Your message dated Fri, 22 Mar 2019 01:04:43 +0000
with message-id <[email protected]>
and subject line Bug#925271: fixed in python-btrfs 11-2
has caused the Debian Bug report #925271,
regarding btrfs-space-calculator crashes when using raid5 as either data or
metadata profile
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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misconfiguration somewhere. Please contact [email protected]
immediately.)
--
925271: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=925271
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: python3-btrfs
Version: 11-1
In the upstream issue tracker, an issue was reported about a crash when
using the example program 'btrfs-space-calculator' that is shipped
together with the python-btrfs library:
https://github.com/knorrie/python-btrfs/issues/19
bor@bor-Latitude-E5450:~/src/python-btrfs$ ./bin/btrfs-space-calculator
-m raid0 -d raid5 3T 1T 2T
Traceback (most recent call last):
[...]
File "/home/bor/src/python-btrfs/bin/btrfs/volumes.py", line 192, in
chunk_length_to_dev_extent_length
dev_extent_length = raw_data_bytes // num_data_stripes
ZeroDivisionError: integer division or modulo by zero
This is not nice, since Debian Buster will be the first Debian release
to include this package, and users should be encouraged to explore
possible use cases for the btrfs filesystem.
After researching this, I came up with a >120 line change that fixes the
involved scenarios and makes it more future-proof. But, to have the
program not crash with a minimal fix for this upstream version, it's
sufficient to just do a 2-line workaround:
diff --git a/bin/btrfs-space-calculator b/bin/btrfs-space-calculator
index cb7f8f6..7586c7d 100755
--- a/bin/btrfs-space-calculator
+++ b/bin/btrfs-space-calculator
@@ -54,8 +54,8 @@ class FakeChunk(object):
def __init__(self, flags):
self.type = flags
self.length = 1
- self.stripes = [FakeStripe()]
- self.num_stripes = 1
+ self.stripes = [FakeStripe()] * 4
+ self.num_stripes = 4
Hans
--- End Message ---
--- Begin Message ---
Source: python-btrfs
Source-Version: 11-2
We believe that the bug you reported is fixed in the latest version of
python-btrfs, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Hans van Kranenburg <[email protected]> (supplier of updated python-btrfs
package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Fri, 22 Mar 2019 01:12:12 +0100
Source: python-btrfs
Architecture: source
Version: 11-2
Distribution: unstable
Urgency: medium
Maintainer: Hans van Kranenburg <[email protected]>
Changed-By: Hans van Kranenburg <[email protected]>
Closes: 925267 925271
Changes:
python-btrfs (11-2) unstable; urgency=medium
.
* d/patches: Fix crash because of stray underscores (Closes: #925267)
* d/patches: space-calculator: quickfix crash when using raid5
(Closes: #925271)
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