Re: (ITS#7631) Overlay to rewrite value of attribute using regex
by bart＠icm.edu.pl
--=_c864110a076fc513331e0370bcb9adbe
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I put patch here because the ftp server is full.
DB
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dGF0aWMgaW50CityZXdhdHRfaW5pdGlhbGl6ZSggdm9pZCApIHsKKwlpbnQgcmM7CisJcmV3YXR0
X292bC5vbl9iaS5iaV90eXBlID0gInJld2F0dCI7CisKKwlyZXdhdHRfb3ZsLm9uX2JpLmJpX2Ri
X2Rlc3Ryb3kgPSByZXdhdHRfZGJfZGVzdHJveTsKKwlyZXdhdHRfb3ZsLm9uX2JpLmJpX29wX3Nl
YXJjaCA9IHJld2F0dF9zZWFyY2g7CisJcmV3YXR0X292bC5vbl9iaS5iaV9jZl9vY3MgPSByZXdh
dHRfb2NzOworCQorCURlYnVnKCBMREFQX0RFQlVHX1RSQUNFLCAicmV3YXR0X2luaXRpYWxpemU6
IHJld2F0dF9vdmwub25fYmkuYmlfdHlwZT0gICVzXG4iLCByZXdhdHRfb3ZsLm9uX2JpLmJpX3R5
cGUgLCAwLDAgKTsKKwlyYyA9IGNvbmZpZ19yZWdpc3Rlcl9zY2hlbWEgKCByZXdhdHRfY2ZnLHJl
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LjUuNAoK
--=_c864110a076fc513331e0370bcb9adbe--
8 years, 5 months
(ITS#7631) Overlay to rewrite value of attribute using regex
by bart＠icm.edu.pl
Full_Name: Dominik Bartkiewicz
Version:
OS: Linux
URL:
Submission from: (NULL) (89.73.105.138)
A simple overlay allows override attribute values​​.
In our case, it we replicate users date from three different servers and we
wanted to override attributes such as homeDirectory, shell.
a sample config:
overlay rewatt
ra_attribute homeDirectory
ra_regex "home/(users|staff|guest)"
ra_sub "icm/hydra/home/local"
DB
8 years, 5 months
Re: (ITS#7627) [Patch] Fix segfault in slaptest
by hyc＠symas.com
jsynacek(a)redhat.com wrote:
> Full_Name: Jan Synacek
> Version: master
> OS: Linux - Fedora 18
> URL: http://jsynacek.fedorapeople.org/openldap/slaptest/0001-Fix-segfault-in-s...
> Submission from: (NULL) (209.132.186.34)
>
>
> Consider the following configuration:
> http://jsynacek.fedorapeople.org/openldap/slaptest/slapd-segfault.conf
>
> When an overlay is specified after the 'database monitor', slaptest segfaults.
> I'm not sure whether such configuration makes much sense, however I think that
> slaptest shouldn't segfault.
>
> To reproduce, use the above config and run:
> slapd -Tt -f slapd-segfault.conf -F /path/to/a/dir
Unable to reproduce any of this. No crash, and no uninit'd memory references
in valgrind. I think something is corrupted in your source or build tree.
