I'm still seeing SIGSEV's regularly on the busier of our ldap servers
(800K connections/day, 20-20K search ops per connection)
What I can't get is a reproducible case. It happens far more often on
the busier server and not at all
on the least loaded servers. It's only happening under SPARC, using the
debian install on x86 hardware
seems stable. Any pointers for getting a reproducable case, and what
should I be trying to get out of
the core files above the basic trace below? (Parse the logfiles with
perl and replay?)
If anyone else is using a recent 2.3.x or 2.4 build on Solaris, can they
tell me if my build environment
is sane before I try upgrading to 2.4.10?
Cheers,
Duncan
DB_CONFIG
#
set_cachesize 0 209715200 1
set_lg_dir /trans_logs
set_lg_regionmax 262144
set_lg_bsize 2097152
set_lg_max 16777216
set_tmp_dir /tmp
set_flags DB_LOG_AUTOREMOVE
---
Build Environment
LDFLAGS=-R/usr/sfw/lib:/usr/local/ssl/lib:/usr/local/lib
-L/usr/local/lib -L/usr/local/ssl/lib -L/usr/sfw/lib
CPPFLAGS=-I/usr/local/include -I/usr/local/ssl/include -I/usr/sfw/include
LD=/usr/ccs/bin/ld -R/usr/sfw/lib:/usr/local/ssl/lib:/usr/local/lib
setenv PATH
"/usr/ccs/bin/:/usr/bin:/bin:/usr/sbin:/opt/local/bin:/usr/sfw/bin:/usr/local/bin"
setenv LDFLAGS "-R/usr/sfw/lib:/usr/local/ssl/lib:/usr/local/lib
-L/usr/local/lib -L/usr/local/ssl/lib -L/usr/sfw/lib"
setenv CPPFLAGS "-I/usr/local/include -I/usr/local/ssl/include
-I/usr/sfw/include"
setenv LD "/usr/ccs/bin/ld -R/usr/sfw/lib:/usr/local/ssl/lib:/usr/local/lib"
---
Configured with
./configure --disable-ipv6 --with-cyrus-sasl --with-tls --enable-dynamic
--enable-slapd --enable-modules --enable-spasswd --enable-rewrite
--enable-rlookups --enable-wrappers --enable-hdb --enable-monitor
--disable-shell --disable-sql --enable-overlays=mod --enable-crypt
---
Compiled with gcc 3.4.3, I've tried Sun Studio as well but experienced
similar crashes.
dbx gives me the following output
For information about new features see `help changes'
To remove this message, put `dbxenv suppress_startup_message 7.4' in
your .dbxrc
Reading slapd
core file header read successfully
Reading ld.so.1
Reading libldap_r-2.4.so.2.0.4
Reading liblber-2.4.so.2.0.4
Reading libltdl.so.3.1.5
Reading libdb-4.6.so
Reading librt.so.1
Reading libpthread.so.1
Reading libicuuc.so.2
Reading libicudata.so.2
Reading libsasl2.so.2.0.22
Reading libdl.so.1
Reading libssl.so.0.9.8
Reading libcrypto.so.0.9.8
Reading libresolv.so.2
Reading libgen.so.1
Reading libnsl.so.1
Reading libsocket.so.1
Reading libc.so.1
Reading libgcc_s.so.1
Reading libgcc_s.so.1
Reading libaio.so.1
Reading libmd5.so.1
Reading libm.so.2
Reading libCrun.so.1
Reading libc_psr.so.1
Reading libgssapiv2.so.2.0.22
Reading libgssapi.so.4.0.0
Reading libkrb5.so.17.4.0
Reading libasn1.so.6.1.0
Reading libroken.so.16.1.0
Reading libcom_err.so.1.1.3
Reading libncurses.so.5.4
Reading libdoor.so.1
Reading libscf.so.1
Reading libuutil.so.1
Reading libmd5_psr.so.1
Reading libmp.so.2
Reading liblogin.so.2.0.22
Reading libplain.so.2.0.22
Reading syncprov-2.4.so.2.0.4
[EMAIL PROTECTED] ([EMAIL PROTECTED]) terminated by signal KILL (Killed)
0xfe4bd61c: __lwp_wait+0x0008: bcc,a,pt %icc,__lwp_wait+0x18 !
