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From: Steve McIntyre <steve@einval.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: Jann Horn <jannh@google.com>,
	John Johansen <john.johansen@canonical.com>,
	Sasha Levin <sashal@kernel.org>,
	stable@vger.kernel.org, 963493@bugs.debian.org
Subject: Re: Repeatable hard lockup running strace testsuite on 4.19.98+ onwards
Date: Fri, 26 Jun 2020 16:20:34 +0100	[thread overview]
Message-ID: <20200626152034.GA2950@unset.einval.com> (raw)
In-Reply-To: <20200626134518.GB32542@unset.einval.com>

On Fri, Jun 26, 2020 at 02:45:18PM +0100, Steve McIntyre wrote:
>Hey Greg,
>
>On Fri, Jun 26, 2020 at 03:41:32PM +0200, Greg KH wrote:
>>On Fri, Jun 26, 2020 at 12:35:58PM +0100, Steve McIntyre wrote:
>>> 
>>> e58f543fc7c0926f31a49619c1a3648e49e8d233 is the first bad commit
>>> commit e58f543fc7c0926f31a49619c1a3648e49e8d233
>>> Author: Jann Horn <jannh@google.com>
>>> Date:   Thu Sep 13 18:12:09 2018 +0200
>
>...
>
>>> Annoyingly, I can't reproduce this on my disparate other machines
>>> here, suggesting it's maybe(?) timing related.
>>> 
>>> Hope this helps - happy to give more information, test things, etc.
>>
>>So if you just revert this one patch, all works well?
>
>Correct.
>
>>I've added the authors of the patch to the cc: list...
>>
>>Also, does this problem happen on Linus's tree?
>
>Just building to check that now...

Current head here (3e08a95294a4fb3702bb3d35ed08028433c37fe6) works fine.

-- 
Steve McIntyre, Cambridge, UK.                                steve@einval.com
The two hard things in computing:
 * naming things
 * cache invalidation
 * off-by-one errors                  -- Stig Sandbeck Mathisen


  reply	other threads:[~2020-06-26 15:21 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-26 11:35 Repeatable hard lockup running strace testsuite on 4.19.98+ onwards Steve McIntyre
2020-06-26 13:41 ` Greg KH
2020-06-26 13:45   ` Steve McIntyre
2020-06-26 15:20     ` Steve McIntyre [this message]
2020-06-26 14:25   ` Jann Horn
2020-06-26 16:50     ` Steve McIntyre
2020-06-26 17:29       ` John Johansen
2020-06-26 19:01         ` Steve McIntyre
2020-06-26 19:57           ` Sasha Levin
2020-06-26 17:52       ` Steve McIntyre
2020-06-26 18:27         ` Jann Horn

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