>
> Backtrace:
> #0 0x0000003385009b70 in pthread_mutex_lock () from /usr/lib64/libpthread.so.0
> #1 0x00007ffff7da524d in ldap_pvt_thread_mutex_lock (mutex=0x25) at
> thr_posix.c:296
> #2 0x00000000005574b9 in monitor_cache_get (mi=0x1d, ndn=0x7fffffffde30,
> ep=0x7fffffffde28) at cache.c:161
> #3 0x000000000051a10d in monitor_back_unregister_entry_attrs (ndn_in=0x908230,
> target_a=0x0, target_cb=0xa70030,
> nbase=0x0, scope=0, filter=0x0) at init.c:1520
> #4 0x000000000051a5b0 in monitor_back_unregister_entry_callback (ndn=0x908230,
> cb=0xa70030, nbase=0x0, scope=0,
> filter=0x0) at init.c:1632
> #5 0x00000000004f6f19 in bdb_monitor_db_close (be=0x907d70) at monitor.c:500
> #6 0x00000000004ef0b4 in bdb_db_close (be=0x907d70, cr=0x0) at init.c:595
> #7 0x0000000000454ad5 in backend_shutdown (be=0x907d70) at backend.c:383
> #8 0x00000000004814a9 in slap_shutdown (be=0x0) at init.c:232
> #9 0x00000000004de90d in slap_tool_destroy () at slapcommon.c:936
> #10 0x00000000004e0435 in slaptest (argc=6, argv=0x7fffffffe228) at
> slaptest.c:116
> #11 0x000000000041a9f5 in main (argc=6, argv=0x7fffffffe228) at main.c:665
>
> Notice the corrupt 'mi' pointer in frame #2.
>
> The segfault does not always appear, so here is the corresponding valgrind
> output:
> ==6751== Memcheck, a memory error detector
> ==6751== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
> ==6751== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
> ==6751== Command: /home/jsynacek/work/2-upstream/openldap-git/servers/slapd/.libs/lt-slapd
> -Tt -f slapd-segfault.conf -F ./testconf
> ==6751==
> 51c1a34e bdb_db_open: database "dc=example,dc=com": unclean shutdown detected;
> attempting recovery.
> 51c1a34e bdb_db_open: warning - no DB_CONFIG file found in directory
> /var/lib/ldap: (2).
> Expect poor performance for suffix "dc=example,dc=com".
> 51c1a34e bdb_db_open: database "dc=example,dc=com": recovery skipped in
> read-only mode. Run manual recovery if errors are encountered.
> config file testing succeeded
> ==6751== Conditional jump or move depends on uninitialised value(s)
> ==6751== at 0x519E9D: monitor_back_unregister_entry_attrs (init.c:1473)
> ==6751== by 0x51A5AF: monitor_back_unregister_entry_callback (init.c:1632)
> ==6751== by 0x4F6F18: bdb_monitor_db_close (monitor.c:500)
> ==6751== by 0x4EF0B3: bdb_db_close (init.c:595)
> ==6751== by 0x454AD4: backend_shutdown (backend.c:383)
> ==6751== by 0x4814A8: slap_shutdown (init.c:232)
> ==6751== by 0x4DE90C: slap_tool_destroy (slapcommon.c:936)
> ==6751== by 0x4E0434: slaptest (slaptest.c:116)
> ==6751== by 0x41A9F4: main (main.c:665)
> ==6751==
> ==6751== Conditional jump or move depends on uninitialised value(s)
> ==6751== at 0x5573EA: monitor_cache_get (cache.c:150)
> ==6751== by 0x51A10C: monitor_back_unregister_entry_attrs (init.c:1520)
> ==6751== by 0x51A5AF: monitor_back_unregister_entry_callback (init.c:1632)
> ==6751== by 0x4F6F18: bdb_monitor_db_close (monitor.c:500)
> ==6751== by 0x4EF0B3: bdb_db_close (init.c:595)
> ==6751== by 0x454AD4: backend_shutdown (backend.c:383)
