[Dovecot] 1.0alpha1: stack frame core
Jeff A. Earickson
jaearick at colby.edu
Fri Sep 9 16:52:49 EEST 2005
Hi,
Today's core dump from 1.0alpha1 came from a syslog
message of:
IMAP(user): pool_data_stack_realloc(): stack frame changed
gdb info on the resulting core dump attached.
Question: how many people are building/using dovecot
1.0alpha1 with gcc 4.0.1 versus gcc 3.4.x? I am wondering
if these issues come from the compiler instead of dovecot
itself?
Jeff Earickson
Colby College
-------------- next part --------------
Script started on Fri Sep 09 09:39:18 2005
%gdb imap core.kenevius
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This GDB was configured as "sparc-sun-solaris2.9"...
Core was generated by `imap'.
Program terminated with signal 6, Aborted.
Reading symbols from /usr/lib/libdl.so.1...done.
Loaded symbols for /usr/lib/libdl.so.1
Reading symbols from /usr/lib/libsocket.so.1...done.
Loaded symbols for /usr/lib/libsocket.so.1
Reading symbols from /usr/lib/libnsl.so.1...done.
Loaded symbols for /usr/lib/libnsl.so.1
Reading symbols from /usr/lib/librt.so.1...done.
Loaded symbols for /usr/lib/librt.so.1
Reading symbols from /usr/lib/libsendfile.so.1...done.
Loaded symbols for /usr/lib/libsendfile.so.1
Reading symbols from /usr/lib/libc.so.1...done.
Loaded symbols for /usr/lib/libc.so.1
Reading symbols from /usr/lib/libmp.so.2...done.
Loaded symbols for /usr/lib/libmp.so.2
Reading symbols from /usr/lib/libaio.so.1...done.
Loaded symbols for /usr/lib/libaio.so.1
Reading symbols from /usr/lib/libmd5.so.1...done.
Loaded symbols for /usr/lib/libmd5.so.1
Reading symbols from /usr/platform/SUNW,Ultra-1/lib/libc_psr.so.1...done.
Loaded symbols for /usr/platform/SUNW,Ultra-60/lib/libc_psr.so.1
#0 0xff2201a0 in _libc_kill () from /usr/lib/libc.so.1
(gdb) backtrace
#0 0xff2201a0 in _libc_kill () from /usr/lib/libc.so.1
#1 0xff1b6ce0 in abort () from /usr/lib/libc.so.1
#2 0x0006944c in i_internal_panic_handler (
fmt=0x83b98 "pool_data_stack_realloc(): stack frame changed",
args=0xffbfef00) at failures.c:374
#3 0x00068f30 in i_panic (
format=0x83b98 "pool_data_stack_realloc(): stack frame changed")
at failures.c:173
#4 0x00070304 in pool_data_stack_realloc (pool=Variable "pool" is not available.
) at mempool-datastack.c:112
#5 0x00067d60 in buffer_alloc (buf=0x98500, size=1024) at buffer.c:32
#6 0x00067fb0 in buffer_write (_buf=Variable "_buf" is not available.
) at buffer.c:57
#7 0x00067ff4 in buffer_append (buf=0x98500, data=0x98674, data_size=539)
at buffer.c:155
#8 0x0007551c in str_append_n (str=0x98500, cstr=0x98674, max_len=539)
at str.c:77
#9 0x0005ffa4 in imap_quote_append (str=0x98500,
value=0x98674 "Penguina", '\\' <repeats 192 times>..., value_len=539,
compress_lwsp=1) at imap-quote.c:59
#10 0x0005ce64 in parse_save_params_list (
name=0x98670 "namePenguina", '\\' <repeats 188 times>..., name_len=4,
value=0x98674 "Penguina", '\\' <repeats 192 times>..., value_len=539,
value_quoted=1, context=Variable "context" is not available.
) at imap-bodystructure.c:76
#11 0x000635e0 in message_content_parse_header (data=Variable "data" is not available.
)
at message-content-parser.c:67
#12 0x0005d0f4 in parse_content_header (d=0xdefb0, hdr=Variable "hdr" is not available.
)
at imap-bodystructure.c:168
#13 0x0005d44c in imap_bodystructure_parse_header (pool=0xde928, part=Variable "part" is not available.
