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

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Message-ID: <48438840.7050106@skyrush.com>
Date:	Sun, 01 Jun 2008 23:42:24 -0600
From:	Joe Peterson <joe@...rush.com>
To:	Harald Dunkel <harald.dunkel@...nline.de>
CC:	linux-kernel@...r.kernel.org, Alan Cox <alan@...hat.com>
Subject: Re: 2.6.25.3: su gets stuck for root

Harald Dunkel wrote:
> 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) ---

Yep, almost the same.  I get (repeating):

ioctl(0, SNDCTL_TMR_STOP or TCSETSW, {B38400 opost isig icanon echo
...}) = ? ERESTARTSYS (To be restarted)
--- SIGTTOU (Stopped (tty output)) @ 0 (0) ---
--- SIGTTOU (Stopped (tty output)) @ 0 (0) ---


			-Joe
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