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...io_loop_run (ioloop=0x8058370) at ioloop.c:350 #9 0xb7e49f5a in master_service_run (service=0x80582c0, callback=0x804b090 <client_connected>) at master-service.c:496 #10 0x0804af66 in main (argc=0, argv=0x0) at main.c:250 If You want core file I can send, but maybe this is unnecessary. -- Len7hir

...'\n' was skipped (this piece of code is used very rare). Please check this out. This can help in huge e-mail systems :P And another problem. Why You use safe_memset instead of memset? Now this function have the largest impact in Dovecot performance. Another on list is t_push. Regards, Len7hir -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: dovecot-patch1.diff URL: <http://dovecot.org/pipermail/dovecot/attachments/20100901/207bdd8c/attachment-0006.pl> -------------- next part -------------- An embedded and charset-unspecified t...

...1.8393 buffer_write 658 1.8010 __i686.get_pc_thunk.bx 614 1.6806 safe_memset 586 1.6039 pool_alloconly_malloc 559 1.5300 p_strdup 533 1.4589 hash_table_insert_node I wonder why You use loops instead strlen, which is optimalised on every platforms. Redgards, Len7hir

...memset is called from pool_alloconly_clear. I attach result from oprofile - functions (with call tree) that have more than 2% of all oprofile samples in libdovecot.so. p_strdup is on the list, but it is lower than before last optimisations. As You see there is no other optimised functions :) -- Len7hir -------------- next part -------------- An embedded and charset-unspecified text was scrubbed... Name: libdovecot_profile.txt URL: <http://dovecot.org/pipermail/dovecot/attachments/20100903/e91b51e1/attachment-0002.txt>

...oop_run (ioloop=0x806c370) at ioloop.c:350 #11 0xb7e5b26a in master_service_run (service=0x806c2c0, callback=0x805f800 <client_connected>) at master-service.c:496 #12 0x0805f6da in main (argc=1752462689, argv=0x73616d2d) at main.c:358 This is Dovecot error or I do something wrong? -- Len7hir

...t = 0 vsz_limit = 128M process_min_avail = 8 } FD limit in system = 32000 8 cpu, 28GB RAM about 50 login per second Different Error messages I've when set service_count = 1. Feb 2 10:21:29 pp4 dovecot: pop3-login: (5052) Disconnected: Connection queue full (no auth attempts) -- Len7hir

...oop_run (ioloop=0x806c370) at ioloop.c:350 #11 0xb7e5b26a in master_service_run (service=0x806c2c0, callback=0x805f800 <client_connected>) at master-service.c:496 #12 0x0805f6da in main (argc=1752462689, argv=0x73616d2d) at main.c:358 This is Dovecot error or I do something wrong? -- Len7hir

...normal. We compile Dovecot with poll instead of epoll (--with-ioloop=poll) and this works for us. Is any problem with epoll on 3.2.x kernels? Or maybe this is Dovecot problem? Maybe this is not connected with epoll, but epoll is interferes with this. Problem on Dovecot 2.0.11 and 2.0.20. -- Len7hir

I don't know if this problem exists only in my version of dovecot, or in all... To reproduce BUG do this (use gdb): telnet localhost 143 o login addr at email.sth verystrong_pass o delete "kj-test-folder" o rename "kj-test-folder" o rename "kj-test-folder" "other-folder" SIGABRT Of course kj-test-folder is not exist. BT: #31 0xb7da0022 in free ()

As RFC3501 (IMAP) say: 'A NIL hierarchy delimiter means that no hierarchy exists; the name is a "flat" name.' How to change delimiter to NIL? We have flat namespaces in our storage. Now I hardcoded this and everything is working, but maybe it is another possibility... -- Konrad