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From: Qu Wenruo <quwenruo.btrfs@gmx.com>
To: Vladimir Panteleev <thecybershadow@gmail.com>,
	linux-btrfs@vger.kernel.org
Subject: Re: "kernel BUG" and segmentation fault with "device delete"
Date: Sat, 6 Jul 2019 13:51:38 +0800	[thread overview]
Message-ID: <4a7c1c7b-bc1e-4aba-7a9d-581c0272aa86@gmx.com> (raw)
In-Reply-To: <8c221f86-b550-fcd6-aef1-13570270a559@gmail.com>


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On 2019/7/6 下午1:13, Vladimir Panteleev wrote:
[...]
>> I'm not sure if it's the degraded mount cause the problem, as the
>> enospc_debug output looks like reserved/pinned/over-reserved space has
>> taken up all space, while no new chunk get allocated.
> 
> The problem happens after replace-ing the missing device (which succeeds
> in full) and then attempting to remove it, i.e. without a degraded mount.
> 
>> Would you please try to balance metadata to see if the ENOSPC still
>> happens?
> 
> The problem also manifests when attempting to rebalance the metadata.

Have you tried to balance just one or two metadata block groups?
E.g using -mdevid or -mvrange?

And did the problem always happen at the same block group?

Thanks,
Qu
> 
> Thanks!
> 


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  reply	other threads:[~2019-07-06  5:54 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-05  4:39 "kernel BUG" and segmentation fault with "device delete" Vladimir Panteleev
2019-07-05  7:01 ` Vladimir Panteleev
2019-07-05  9:42 ` Andrei Borzenkov
2019-07-05 10:20   ` Vladimir Panteleev
2019-07-05 21:48     ` Chris Murphy
2019-07-05 22:04       ` Chris Murphy
2019-07-05 21:43 ` Chris Murphy
2019-07-06  0:05   ` Vladimir Panteleev
2019-07-06  2:38     ` Chris Murphy
2019-07-06  3:37       ` Vladimir Panteleev
2019-07-06 17:36         ` Chris Murphy
2019-07-06  5:01 ` Qu Wenruo
2019-07-06  5:13   ` Vladimir Panteleev
2019-07-06  5:51     ` Qu Wenruo [this message]
2019-07-06 15:09       ` Vladimir Panteleev
2019-07-20 10:59       ` Vladimir Panteleev
2019-08-08 20:40         ` Vladimir Panteleev

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