Ah my bad I understood Elisamuel's text wrong. I read it as - kernel 6.1 fixed the issue for me. But now I understand, he is running kernel 6.1 and had problems with it.

Taavi Ansper
taavi.ans...@cyber.ee

On 20.09.23 10:10, Aki Tuomi via dovecot wrote:
Yes, well, 6.x kernel is too new. Since we are close to making new major 
release, the old version is not going to get that much new features or 
compatibilty fixes anymore.

If you run 2.3 in too recent systems, you might run into issues. We officially target 
centos7 & 8, rhel 7 & 8, ubuntu up to 20.04, debian stretch and bullseye.

Aki

On 19/09/2023 20:17 EEST Taavi Ansper via dovecot <dovecot@dovecot.org> wrote:

Hi

After running from backports the issue still seems to be there unfortunately 
for me.

If it is a kernel issue we are running this on Xen Paravirtualized VM.

6.1.0-0.deb11.11-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.38-4~bpo11+1 
(2023-08-08) x86_64 GNU/Linux

Taavi Ansper
taavi.ans...@cyber.ee

On 19.09.23 17:12, Elisamuel Resto wrote:
Hello,

I had reported it a while back in April on this list and Aki is correct — it is 
due to recent kernels. The change that was committed to Git resolved the issue 
for me with kernel version 6.1.12 on Gentoo.

For reference, Aki had stated it was fixed in main and provided this: 
https://github.com/dovecot/core/compare/f359c6ee179aad5e077711c188fc8422106cbead%5E..d93c31d51b05d43eaa6eeef9cdc0f7a4157f7d0e.patch


Regards,
Elisamuel Resto

On Sep 19, 2023, at 02:54, Aki Tuomi via dovecot <dovecot@dovecot.org> wrote:


On 19/09/2023 10:33 EEST Taavi Ansper via dovecot <dovecot@dovecot.org> wrote:


Hi

When will there be a new dovecot release. The 2.3.21 version borked our users 
with large amount of folders (i think over 255 folders)

doveadm(REDACTED_USER): Error: /proc/self/status is larger than expected

I can't find the debian bug report (or was it mentioned in this same mailing 
list), but somebody else has mentioned the same issue.

I hope this gets fixed in the next version.

--
Taavi Ansper
taavi.ans...@cyber.ee

Hi!

This is actually caused by very recent kernels, if I remember correctly. Can you 
let me known the distro & kernel you are using and source of your packages? 
This is actually fixed for 2.4 already in

https://github.com/dovecot/core/commit/218a79a48bb0e5d2be44bb46c51836fd406b0c50.patch

Aki
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