Re: Strange Linux behaviour with blocking syscalls and stop signals+SIGCONT

[Ulrich Drepper <drepper@redhat.com>]

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 ❖

Attachment: signature.asc
Description: OpenPGP digital signature