Am 01.09.2016 um 14:17 schrieb Aki Tuomi:
On 01.09.2016 14:20, Piper Andreas wrote:
Hello Timo,
with the newly build CSW-package the crashes still occur, today already twice within two hours. The log shows always the same:
Sep 1 11:50:13 surz113 dovecot: [ID 583609 mail.crit] imap(user): Panic: file imap-client.c: line 837 (client_check_command_hangs): assertion failed: (client->io != NULL) Sep 1 11:50:13 surz113 dovecot: [ID 583609 mail.error] imap(user): Error: Raw backtrace: 0xffff80ffb633d88d -> 0xffff80ffb636ae82 -> 0x41eba0 -> 0x41ecf3 -> 0xffff80ffb635d248 -> 0xffff80ffb6350d2f -> 0xffff80ffb63519e0 -> 0xffff80ffb6350dce -> 0xffff80ffb6350f90 -> 0xffff80ffb62e3ebb -> 0x42f169 -> 0x41292c Sep 1 11:50:13 surz113 dovecot: [ID 583609 mail.crit] imap(user): Fatal: master: service(imap): child 11227 killed with signal 6 (core not dumped - set service imap { drop_priv_before_exec=yes })
This happens with different users, the last one with a relatively small mailbox of 600MB.
doveconf -n is attached.
Dovecot 2.2.25 OS: Solaris 11 (SunOS 5.11 11.3 i86pc i386 i86pc) Virtualization: VMware Filesystem: ZFS active users: ~4000
The system was transferred at beginning of last week from an old SPARC-station with Solaris 10 running dovecot-2.2.15 to this virtualized platform under VMware. The mailboxes (maildir-format) were transferred without change by switching the storage-hardware to the new server. I had to remove all dovecot.index*-files for errors of "CPU Architecture changed", but after doing this all seemed to work ok except for these occasional crashes.
If you need more information, please let me know.
Thanks for any help, Andreas
Hi Jake,
thanks for fixing this. I have installed now the newly built package on my production system and will report, if any more core dumps occur.
Regards, Andreas
Hi!
Is it possible for you test out a small patch (attached) to see if it fixes this issue?
Aki
Hello Aki,
your patch missed a trailing '{', which was corrected by the OpenCSW-maintainer, who implemented the patch into a test-version of dovecot-2.2.25 for me.
I started this version on my production system on Friday morning (09. Sep, 07:30). After that the server crashed once on Sunday evening (11.Sep, 20:40), but with a completely different error message:
Sep 11 20:40:37 surz113 dovecot: [ID 583609 mail.crit] imap(user1): Panic: file imap-fetch.c: line 555 (imap_fetch_more): assertion failed: (ctx->client->output_cmd_lock == NULL || ctx->client->output_cmd_lock == cmd) Sep 11 20:40:37 surz113 dovecot: [ID 583609 mail.error] imap(user1): Error: Raw backtrace: 0xffff80ffb5fcd88d -> 0xffff80ffb5ffae82 -> 0x4225c1 -> 0x4153e5 -> 0x41ffae -> 0x41e4bf -> 0x41e865 -> 0x41ede4 -> 0xffff80ffb5fe0d2f -> 0xffff80ffb5fe19e0 -> 0xffff80ffb5fe0dce -> 0xffff80ffb5fe0f90 -> 0xffff80ffb5f73ebb -> 0x42f169 -> 0x41292c Sep 11 20:40:37 surz113 dovecot: [ID 583609 mail.crit] imap(user1): Fatal: master: service(imap): child 12150 killed with signal 6 (core not dumped - set service imap { drop_priv_before_exec=yes })
May this be related to your patch, or is it something completely different?
Thanks and best regards, Andreas
Dr. Andreas Piper, Hochschulrechenzentrum der Philipps-Univ. Marburg Hans-Meerwein-Straße, 35032 Marburg, Germany Phone: +49 6421 28-23521 Fax: -26994 E-Mail: piper@HRZ.Uni-Marburg.DE