Thierry de Montaudry wrote: > On 17 Aug 2011, at 13:42, Reinhard Vicinus wrote: > >> Hi, >> >> >> the lmtp service of our dovecot director installation quits with a >> segmentation fault if a lot of mails are simultaneously delivered. >> For example if the postfix mailqueue is filled (for whatever >> reason) and postqueue -f is run the lmtp service quits with a >> segmentation fault: >> >> >> Program terminated with signal 11, Segmentation fault. >> >> #0 o_stream_cork (stream=0x0) at ostream.c:75 >> >> 75 if (unlikely(stream->closed)) >> >> (gdb) backtrace >> >> #0 o_stream_cork (stream=0x0) at ostream.c:75 >> >> #1 0x00007fa6e6af45d9 in lmtp_client_send_more (client=0x2435870) >> at lmtp-client.c:596 >> >> #2 0x0000000002434170 in ?? () >> >> #3 0x00000000004070d9 in proxy_send_more (proxy=0x2435870) at >> lmtp-proxy.c:390 >> >> #4 lmtp_proxy_data_input (proxy=0x2435870) at lmtp-proxy.c:444 >> >> #5 0x00007fa6e6af456f in lmtp_client_send_data (client=0x24347a0) >> at lmtp-client.c:306 >> >> #6 0x0000000002434f98 in ?? () >> >> #7 0xffffffffe6af73c5 in ?? () >> >> #8 0x0000000002434840 in ?? () >> >> #9 0x0000000000000000 in ?? () >> >> >> I don't have any ideas why the stream is 0. The configuration of >> the dovecot director installation is attached. Please let me know >> if i shall provide any more information or test something. >> >> >> Kind regards >> >> Reinhard >> <dovecot-director-conf.txt> > > > Hi, > > You might need to limit the concurrent deliveries from postfix. > Check the maxproc parameter in your master.conf, which is 100 by > default. You should reduce it to some lower value, I would say between > 10 and 40 depending on your system. That would allow your queues to > grow without putting too much stress on the deliveries, even when > forcing it with postqueue -f.
Regardless, Reinhard still seem to have stumbled on a bug. /Per Jessen, Zürich