> ==6751== by 0x4814A8: slap_shutdown (init.c:232)
> ==6751== by 0x4DE90C: slap_tool_destroy (slapcommon.c:936)
> ==6751== by 0x4E0434: slaptest (slaptest.c:116)
> ==6751== by 0x41A9F4: main (main.c:665)
> ==6751==
> ==6751== Use of uninitialised value of size 8
> ==6751== at 0x3385009B70: pthread_mutex_lock (in
> /usr/lib64/libpthread-2.16.so)
> ==6751== by 0x4C2524C: ldap_pvt_thread_mutex_lock (thr_posix.c:296)
> ==6751== by 0x5574B8: monitor_cache_get (cache.c:161)
> ==6751== by 0x51A10C: monitor_back_unregister_entry_attrs (init.c:1520)
> ==6751== by 0x51A5AF: monitor_back_unregister_entry_callback (init.c:1632)
> ==6751== by 0x4F6F18: bdb_monitor_db_close (monitor.c:500)
> ==6751== by 0x4EF0B3: bdb_db_close (init.c:595)
> ==6751== by 0x454AD4: backend_shutdown (backend.c:383)
> ==6751== by 0x4814A8: slap_shutdown (init.c:232)
> ==6751== by 0x4DE90C: slap_tool_destroy (slapcommon.c:936)
> ==6751== by 0x4E0434: slaptest (slaptest.c:116)
> ==6751== by 0x41A9F4: main (main.c:665)
> ==6751==
> ==6751== Invalid read of size 4
> ==6751== at 0x3385009B70: pthread_mutex_lock (in
> /usr/lib64/libpthread-2.16.so)
> ==6751== by 0x4C2524C: ldap_pvt_thread_mutex_lock (thr_posix.c:296)
> ==6751== by 0x5574B8: monitor_cache_get (cache.c:161)
> ==6751== by 0x51A10C: monitor_back_unregister_entry_attrs (init.c:1520)
> ==6751== by 0x51A5AF: monitor_back_unregister_entry_callback (init.c:1632)
> ==6751== by 0x4F6F18: bdb_monitor_db_close (monitor.c:500)
> ==6751== by 0x4EF0B3: bdb_db_close (init.c:595)
> ==6751== by 0x454AD4: backend_shutdown (backend.c:383)
> ==6751== by 0x4814A8: slap_shutdown (init.c:232)
> ==6751== by 0x4DE90C: slap_tool_destroy (slapcommon.c:936)
> ==6751== by 0x4E0434: slaptest (slaptest.c:116)
> ==6751== by 0x41A9F4: main (main.c:665)
> ==6751== Address 0x37 is not stack'd, malloc'd or (recently) free'd
> ==6751==
> ==6751==
> ==6751== Process terminating with default action of signal 11 (SIGSEGV)
> ==6751== Access not within mapped region at address 0x37
> ==6751== at 0x3385009B70: pthread_mutex_lock (in
> /usr/lib64/libpthread-2.16.so)
> ==6751== by 0x4C2524C: ldap_pvt_thread_mutex_lock (thr_posix.c:296)
> ==6751== by 0x5574B8: monitor_cache_get (cache.c:161)
> ==6751== by 0x51A10C: monitor_back_unregister_entry_attrs (init.c:1520)
> ==6751== by 0x51A5AF: monitor_back_unregister_entry_callback (init.c:1632)
> ==6751== by 0x4F6F18: bdb_monitor_db_close (monitor.c:500)
> ==6751== by 0x4EF0B3: bdb_db_close (init.c:595)
> ==6751== by 0x454AD4: backend_shutdown (backend.c:383)
> ==6751== by 0x4814A8: slap_shutdown (init.c:232)
> ==6751== by 0x4DE90C: slap_tool_destroy (slapcommon.c:936)
> ==6751== by 0x4E0434: slaptest (slaptest.c:116)
> ==6751== by 0x41A9F4: main (main.c:665)
> ==6751== If you believe this happened as a result of a stack
> ==6751== overflow in your program's main thread (unlikely but
> ==6751== possible), you can try to increase the size of the
> ==6751== main thread stack using the --main-stacksize= flag.
> ==6751== The main thread stack size used in this run was 8388608.
