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.
