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From: Johannes Rohr <jorohr@gmail.com>
To: Qu Wenruo <quwenruo.btrfs@gmx.com>, linux-btrfs@vger.kernel.org
Subject: Re: backref mismatch / backpointer mismatch
Date: Thu, 10 Sep 2020 07:36:38 +0200	[thread overview]
Message-ID: <895dd934-8159-e14b-de7a-10fba881d96f@gmail.com> (raw)
In-Reply-To: <f4317021-89e4-904b-6032-10bdfe455450@gmx.com>


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Am 10.09.20 um 04:16 schrieb Qu Wenruo:
>
> On 2020/9/9 下午10:51, Johannes Rohr wrote:

> What about `btrfs check --mode=lowmem` result?

Too late already. After getting the green light in #btrfs, I ran the
--repair and it fixed the issue.

>
> If your btrfs-progs is not uptodate, it may be a false alert.

The reason why I did the offline check in the first place was that there
were issues, namely, that btrfs balance start -musage=70 / resulted in a
segfault and also my attempts to remove a faulty sdd from the RAID
reproducibly led to a kernel oops and a hung filesystem. I had asked
about this two times on the list [1] also reported the issue to the
kernel bugzilla [2]. Also,  upgraded btrfs-progs to 5.7 before running
the test.

Fortunately --repair has fixed these issues.

Cheers,

Johannes


[1] https://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg88916.html

[2] , https://bugzilla.kernel.org/show_bug.cgi?id=209143




>
> Thanks,
> Qu



>> Thanks so much in advance for your advice,
>>
>> Johannes
>>
>>
>>



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      reply	other threads:[~2020-09-10  5:36 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-09 14:51 backref mismatch / backpointer mismatch Johannes Rohr
2020-09-10  2:16 ` Qu Wenruo
2020-09-10  5:36   ` Johannes Rohr [this message]

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