From: Martin Waitz <tali@admingilde.org>
To: "Richard B. Johnson" <linux-os@analogic.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: System call v.s. errno
Date: Wed, 4 May 2005 15:55:37 +0200 [thread overview]
Message-ID: <20050504135537.GE3562@admingilde.org> (raw)
In-Reply-To: <Pine.LNX.4.61.0505040849150.8743@chaos.analogic.com>
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hoi :)
On Wed, May 04, 2005 at 09:22:09AM -0400, Richard B. Johnson wrote:
> Does anybody know for sure if global 'errno' is supposed to
> be altered after a successful system call? I'm trying to
> track down a problem where system calls return with EINTR
> even though all signal handlers are set with SA_RESTART in
> the flags.
syscalls are only automatically restarted by the interrupt if the
syscall returns -ERESTARTSYS. If it returns -EINTR itself then that will
be delivered to userspace even when it sets SA_RESTART.
--
Martin Waitz
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next prev parent reply other threads:[~2005-05-04 13:55 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-04 13:22 System call v.s. errno Richard B. Johnson
2005-05-04 13:30 ` Måns Rullgård
2005-05-04 13:41 ` Wichert Akkerman
2005-05-04 13:42 ` Jakub Jelinek
2005-05-04 13:49 ` Richard B. Johnson
2005-05-04 16:03 ` Stephen Hemminger
2005-05-04 13:55 ` Martin Waitz [this message]
2005-05-04 14:22 ` Arjan van de Ven
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