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Bug#869149: marked as done (linux: please merge Btrfs: fix early ENOSPC due to delalloc)



Your message dated Mon, 25 Sep 2017 03:06:05 +0100
with message-id <1506305165.2852.73.camel@decadent.org.uk>
and subject line Re: Bug#869149: linux: please merge Btrfs: fix early ENOSPC due to delalloc
has caused the Debian Bug report #869149,
regarding linux: please merge Btrfs: fix early ENOSPC due to delalloc
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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869149: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=869149
Debian Bug Tracking System
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--- Begin Message ---
Source: linux
Version: 4.9.30-2+deb9u2
Severity: normal


Hey Ben, et al.

There seems to be an annoying bug in btrfs, as described here:
https://www.spinics.net/lists/linux-btrfs/msg67479.html

It's not really extremely critical as it causes no direct fs corruption,
but it gives spurious ENOSPC in case of heavy metadata operation,
even though plenty of space is left.

It affects stretch kernels as well as the current 4.12.


It can e.g. easily be hit, when copying a root-fs, as described in the
thread above.

There's a fix, which seems to work:
https://patchwork.kernel.org/patch/9829593/

Omar will mark it for linux-stable, I'm just reporting it here as well
to make sure that it doesn't get lost :-)


Best wishes,
Chris

--- End Message ---
--- Begin Message ---
Version: 4.9.47-1

This was applied upstream and in 4.9-stable:

v4.9.42: 3a63729427ac Btrfs: fix early ENOSPC due to delalloc

Ben.

-- 
Ben Hutchings
If the facts do not conform to your theory, they must be disposed of.

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