Error and Panic (with coredump)

[Thomas Knaute]

>
> On 27.4.2021 9.57, Thomas Knaute wrote:
>>
>>
>>
>>>
>>>> On 26/04/2021 19:03 Thomas Knaute <thomas.knaute at p2mberlin.de> wrote:
>>>>
>>>>
>>>> Hi there,
>>>>
>>>> i'm pretty new to this stuff, just tell me if you need more
>>>> information.
>>>>
>>>> Apr 26 17:15:43 dilia dovecot:
>>>> imap(user at domain.de)<78561><rtYxnuHAZoPAqBSC>: Error:
>>>> i_stream_seekable_write_failed: close((&sstream->fd)) @
>>>> istream-seekable.c:246 failed (fd=21): Bad fi
>>>> le descriptor
>>>> Regards, Thomas
>>>
>>> Do you by change run out of disk space in /tmp or see any other errors?
>>>
>>> Aki
>>>
>>
>> it was
>> /dev/mapper/dilia-vg-tmp 360M 3,6M 334M 2% /tmp
>>
>> now it is
>> /dev/mapper/dilia-vg-tmp 1,4G 2,8M 1,3G 1% /tmp
>>
>> Other Errors:
>>
>> User has several thousand mails in the "Send" folder. Whenever the
>> webmailer tried to read the folder, this error occurred.
>>
>> Apr 15 13:50:44 dilia dovecot:
>> imap(user at domain.de)<11957><mbjjeAHApvIK8gIi>: Error: Raw backtrace:
>> /usr/lib/dovecot/libdovecot.so.0(+0xdb13b) [0x7fd9e90ce13b] ->
>> /usr/lib/dovecot/libdovecot.so.0(+0xdb1d1) [0x7fd9e90ce1d1] ->
>> /usr/lib/dovecot/libdovecot.so.0(+0x4a21b) [0x7fd9e903d21b] ->
>> /usr/lib/dovecot/libdovecot.so.0(+0x4dfc7) [0x7fd9e9040fc7] ->
>> /usr/lib/dovecot/libdovecot.so.0(+0xe6942) [0x7fd9e90d9942] ->
>> /usr/lib/dovecot/libdovecot.so.0(i_stream_alloc+0x88) [0x7fd9e90db098]
>> -> /usr/lib/dovecot/libdovecot.so.0(+0xee059) [0x7fd9e90e1059] ->
>> /usr/lib/dovecot/libdovecot.so.0(+0xee546) [0x7fd9e90e1546] ->
>> /usr/lib/dovecot/libdovecot.so.0(+0xe66d9) [0x7fd9e90d96d9] ->
>> /usr/lib/dovecot/libdovecot.so.0(i_stream_get_size+0x2a)
>> [0x7fd9e90da5aa] ->
>> /usr/lib/dovecot/modules/lib20_zlib_plugin.so(+0x417c)
>> [0x7fd9e8dfd17c] ->
>> /usr/lib/dovecot/libdovecot-storage.so.0(index_mail_set_seq+0x25)
>> [0x7fd9e924ceb5] -> /usr/lib/dovecot/libdovecot-storage.so.0(+0xd19ce)
>> [0x7fd9e92539ce] ->
>> /usr/lib/dovecot/libdovecot-storage.so.0(index_storage_search_next_nonblock+0x10d)
>> [0x7fd9e925418d] ->
>> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next_nonblock+0x28)
>> [0x7fd9e91dce58] ->
>> /usr/lib/dovecot/libdovecot-storage.so.0(mailbox_search_next+0x3f)
>> [0x7fd9e91dcedf] -> dovecot/imap [user at domain.de 10.242.2.34 UID
>> fetch](+0x21847) [0x557be3f0e847] -> dovecot/imap [user at domain.de
>> 10.242.2.34 UID fetch](imap_fetch_more+0x39) [0x557be3f0f779] ->
>> dovecot/imap [user at domain.de 10.242.2.34 UID fetch](cmd_fetch+0x337)
>> [0x557be3f00c07] -> dovecot/imap [user at domain.de 10.242.2.34 UID
>> fetch](command_exec+0x70) [0x557be3f0cd80] -> dovecot/imap
>> [user at domain.de 10.242.2.34 UID fetch](+0x1e3f2) [0x557be3f0b3f2] ->
>> dovecot/imap [user at domain.de 10.242.2.34 UID fetch](+0x1e494)
>> [0x557be3f0b494] -> dovecot/imap [user at domain.de 10.242.2.34 UID
>> fetch](client_handle_input+0x1b5) [0x557be3f0b845] -> dovecot/imap
>> [user at domain.de 10.242.2.34 UID fetch](client_input+0x7e)
>> [0x557be3f0bd6e] ->
>> /usr/lib/dovecot/libdovecot.so.0(io_loop_call_io+0x6f)
>> [0x7fd9e90e45ef] ->
>> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run_internal+0x136)
>> [0x7fd9e90e5be6] ->
>> /usr/lib/dovecot/libdovecot.so.0(io_loop_handler_run+0x4c)
>> [0x7fd9e90e468c] -> /usr/lib/dovecot/libdovecot.so.0(io_loop_run+0x40)
>> [0x7fd9e90e47f0]
>> Apr 15 13:50:44 dilia dovecot:
>> imap(user at domain.de)<11957><mbjjeAHApvIK8gIi>: Fatal: master:
>> service(imap): child 11957 returned error 83 (Out of memory (service
>> imap { vsz_limit=512 MB }, you may need to increase it) - set
>> CORE_OUTOFMEM=1 environment to get core dump)
>>
>> so i increased the limit:
>> /etc/dovecot/conf.d/10-master.conf:default_vsz_limit = 1024M
>>
>>
> Did these actions fix the issues?
>

Increasing the size of /tmp seems to have solved the problem. I  
increased vsz_limit a few days ago, could it be that this is what  
caused the other error to occur (more often)?

thank you!

regards, thomas