Cyrus Deadblocking

[Henrique de Moraes Holschuh]

On Mon, 15 Dec 2008, Patrick Boutilier wrote:
> Henrique de Moraes Holschuh wrote:
> > On Mon, 15 Dec 2008, Teresa wrote:
> >> since yesterday i have strange behavier of my productive mail server, and i
> >> cannt find the reason for 2 days allready.
> > 
> > Which kernel?  If it is Linux 2.6.27.8 or 2.6.27.9, try downgrading...
> 
> What is wrong with those kernels?

The lack of this:
http://lkml.indiana.edu/hypermail/linux/kernel/0812.1/00998.html

Thread here:
http://lkml.indiana.edu/hypermail/linux/kernel/0812.1/index.html#00006

2.6.27.10 will be much better.  I am not touching 2.6.27 at all until it is
out (still running 2.6.26.y here), but probably I won't consider it until it
reaches 2.6.27.12 or thereabouts.

No, I am not sure it would break Cyrus IMAP.  But one doesn't let Cyrus IMAP
anywhere near a kernel that is suspect of less than pristine shared memory
or mmap behaviour, it would be the same as walking around with dead fish in
a basket, near a bunch of starved cats.

-- 
  "One disk to rule them all, One disk to find them. One disk to bring
  them all and in the darkness grind them. In the Land of Redmond
  where the shadows lie." -- The Silicon Valley Tarot
  Henrique Holschuh