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Subject: Re: (ITS#6821) ldap modify with ndb backend causes segfault
From: Nathanael Anderson anderson@vailsys.com
To: Howard Chu hyc@symas.com
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The fix commited to cvs resolved this issue.
On Wed, 2011-02-02 at 14:41 -0800, Howard Chu wrote:
Nathanael Anderson wrote:
Let me know if this doesn't have what you need.
Can you also print *ml and *ml->sml_desc ? It looks like you're performing a
modify on an attribute that back-ndb doesn't already know about.
Program terminated with signal 11, Segmentation fault.
#0 0x000000000050cce9 in ndb_modify_internal (op=0x12daaf0,
NA=0x7fa45b342570, text=0x7fa45b343a30,
textbuf=0x7fa45b3425e0 "\340\345R\001", textlen=256) at
modify.cpp:397
397 if ( modai[nai]->na_flag& NDB_INFO_INDEX )
(gdb) bt
#0 0x000000000050cce9 in ndb_modify_internal (op=0x12daaf0,
NA=0x7fa45b342570, text=0x7fa45b343a30,
textbuf=0x7fa45b3425e0 "\340\345R\001", textlen=256) at
modify.cpp:397
#1 0x000000000050d769 in ndb_back_modify (op=0x12daaf0,
rs=0x7fa45b343a10)
at modify.cpp:594
#2 0x0000000000466510 in fe_op_modify (op=0x12daaf0, rs=0x7fa45b343a10)
at modify.c:303
#3 0x0000000000465d80 in do_modify (op=0x12daaf0, rs=0x7fa45b343a10)
at modify.c:177
#4 0x00000000004452b8 in connection_operation (ctx=0x7fa45b343b50,
arg_v=0x12daaf0) at connection.c:1113
#5 0x0000000000445856 in connection_read_thread (ctx=0x7fa45b343b50,
argv=0xe)
at connection.c:1249
#6 0x00007fa4602b9e09 in ldap_int_thread_pool_wrapper (xpool=0x11b83f0)
at tpool.c:685
#7 0x00007fa45eab29ca in start_thread () from /lib/libpthread.so.0
#8 0x00007fa45d27a70d in clone () from /lib/libc.so.6
#9 0x0000000000000000 in ?? ()
On Wed, 2011-02-02 at 14:04 -0800, Howard Chu wrote:
Nathanael Anderson wrote:
I tried to build openldap without compilier optimiations, but its
ignoring CFLAGS and CXXFLAGS when i set them to
export CFLAGS = "-g -ggdb"
export CXXFLAGS=$CFLAGS
use
make AC_CFLAGS=-g
and still passes -O2, doesn't pass -ggdb. what am I missing to disable
optimizations when building.
On Wed, 2011-02-02 at 13:19 -0800, Howard Chu wrote:
Unfortunately this trace is nonsensical because of the compiler optimizations.
It shows a call path that simply doesn't exist (connection_read -> syslog ->
connection_operation).
Please try again with all optimization turned off in your build.
Nathanael Anderson wrote:
Program terminated with signal 11, Segmentation fault.
#0 0x00000000004c4a2d in ndb_modify_internal (op=0x1ae74c0, NA=0x0,
text=<value optimized out>, textbuf=<value optimized out>,
textlen=<value optimized out>)
at modify.cpp:416
416 for ( i=0; i<nai; i++ ) {
(gdb) bt
#0 0x00000000004c4a2d in ndb_modify_internal (op=0x1ae74c0, NA=0x0,
text=<value optimized out>, textbuf=<value optimized out>,
textlen=<value optimized out>)
at modify.cpp:416
#1 0x00000000004c5605 in ndb_back_modify (op=0x1bcd940,
rs=0x7f1d3a7bd9f0) at modify.cpp:646
#2 0x0000000000450141 in fe_op_modify (op=0x1bcd940, rs=0x7f1d3a7bd9f0)
at modify.c:211
#3 0x0000000000450a96 in do_modify (op=0x1bcd940, rs=0x7f1d3a7bd9f0) at
modify.c:142
#4 0x0000000000437b78 in connection_operation (ctx=0x7f1d3a7bdb50,
arg_v=<value optimized out>) at connection.c:1129
#5 0x000000000043876d in syslog (ctx=<value optimized out>, argv=<value
optimized out>) at /usr/include/bits/syslog.h:32
#6 connection_read (ctx=<value optimized out>, argv=<value optimized
out>) at connection.c:1429
#7 connection_read_thread (ctx=<value optimized out>, argv=<value
optimized out>) at connection.c:1242
#8 0x00007f1d3ef30b48 in ldap_int_thread_pool_wrapper (xpool=<value
optimized out>) at tpool.c:685
#9 0x00007f1d3d72b9ca in start_thread () from /lib/libpthread.so.0
#10 0x00007f1d3bef370d in clone () from /lib/libc.so.6
#11 0x0000000000000000 in ?? ()
On Wed, 2011-02-02 at 01:47 -0800, Howard Chu wrote:
> This trace has no line numbers, so it's not very useful. Make sure you
> use an
> unstripped binary.
>
>> Program terminated with signal 11, Segmentation fault.
>> #0 0x00000000004c491d in ndb_modify_internal ()
>> (gdb) bt
>> #0 0x00000000004c491d in ndb_modify_internal ()
>> #1 0x00000000004c5515 in ndb_back_modify ()
>> #2 0x0000000000450001 in fe_op_modify ()
>> #3 0x0000000000450956 in do_modify ()
>> #4 0x0000000000437ad8 in ?? ()
>> #5 0x00000000004386cd in ?? ()
>> #6 0x00007ff79450ab08 in ldap_int_thread_pool_wrapper (xpool=<value
> optimized
>> out>) at tpool.c:685
>> #7 0x00007ff792d059ca in start_thread () from /lib/libpthread.so.0
>> #8 0x00007ff7914cd70d in clone () from /lib/libc.so.6
>> #9 0x0000000000000000 in ?? ()
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