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Message-ID: <473F498D.9090703@unsolicited.net>
Date:	Sat, 17 Nov 2007 20:05:33 +0000
From:	David <david@...olicited.net>
To:	Greg KH <greg@...ah.com>
CC:	Javier Kohen <jkohen@...rs.sourceforge.net>,
	linux-kernel@...r.kernel.org, gregkh@...e.de, stable@...nel.org
Subject: Re: [stable] Soft lockups since stable kernel upgrade to 2.6.23.8

Greg KH wrote:
> On Sat, Nov 17, 2007 at 07:21:35PM +0100, Javier Kohen wrote:
>   
>> I upgraded today from 2.6.23 to 2.6.23.8 and started seeing a lot of
>> these in the logs:
>>     
>
> Can you see if the problem showed up in 2.6.23.2 or .3 to help narrow
> this down?
>   
This is the culprit, reverting fixes the issue.

Cheers
David

--- a/kernel/softlockup.c
+++ b/kernel/softlockup.c
@@ -80,10 +80,11 @@ void softlockup_tick(void)
        print_timestamp = per_cpu(print_timestamp, this_cpu);

        /* report at most once a second */
-       if (print_timestamp < (touch_timestamp + 1) ||
-               did_panic ||
-                       !per_cpu(watchdog_task, this_cpu))
+       if ((print_timestamp >= touch_timestamp &&
+                       print_timestamp < (touch_timestamp + 1)) ||
+                       did_panic || !per_cpu(watchdog_task, this_cpu)) {
                return;
+       }

        /* do not print during early bootup: */
        if (unlikely(system_state != SYSTEM_RUNNING)) {

-
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