From: Willy Tarreau <w@1wt.eu>
To: Harald Dunkel <harald.dunkel@t-online.de>
Cc: Joe Peterson <joe@skyrush.com>,
linux-kernel@vger.kernel.org, Alan Cox <alan@redhat.com>
Subject: Re: 2.6.25.3: su gets stuck for root
Date: Mon, 2 Jun 2008 07:32:56 +0200 [thread overview]
Message-ID: <20080602053256.GF5609@1wt.eu> (raw)
In-Reply-To: <48438126.3080308@t-online.de>
On Mon, Jun 02, 2008 at 07:12:06AM +0200, Harald Dunkel wrote:
> Hi Joe,
>
> Joe Peterson wrote:
> >Hi Harold,
> >
> >Doing "ps" while hung shows stty in the "T" state. "killall -9 stty"
> >releases it.
> >
>
> Does strace give you the same output if you attach it to the blocking
> stty (strace -p $pid)?
>
> I got
>
>
> :
> ioctl(0, SNDCTL_TMR_START or TCSETS, {B38400 opost isig icanon echo ...}) =
> ? ERESTARTSYS (To be restarted)
> --- SIGTTOU (Stopped (tty output)) @ 0 (0) ---
> --- SIGTTOU (Stopped (tty output)) @ 0 (0) ---
> :
Guys, you should test if "kill -CONT $pid" wakes the process up.
It might be possible that some obscure bug appeared in the tty
code resulting in SIGTTOU sometimes being sent to the caller,
although that seems rather strange :-/
Willy
next prev parent reply other threads:[~2008-06-02 5:33 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-02 1:31 2.6.25.3: su gets stuck for root Joe Peterson
2008-06-02 5:12 ` Harald Dunkel
2008-06-02 5:32 ` Willy Tarreau [this message]
2008-06-02 5:55 ` Joe Peterson
2008-06-02 8:10 ` Alan Cox
2008-06-02 9:01 ` David Newall
2008-06-02 9:20 ` Alan Cox
2008-06-02 10:16 ` Vegard Nossum
2008-06-02 10:39 ` Vegard Nossum
2008-06-02 10:52 ` Alan Cox
2008-06-02 10:57 ` Vegard Nossum
2008-06-02 12:28 ` Alan Cox
2008-06-02 14:31 ` Vegard Nossum
2008-06-02 10:50 ` Alan Cox
2008-06-17 15:32 ` Joe Peterson
2008-06-02 15:26 ` Joe Peterson
2008-06-02 15:51 ` Alan Cox
2008-06-02 16:03 ` Joe Peterson
2008-06-04 14:43 ` Joe Peterson
2008-06-04 15:16 ` Alan Cox
2008-06-04 16:52 ` Joe Peterson
2008-06-04 17:10 ` Alan Cox
2008-06-04 20:32 ` Joe Peterson
2008-06-11 14:04 ` Joe Peterson
2008-06-12 11:52 ` Vegard Nossum
2008-06-14 1:49 ` Joe Peterson
2008-06-14 7:45 ` Vegard Nossum
2008-06-14 17:43 ` Joe Peterson
2008-06-14 20:34 ` Vegard Nossum
2008-06-14 20:52 ` Joe Peterson
2008-06-14 21:26 ` Vegard Nossum
2008-06-14 21:34 ` Joe Peterson
2008-07-02 18:03 ` tty session leader issue (was Re: 2.6.25.3: su gets stuck for root) Joe Peterson
2008-07-02 19:21 ` markus reichelt
2008-07-06 14:08 ` Tim Connors
2008-07-06 16:44 ` Alan Cox
2008-07-06 18:49 ` tty session leader issue [cause now known!] " Joe Peterson
2008-06-02 5:42 ` 2.6.25.3: su gets stuck for root Joe Peterson
-- strict thread matches above, loose matches on Subject: below --
2008-05-13 6:17 Harald Dunkel
2008-05-13 6:47 ` Vegard Nossum
2008-05-13 17:43 ` Harald Dunkel
2008-05-13 19:46 ` Willy Tarreau
2008-05-14 4:55 ` Harald Dunkel
2008-05-14 5:46 ` Willy Tarreau
2008-05-14 7:34 ` Vegard Nossum
2008-05-14 17:05 ` Harald Dunkel
2008-05-14 17:17 ` Vegard Nossum
2008-05-14 17:35 ` Alan Cox
2008-05-18 17:56 ` Harald Dunkel
2008-05-18 17:51 ` Alan Cox
2008-05-20 19:01 ` Harald Dunkel
2008-05-20 19:12 ` david
2008-05-20 20:26 ` Harald Dunkel
2008-05-20 20:38 ` Willy Tarreau
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