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[Help-smalltalk] Good/bad news on the segmentation violation and hangups
From: |
Paolo Bonzini |
Subject: |
[Help-smalltalk] Good/bad news on the segmentation violation and hangups |
Date: |
Thu, 7 Feb 2002 10:58:32 +0100 |
Good news: I've found the cause of the segmentation violation: it's two
stupid mistakes on my part. 1) I was not protecting well enough the queue
of semaphores to be signalled and this caused sharing problems. 2) I was
stupidly reallocating the array of `struct pollfd's under the
filePollingHandler's feet. Both of these are fixed.
Bad news: the cause of the hangups is much worse than I thought: Linux does
not generate SIGIO when output is possible for tty devices!!! I guess the
only possibility is to do output by polling repeatedly, and input using
SIGIO/SIGURG.
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|_)(_)| ),'
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- [Help-smalltalk] Good/bad news on the segmentation violation and hangups,
Paolo Bonzini <=