Hi Matthias
On Fri, 23 Jul 2004 15:46:59 +0200 Matthias Andree <matthias.andree@gmx.de> wrote:
Tim Southerwood <ts@doc.ic.ac.uk> writes:
Now that's very interesting. I shall examine this in more detail. All our Solaris servers have the same setup and I didn't do it - so my initial thought was "Solaris must be weird"!
Do you have anything different in your 2.8 solaris server?
Good question. Not that I know of - for the test was conducted in a LAN that isn't mine, I've masked the IP addresses and hostnames:
Sun Microsystems Inc. SunOS 5.8 Generic February 2000 bash-2.05$ cat /etc/dfs/dfstab [...comments snipped...] share -F nfs -o rw=@XXX.XXX.XXX.XXX/26 /space share -F nfs -o ro=@XXX.XXX.XXX.XXX/26 /opt
bash-2.05$ uname -a SunOS somehost 5.8 Generic_117350-04 sun4u sparc SUNW,Ultra-5_10
Well ours are behind on some patches:
SunOS buzzard.doc.ic.ac.uk 5.8 Generic_108528-27 sun4u sparc SUNW,Sun-Fire-280R
Are your nlockmgrs running? All relevant patches installed? The machines I tested on have been fully patched up two days before the test-- "pgrep lockd" and "rpcinfo -p" on client and server should tell you.
Yes, they are all happy.
At any rate, I don't think Solaris fcntl-style file locking is broken.
I beg to differ - at least it looks like there *was* a bug which may have been cleared by a patch that you have that we don't. I'll pass this to our Solaris admin. Also, I have turned up quite a lot of problems with F_SETLKW on the samba lists - seems to be a common problem with Solaris servers. I'll have a look on the Sun lists and see if there is a patch specifically for this.
Anyrate, one of two conclusions:
It's not dovecot's fault, which is fair, and this bug should be dropped as not a bug.
It's not really a bug with dovecot, but if F_SETLKW fails, dovecot should fall back to something involving F_SETLK.
I prefer number 2) as a user as it's clear to me that there is some brokenness on NFS servers in the world and it would be to the greater good if dovecot were more forgiving.
Cheers
Tim
-- Tim J Southerwood Senior Programmer