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SubjectRe: Strange Linux behaviour with blocking syscalls and stop signals+SIGCONT
Manfred Spraul wrote:
> 1) I would go further and try ERESTARTSYS: ERESTARTSYS means that the
> kernel signal handler honors SA_RESTART
> 2) At least for the futex functions, it won't be as easy as replacing
> EINTR wiht ERESTARTSYS: the futex functions receive a timeout a the
> parameter, with the duration of the wait call as a parameter. You must
> use ERESTART_RESTARTBLOCK.

Whoa, not so fast. At least the futex syscall but be interruptible by
signals. It is crucial to return EINTR.

--
➧ Ulrich Drepper ➧ Red Hat, Inc. ➧ 444 Castro St ➧ Mountain View, CA ❖

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