dovecot - Oct 2012 - Out of memory/Managesieve

Hello,

I have here a problem with managesieve. With the login about
webmail (roundcube) comes here in the log:

--snip
dovecot: managesieve-login: Fatal: pool_system_realloc(4294967296): 
Out of memory
dovecot: managesieve-login: Fatal: master: service(managesieve-login): 
child 10157 returned error 83 (Out of memory (service 
managesieve-login { vsz_limit=1024 MB }, you may need to increase it))
--snap
I've increased of 2048M and the same above.
then with 4096 M happens the following

--snip
dovecot: managesieve-login: Panic: epoll_ctl(add, 61538840) failed: 
Bad file descriptor
dovecot: managesieve-login: Fatal: master: service(managesieve-login): 
child 9777 killed with signal 6 (core dumps disabled)
--snap

How can one solve then this?
Any ideas greatly appreciated. Thanks.

-- 
Mit freundlichen Gr??en,
with kind regards,
Jim Knuth
---------
Backup interessiert niemanden - Auf Restore kommt es an!

am 29.10.12 16:23 schrieb Jim Knuth <jk at jkart.de>:
> Hello,
>
> I have here a problem with managesieve. With the login about
> webmail (roundcube) comes here in the log:
>
> --snip
> dovecot: managesieve-login: Fatal: pool_system_realloc(4294967296):
> Out of memory
> dovecot: managesieve-login: Fatal: master: service(managesieve-login):
> child 10157 returned error 83 (Out of memory (service
> managesieve-login { vsz_limit=1024 MB }, you may need to increase it))
> --snap
> I've increased of 2048M and the same above.
> then with 4096 M happens the following
>
> --snip
> dovecot: managesieve-login: Panic: epoll_ctl(add, 61538840) failed:
> Bad file descriptor
> dovecot: managesieve-login: Fatal: master: service(managesieve-login):
> child 9777 killed with signal 6 (core dumps disabled)
> --snap
>
> How can one solve then this?
> Any ideas greatly appreciated. Thanks.
>
Sorry, I've forgotten. OS Debian stable and
Dovecot 2.1.

-- 
Mit freundlichen Gr??en,
with kind regards,
Jim Knuth
---------
Nicht Absicht unterstellen, wenn auch Dummheit ausreicht!

On 29.10.2012, at 17.23, Jim Knuth wrote:
> I have here a problem with managesieve. With the login about
> webmail (roundcube) comes here in the log:
You can always easily reproduce this? Can you get the network traffic logs
between Roundcube and Dovecot and reproduce it by sending those same commands
manually?
> --snip
> dovecot: managesieve-login: Fatal: pool_system_realloc(4294967296): Out of
memory
> dovecot: managesieve-login: Fatal: master: service(managesieve-login):
child 10157 returned error 83 (Out of memory (service managesieve-login {
vsz_limit=1024 MB }, you may need to increase it))
Looks like there's a bug somewhere.. Doesn't it log a "raw
backtrace"?
> --snap
> I've increased of 2048M and the same above.
> then with 4096 M happens the following
> 
> --snip
> dovecot: managesieve-login: Panic: epoll_ctl(add, 61538840) failed: Bad
file descriptor
> dovecot: managesieve-login: Fatal: master: service(managesieve-login):
child 9777 killed with signal 6 (core dumps disabled)
> --snap
Probably related to the first error. It would be helpful to get gdb backtraces
from both of them, although from the first one you couldn't without patching
+ recompiling Dovecot. But from the second one I think you can get a core dump
with:

service managesieve-login {
  executable = managesieve-login -D
}

Then you can do something like:

gdb /usr/lib/dovecot/managesieve-login /var/run/dovecot/login/core
bt full