linux-kernel - Re: [5.8RC4][bugreport]WARNING: CPU: 28 PID: 211236 at fs/fuse/file.c:1684 tree

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Message-ID: <30a611e6-f445-494e-dab9-d7a5c17c9889@virtuozzo.com>
Date:   Mon, 13 Jul 2020 12:03:45 +0300
From:   Vasily Averin <vvs@...tuozzo.com>
To:     Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>,
        linux-fsdevel@...r.kernel.org,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        mszeredi@...hat.com
Subject: Re: [5.8RC4][bugreport]WARNING: CPU: 28 PID: 211236 at
 fs/fuse/file.c:1684 tree_insert+0xaf/0xc0 [fuse]

On 7/13/20 11:02 AM, Mikhail Gavrilov wrote:
> On Mon, 13 Jul 2020 at 12:11, Mikhail Gavrilov
> <mikhail.v.gavrilov@...il.com> wrote:
>>
>> On Mon, 13 Jul 2020 at 03:28, Mikhail Gavrilov
>> <mikhail.v.gavrilov@...il.com> wrote:
>>>
>>> Hi folks.
>>> While testing 5.8 RCs I founded that kernel log flooded by the message
>>> "WARNING: CPU: 28 PID: 211236 at fs/fuse/file.c:1684 tree
>>> insert+0xaf/0xc0 [fuse]" when I start podman container.
>>> In kernel 5.7 not has such a problem.
>>
>> Maxim, I suppose you leave `WARN_ON(!wpa->ia.ap.num_pages);` for debug purpose?
>> Now this line is often called when I start the container.
>>
> 
> That odd, but I can't send an email to the author of the commit.
> mpatlasov wasn't found at virtuozzo.com.

Reported problem is not fixed yet in 5.8-rc kernels
Please take look at
https://lkml.org/lkml/2020/7/13/265

Thank you,
	Vasily Averin