Re: Client deadlock?

On Thu, 31 Mar 2011, Garrett Wollman wrote:

>
> It turns out that even dd(1) hangs it nearly immediately:
>
> $ dd if=/dev/zero of=test bs=64k count=1048576
> load: 0.04  cmd: dd 7375 [afsslp] 17.63r 0.01u 0.45s 0% 1088k
> load: 0.03  cmd: dd 7375 [afsslp] 21.97r 0.01u 0.45s 0% 1088k

Assuming I can do math correctly, that's creating a 64G file; it looks 
like bonnie++ by default will use something like a 2G test file.  Since 
your cache is roughly 1.5G, I am going to go out on a limb and surmise 
that write-on-close() is working okay but earlier writes due to cache 
starvation are not.

Which is kind of unfortunate.

-Ben Kaduk