> On May 1, 2017 at 8:26 PM Aki Tuomi <aki.tuomi at dovecot.fi> wrote: > > > > > On May 1, 2017 at 8:21 PM Tom Sommer <mail at tomsommer.dk> wrote: > > > > > > I just upgraded our Director to 2.2.29.1 from 2.2.26, and now my dmesg > > and /var/log/messages are getting flooded by these errors: > > > > lmtp[45758]: segfault at 21 ip 00007fb412d3ad11 sp 00007ffe83ad2df0 > > error 4 in libdovecot.so.0.0.0[7fb412c95000+11c000] > > > > Any ideas? > > > > -- > > Tom > > Try get a core dump and run it thru gdb. > > AkiAlso, dovecot should log some kind of trace and message into syslog or whatever log_path points to. Aki
On 2017-05-01 19:34, Aki Tuomi wrote:>> On May 1, 2017 at 8:26 PM Aki Tuomi <aki.tuomi at dovecot.fi> wrote: >> >> >> >> > On May 1, 2017 at 8:21 PM Tom Sommer <mail at tomsommer.dk> wrote: >> > >> > >> > I just upgraded our Director to 2.2.29.1 from 2.2.26, and now my dmesg >> > and /var/log/messages are getting flooded by these errors: >> > >> > lmtp[45758]: segfault at 21 ip 00007fb412d3ad11 sp 00007ffe83ad2df0 >> > error 4 in libdovecot.so.0.0.0[7fb412c95000+11c000] >> > >> > Any ideas? >> > >> > -- >> > Tom >> >> Try get a core dump and run it thru gdb. >> >> Aki > > Also, dovecot should log some kind of trace and message into syslog or > whatever log_path points to.Only this: May 02 09:00:34 lmtp(17467): Fatal: master: service(lmtp): child 17467 killed with signal 11 (core dumps disabled) .. and lots of them.
On 2017-05-02 10:02, Tom Sommer wrote:> > On 2017-05-01 19:34, Aki Tuomi wrote: >>> On May 1, 2017 at 8:26 PM Aki Tuomi <aki.tuomi at dovecot.fi> wrote: >>> >>> >>> >>> > On May 1, 2017 at 8:21 PM Tom Sommer <mail at tomsommer.dk> wrote: >>> > >>> > >>> > I just upgraded our Director to 2.2.29.1 from 2.2.26, and now my >>> dmesg >>> > and /var/log/messages are getting flooded by these errors: >>> > >>> > lmtp[45758]: segfault at 21 ip 00007fb412d3ad11 sp 00007ffe83ad2df0 >>> > error 4 in libdovecot.so.0.0.0[7fb412c95000+11c000] >>> > >>> > Any ideas? >>> > >>> > -- >>> > Tom >>> >>> Try get a core dump and run it thru gdb. >>> >>> Aki >> >> Also, dovecot should log some kind of trace and message into syslog or >> whatever log_path points to. > > Only this: > > May 02 09:00:34 lmtp(17467): Fatal: master: service(lmtp): child 17467 > killed with signal 11 (core dumps disabled) > > .. and lots of them.Then try enable core dumps, and see what the core says. sysctl kernel.core_pattern=/some/writable/dir sysctl fs.suid_dumpable=2 and if you are using systemd, you also need to add /etc/systemd/system/dovecot.service.d/coredump.conf with [Service] LimitCORE=infinity Aki