Bug Tracker item #3397653, was opened at 2011-08-24 15:02
Message generated for change (Comment added) made by snmishra
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Category: UN*X version
Group: 1.1.X
Status: Open
>Resolution: Invalid
Priority: 5
Private: No
Submitted By: Satya Narayan Mishra (snmishra)
Assigned to: Adam Tkac (atkac)
Summary: TigerVNC crash with SIGPIPE
Initial Comment:
I have only seen this crash when interacting with Motif programs. That may be
because I mostly use Motif programs (CAD tools) or may be something to do with
how Motif behaves.
I am using TigerVNC x86_64 version 1.1.0 on RHEL 4.6:
Linux HOST 2.6.9-67.ELsmp #1 SMP Wed Nov 7 13:56:44 EST 2007 x86_64 x86_64
x86_64 GNU/Linux
Stacktrace
Program received signal SIGPIPE, Broken pipe.
[Switching to Thread 182894042784 (LWP 30209)]
0x0000003ba48c0077 in writev () from /lib64/tls/libc.so.6
(gdb) bt
#0 0x0000003ba48c0077 in writev () from /lib64/tls/libc.so.6
#1 0x00000000006ba0fc in _XSERVTransSocketWritev ()
#2 0x00000000006b52e9 in FlushClient ()
#3 0x00000000006b593d in FlushAllOutput ()
#4 0x00000000006684fa in Dispatch ()
#5 0x000000000067e5fe in main ()
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>Comment By: Satya Narayan Mishra (snmishra)
Date: 2012-06-13 12:45
Message:
I haven't been able to replicate this any more.
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Comment By: Satya Narayan Mishra (snmishra)
Date: 2011-08-24 20:12
Message:
I just realized that gdb caught the SIGPIPE, but Xvnc continues to function
after that. The crashes I experienced may need more investigation on my
part. I will update when I see a full crash.
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Comment By: Brian Hinz (bphinz)
Date: 2011-08-24 19:59
Message:
I don't know about Laker, but IC5141 does not require LD_LIBRARY_PATH and
even though ldd doesn't show it linking against it I have no doubt that is
the problem. Can you please try to start Xvnc from a clean shell without
LD_LIBRARY_PATH and see if the problem goes away?
Thanks,
-brian
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Comment By: Satya Narayan Mishra (snmishra)
Date: 2011-08-24 19:11
Message:
I am using the build from sourceforge files section. I don't have
LD_ASSUME_KERNEL set. I DO have LD_LIBRARY_PATH set.
Unfortunately, it is not reproducible. What I can I do to get a better
debug dump? Do you have debug symbols available for the binaries?
Alternatively, I can try making a debug build. Is Xvnc simpler to build now
that it is based on the newer Xorg?
ldd shows that only system libraries are used:
ldd Xvnc
libpam.so.0 => /lib64/libpam.so.0 (0x0000003ba5d00000)
libdl.so.2 => /lib64/libdl.so.2 (0x0000003ba4d00000)
librt.so.1 => /lib64/tls/librt.so.1 (0x0000003ba9b00000)
libm.so.6 => /lib64/tls/libm.so.6 (0x0000003ba4b00000)
libc.so.6 => /lib64/tls/libc.so.6 (0x0000003ba4800000)
libpthread.so.0 => /lib64/tls/libpthread.so.0 (0x0000003ba5100000)
libaudit.so.0 => /lib64/libaudit.so.0 (0x0000003ba6300000)
/lib64/ld-linux-x86-64.so.2 (0x0000003ba4400000)
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Comment By: Brian Hinz (bphinz)
Date: 2011-08-24 18:54
Message:
I don't have access to Laker, but I use IC5141 over vnc daily. Can you
check to make sure that LD_LIBRARY_PATH and LD_ASSUME_KERNEL are NOT set in
the shell that you launched Xvnc from? Also, is this reproducible? If so,
please can give me some steps to reproduce it. Did you build Xvnc from
source?
Thanks,
-brian
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Comment By: Satya Narayan Mishra (snmishra)
Date: 2011-08-24 16:11
Message:
I have seen the crash with both Cadence IC 5.1.41 and Springsoft Laker
3.2v4p2.
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Comment By: Brian Hinz (bphinz)
Date: 2011-08-24 15:45
Message:
Which tools cause this crash? I'm using 1.1 with a variety of different
EDA tools and have never seen this.
----------------------------------------------------------------------
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