at exa_accel.c:547
#9  0x00000000005a09b1 in damageCopyArea (pSrc=0x801ffad40,
pDst=0x801f27d00, pGC=0x813643440, srcx=576, srcy=576,
    width=10, height=10, dstx=0, dsty=0) at damage.c:949
#10 0x000000000055f863 in doShmPutImage (dst=0x801f27d00,
pGC=0x813643440, depth=24, format=1, w=600, h=600, sx=576,
    sy=576, sw=10, sh=10, dx=0, dy=0, data=0x81344f000 "") at shm.c:509
#11 0x0000000000561359 in ProcShmPutImage (client=0x801e1e680) at shm.c:865
#12 0x00000000005624fc in ProcShmDispatch (client=0x801e1e680) at shm.c:1119
#13 0x0000000000448ef8 in Dispatch () at dispatch.c:437
#14 0x000000000042d13c in main (argc=1, argv=0x7fffffffe988,
envp=0x7fffffffe998) at main.c:397