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Re: EINTR
From: |
Paolo Bonzini |
Subject: |
Re: EINTR |
Date: |
Tue, 05 Jul 2011 10:17:56 +0200 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.17) Gecko/20110428 Fedora/3.1.10-1.fc15 Mnenhy/0.8.3 Thunderbird/3.1.10 |
On 07/03/2011 06:28 PM, Bastien ROUCARIES wrote:
> On Sun, Jul 3, 2011 at 5:36 PM, Bruno Haible<address@hidden> wrote:
>> Hi all,
>>
>> I wrote:
>>> ... in programs that don't install signal handlers, EINTR ... also occurs in
>>> MacOS X!
>>
>> It is worse than that:
>>
>> 1) Even on Linux, even when the signal handlers have the SA_RESTART flag set,
>> some system call (like msgrcv(), but not read()) can fail with EINTR.
>> See [1].
>
> Report to vger al viro and alan cox have fixed problem like this
> sometime ago. It is considered backported to stable
Not if it is documented I guess:
msgrcv() is never automatically
restarted after being interrupted by a signal handler, regardless of
the setting of the SA_RESTART flag when establishing a signal han‐
dler.
Paolo
- good place for blogging on C/POSIX programming?, Bruno Haible, 2011/07/02
- Re: good place for blogging on C/POSIX programming?, Paul Eggert, 2011/07/02
- Re: good place for blogging on C/POSIX programming?, Ralf Wildenhues, 2011/07/02
- EINTR, Bruno Haible, 2011/07/03
- Re: EINTR, Bruno Haible, 2011/07/03
- Re: EINTR, Bastien ROUCARIES, 2011/07/03
- Re: EINTR,
Paolo Bonzini <=
- Re: EINTR, Bastien ROUCARIES, 2011/07/05
- Re: EINTR, Bruno Haible, 2011/07/05
Re: good place for blogging on C/POSIX programming?, Karl Berry, 2011/07/02