From: "jistone at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug runtime/20820] another "soft lockup" BUG on RHEL7 ppc64
Date: Thu, 01 Dec 2016 19:29:00 -0000 [thread overview]
Message-ID: <bug-20820-6586-FLPqv2tw0l@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-20820-6586@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=20820
Josh Stone <jistone at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jistone at redhat dot com
--- Comment #14 from Josh Stone <jistone at redhat dot com> ---
Comment on attachment 9682
--> https://sourceware.org/bugzilla/attachment.cgi?id=9682
proposed __stp_init_time() patch
> - write_seqlock(&time->lock);
> + write_seqlock_irqsave(&time->lock, flags2);
> time->base_ns = ns;
> time->base_cycles = cycles;
> - write_sequnlock(&time->lock);
> + write_sequnlock_irqrestore(&time->lock, flags2);
>
> local_irq_restore(flags);
Why do you need to save irq if it's already in a local_irq_save section?
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next prev parent reply other threads:[~2016-12-01 19:29 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-14 18:57 [Bug runtime/20820] New: " dsmith at redhat dot com
2016-11-16 21:26 ` [Bug runtime/20820] " dsmith at redhat dot com
2016-11-18 17:22 ` dsmith at redhat dot com
2016-11-18 19:01 ` dsmith at redhat dot com
2016-11-18 20:15 ` mcermak at redhat dot com
2016-11-24 16:06 ` mcermak at redhat dot com
2016-11-24 17:30 ` fche at redhat dot com
2016-11-28 16:55 ` dsmith at redhat dot com
2016-11-28 17:48 ` mcermak at redhat dot com
2016-11-29 13:47 ` mcermak at redhat dot com
2016-11-29 13:48 ` mcermak at redhat dot com
2016-11-30 19:10 ` dsmith at redhat dot com
2016-12-01 13:04 ` mcermak at redhat dot com
2016-12-01 16:11 ` dsmith at redhat dot com
2016-12-01 16:44 ` dsmith at redhat dot com
2016-12-01 19:29 ` jistone at redhat dot com [this message]
2016-12-01 20:38 ` dsmith at redhat dot com
2016-12-01 20:52 ` jistone at redhat dot com
2016-12-02 15:01 ` mcermak at redhat dot com
2016-12-02 17:30 ` dsmith at redhat dot com
2017-02-08 17:05 ` dsmith at redhat dot com
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