Re: different oops

Andrea Gelmini
2008-10-10T10:49:53Z

2008/10/10 Andrea Gelmini
<andrea.gelmini@gmail.com>:
> 2008/10/9 Yan Zheng <zheng.yan@oracle.com>:
>> Andrea, did you create swap file on btrfs?
> No, but Azureus (see my other email) plays a lot with holes.

Well, I try to extend my previous reply (in the meanwhile it crashed
again (kernel) with a newly added file).
I''ve got no "unsual" usage of my btrfs partition (is a /home
on a
logical volume, over a dm-crypted /dev/sda3 partition).
The process able to trigger the crash is Azureus.
The "unusual" work of it, respect the other programs I run, is its
creation of file with lots of hole.
When I start to download movies (ehm... iso images of linux
distribution...), it does this:
first chunk (1~4MB) --- big big big holes (for ~1GB) --- last chunk (1~4MB)
then, while downloading, it replaces holes with real data (in a random
way, of course).

Well, I could try to allocate all space at the time creation.
Anyway, today I''ll switch to 2.6.27 and new btrfs layout, so I
postpone this try after.

Thanks a lot for your time,
Andrea