From: Oleg Nesterov <oleg@redhat.com>
To: Jamie Iles <jamie.iles@oracle.com>
Cc: linux-kernel@vger.kernel.org,
Alexander Viro <viro@zeniv.linux.org.uk>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH] signal: protect SIGNAL_UNKILLABLE from unintentional clearing.
Date: Thu, 17 Nov 2016 20:04:20 +0100 [thread overview]
Message-ID: <20161117190420.GA23492@redhat.com> (raw)
In-Reply-To: <20161116125759.4727-1-jamie.iles@oracle.com>
On 11/16, Jamie Iles wrote:
>
> This can result in init becoming stoppable/killable after tracing. For
> example, running:
>
> while true; do kill -STOP 1; done &
> strace -p 1
> and then stopping strace and the kill loop will result in init being
> left in state TASK_STOPPED. Sending SIGCONT to init will resume it, but
> init will now respond to future SIGSTOP signals rather than ignoring
> them.
Yes, and a lot more... I forgot about these problems again.
Jamie, sorry for delay, I'll try to read the patch and reply tomorrow.
Oleg.
next prev parent reply other threads:[~2016-11-17 19:04 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-16 12:57 [PATCH] signal: protect SIGNAL_UNKILLABLE from unintentional clearing Jamie Iles
2016-11-17 19:04 ` Oleg Nesterov [this message]
2016-11-28 12:14 ` Jamie Iles
2016-11-29 14:06 ` Oleg Nesterov
2016-11-29 14:23 ` Jamie Iles
2016-12-01 17:45 ` Oleg Nesterov
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