linux-kernel - Re: TIOCGWINSZ retuns old pty size after receiving SIGWINCH

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 19 Aug 2008 13:49:06 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ico Doornekamp <lkml@...v.nl>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: TIOCGWINSZ retuns old pty size after receiving SIGWINCH

On Tue, 19 Aug 2008 22:13:11 +0200
Ico Doornekamp <lkml@...v.nl> wrote:

> 
> 
> > 
> > This bug may have been present in released kernels for some time - I
> > think I read in another thread that CPU scheduler changes might have
> > caused it to surface.  Doesn't matter really - we don't want
> > user-visible races like this affecting desktop applications in stable
> > kernels!
> > 
> > Can you please help us to complete this list?
> 
> 2.6.25.9:	good
> 2.6.26-rc1	bad ( +/- 10% of the resizes)
> 2.6.26.2:	still bad ( +/- 10% of the resizes )
> 2.6.27-rc3:	ugly bad ( > 75% of the resizes )
> linux-next	good
> 
> Any other versions to test ?

Current Linus mainline has

commit 8c9a9dd0fa3a269d380eaae2dc1bee39e865fae1
Author: Alan Cox <alan@...hat.com>
Date:   Fri Aug 15 10:39:38 2008 +0100

    tty: remove resize window special case

which might have fixed this after 2.6.27-rc3, so testing
ftp://ftp.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.27-rc3-git6.gz
would be most interesting.

We should hunt down the problem and get 2.6.26.x fixed up too.

Thanks.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/