Comment 7 for bug 296122

Revision history for this message
Paganini (nebanks) wrote : Re: XNEST crashes randomly

Hi Bryce,

Thanks for taking time to look at my bug, since no one else seems to have it.

I attached gdb to Xnest on the client machine, and to Xorg on the host machine after connecting to it via ssh.

After the crash the Xnest debug says "Program exited with code 01." When I ask for a backtrace it says "No stack." Here's the Xorg backtrace after hitting CTRL+C:

(gdb) backtrace full
#0 0xb7fe1410 in __kernel_vsyscall ()
No symbol table info available.
#1 0xb7e2e84d in select () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2 0x081b22e5 in WaitForSomething (pClientsReady=0xbfed0f20)
    at ../../os/WaitFor.c:236
 i = <value optimized out>
 waittime = {tv_sec = 11, tv_usec = 416000}
 wt = (struct timeval *) 0xbfed0ee0
 timeout = <value optimized out>
 clientsReadable = {fds_bits = {0 <repeats 32 times>}}
 clientsWritable = {fds_bits = {137737928, 4199967, 136454976,
    136512764, 2, 32, 2, 136454976, 137902160, 136456672, -1074983336,
    -1222761997, 137902160, -1209360396, -1209355936, 137868360, -1074983336,
    -1210260240, -1209355936, 137868360, 136340232, -1074983344, -1074983304,
    137868352, 137902160, -1074983344, 137737928, 136163204, 137868360, 2,
    -1074983288, 4096}}
 curclient = <value optimized out>
 selecterr = -1222313176
 nready = <value optimized out>
 devicesReadable = {fds_bits = {137902160, -1222986884, -1074983560,
    -1223037046, 137902160, 137902224, 137902160, -1222298521, 137902160, 156,
    20, 135724671, 136163204, 0, 137902216, -1074983480, 2, 16, -1209469696,
---Type <return> to continue, or q <return> to quit---

    -1210276895, 137902160, 136454976, 136481800, -1221410176, 2, 32,
    -1074983416, 137868352, -1209355924, 137904992, -1209469796, 136454976}}
 now = 1861873
 someReady = 0
#3 0x0808d69d in Dispatch () at ../../dix/dispatch.c:425
 result = <value optimized out>
 client = (ClientPtr) 0x835b6c8
 nready = -1
 start_tick = 20
#4 0x0807471b in main (argc=10, argv=0xbfed1454, envp=0x0)
    at ../../dix/main.c:452
 i = 1
 error = 136163204
 xauthfile = <value optimized out>
 alwaysCheckForInput = {0, 1}
(gdb)