On Fri, Aug 17, 2007 at 11:41:20AM -0400, John Blackwood wrote:
> Hi Neil,
>
> We've been having problems with this select patch change.
>
> Specifically -- previously, when a ptrace attach was done to a task
> blocked in a select() call and that task had a timeout value,
> the task would
Hi Neil,
We've been having problems with this select patch change.
Specifically -- previously, when a ptrace attach was done to a task
blocked in a select() call and that task had a timeout value,
the task would restart the select() call with an updated timeout value.
With this patch in place,
Hi Neil,
We've been having problems with this select patch change.
Specifically -- previously, when a ptrace attach was done to a task
blocked in a select() call and that task had a timeout value,
the task would restart the select() call with an updated timeout value.
With this patch in place,
On Fri, Aug 17, 2007 at 11:41:20AM -0400, John Blackwood wrote:
Hi Neil,
We've been having problems with this select patch change.
Specifically -- previously, when a ptrace attach was done to a task
blocked in a select() call and that task had a timeout value,
the task would restart the
On Tue, Jan 23, 2007 at 09:59:26PM -0800, David Miller wrote:
> From: Neil Horman <[EMAIL PROTECTED]>
> Date: Tue, 16 Jan 2007 15:13:32 -0500
>
> > As it is currently written, sys_select checks its return code to convert
> > ERESTARTNOHAND to EINTR. However, the check is within an if (tvp)
On Tue, Jan 23, 2007 at 09:59:26PM -0800, David Miller wrote:
From: Neil Horman [EMAIL PROTECTED]
Date: Tue, 16 Jan 2007 15:13:32 -0500
As it is currently written, sys_select checks its return code to convert
ERESTARTNOHAND to EINTR. However, the check is within an if (tvp) clause,
and
From: Neil Horman <[EMAIL PROTECTED]>
Date: Tue, 16 Jan 2007 15:13:32 -0500
> As it is currently written, sys_select checks its return code to convert
> ERESTARTNOHAND to EINTR. However, the check is within an if (tvp) clause, and
> so if select is called from userspace with a NULL timeval, then
From: Neil Horman [EMAIL PROTECTED]
Date: Tue, 16 Jan 2007 15:13:32 -0500
As it is currently written, sys_select checks its return code to convert
ERESTARTNOHAND to EINTR. However, the check is within an if (tvp) clause, and
so if select is called from userspace with a NULL timeval, then it
On Mon, Jan 22, 2007 at 11:24:06AM -0500, Neil Horman wrote:
> The error was reported to me second hand. I'm expecting a reproducer
> (although
> to date, I'm still waiting for it, so I may have jumped the gun here). In
> fact,
I've asked for a repoducer weeks ago and nothing happened,
On Mon, Jan 22, 2007 at 08:03:53AM -0800, Linus Torvalds wrote:
>
>
> On Mon, 22 Jan 2007, Neil Horman wrote:
>
> > On Mon, Jan 22, 2007 at 02:59:56PM +0100, Paolo Ornati wrote:
> > >
> > > the ERESTARTNOHAND thing is handled in arch specific signal code,
> >
> > In the signal handling path
On Mon, 22 Jan 2007, Neil Horman wrote:
> On Mon, Jan 22, 2007 at 02:59:56PM +0100, Paolo Ornati wrote:
> >
> > the ERESTARTNOHAND thing is handled in arch specific signal code,
>
> In the signal handling path yes.
Right.
> Not always in the case of select, though. Check core_sys_select:
On Mon, Jan 22, 2007 at 02:59:56PM +0100, Paolo Ornati wrote:
> On Tue, 16 Jan 2007 15:13:32 -0500
> Neil Horman <[EMAIL PROTECTED]> wrote:
>
> > As it is currently written, sys_select checks its return code to convert
> > ERESTARTNOHAND to EINTR. However, the check is within an if (tvp) clause,
On Tue, 16 Jan 2007 15:13:32 -0500
Neil Horman <[EMAIL PROTECTED]> wrote:
> As it is currently written, sys_select checks its return code to convert
> ERESTARTNOHAND to EINTR. However, the check is within an if (tvp) clause, and
> so if select is called from userspace with a NULL timeval, then
On Tue, 16 Jan 2007 15:13:32 -0500
Neil Horman [EMAIL PROTECTED] wrote:
As it is currently written, sys_select checks its return code to convert
ERESTARTNOHAND to EINTR. However, the check is within an if (tvp) clause, and
so if select is called from userspace with a NULL timeval, then it is
On Mon, Jan 22, 2007 at 02:59:56PM +0100, Paolo Ornati wrote:
On Tue, 16 Jan 2007 15:13:32 -0500
Neil Horman [EMAIL PROTECTED] wrote:
As it is currently written, sys_select checks its return code to convert
ERESTARTNOHAND to EINTR. However, the check is within an if (tvp) clause,
and
On Mon, 22 Jan 2007, Neil Horman wrote:
On Mon, Jan 22, 2007 at 02:59:56PM +0100, Paolo Ornati wrote:
the ERESTARTNOHAND thing is handled in arch specific signal code,
In the signal handling path yes.
Right.
Not always in the case of select, though. Check core_sys_select:
No, even
On Mon, Jan 22, 2007 at 08:03:53AM -0800, Linus Torvalds wrote:
On Mon, 22 Jan 2007, Neil Horman wrote:
On Mon, Jan 22, 2007 at 02:59:56PM +0100, Paolo Ornati wrote:
the ERESTARTNOHAND thing is handled in arch specific signal code,
In the signal handling path yes.
Right.
On Mon, Jan 22, 2007 at 11:24:06AM -0500, Neil Horman wrote:
The error was reported to me second hand. I'm expecting a reproducer
(although
to date, I'm still waiting for it, so I may have jumped the gun here). In
fact,
I've asked for a repoducer weeks ago and nothing happened, nobody
As it is currently written, sys_select checks its return code to convert
ERESTARTNOHAND to EINTR. However, the check is within an if (tvp) clause, and
so if select is called from userspace with a NULL timeval, then it is possible
for the ERESTARTNOHAND errno to leak into userspace, which is
As it is currently written, sys_select checks its return code to convert
ERESTARTNOHAND to EINTR. However, the check is within an if (tvp) clause, and
so if select is called from userspace with a NULL timeval, then it is possible
for the ERESTARTNOHAND errno to leak into userspace, which is
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