From: Andreas Schwab <schwab@linux-m68k.org>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: "linux-kernel\@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: tty breakage in X (Was: tty vs workqueue oddities)
Date: Thu, 02 Jun 2011 11:30:27 +0200 [thread overview]
Message-ID: <m2pqmwpolo.fsf@igel.home> (raw)
In-Reply-To: <1307003821.29297.77.camel@pasglop> (Benjamin Herrenschmidt's message of "Thu, 02 Jun 2011 18:37:01 +1000")
Benjamin Herrenschmidt <benh@kernel.crashing.org> writes:
> It looks like the patch is causing some major malfunctions of the X
> server for me, possibly related to PTYs. For example, cat'ing a large
> file in a gnome terminal hangs the kernel for -minutes- in a loop of
> what looks like flush_to_ldisc/workqueue code, (some ftrace data in the
> quoted bits further down).
Btw., do you already have d72bce0 ("rcu: Cure load woes")? Although
that is about an independent bug, it appears to amplify this issue a
lot.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2011-06-02 9:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-02 7:17 tty vs workqueue oddities Benjamin Herrenschmidt
2011-06-02 8:37 ` tty breakage in X (Was: tty vs workqueue oddities) Benjamin Herrenschmidt
2011-06-02 9:30 ` Andreas Schwab [this message]
2011-06-02 10:07 ` Alan Cox
2011-06-03 0:56 ` Benjamin Herrenschmidt
2011-06-03 6:17 ` Benjamin Herrenschmidt
2011-06-03 6:56 ` Benjamin Herrenschmidt
2011-06-03 9:36 ` Linus Torvalds
2011-06-05 14:37 ` Guillaume Chazarain
2011-06-06 14:24 ` Guillaume Chazarain
2011-06-08 2:44 ` Linus Torvalds
2011-06-08 3:31 ` Linus Torvalds
2011-06-08 8:31 ` Guillaume Chazarain
2011-06-08 8:28 ` Felipe Balbi
2011-06-08 9:04 ` Alan Cox
2011-06-02 10:03 ` tty vs workqueue oddities Alan Cox
-- strict thread matches above, loose matches on Subject: below --
2011-06-03 10:23 tty breakage in X (Was: tty vs workqueue oddities) Milton Miller
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