Re: reiser4: BUG during a backup (sequentially reading the whole fs) on 4.9

[Ivan Shapovalov <intelfx@intelfx.name>]

[-- Attachment #1: Type: text/plain, Size: 1175 bytes --]

Uh, I don't know exactly which partition is it. Strangely, I could not
reproduce this with a mock-up load (find -exec cat {} \; >/dev/null),
but odds are that it usually happens while reading a half-filled 500GB
partition.

Anyhow, I can put it on my public-facing NAS and give you either a
download link (my uplink is 50 Mbps wide) or ssh access, if you would
be kind enough to have a look at it :)

BTW, if I enable checkpoints in borg (so it saves internal state
periodically) and restart the backup from a checkpoint after the crash,
it always finishes successfully. Does that confirm or refute your
hypothesis?

Thanks,
-- 
Ivan Shapovalov / intelfx /


On 2017-06-02 at 23:37 +0300, Edward Shishkin wrote:
> Alas, can not reproduce it.
> I suspect garbage on the leaf level. For some reasons
> fsck can not detect it (on semantic pass).
> How big is your partition?
> Could you dd it to a file and let me download that file?
> 
> Thanks,
> Edward.
> 
> On 06/02/2017 01:59 AM, Ivan Shapovalov wrote:
> > Looking forward to your results.
> > 
> > And by "looking at the tree" you mean the debugfs output, right?
> > 
> > Thanks,
> 
> 

[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 833 bytes --]