From: Ingo Molnar <mingo@elte.hu>
To: Andrew Morton <andrewm@uow.edu.au>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Keith Owens <kaos@ocs.com.au>,
lkml <linux-kernel@vger.kernel.org>
Subject: Re: [patch] serial console vs NMI watchdog
Date: Sun, 11 Mar 2001 08:44:24 +0100 (CET) [thread overview]
Message-ID: <Pine.LNX.4.30.0103110841110.987-100000@elte.hu> (raw)
In-Reply-To: <3AA8E6E5.A4AD5035@uow.edu.au>
Andrew,
your patch looks too complex, and doesnt cover the case of the serial
driver deadlocking. Why not add a "touch_nmi_watchdog_counter()" function
that just changes last_irq_sums instead of adding locking? This way
deadlocks will be caught in the serial code too. (because touch_nmi() will
only "postpone" the NMI watchdog lockup event, not disable it.) This
should be a matter of 5 lines ...
Ingo
next prev parent reply other threads:[~2001-03-11 7:46 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-09 14:21 [patch] serial console vs NMI watchdog Andrew Morton
2001-03-09 16:35 ` Ion Badulescu
2001-03-10 2:41 ` Andrew Morton
2001-03-09 22:23 ` Robert Read
2001-03-11 7:44 ` Ingo Molnar [this message]
2001-03-11 7:52 ` Keith Owens
2001-03-11 7:53 ` Ingo Molnar
2001-03-11 8:00 ` Keith Owens
2001-03-11 8:16 ` Andrew Morton
2001-03-11 9:01 ` [patch] nmi-watchdog-2.4.2-A1 Ingo Molnar
2001-03-11 10:08 ` Andrew Morton
2001-03-11 15:04 ` [patch] nmi-watchdog-2.4.2-A2 Ingo Molnar
2001-03-12 4:43 ` [patch] serial console vs NMI watchdog george anzinger
2001-03-12 5:52 ` Keith Owens
2001-03-12 8:27 ` george anzinger
2001-03-12 8:41 ` Keith Owens
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