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From: David Miller <davem@davemloft.net>
To: johnpol@2ka.mipt.ru
Cc: borntrae@de.ibm.com, netdev@vger.kernel.org
Subject: Re: Netchannles: first stage has been completed. Further ideas.
Date: Tue, 18 Jul 2006 14:20:16 -0700 (PDT)	[thread overview]
Message-ID: <20060718.142016.124082348.davem@davemloft.net> (raw)
In-Reply-To: <20060718191137.GB28540@2ka.mipt.ru>

From: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Date: Tue, 18 Jul 2006 23:11:37 +0400

> Actually userspace will not see ERESTARTSYS, when it is returned from
> syscall.

This is true only when a signal is pending.

It is the signal dispatch code that fixes up the return value
either by changing it to -EINTR or by resetting the register
state such that the signal handler returns to re-execute the
system call with the original set of argument register values.

If a signal is not pending, you risk leaking ERESTARTSYS to
userspace.

  reply	other threads:[~2006-07-18 21:19 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-18  8:16 Netchannles: first stage has been completed. Further ideas Evgeniy Polyakov
2006-07-18  8:34 ` David Miller
2006-07-18  8:50   ` Evgeniy Polyakov
2006-07-18 11:16 ` Christian Borntraeger
2006-07-18 11:51   ` Evgeniy Polyakov
2006-07-18 12:36     ` Christian Borntraeger
2006-07-18 19:11       ` Evgeniy Polyakov
2006-07-18 21:20         ` David Miller [this message]
2006-07-18 12:15 ` Jörn Engel
2006-07-18 19:08   ` Evgeniy Polyakov
2006-07-19 11:00     ` Jörn Engel
2006-07-20  7:42       ` Evgeniy Polyakov
2006-07-18 23:01 ` Alexey Kuznetsov
2006-07-19  0:39   ` David Miller
2006-07-19  5:38   ` Evgeniy Polyakov
2006-07-19  6:30     ` Evgeniy Polyakov
2006-07-19 13:19     ` Alexey Kuznetsov
2006-07-20  7:32       ` Evgeniy Polyakov
2006-07-20 16:41         ` Alexey Kuznetsov
2006-07-20 21:08           ` Evgeniy Polyakov
2006-07-20 21:21             ` Ben Greear
2006-07-21  7:19               ` Evgeniy Polyakov
2006-07-21  7:20                 ` Evgeniy Polyakov
2006-07-21 16:14                 ` Ben Greear
2006-07-21 16:27                   ` Evgeniy Polyakov
2006-07-22 13:23                   ` Caitlin Bestler
2006-07-20 21:40             ` Ian McDonald
2006-07-21  7:26               ` Evgeniy Polyakov
2006-07-20 22:59             ` Alexey Kuznetsov
2006-07-21  4:55               ` David Miller
2006-07-21  7:10                 ` Evgeniy Polyakov
2006-07-21  7:47                   ` David Miller
2006-07-21  9:06                     ` Evgeniy Polyakov
2006-07-21  9:19                       ` David Miller
2006-07-21  9:39                         ` Evgeniy Polyakov
2006-07-21  9:46                           ` David Miller
2006-07-21  9:55                             ` Evgeniy Polyakov
2006-07-21 16:26                 ` Rick Jones
2006-07-21 20:57                   ` David Miller
2006-07-19 19:52   ` Stephen Hemminger
2006-07-19 20:01     ` David Miller
2006-07-19 20:16       ` Stephen Hemminger
2006-07-24 18:54       ` Stephen Hemminger
2006-07-24 20:52         ` Alexey Kuznetsov
2006-07-27  2:17   ` Rusty Russell
2006-07-27  5:17     ` David Miller
2006-07-27  5:46       ` Rusty Russell
2006-07-27  6:00         ` David Miller
2006-07-27 18:54           ` Stephen Hemminger
2006-07-28  8:21             ` David Miller
2006-07-28  5:54           ` Rusty Russell
2006-08-01  4:47             ` David Miller
2006-08-01  6:36               ` Rusty Russell
2006-07-27 16:33         ` Alexey Kuznetsov
2006-07-27 16:51           ` Evgeniy Polyakov
2006-07-27 20:56             ` Alexey Kuznetsov
2006-07-28  5:17               ` Evgeniy Polyakov
2006-07-28  5:34                 ` David Miller
2006-07-28  5:47                   ` Evgeniy Polyakov
2006-07-28  4:49           ` Rusty Russell

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