On 04.11.18 19:31, Duncan wrote:
[This mail was also posted to gmane.comp.file-systems.btrfs.]
Sebastian Ochmann posted on Sun, 04 Nov 2018 14:15:55 +0100 as
excerpted:
Hello,
I have a btrfs filesystem on a single encrypted (LUKS) 10 TB drive
which stopped working correctly.
Kernel
Thank you very much for the quick reply.
On 04.11.18 14:37, Qu Wenruo wrote:
On 2018/11/4 下午9:15, Sebastian Ochmann wrote:
Hello,
I have a btrfs filesystem on a single encrypted (LUKS) 10 TB drive which
stopped working correctly. The drive is used as a backup drive with zstd
compression
Hello,
I have a btrfs filesystem on a single encrypted (LUKS) 10 TB drive which
stopped working correctly. The drive is used as a backup drive with zstd
compression to which I regularly rsync and make daily snapshots. After I
routinely removed a bunch of snapshots (about 20), I noticed later
with on a daily basis. :)
Best regards
Sebastian
On 22.01.2018 20:08, Chris Mason wrote:
On 01/22/2018 01:33 PM, Sebastian Ochmann wrote:
[ skipping to the traces ;) ]
2866 ffmpeg-mux D
[] btrfs_start_ordered_extent+0x101/0x130 [btrfs]
[] lock_and_cleanup_extent_if_need+0x340/0x380 [btrfs
First off, thank you for all the responses! Let me reply to multiple
suggestions at once in this mail.
On 22.01.2018 01:39, Qu Wenruo wrote:
Either such mount option has a bug, or some unrelated problem.
As you mentioned the output is about 10~50MiB/s, 30s means 300~1500MiBs.
Maybe it's
On 21.01.2018 23:04, Chris Murphy wrote:
On Sun, Jan 21, 2018 at 8:27 AM, Sebastian Ochmann
<ochm...@cs.uni-bonn.de> wrote:
On 21.01.2018 11:04, Qu Wenruo wrote:
The output of "mount" after setting 10 seconds commit interval:
/dev/sdc1 on /mnt/rec type btrfs
(rw,relatime,sp
On 21.01.2018 11:04, Qu Wenruo wrote:
On 2018年01月20日 18:47, Sebastian Ochmann wrote:
Hello,
I would like to describe a real-world use case where btrfs does not
perform well for me. I'm recording 60 fps, larger-than-1080p video using
OBS Studio [1] where it is important that the video stream
Hello,
I would like to describe a real-world use case where btrfs does not
perform well for me. I'm recording 60 fps, larger-than-1080p video using
OBS Studio [1] where it is important that the video stream is encoded
and written out to disk in real-time for a prolonged period of time (2-5
On 31.07.2017 14:08, Austin S. Hemmelgarn wrote:
On 2017-07-31 06:51, Sebastian Ochmann wrote:
Hello,
I have a quite simple and possibly stupid question. Since I'm
occasionally seeing warnings about failed loading of free space cache,
I wanted to clear and rebuild space cache. So I mounted
Hello,
I have a quite simple and possibly stupid question. Since I'm
occasionally seeing warnings about failed loading of free space cache, I
wanted to clear and rebuild space cache. So I mounted the filesystem(s)
with -o clear_cache and subsequently with my regular options which
includes
Hello,
I'm trying to understand how to correctly handle and recover from
degraded RAID1 setups in btrfs. In particular, I don't understand a
behavior I'm seeing which somehow takes part of the advantage away from
the idea of having a RAID for me.
The main issue I have is as follows. I can
volume to some other mountpoint. Sorry for the confusion.
Best regards
Sebastian
On 17.07.2014 01:18, Chris Murphy wrote:
On Jul 16, 2014, at 4:18 PM, Sebastian Ochmann ochm...@informatik.uni-bonn.de
wrote:
Hello,
I'm sharing a btrfs-formatted drive between multiple computers and each
On 16.07.2014 09:53, Liu Bo wrote:
On Tue, Jul 15, 2014 at 11:17:26PM +0200, Sebastian Ochmann wrote:
Hello,
I have a VirtualBox hard drive image which is quite fragmented even
after very light use; it is 1.6 GB in size and has around 5000
fragments (I'm using filefrag to determine the number
Hello,
I'm sharing a btrfs-formatted drive between multiple computers and each
of the machines has a separate home directory on that drive. The root of
the drive is mounted at /mnt/tray and the home directory for machine
{hostname} is under /mnt/tray/Homes/{hostname}. Up until now, I have
Hello,
I have a VirtualBox hard drive image which is quite fragmented even
after very light use; it is 1.6 GB in size and has around 5000 fragments
(I'm using filefrag to determine the number of fragments). Doing a
btrfs fi defrag -f image.vdi reduced the number of fragments to 3749.
Even
Hello,
Sebastian Ochmann posted on Wed, 19 Feb 2014 13:58:17 +0100 as excerpted:
So my question is, why does scrub show a high (i.e. non-zero) value for
no_csum? I never enabled nodatasum or a similar option.
Did you enable nodatacow option? if nodatacow option
Hello everyone,
I have a question: What exactly does the value for no_csum mean when
doing a scrub with the -R option? Example output:
sudo btrfs scrub start -BR /
scrub done for ...
...
csum_errors: 0
verify_errors: 0
no_csum: 70517
csum_discards: 87381
super_errors: 0
...
is finished.(after btrfs_scrub_continue()
finished.)
Reported-by: Sebastian Ochmann ochm...@informatik.uni-bonn.de
Signed-off-by: Wang Shilong wangsl.f...@cn.fujitsu.com
Reviewed-by: Miao Xie mi...@cn.fujitsu.com
---
v3-v4:
by checking @scrub_pause_req, block a scrubber
if we
Hello,
However, if you find such superblocks checksum mismatch very often
during scrub, it maybe
there are something wrong with disk!
I'm sorry, but I don't think there's a problem with my disks because I
was able to trigger the errors that increment the gen error counter
during scrub on a
Hello,
thank you for your input. I didn't know that btrfs keeps the error
counters over mounts/reboots, but that's nice.
I'm still trying to figure out how such a generation error may occur in
the first place. One thing I noticed looking at the btrfs code is that
the generation error
Hello everyone,
when I scrubbed one of my btrfs volumes today, the result of the scrub was:
total bytes scrubbed: 1.27TB with 2 errors
error details: super=2
corrected errors: 0, uncorrectable errors: 0, unverified errors: 0
and dmesg said:
btrfs: bdev /dev/mapper/tray errs: wr 0, rd 0, flush
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