Hello,
I reported this bug to the list about a year ago. SUN have not fixed it
(it's due to a buggy MESA library compiled into Xnewt.
There is a workaround which one of my colleagues came up with which
allows Matlab to work with SUNRays, I'll email it to you
tomorrow.
Wilkinson, Alex wrote:
Hi all,
Using RHEL 5.3 (2.6.18-128) + SRSS 4.2 - x86_64.
SunRay-2FS + Firmware Revision 4.2_140993-01_2010.01.21.17.35.
Problem
-------
When running the "bench" command in Matlab2009a (x86_64) Xnewt segfaults.
This ONLY happens when the '3D rendering' part of the benchmark kicks in.
The result - session completely dies and resets.
dmesg(1) output
Xnewt[8330]: segfault at 00000000000166e0 rip 00000000082ba0e3 rsp
00000000ffca55a4 error 4
/var/opt/SUNWut/log/messages output
Apr 15 11:10:35 stlsux05 gdm[6253]: Handling message: 'XPID 12744 0'
Apr 15 11:10:35 stlsux05 gdm[6253]: Got XPID == 0
Apr 15 11:10:35 stlsux05 gdm[6253]: Handling message: 'SESSPID 12744 0'
Apr 15 11:10:35 stlsux05 gdm[6253]: Got SESSPID == 0
Apr 15 11:10:35 stlsux05 gconfd (myusername-13562): Received signal 15,
shutting down cleanly
Apr 15 11:10:35 stlsux05 gdm[12744]: slave_waitpid: done_waiting
Apr 15 11:10:35 stlsux05 gdm[12744]: Session: start_time: 1271300046
end_time: 1271301035
Apr 15 11:10:35 stlsux05 gdm[12744]: Sending SESSPID == 0 for slave 12744
Apr 15 11:10:35 stlsux05 gdm[6253]: Handling message: 'SESSPID 12744 0'
Apr 15 11:10:35 stlsux05 gdm[6253]: Got SESSPID == 0
Apr 15 11:10:35 stlsux05 gdm[12744]: gdm_slave_session_stop: myusername on
:11
Apr 15 11:10:35 stlsux05 gdm[12744]: Fatal X error detected. Ignoring same
during session shut down.
Apr 15 11:10:35 stlsux05 gconfd (myusername-13562): Exiting
Apr 15 11:10:35 stlsux05 gdm[12744]: gdm_slave_session_stop: back here from
xioerror
Apr 15 11:10:35 stlsux05 gdm[12744]: gdm_slave_session_stop: Running post
session script
Apr 15 11:10:35 stlsux05 gdm[12744]: gdm_auth_user_remove: Removing cookie
from /home/myusername/.Xauthority (0)
Apr 15 11:10:35 stlsux05 gdm[12744]: gdm_auth_purge: :11
Apr 15 11:10:35 stlsux05 gdm[12744]: Running gdm_verify_cleanup and pamh !=
NULL
Apr 15 11:10:35 stlsux05 gdm[12744]: Running pam_close_session
Apr 15 11:10:35 stlsux05 gdm[12744]: Running pam_setcred with
PAM_DELETE_CRED
gdb(1) backtrace (looks to be related to MESA).
Program received signal SIGSEGV, Segmentation fault.
0x082ba0e3 in xmesa_check_and_update_buffer_size (xmctx=0x0,
drawBuffer=0xaf48220) at xm_api.c:1887
1887 xm_api.c: No such file or directory. in xm_api.c
(gdb) bt
#0 0x082ba0e3 in xmesa_check_and_update_buffer_size (xmctx=0x0,
drawBuffer=0xaf48220) at xm_api.c:1887
#1 0x082baeb3 in XMesaResizeBuffers (b=0xaf48220) at xm_api.c:2539
#2 0x08267a81 in __glXMesaDrawableResize (base=0xa7c4228) at xf86glx.c:113
#3 0x082282a1 in PositionWindow (pWin=0xa805f80, x=519, y=104) at
glxscreens.c:230
#4 0x080a3d5a in ResizeChildrenWinSize (pWin=0xa8055f0, dx=0, dy=0, dw=0,
dh=-25) at window.c:1867
#5 0x081f31f1 in miSlideAndSizeWindow (pWin=0xa8055f0, x=514, y=25, w=570,
h=479, pSib=0x0) at miwindow.c:728
#6 0x080a5134 in ConfigureWindow (pWin=0xa8055f0, mask=15,
vlist=0xaf2e604, client=0xa7e30f0) at window.c:2492
#7 0x08077813 in ProcConfigureWindow (client=0xa7e30f0) at dispatch.c:764
#8 0x081ad760 in XaceCatchDispatchProc (client=0xa7e30f0) at xace.c:281
#9 0x08076df1 in Dispatch () at dispatch.c:457
#10 0x0809355c in main (argc=11, argv=0xff9b2304, envp=0xff9b2334) at
main.c:445
(gdb) quit
The program is running. Quit anyway (and detach it)? (y or n) y
LND: Sending signal 11 to Thread 0xf7f05b00 (LWP 14093)
Detaching from program: /opt/SUNWut/lib/Xnewt, process 14093
Has anyone else seen this ? Are there any patches available for this ?
Thanks!
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