> ==6751==
> ==6751== HEAP SUMMARY:
> ==6751== in use at exit: 1,784,260 bytes in 10,532 blocks
> ==6751== total heap usage: 20,806 allocs, 10,274 frees, 4,333,045 bytes
> allocated
> ==6751==
> ==6751== LEAK SUMMARY:
> ==6751== definitely lost: 16 bytes in 1 blocks
> ==6751== indirectly lost: 0 bytes in 0 blocks
> ==6751== possibly lost: 0 bytes in 0 blocks
> ==6751== still reachable: 1,784,244 bytes in 10,531 blocks
> ==6751== suppressed: 0 bytes in 0 blocks
> ==6751== Rerun with --leak-check=full to see details of leaked memory
> ==6751==
> ==6751== For counts of detected and suppressed errors, rerun with: -v
> ==6751== Use --track-origins=yes to see where uninitialised values come from
> ==6751== ERROR SUMMARY: 11 errors from 9 contexts (suppressed: 2 from 2)
>
> I'm not sure if my patch is correct. I feel it's more like a workaround, so feel
> free to modify it if that's the case.
>
>
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
8 years, 5 months
Re: (ITS#7628) back-mdb bug with test064-constraint
by hyc＠symas.com
h.b.furuseth(a)usit.uio.no wrote:
> Full_Name: Hallvard B Furuseth
> Version: master, 7c6b599de6d7c0e10aa8bf6920ca07d94605e8c2
> OS: Linux amd64
> URL:
> Submission from: (NULL) (129.240.203.186)
> Submitted by: hallvard
>
>
> id2entry.c:mdb_opinfo_get() renews a txn which is in use. It gets
> EINVAL, which it does not catch. Caught by this patch and test064:
Fixed now in master. I've left this assert in place as well, it obviously
Should Never Happen.
>
> index 84de09d..a247974 100644
> --- a/servers/slapd/back-mdb/id2entry.c
> +++ b/servers/slapd/back-mdb/id2entry.c
> @@ -507,3 +507,4 @@ mdb_opinfo_get( Operation *op, struct mdb_info *mdb, int
> rdonly, mdb_op_info **m
> if ( renew ) {
> - mdb_txn_renew( moi->moi_txn );
> + rc = mdb_txn_renew( moi->moi_txn );
> + assert(rc == MDB_SUCCESS);
> }
>
> Core file in ada:/home/hallvard/openldap.g/tests/core.
>
>
>
> #2 0x00007ff6a1609301 in *__GI___assert_fail (assertion=0x601014 "rc == 0",
> file=<value optimized out>, line=509,
> function=0x601141 "mdb_opinfo_get") at assert.c:81
> #3 0x0000000000515db1 in mdb_opinfo_get (op=0x7ff69e411130, mdb=0x7ff6a2a02010,
> rdonly=1, moip=0x7ff69e280d08)
> at id2entry.c:509
> #4 0x00000000004f2bed in mdb_search (op=0x7ff69e411130, rs=0x7ff69e4112a0) at
> search.c:343
> #5 0x00000000004c4f08 in overlay_op_walk (op=0x7ff69e411130, rs=0x7ff69e4112a0,
> which=op_search, oi=0x15b30e0, on=0x0)
> at backover.c:691
> #6 0x00000000004c511f in over_op_func (op=0x7ff69e411130, rs=0x7ff69e4112a0,
> which=op_search) at backover.c:743
> #7 0x00000000004c5207 in over_op_search (op=0x7ff69e411130, rs=0x7ff69e4112a0)
> at backover.c:770
> #8 0x000000000052a197 in constraint_violation (c=0x15dc620, bv=0x1af6f90,
> op=0x17c8cf0) at constraint.c:666
> #9 0x000000000052a82a in constraint_add (op=0x17c8cf0, rs=0x7ff69e411a60) at
> constraint.c:812
> #10 0x00000000004c4e69 in overlay_op_walk (op=0x17c8cf0, rs=0x7ff69e411a60,
> which=op_add, oi=0x15b30e0, on=0x15b32c0)
> at backover.c:681
