lkml.org 
[lkml]   [2012]   [Jan]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Updated btrfs/crypto snappy interface ready for merging
Andi Kleen wrote:
>> It's because decompressing inline extents always fails. I've fixed it
>> and will send the patch out in a new mail thread.
>
> Thanks for fixing.
>
>>
>> But seems there's bug in lib snappy code, which makes the decompressed
>> data doesn't quite match the original data.
>>
>> Simply copy a file to a btrfs filesystem with snappy enabled, and clear
>> page cache, and check the file:
>
> Hmm weird, I have never seen this. Do you have a reproducer?
>

Just use some randomly chosen text files. For example:

# mount -t btrfs -o compress=snappy /dev/xxx /mnt
# cp -r btrfs-progs-unstable/ /mnt
# sync
# echo 3 > /proc/sys/vm/drop_caches
# diff -Nurp btrfs-progs-unstable /mnt/btrfs-progs-unstable

I've tested on both x86_32 and x86_64.

> The basic compression code is quite well tested, I have a reasonable
> unit test.
>


\
 
 \ /
  Last update: 2012-01-17 09:57    [W:0.044 / U:25.992 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site