Blocked process

[Kostik Belousov]

On Thu, Aug 20, 2009 at 12:35:46PM +0100, Bob Bishop wrote:
> 
> On 20 Aug 2009, at 12:06, Daniel O'Connor wrote:
> 
> >On Thu, 20 Aug 2009, Daniel O'Connor wrote:
> >>On Thu, 20 Aug 2009, Bob Bishop wrote:
> >>>On 20 Aug 2009, at 08:25, Daniel O'Connor wrote:
> >>>>This is running in 6.2 ish using 4BSD, I was under the impression
> >>>>ULE wasn't very stable in 6.2.
> >>>>
> >>>>I could probably try it though...
> >>>
> >>>Hmm. ISTR having similar problems around the 6.1-2 era. You might
> >>>try 6.4 if that's possible for you.
> >>
> >>Someone is going to visit it, but if I can't solve it remotely I'll
> >>probably just update it to 7.2 or so.
> >
> >What sort of problems did you have BTW?
> 
> Things like ls on the console might take several seconds to respond  
> when the box didn't seem to be very busy (but wasn't idle, maybe  
> serving a little NFS). It wasn't the shell getting swapped out or  
> anything else obvious. This was on SMP, not using X. The problem went  
> away with 6.4R (had to stay with 6.x for unrelated reasons).

6.1 was released with a bug in NFS server, causing serious slowdown
when non-MPSAFE fs was exported.
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