> #11 0x00000000004c511f in over_op_func (op=0x17c8cf0, rs=0x7ff69e411a60,
> which=op_add) at backover.c:743
> #12 0x00000000004c52af in over_op_add (op=0x17c8cf0, rs=0x7ff69e411a60) at
> backover.c:794
> #13 0x000000000043aa44 in fe_op_add (op=0x17c8cf0, rs=0x7ff69e411a60) at
> add.c:334
> #14 0x000000000043a341 in do_add (op=0x17c8cf0, rs=0x7ff69e411a60) at add.c:194
> #15 0x0000000000430da3 in connection_operation (ctx=0x7ff69e411b90,
> arg_v=0x17c8cf0) at connection.c:1155
> #16 0x0000000000431344 in connection_read_thread (ctx=0x7ff69e411b90, argv=0xb)
> at connection.c:1291
> #17 0x00000000005953c5 in ldap_int_thread_pool_wrapper (xpool=0x1543920) at
> tpool.c:688
>
>
> (gdb) frame 3
> #3 0x0000000000515db1 in mdb_opinfo_get (op=0x7ff69e411130, mdb=0x7ff6a2a02010,
> rdonly=1, moip=0x7ff69e280d08)
> at id2entry.c:509
> 509 assert(rc == MDB_SUCCESS);
> (gdb) info locals
> rc = 22
> renew = 1
> data = 0x1af36b0
> ctx = 0x7ff69e411b90
> moi = 0x7ff69e280d10
> oex = 0x0
> __PRETTY_FUNCTION__ = "mdb_opinfo_get"
> (gdb) p *moi
> $1 = {moi_oe = {oe_next = {sle_next = 0x7ff69e411850}, oe_key = 0x7ff6a2a02010},
> moi_txn = 0x1af36b0, moi_ref = 0,
> moi_flag = 1 '\001'}
> (gdb) p *moi->moi_txn
> $2 = {mt_parent = 0x0, mt_child = 0x0, mt_next_pgno = 31, mt_txnid = 51, mt_env
> = 0x17c0920, mt_free_pgs = 0x0,
> mt_u = {dirty_list = 0x7ff6a2bd5080, reader = 0x7ff6a2bd5080}, mt_dbxs =
> 0x17baa80, mt_dbs = 0x1af3718,
> mt_cursors = 0x0, mt_dbflags = 0x1af4f78 "\b\b\n\b\b\b\n\n\n\n\n", mt_numdbs =
> 11, mt_flags = 1, mt_dirty_room = 0,
> mt_toggle = 1}
>
> The EINVAL was returned because mt_dbxs != NULL.
>
>
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
8 years, 5 months
Re: (ITS#6970)
by michael＠stroeder.com
breuil(a)craig.fr wrote:
> after being adviced to try with mdb backend instead, which doesnt use
> locking, slapd exploded as soon as i had enabled the memberOf &
> autoGroup overlays and one client tried to connect to the server:
The last release you mentioned in this ITS was 2.4.31. Is that the version
you're still using?
You should not use back-mdb with this release. Use at least 2.4.35 or better
current RE24 from git repo.
http://www.openldap.org/devel/gitweb.cgi?p=openldap.git;a=tree;h=refs/hea...
Ciao, Michael.
8 years, 5 months
(ITS#7628) back-mdb bug with test064-constraint
by h.b.furuseth＠usit.uio.no
Full_Name: Hallvard B Furuseth
Version: master, 7c6b599de6d7c0e10aa8bf6920ca07d94605e8c2
OS: Linux amd64
URL:
Submission from: (NULL) (129.240.203.186)
Submitted by: hallvard
id2entry.c:mdb_opinfo_get() renews a txn which is in use. It gets
EINVAL, which it does not catch. Caught by this patch and test064:
index 84de09d..a247974 100644
--- a/servers/slapd/back-mdb/id2entry.c
+++ b/servers/slapd/back-mdb/id2entry.c
@@ -507,3 +507,4 @@ mdb_opinfo_get( Operation *op, struct mdb_info *mdb, int
rdonly, mdb_op_info **m
if ( renew ) {
- mdb_txn_renew( moi->moi_txn );
+ rc = mdb_txn_renew( moi->moi_txn );
+ assert(rc == MDB_SUCCESS);
}
Core file in ada:/home/hallvard/openldap.g/tests/core.
