PTY bug in 2.6.31-rc3?

PTY bug in 2.6.31-rc3?

[Theodore Ts'o]

Hey Alan,

I'm running 2.6.31-rc3, and twice now over about 36 hours all
pseudo-tty's have stopped working on my system.   Everything else works;
I can fire up gui applications, but starting any new programs that use
pty's will hang.   The only fix seems to be to reboot the system.

I think I remember seeing a similar report, but I thought you said it
had been fixed in -rc3 --- does this ring a bell?

Thanks,

						- Ted

Re: PTY bug in 2.6.31-rc3?

[Mikael Pettersson]

Theodore Ts'o writes:
 > Hey Alan,
 > 
 > I'm running 2.6.31-rc3, and twice now over about 36 hours all
 > pseudo-tty's have stopped working on my system.   Everything else works;
 > I can fire up gui applications, but starting any new programs that use
 > pty's will hang.   The only fix seems to be to reboot the system.
 > 
 > I think I remember seeing a similar report, but I thought you said it
 > had been fixed in -rc3 --- does this ring a bell?

That exact same thing happended to me yesterday. The machine had been
running -rc3 for a couple of hours when console and all ptys hung. It
answered pings and accepted remote logins, but they hung immediately.
C-A-D initiated a reboot but hung.

Saw nothing interesting in the logs after the hard reboot.

/Mikael

Re: PTY bug in 2.6.31-rc3?

[Aneesh Kumar K.V]

On Thu, Jul 16, 2009 at 12:22:01PM -0400, Theodore Ts'o wrote:
> Hey Alan,
> 
> I'm running 2.6.31-rc3, and twice now over about 36 hours all
> pseudo-tty's have stopped working on my system.   Everything else works;
> I can fire up gui applications, but starting any new programs that use
> pty's will hang.   The only fix seems to be to reboot the system.
> 
> I think I remember seeing a similar report, but I thought you said it
> had been fixed in -rc3 --- does this ring a bell?
> 

One problem is already fixed upstream. I have reported that here
http://thread.gmane.org/gmane.linux.kernel/865691. I still have
another bug which i explained in the last email of the above thread

-aneesh