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Re: octave in uninterruptible state on Alpha
From: |
Jim Van Zandt |
Subject: |
Re: octave in uninterruptible state on Alpha |
Date: |
Wed, 28 Aug 1996 08:28:31 -0400 |
Francesco Potorti` <address@hidden> writes:
>one day octave
>stopped and refused to show its first prompt. A ps revealed that
>octave was there, in uninterruptible state. After making some tests,
>I now have some 10 octave processes in that state, and I can do
>nothing to run octave.
Neither you nor the superuser can do "kill -9 XXXX" where XXXX is the
process ID? I thought that was a sure kill.
I assume Octave hangs waiting for some resource to become available.
A pty (pseudo-terminal), maybe. I don't know about the Alpha. Under
sunos, the pty(4) man page says:
In configuring, if no optional ``count'' is given in the
specification, 16 pseudo-terminal pairs are configured.
These would be /dev/ptyp[0-9a-f]. Look for a command like "fuser"
that could tell you which are being used. Maybe you can just make
some more, such as /dev/ptyq[0-9a-f].
Another approach is to install strace, and run Octave under that.
That should tell you which system request hangs.
- Jim Van Zandt