pipe dumps core on QNX 6.32

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John McClurkin

pipe dumps core on QNX 6.32

Post by John McClurkin » Mon Nov 26, 2007 3:46 pm

Hi,
I installed the non-commercial version of QNX 6.32 on an Intel x86
machine. I enabled hyper threading and I am booting qnxbasesmp.ifs.
After the machine has been up for several days, the pipe command fails.
I can no longer start photon from the command line, I cannot build from
within PhAB, and if I try to run a command like
ps | grep ab
I get an error message saying that a pipe cannot be created. A look at
/var/dumps shows a pipe.core file. Rebooting the machine resolves the
issue for a few days.
Does anyone know of this problem and is there a solution?
Thanks

maschoen

RE: pipe dumps core on QNX 6.32

Post by maschoen » Mon Nov 26, 2007 5:55 pm

I've had a copy of 6.3.2 running for many days without seeing this.
I'm not familiar yet with what can be done with a dump file, but if
you are, you might want to check and see what kind of error caused
the crash. If it was a bus error, it might indicate some kind of
memory problem. Since pipe is loaded at startup, it probably
inhabits the same location every time.

John McClurkin

Re: pipe dumps core on QNX 6.32

Post by John McClurkin » Tue Nov 27, 2007 1:20 pm

maschoen wrote:
I've had a copy of 6.3.2 running for many days without seeing this.
I'm not familiar yet with what can be done with a dump file, but if
you are, you might want to check and see what kind of error caused
the crash. If it was a bus error, it might indicate some kind of
memory problem. Since pipe is loaded at startup, it probably
inhabits the same location every time.
Thanks for your response. The core file had no symbols so I was unable
to see anything with gdb and that's about the extent of my abilities in
that regard. John Garvey did send a new copy of pipe which I installed.
If it runs for a couple of weeks without problem, I'll consider the
problem solved.

maschoen

RE: Re: pipe dumps core on QNX 6.32

Post by maschoen » Tue Nov 27, 2007 3:55 pm

Hopefully that will solve the problem. I'm sure that a dump file
must contain the cause of the abort somewhere.

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