)
at imap-bodystructure.c:255
#14 0x0003fbb4 in parse_bodystructure_part_header (part=0xdef60, hdr=0xb0010,
context=0xde928) at index-mail.c:344
#15 0x00064b24 in message_parse_part_header (parser_ctx=0xe5820)
at message-parser.c:223
#16 0x00064a2c in message_parse_multipart (parser_ctx=0xe5820)
at message-parser.c:179
#17 0x00064cd0 in message_parse_part_body (parser_ctx=0xe5820)
at message-parser.c:269
#18 0x0006564c in message_parser_parse_body (ctx=0xe5820,
hdr_callback=0x3fba0 <parse_bodystructure_part_header>, body_callback=0,
context=0xde928) at message-parser.c:619
---Type <return> to continue, or q <return> to quit---up
#19 0x0003fca4 in index_mail_parse_body (mail=0xafd38, need_parts=0)
at index-mail.c:366
#20 0x000401ac in index_mail_parse_bodystructure (mail=0xafd38,
field=MAIL_CACHE_IMAP_BODYSTRUCTURE) at index-mail.c:525
#21 0x00040654 in index_mail_get_special (_mail=Variable "_mail" is not available.
) at index-mail.c:673
#22 0x00035b08 in mbox_mail_get_special (_mail=0xafd38,
field=MAIL_FETCH_IMAP_BODYSTRUCTURE) at mbox-mail.c:140
#23 0x0005ae70 in mail_get_special (mail=Variable "mail" is not available.
) at mail.c:113
#24 0x00022758 in fetch_bodystructure (ctx=0xa5198, mail=Variable "mail" is not available.
) at imap-fetch.c:379
#25 0x00022410 in imap_fetch (ctx=0xa5198) at imap-fetch.c:265
#26 0x0001d870 in cmd_fetch (cmd=0xa2ee8) at cmd-fetch.c:166
#27 0x00020c60 in client_handle_input (cmd=0xa2ee8) at client.c:334
#28 0x00020d68 in _client_input (context=Variable "context" is not available.
) at client.c:386
#29 0x0006e850 in io_loop_handler_run (ioloop=0xa0db0) at ioloop-poll.c:184
#30 0x0006e11c in io_loop_run (ioloop=0xa0db0) at ioloop.c:230
#31 0x00029348 in main (argc=0, argv=0xffbffba4, envp=0xffbffbac) at main.c:229
(gdb) up 4
#4 0x00070304 in pool_data_stack_realloc (pool=Variable "pool" is not available.
) at mempool-datastack.c:112
112 i_panic("pool_data_stack_realloc(): stack frame changed");
(gdb) print pool
Variable "pool" is not available.
(gdb) up
#5 0x00067d60 in buffer_alloc (buf=0x98500, size=1024) at buffer.c:32
32 buf->w_buffer = p_realloc(buf->pool, buf->w_buffer, buf->alloc, size);
(gdb) print *buf
$1 = {r_buffer = 0x98520 "\"name\" {539}\r\n", used = 14,
w_buffer = 0x98520 "\"name\" {539}\r\n", dirty = 36, alloc = 256,
pool = 0x984d0, alloced = 1, dynamic = 1}
(gdb) print *(buf->w_buffer)
$2 = 34 '"'
(gdb) print *(buf->r_buffer)
$3 = 34 '"'
(gdb) print buf->pool
$4 = 0x984d0
(gdb) print *(buf->pool)
$5 = {get_name = 0x70198 <pool_data_stack_get_name>,
ref = 0x701a4 <pool_data_stack_ref>,
unref = 0x701dc <pool_data_stack_unref>,
malloc = 0x70244 <pool_data_stack_malloc>,
free = 0x70290 <pool_data_stack_free>,
realloc = 0x702bc <pool_data_stack_realloc>,
clear = 0x7036c <pool_data_stack_clear>,
get_max_easy_alloc_size = 0x70374 <pool_data_stack_get_max_easy_alloc_size>,
alloconly_pool = 1, datastack_pool = 1}
(gdb) print dpool
No symbol "dpool" in current context.
(gdb) down
#4 0x00070304 in pool_data_stack_realloc (pool=Variable "pool" is not available.
) at mempool-datastack.c:112
112 i_panic("pool_data_stack_realloc(): stack frame changed");
(gdb) print dpool
$6 = (struct datastack_pool *) 0x83b98
(gdb) print *dpool
$7 = {pool = {get_name = 0x706f6f6c, ref = 0x5f646174, unref = 0x615f7374,
malloc = 0x61636b5f, free = 0x7265616c, realloc = 0x6c6f6328,
clear = 0x293a2073, get_max_easy_alloc_size = 0x7461636b,
alloconly_pool = 0, datastack_pool = 0}, refcount = 1835343971,
data_stack_frame = 1751215719}
(gdb) print data_stack_frea ame
$8 = 7
(gdb) quit
%exit
exit
script done on Fri Sep 09 09:47:29 2005
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