[Dovecot] testing needed: log file concurrency

[Philipp Wollermann]

Hi Timo,

Timo Sirainen wrote:
> http://dovecot.org/tmp/concurrency.c
>
> I'd want to know what results this program gives with different systems.
> Please test and reply (but don't bother if someone already replied with
> the same OS+result). I expect it to print:
>
>  - SMP kernels: "page size cut" once in a while
>  - UP (uniprocessor) kernels: Nothing
>  - The most important thing is that it never prints "broken data"
>   
Linux 2.6.20-16-server (SMP), Core 2 Duo E6600:
Only one reader: No output
Three readers: After a few minutes "Page size cut" printed by one of them

Linux 2.6.18-028stab027 (UP), Athlon 64 3700+:
Never outputs anything.

Regards,
Philipp