linux-kernel - Re: 2.6.25.3: su gets stuck for root

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Message-ID: <48438126.3080308@t-online.de>
Date:	Mon, 02 Jun 2008 07:12:06 +0200
From:	Harald Dunkel <harald.dunkel@...nline.de>
To:	Joe Peterson <joe@...rush.com>
CC:	linux-kernel@...r.kernel.org, Alan Cox <alan@...hat.com>
Subject: Re: 2.6.25.3: su gets stuck for root

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) ---
:


Regards

Harri

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