Hi, I've been running a Debian-Jessie backported 4.4 kernel for the last few days, and I can confirm the same issue happening with this kernel as well.
Regards, Luis El vie., 11 mar. 2016 a las 9:01, Luis Ugalde (<forondar...@gmail.com>) escribió: > El vie., 11 mar. 2016 a las 2:08, Timo Sirainen (<t...@iki.fi>) escribió: > >> On 11 Mar 2016, at 03:48, Luis Ugalde <forondar...@gmail.com> wrote: >> > >> > Hi, >> > >> > I'm starting to see, on a pretty standard Debian Jessie installation, >> some >> > error messages that are apparently related to the ETOOMANYREFS errno. >> > >> > Firstly, the mail log shows this: >> > dovecot: pop3-login: Error: fd_send(pop3, 18) failed: Too many >> references: >> > cannot splice >> >> Apparently because Linux thinks the same fd has been passed around >> recursively too many times: >> http://lkml.iu.edu/hypermail/linux/kernel/1101.0/01917.html >> >> But Dovecot doesn't pass it recursively. It's only passed once from >> pop3-login to pop3 process. >> >> > Is this something that Dovecot should be able to handle, or is it >> strictly >> > Debian/libc/MySillyMistake related? >> > >> > #uname -a >> > Linux server 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u3 >> > (2016-01-17) x86_64 GNU/Linux >> >> I wonder if there's a new kernel change that started detecting the >> recursion wrong. >> >> > Yes, It's started to happen with the latest kernels from the Stable > branch. This is the latest I have installed: > 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt20-1+deb8u3 (2016-01-17) x86_64 > > Older Debian kernels are not showing up anything. This one, for example: > 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u6 (2015-11-09) x86_64 > > > Regards. >
