Il 23/06/2012 22:39, Mailing List SVR ha scritto:

Hi,

after the upgrade from dovecot 2.0.13 (ubuntu oneiric) to dovecot 2.0.19 (ubuntu precise), in my logs I have a lot of these errors:

Jun 23 00:20:29 server1 dovecot: master: Error: service(imap-login): child 6714 killed with signal 11 (core dumps disabled)

I tested 2.0.21 and the problem is still here. The problem seems to appear only when the client is ms outlook, thunderbird works fine

Here is the captured trace (I hope this is enough and I don't need to install debug symbols for everythings):

Core was generated by `dovecot/imap-login -D'. Program terminated with signal 11, Segmentation fault. #0 0x00007f4d01c1a031 in RC4 () from /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 (gdb) bt full #0 0x00007f4d01c1a031 in RC4 () from /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 No symbol table info available. #1 0x0000000000000134 in ?? () No symbol table info available. #2 0x00000000000000cd in ?? () No symbol table info available. #3 0x00007f4d03e97470 in ?? () No symbol table info available. #4 0x00007f4d01c80629 in ?? () from /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 No symbol table info available. #5 0x00007f4d01f82bcf in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0 No symbol table info available. #6 0x00007f4d01f79e04 in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0 No symbol table info available. #7 0x00007f4d01f7a134 in ?? () from /lib/x86_64-linux-gnu/libssl.so.1.0.0 No symbol table info available. #8 0x00007f4d027fed6f in ssl_write (proxy=0x7f4d03e7c0a0) at ssl-proxy-openssl.c:499 ret = <optimized out> #9 0x00007f4d027fee68 in plain_read (proxy=0x7f4d03e7c0a0) at ssl-proxy-openssl.c:308 ret = <optimized out> corked = true ---Type <return> to continue, or q <return> to quit--- #10 0x00007f4d025b5c98 in io_loop_call_io (io=0x7f4d03e84b10) at ioloop.c:384 ioloop = 0x7f4d03e3e680 t_id = 2 #11 0x00007f4d025b6d27 in io_loop_handler_run (ioloop=<optimized out>) at ioloop-epoll.c:213 ctx = 0x7f4d03e505a0 events = 0x6579351d event = 0x7f4d03e50610 list = 0x7f4d03e93690 io = <optimized out> tv = {tv_sec = 59, tv_usec = 999832} msecs = <optimized out> ret = 1 i = <optimized out> call = <optimized out> #12 0x00007f4d025b5c28 in io_loop_run (ioloop=0x7f4d03e3e680) at ioloop.c:405 No locals. #13 0x00007f4d025a3e33 in master_service_run (service=0x7f4d03e3e550, callback=<optimized out>) at master-service.c:481 No locals. #14 0x00007f4d027f7cc2 in main (argc=2, argv=0x7f4d03e3e370) at main.c:371 set_pool = 0x7f4d03e3e880 allow_core_dumps = <optimized out> ---Type <return> to continue, or q <return> to quit--- login_socket = 0x7f4d02800763 "login" c = <optimized out> #15 0x00007f4d021d676d in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6 No symbol table info available. #16 0x00007f4d02c2d5a9 in _start () No symbol table info available.

