From: Thomas Gleixner <tglx@linutronix.de>
To: Don Zickus <dzickus@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>,
linux-kernel@vger.kernel.org, mingo@kernel.org,
akpm@linux-foundation.org, babu.moger@oracle.com,
atomlin@redhat.com, prarit@redhat.com,
torvalds@linux-foundation.org, peterz@infradead.org,
eranian@google.com, acme@redhat.com, ak@linux.intel.com,
stable@vger.kernel.org
Subject: Re: [PATCH V2] kernel/watchdog: fix spurious hard lockups
Date: Fri, 23 Jun 2017 23:50:25 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.20.1706232348020.2234@nanos> (raw)
In-Reply-To: <20170623162907.l6inpxgztwwkeaoi@redhat.com>
On Fri, 23 Jun 2017, Don Zickus wrote:
> Hmm, all this work for a temp fix. Kan, how much longer until the real fix
> of having perf count the right cycles?
Quite a while. The approach is wilfully breaking the user space ABI, which
is not going to happen.
And there is a simpler solution as well, as I said here:
http://lkml.kernel.org/r/alpine.DEB.2.20.1706221730520.1885@nanos
Thanks,
tglx
next prev parent reply other threads:[~2017-06-23 21:50 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-21 14:41 [PATCH V2] kernel/watchdog: fix spurious hard lockups kan.liang
2017-06-21 15:12 ` Thomas Gleixner
2017-06-21 15:47 ` Liang, Kan
2017-06-21 17:40 ` Prarit Bhargava
2017-06-21 17:07 ` Andi Kleen
2017-06-21 19:59 ` Thomas Gleixner
2017-06-21 21:53 ` Thomas Gleixner
2017-06-22 15:33 ` Thomas Gleixner
2017-06-22 15:44 ` Don Zickus
2017-06-22 15:48 ` Liang, Kan
2017-06-23 8:01 ` Thomas Gleixner
2017-06-23 16:29 ` Don Zickus
2017-06-23 21:50 ` Thomas Gleixner [this message]
2017-06-26 20:19 ` Don Zickus
2017-06-26 20:30 ` Thomas Gleixner
2017-06-27 20:12 ` Don Zickus
2017-06-27 20:49 ` Liang, Kan
2017-06-27 21:09 ` Don Zickus
2017-06-27 23:48 ` Andi Kleen
2017-06-28 19:00 ` Don Zickus
2017-06-28 20:14 ` Andi Kleen
2017-06-29 15:44 ` Don Zickus
2017-06-29 16:12 ` Andi Kleen
2017-06-29 16:26 ` Don Zickus
2017-06-29 16:36 ` Andi Kleen
2017-07-17 1:24 ` Liang, Kan
2017-07-17 7:14 ` Thomas Gleixner
2017-07-17 12:18 ` Liang, Kan
2017-07-17 13:13 ` Thomas Gleixner
2017-07-17 14:46 ` Liang, Kan
2017-07-17 15:00 ` Thomas Gleixner
2017-07-17 14:46 ` Don Zickus
2017-08-15 1:16 ` Liang, Kan
2017-08-15 1:28 ` Linus Torvalds
2017-08-15 7:50 ` Thomas Gleixner
2017-08-17 15:45 ` Liang, Kan
2017-08-18 10:39 ` [tip:core/urgent] kernel/watchdog: Prevent false positives with turbo modes tip-bot for Thomas Gleixner
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