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SubjectRe: [PATCH]O18.1int
Måns Rullgård, Mon, Aug 25, 2003 12:17:16 +0200:
> Alex Riesen <alexander.riesen@synopsys.COM> writes:
> >> XEmacs still spins after running a background job like make or grep.
> >> It's fine if I reverse patch-O16.2-O16.3. The spinning doesn't happen
> >> as often, or as long time as with O16.3, but it's there and it's
> >> irritating.
> >
> > another example is RXVT (an X terminal emulator). Starts spinnig after
> > it's child has exited. Not always, but annoyingly often. System is
> > almost locked while it spins (calling select).
> It sounds like the same bug. IMHO, it's rather bad, since a
> non-privileged process can make the system unusable for a non-zero
> amount of time.

the source of RXVT looks more like the bug: it does not check for
errors, even though it is a bit tricky to get portably.
It is still a problem, though: "_almost_ locked" does not make it nice.

> How should I do to capture some information about this thing?

Use "top" and look at the dynamic priority.

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