#2 0x00007ff6a1609301 in *__GI___assert_fail (assertion=0x601014 "rc == 0",
file=<value optimized out>, line=509,
function=0x601141 "mdb_opinfo_get") at assert.c:81
#3 0x0000000000515db1 in mdb_opinfo_get (op=0x7ff69e411130, mdb=0x7ff6a2a02010,
rdonly=1, moip=0x7ff69e280d08)
at id2entry.c:509
#4 0x00000000004f2bed in mdb_search (op=0x7ff69e411130, rs=0x7ff69e4112a0) at
search.c:343
#5 0x00000000004c4f08 in overlay_op_walk (op=0x7ff69e411130, rs=0x7ff69e4112a0,
which=op_search, oi=0x15b30e0, on=0x0)
at backover.c:691
#6 0x00000000004c511f in over_op_func (op=0x7ff69e411130, rs=0x7ff69e4112a0,
which=op_search) at backover.c:743
#7 0x00000000004c5207 in over_op_search (op=0x7ff69e411130, rs=0x7ff69e4112a0)
at backover.c:770
#8 0x000000000052a197 in constraint_violation (c=0x15dc620, bv=0x1af6f90,
op=0x17c8cf0) at constraint.c:666
#9 0x000000000052a82a in constraint_add (op=0x17c8cf0, rs=0x7ff69e411a60) at
constraint.c:812
#10 0x00000000004c4e69 in overlay_op_walk (op=0x17c8cf0, rs=0x7ff69e411a60,
which=op_add, oi=0x15b30e0, on=0x15b32c0)
at backover.c:681
#11 0x00000000004c511f in over_op_func (op=0x17c8cf0, rs=0x7ff69e411a60,
which=op_add) at backover.c:743
#12 0x00000000004c52af in over_op_add (op=0x17c8cf0, rs=0x7ff69e411a60) at
backover.c:794
#13 0x000000000043aa44 in fe_op_add (op=0x17c8cf0, rs=0x7ff69e411a60) at
add.c:334
#14 0x000000000043a341 in do_add (op=0x17c8cf0, rs=0x7ff69e411a60) at add.c:194
#15 0x0000000000430da3 in connection_operation (ctx=0x7ff69e411b90,
arg_v=0x17c8cf0) at connection.c:1155
#16 0x0000000000431344 in connection_read_thread (ctx=0x7ff69e411b90, argv=0xb)
at connection.c:1291
#17 0x00000000005953c5 in ldap_int_thread_pool_wrapper (xpool=0x1543920) at
tpool.c:688
(gdb) frame 3
#3 0x0000000000515db1 in mdb_opinfo_get (op=0x7ff69e411130, mdb=0x7ff6a2a02010,
rdonly=1, moip=0x7ff69e280d08)
at id2entry.c:509
509 assert(rc == MDB_SUCCESS);
(gdb) info locals
rc = 22
renew = 1
data = 0x1af36b0
ctx = 0x7ff69e411b90
moi = 0x7ff69e280d10
oex = 0x0
__PRETTY_FUNCTION__ = "mdb_opinfo_get"
(gdb) p *moi
$1 = {moi_oe = {oe_next = {sle_next = 0x7ff69e411850}, oe_key = 0x7ff6a2a02010},
moi_txn = 0x1af36b0, moi_ref = 0,
moi_flag = 1 '\001'}
(gdb) p *moi->moi_txn
$2 = {mt_parent = 0x0, mt_child = 0x0, mt_next_pgno = 31, mt_txnid = 51, mt_env
= 0x17c0920, mt_free_pgs = 0x0,
mt_u = {dirty_list = 0x7ff6a2bd5080, reader = 0x7ff6a2bd5080}, mt_dbxs =
0x17baa80, mt_dbs = 0x1af3718,
mt_cursors = 0x0, mt_dbflags = 0x1af4f78 "\b\b\n\b\b\b\n\n\n\n\n", mt_numdbs =
11, mt_flags = 1, mt_dirty_room = 0,
mt_toggle = 1}
The EINVAL was returned because mt_dbxs != NULL.
