From: Oleg Nesterov <oleg@redhat.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>,
linux-kernel Mailing List <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: LTP 20080131 causes defunct processes w/2.6.30-rc1 (possible ptrace issue?)
Date: Fri, 10 Apr 2009 14:15:25 +0200 [thread overview]
Message-ID: <20090410121525.GA4760@redhat.com> (raw)
In-Reply-To: <910A25D6-E6E6-4742-B9F4-52532D92117D@kernel.crashing.org>
On 04/10, Kumar Gala wrote:
>
> That seems to clear it up.. But why has the behavior changed? I didn't
> have to do the "kill -CONT 1" on 2.6.29.
I didn't look at the test-case yet, so I don't know what happens.
But, before this comment, /sbin/init always ignored SIGSTOP.
Now it is possible to stop init. Of course, user-space can't
send SIGSTOP to init directly. But if you are ptracer, or send
SIGSTOP to the sub-namespace, it should work.
Oleg.
prev parent reply other threads:[~2009-04-10 12:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-09 15:43 LTP 20080131 causes defunct processes w/2.6.30-rc1 (possible ptrace issue?) Kumar Gala
2009-04-09 16:41 ` Kumar Gala
2009-04-09 19:49 ` Sukadev Bhattiprolu
2009-04-09 20:28 ` Kumar Gala
2009-04-09 21:39 ` Sukadev Bhattiprolu
2009-04-10 0:01 ` Kumar Gala
2009-04-10 1:03 ` Sukadev Bhattiprolu
2009-04-10 5:24 ` Kumar Gala
2009-04-10 12:15 ` Oleg Nesterov [this message]
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