Nicola

Here is a more detailed trace,

Core was generated by dovecot/imap-login -D'. Program terminated with signal 11, Segmentation fault. #0 RC4 () at rc4-x86_64.s:343 343 rc4-x86_64.s: File o directory non esistente. (gdb) bt full #0 RC4 () at rc4-x86_64.s:343 No locals. #1 0x0000000000000134 in ?? () No symbol table info available. #2 0x00000000000000cd in ?? () No symbol table info available. #3 0x00007f4d03e97470 in ?? () No symbol table info available. #4 0x00007f4d01c80629 in rc4_hmac_md5_cipher (ctx=<optimized out>, out=0x7f4d03e8d0b8 "\314V\347\335Lc\024\205\221'µ\006\177\313\326ۢ\313\317\303c\266\360\347\364\263\242\316z\326\307\320\303Ω\242\303\321ί\313Т\177\315\305\313̯\320\307u\307\320\320\303\316ѢzƢ\307\314\303\300\316v\242\313\306\316Ǣ\321c\030T SORT=DISPLAY\301\021\222RC\005D=R\244\237T\342\004\"\020ES TH\003\246AD=\247\032FS \351ULTIA&\315\025N8\032\341\255\364EZ\376\236\062 CHILDREN\\\b{\250\240\255PACE U\216\331\nLUS LIST-EXTENDED I18NLEVEL=h CO"..., in=<optimized out>, len=0) at e_rc4_hmac_md5.c:163 key = 0x1a rc4_off = 139968754799079 md5_off = <optimized out> blocks = <optimized out> l = <optimized out> plen = <optimized out> #5 0x00007f4d01f82bcf in tls1_enc (s=0x7f4d03e7b700, send=1) at t1_enc.c:828 ---Type <return> to continue, or q <return> to quit--- rec = 0x7f4d03e7bcb8 ds = 0x7f4d03e95cf0 l = 308 bs = 1 i = <optimized out> ii = <optimized out> j = <optimized out> k = <optimized out> pad = <optimized out> enc = 0x7f4d01f4eae0 #6 0x00007f4d01f79e04 in do_ssl3_write (s=0x7f4d03e7b700, type=23, buf=0x7f4d03e7c514 "A0 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CO"..., len=292, create_empty_fragment=0) at s3_pkt.c:815 p = <optimized out> plen = 0x7f4d03e8d0b6 "" i = <optimized out> mac_size = 0 clear = <optimized out> prefix_len = <optimized out> eivlen = <optimized out> align = <optimized out> ---Type <return> to continue, or q <return> to quit--- wr = 0x7f4d03e7bcb8 wb = 0x7f4d03e7bc68 sess = <optimized out> #7 0x00007f4d01f7a134 in ssl3_write_bytes (s=0x7f4d03e7b700, type=23, buf_=0x7f4d03e7c514, len=<optimized out>) at s3_pkt.c:605 buf = 0x7f4d03e7c514 "A0 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CO"... tot = 0 n = 292 nw = <optimized out> i = <optimized out> #8 0x00007f4d027fed6f in ssl_write (proxy=0x7f4d03e7c0a0) at ssl-proxy-openssl.c:499 ret = <optimized out> #9 0x00007f4d027fee68 in plain_read (proxy=0x7f4d03e7c0a0) at ssl-proxy-openssl.c:308 ret = <optimized out> corked = true #10 0x00007f4d025b5c98 in io_loop_call_io (io=0x7f4d03e84b10) at ioloop.c:384 ioloop = 0x7f4d03e3e680 t_id = 2 #11 0x00007f4d025b6d27 in io_loop_handler_run (ioloop=<optimized out>) ---Type <return> to continue, or q <return> to quit--- at ioloop-epoll.c:213 ctx = 0x7f4d03e505a0 events = 0x6579351d event = 0x7f4d03e50610 list = 0x7f4d03e93690 io = <optimized out> tv = {tv_sec = 59, tv_usec = 999832} msecs = <optimized out> ret = 1 i = <optimized out> call = <optimized out> #12 0x00007f4d025b5c28 in io_loop_run (ioloop=0x7f4d03e3e680) at ioloop.c:405 No locals. #13 0x00007f4d025a3e33 in master_service_run (service=0x7f4d03e3e550, callback=<optimized out>) at master-service.c:481 No locals. #14 0x00007f4d027f7cc2 in main (argc=2, argv=0x7f4d03e3e370) at main.c:371 set_pool = 0x7f4d03e3e880 allow_core_dumps = <optimized out> login_socket = 0x7f4d02800763 "login" c = <optimized out> #15 0x00007f4d021d676d in __libc_start_main (main=0x7f4d027f7a60 <main>, argc=2, ubp_av=0x7fff37290a68, init=<optimized out>, fini=<optimized out>, ---Type <return> to continue, or q <return> to quit--- rtld_fini=<optimized out>, stack_end=0x7fff37290a58) at libc-start.c:226 result = <optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -1085834845464457622, 139968735532416, 140734118824544, 0, 0, 1085429787565592170, 1041548453329079914}, mask_was_saved = 0}}, priv = {pad = { 0x0, 0x0, 0x7fff37290a80, 0x1}, data = {prev = 0x0, cleanup = 0x0, canceltype = 925436544}}} not_first_call = <optimized out> #16 0x00007f4d02c2d5a9 in _start ()

Nicola