[ENBD] 2.4.30 problems with big file transfers (1 GB)

[ckoepp]

Hello Peter,

thanks for your quick response.

> > The last thing I did -  I tried NBD Version 2.4.29 and everything works
fine, reading and writing works nearly with the same speed.
>
> Oh, well that is a problem, then. Are you SURE that this is repeatable?

Last night I tried it again and I can say it is repeatable.


> > So I think there is a problem on Version 2.4.30 - any ideas?
>
> Not necessarily a problem. What happens if you use -w 0 (and/or read
> your logs!) on the server?

OK - I tried the Option -w 0 on 2.4.30 and then everything works fine. I'm
little bit confused now, since the enbd-server manpage says "0" is the
default value, so it seeems to be not true? Further I do understand from the
manpage that on using a journaling filesystem ( I use ext3 for the moment)
the value should be greater "0". So what is now recommendable to use? BTW
when I run diff (which delivers no errors) and later fsck, the file and
filesystem, respectively, is not corrupted in both cases (with or without -w
0).

One last question... I saw that you have had a discussion with another
mailinglist member about "Unresolved Symbols" and I run into the same
problems. I wasn't  able to find a solution on your discussion, so any
updates RE: Solutions on this problem?


Regards,
Carsten