Re: SEGV on syncRepl provider (ITS#3296)

[jongchoi@OpenLDAP.org]

Thanks for the log and backtrace.
It appears that this one is related to the previous issues, ITS#3172 and
ITS#3139 whose main cause was the behavior of the sockber stack upon error.
I suspect we didn't came up with a complete solution for this before and I
think it should deserve further discussions. How about starting a new ITS
thread on this ?
- Jong-Hyuk

----- Original Message ----- 
From: <richton@nbcs.rutgers.edu>
To: <openldap-its@OpenLDAP.org>
Sent: Tuesday, November 23, 2004 5:44 PM
Subject: Re: SEGV on syncRepl provider (ITS#3296)


> Here is the backtrace of a (SEGVd) run that has been logged at d=255. The
> log is too large to attach to the ITS, but I will provide it via e-mail to
> Jong-Hyuk and others upon request.
>
>
> Thread 3 (process 151676    ):
> #0  0xfee9d608 in _poll () from /usr/lib/libc.so.1
> #1  0xfee51e78 in _select () from /usr/lib/libc.so.1
> #2  0xfedce6b4 in select () from /usr/lib/libthread.so.1
> #3  0x00070fe0 in slapd_daemon_task (ptr=0x0) at daemon.c:1422
>
> Thread 2 (process 86140    ):
> #0  0xfee9f334 in _lwp_wait () from /usr/lib/libc.so.1
> #1  0xfedcd6bc in lwp_wait () from /usr/lib/libthread.so.1
> #2  0xfedc90f0 in _thrp_join () from /usr/lib/libthread.so.1
> #3  0x001837a0 in ldap_pvt_thread_join (thread=2, thread_return=0x0)
>     at thr_posix.c:151
> #4  0x00072b14 in slapd_daemon () at daemon.c:2037
> #5  0x00061184 in main (argc=6, argv=0xffbffce4) at main.c:713
>
> Thread 1 (process 217212    ):
> #0  0xff2507e0 in SSL_write () from /usr/local/lib/libssl.so.0.9.7
> #1  0x001ba5cc in sb_tls_write (sbiod=0x3e3920, buf=0xeb5af0, len=782)
>     at tls.c:594
> #2  0x001cd0f4 in sb_debug_write (sbiod=0x3e3880, buf=0xeb5af0, len=782)
>     at sockbuf.c:839
> #3  0x001cbc74 in ber_int_sb_write (sb=0x3d8f30, buf=0xeb5af0, len=782)
> #4  0x001c58dc in ber_flush (sb=0x3d8f30, ber=0xda33f630, freeit=0) at
io.c:243
> #5  0x0008b1f4 in send_ldap_ber (conn=0x3e5fc8, ber=0xda33f630) at
result.c:176
> #6  0x0008f0f4 in slap_send_search_entry (op=0x3f9f20, rs=0xda3ffd58)
>     at result.c:1304
> #7  0x00112394 in hdb_do_search () at tools.c:288
> #8  0x0010e96c in hdb_search () at tools.c:288
> #9  0x00079ed8 in do_search (op=0x3f9f20, rs=0xda3ffd58) at search.c:412
> #10 0x0007636c in connection_operation (ctx=0xda3ffe14, arg_v=0x3f9f20)
>     at connection.c:1079
> #11 0x00182470 in ldap_int_thread_pool_wrapper (xpool=0x33d758) at
tpool.c:467
>
>