From: Paolo Valente <paolo.valente@linaro.org>
To: Mike Galbraith <efault@gmx.de>
Cc: lkml <linux-kernel@vger.kernel.org>,
linux-block <linux-block@vger.kernel.org>
Subject: Re: block, bfq: NULL pointer dereference in bfq_rq_pos_tree_lookup()
Date: Wed, 12 May 2021 11:49:34 +0200 [thread overview]
Message-ID: <DB1E4403-5102-4D01-A8F6-2F12191F7761@linaro.org> (raw)
In-Reply-To: <abe6426476d4e87bd3977079380bc7c3f508328d.camel@gmx.de>
> Il giorno 8 mag 2021, alle ore 06:49, Mike Galbraith <efault@gmx.de> ha scritto:
>
> On Mon, 2021-05-03 at 14:41 +0200, Mike Galbraith wrote:
>> On Mon, 2021-05-03 at 11:52 +0200, Paolo Valente wrote:
>>> Hi Mike,
>>> I've waited a little bit before replying, because I've worked on a dev
>>> patch series, for debugging another crash. I'd like to use
>>> this series for your failure too, as the OOPS you report
>>> unfortunately does not ring any bell :(
>>>
>>> So, could you please try to apply this patch series? If it doesn't
>>> apply, I'll rebase it.
>>
>> This bug isn't deterministic, but I can wedge your set into my devel
>> trees, and see if anything falls out.
>
> What fell out was not the least bit useful. After days of box working
> just fine despite bug being given ample enticement, it didn't take the
> bait. I then build master sans patch set, which exploded on its very
> first distro build, after which bug (snickered mightily and) went back
> to into hiding.
>
Not easy to debug this way :)
At any rate, I've just posted the fix contained in my debug patch series.
Thanks,
Paolo
> -Mike
>
prev parent reply other threads:[~2021-05-12 9:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <8c38408d27f1032f2a664838e523376c5da09a80.camel@gmx.de>
2021-05-03 9:52 ` block, bfq: NULL pointer dereference in bfq_rq_pos_tree_lookup() Paolo Valente
2021-05-03 12:41 ` Mike Galbraith
2021-05-08 4:49 ` Mike Galbraith
2021-05-12 9:49 ` Paolo Valente [this message]
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