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 (forondarena@gmail.com) escribió:
El vie., 11 mar. 2016 a las 2:08, Timo Sirainen (tss@iki.fi) escribió:
On 11 Mar 2016, at 03:48, Luis Ugalde forondarena@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.