From: Oleg Nesterov <oleg@tv-sign.ru>
To: Valdis.Kletnieks@vt.edu
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Andrew Morton <akpm@linux-foundation.org>,
roland@redhat.com, linux-kernel@vger.kernel.org,
Pavel Emelyanov <xemul@openvz.org>,
Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>,
Alan Cox <alan@lxorguk.ukuu.org.uk>
Subject: tty && pid problems
Date: Wed, 20 Feb 2008 19:18:23 +0300 [thread overview]
Message-ID: <20080220161823.GB146@tv-sign.ru> (raw)
In-Reply-To: <23492.1203464394@turing-police.cc.vt.edu>
(Change the subject, cc Alan)
On 02/19, Valdis.Kletnieks@vt.edu wrote:
>
> On Sun, 17 Feb 2008 21:11:14 MST, Eric W. Biederman said:
> > Oleg Nesterov <oleg@tv-sign.ru> writes:
> > > On 02/16, Oleg Nesterov wrote:
> > >> On 02/15, Andrew Morton wrote:
> > >> > : BUG: unable to handle kernel paging request at 0000000000200200
>
> > >> > : Call Trace:
> > >> > : [<ffffffff80237727>] ? release_task+0x152/0x2e5
> > >> > : [<ffffffff80237f81>] ? do_wait+0x6c7/0xa1c
> > >> > : [<ffffffff8022f4cc>] ? default_wake_function+0x0/0xe
> > >> > : [<ffffffff8023e670>] ? sys_rt_sigaction+0x7a/0x98
> > >> > : [<ffffffff80238360>] ? sys_wait4+0x8a/0xa1
> > >> > : [<ffffffff8020be4b>] ? system_call_after_swapgs+0x7b/0x80
>
> > Thanks. Looks like we need to grab a lock there.
> > At a quick skim I think we need the tty lock.
>
> *ping* - Any further activity on this one? I got bit by it as well on
> the very first attempted boot of 25-rc2-mm1, the instant it tried to leave
> single-user and go multi-user.
Valdis, any chance you can try the
"[PATCH] (for -mm only) put_pid: make sure we don't free the live pid"
I sent? just to make sure we don't have other problems here.
Oleg.
next prev parent reply other threads:[~2008-02-20 16:36 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-02-15 18:02 [PATCH] do_signal_stop: use signal_group_exit() Oleg Nesterov
2008-02-16 3:37 ` Andrew Morton
2008-02-16 14:02 ` Oleg Nesterov
2008-02-17 23:10 ` Oleg Nesterov
2008-02-18 4:11 ` Eric W. Biederman
2008-02-19 23:39 ` Valdis.Kletnieks
2008-02-20 16:14 ` [PATCH] (for -mm only) put_pid: make sure we don't free the live pid Oleg Nesterov
2008-02-20 16:18 ` Oleg Nesterov [this message]
2008-02-20 16:19 ` tty && pid problems Alan Cox
2008-02-22 1:39 ` Eric W. Biederman
2008-02-22 9:37 ` Alan Cox
2008-02-20 16:28 ` Oleg Nesterov
2008-02-20 19:00 ` Jiri Slaby
2008-02-20 2:32 ` [PATCH] do_signal_stop: use signal_group_exit() Eric W. Biederman
2008-02-16 15:09 ` [PATCH] free_pidmap: turn it into free_pidmap(struct upid *) Oleg Nesterov
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