From: Andrew Morton <akpm@digeo.com>
To: john stultz <johnstul@us.ibm.com>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH] linux-2.5.59_lost-tick_A0
Date: Tue, 21 Jan 2003 15:32:55 -0800 [thread overview]
Message-ID: <3E2DD8A7.3F07C40E@digeo.com> (raw)
In-Reply-To: 1043189962.15683.82.camel@w-jstultz2.beaverton.ibm.com
john stultz wrote:
>
> All,
> This patch addresses the following problem: Linux cannot properly
> handle the case where interrupts are disabled for longer then two ticks.
>
Question is: who is holding interrupts off for so long?
It might be better to implement a detection scheme inside
the timer interrupt handler: if the time since last interrupt
exceeds two ticks, whine and drop a backtrace.
That backtrace will point up into the local_irq_enable() in
the offending code, and we can go fix it?
next prev parent reply other threads:[~2003-01-21 23:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-21 22:59 [RFC][PATCH] linux-2.5.59_lost-tick_A0 john stultz
2003-01-21 23:32 ` Andrew Morton [this message]
2003-01-21 23:48 ` john stultz
2003-01-22 5:00 ` Valdis.Kletnieks
2003-01-24 23:13 ` Stephen Hemminger
2003-01-24 23:06 ` john stultz
[not found] <1043189962.15683.82.camel@w-jstultz2.beaverton.ibm.com.suse.lists.linux.kernel>
2003-01-21 23:27 ` Andi Kleen
2003-01-21 23:31 ` john stultz
2003-01-21 23:48 ` Andi Kleen
2003-01-21 23:49 ` john stultz
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