0xfe4bd62c
Current function is slapd_daemon
2644 ldap_pvt_thread_join( listener_tid, (void *)NULL );
(dbx) threads
> [EMAIL PROTECTED] a [EMAIL PROTECTED] ?() LWP suspended in
__lwp_wait()
[EMAIL PROTECTED] a [EMAIL PROTECTED] slapd_daemon_task() LWP
suspended in __pollsys()
[EMAIL PROTECTED] a [EMAIL PROTECTED] ldap_int_thread_pool_wrapper() sleep on 0x1dad38
in __lwp_park()
[EMAIL PROTECTED] a [EMAIL PROTECTED] ldap_int_thread_pool_wrapper() sleep on 0x1dad38
in __lwp_park()
[EMAIL PROTECTED] a [EMAIL PROTECTED] ldap_int_thread_pool_wrapper() sleep on 0x1dad38
in __lwp_park()
[EMAIL PROTECTED] a [EMAIL PROTECTED] ldap_int_thread_pool_wrapper() LWP suspended in
ch_malloc()
[EMAIL PROTECTED] a [EMAIL PROTECTED] ldap_int_thread_pool_wrapper() sleep on 0x1dad38
in __lwp_park()
[EMAIL PROTECTED] a [EMAIL PROTECTED] ldap_int_thread_pool_wrapper() sleep on 0x1dad38
in __lwp_park()
[EMAIL PROTECTED] a [EMAIL PROTECTED] ldap_int_thread_pool_wrapper() sleep on 0x1dad38
in __lwp_park()
[EMAIL PROTECTED] a [EMAIL PROTECTED] ldap_int_thread_pool_wrapper() sleep on 0x1dad38
in __lwp_park()
[EMAIL PROTECTED] a [EMAIL PROTECTED] ldap_int_thread_pool_wrapper() sleep on 0x1dad38
in __lwp_park()
o [EMAIL PROTECTED] a [EMAIL PROTECTED] ldap_int_thread_pool_wrapper() signal SIGSEGV in
is_ad_subtype()
(dbx) thread [EMAIL PROTECTED]
[EMAIL PROTECTED] ([EMAIL PROTECTED]) stopped in is_ad_subtype at line 489 in file
"ad.c"
489 for ( a = sub->ad_type; a; a=a->sat_sup ) {
(dbx) where
current thread: [EMAIL PROTECTED]
=>[1] is_ad_subtype(sub = (nil), super = 0x1f81b0), line 489 in "ad.c"
[2] attrs_find(a = 0x499014, desc = 0x1f81b0), line 647 in "attr.c"
[3] test_ava_filter(op = 0x6645a90, e = 0x25738c, ava = 0x9eddee4,
type = 163), line 615 in "filterentry.c"
[4] test_filter(op = 0x6645a90, e = 0x25738c, f = 0x9eddf04), line 98
in "filterentry.c"
[5] hdb_search(op = 0x6645a90, rs = 0xe87ffcb8), line 845 in "search.c"
[6] overlay_op_walk(op = 0x6645a90, rs = 0xe87ffcb8, which = 32768, oi
= 0x15c540, on = 0x8000), line 653 in "backover.c"
[7] over_op_func(op = 0x6645a90, rs = 0xe87ffcb8, which = op_search),
line 705 in "backover.c"
[8] fe_op_search(op = 0x6645a90, rs = 0xe87ffcb8), line 368 in "search.c"
[9] do_search(op = 0x6645a90, rs = 0xe87ffcb8), line 217 in "search.c"
[10] connection_operation(ctx = 0xe87ffe08, arg_v = 0x6645a90), line
1084 in "connection.c"
[11] connection_read_thread(ctx = 0xe87ffe08, argv = 0xe), line 1211
in "connection.c"
[12] ldap_int_thread_pool_wrapper(xpool = 0x1dad18), line 625 in "tpool.c"
(dbx) lsit
lsit: not found
(dbx) list
489 for ( a = sub->ad_type; a; a=a->sat_sup ) {
490 if ( a == super->ad_type ) break;
491 }
492 if( !a ) {
493 return 0;
494 }
495
496 /* ensure sub does support all flags of super */
497 lr = sub->ad_tags.bv_len ? SLAP_DESC_TAG_RANGE : 0;
498 if(( super->ad_flags & ( sub->ad_flags | lr )) !=
super->ad_flags ) {
(dbx) print *a
dbx: reference through nil pointer
(dbx) quit
--
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