8 years, 5 months
(ITS#6970)
by breuil＠craig.fr
Hi,
after being adviced to try with mdb backend instead, which doesnt use
locking, slapd exploded as soon as i had enabled the memberOf &
autoGroup overlays and one client tried to connect to the server:
51c1b560 => mdb_search
51c1b560 mdb_dn2entry("dc=myorg")
51c1b560 => mdb_dn2id("dc=myorg")
51c1b560 <= mdb_dn2id: got id=0x1
51c1b560 => mdb_entry_decode:
51c1b560 <= mdb_entry_decode
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffb1fd3700 (LWP 15475)]
autogroup_response (op=0x7ffff82d52b0, rs=0x7fffb1fd2a50) at autogroup.c:927
927 autogroup_def_t *agd = agi->agi_def;
(gdb) bt
#0 autogroup_response (op=0x7ffff82d52b0, rs=0x7fffb1fd2a50) at
autogroup.c:927
#1 0x00007ffff7f7f598 in over_back_response (op=0x7ffff82d52b0,
rs=0x7fffb1fd2a50) at ../../../../servers/slapd/backover.c:237
#2 0x00007ffff7f227d6 in slap_response_play
(op=op@entry=0x7ffff82d52b0, rs=rs@entry=0x7fffb1fd2a50) at
../../../../servers/slapd/result.c:507
#3 0x00007ffff7f25261 in slap_send_search_entry (op=0x7ffff82d52b0,
rs=0x7fffb1fd2a50) at ../../../../servers/slapd/result.c:1008
#4 0x00007ffff3213600 in mdb_search (op=0x7ffff82d52b0, rs=<optimized
out>) at ../../../../../servers/slapd/back-mdb/search.c:852
#5 0x00007ffff7f801c6 in overlay_op_walk (op=op@entry=0x7ffff82d52b0,
rs=0x7fffb1fd2a50, which=op_search, oi=0x7ffff82e6e50, on=0x0) at
../../../../servers/slapd/backover.c:671
#6 0x00007ffff7f8031b in over_op_func (op=0x7ffff82d52b0, rs=<optimized
out>, which=<optimized out>) at ../../../../servers/slapd/backover.c:723
#7 0x00007ffff7f15641 in fe_op_search (op=0x7ffff82d52b0,
rs=0x7fffb1fd2a50) at ../../../../servers/slapd/search.c:402
#8 0x00007ffff7f14f06 in do_search (op=0x7ffff82d52b0,
rs=0x7fffb1fd2a50) at ../../../../servers/slapd/search.c:247
#9 0x00007ffff7f12961 in connection_operation
(ctx=ctx@entry=0x7fffb1fd2ba0, arg_v=arg_v@entry=0x7ffff82d52b0) at
../../../../servers/slapd/connection.c:1150
#10 0x00007ffff7f12c84 in connection_read_thread (ctx=0x7fffb1fd2ba0,
argv=<optimized out>) at ../../../../servers/slapd/connection.c:1286
#11 0x00007ffff7a73ff3 in ?? () from
/usr/lib/x86_64-linux-gnu/libldap_r-2.4.so.2
#12 0x00007ffff5c66b50 in start_thread () from
/lib/x86_64-linux-gnu/libpthread.so.0
#13 0x00007ffff59b0a7d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#14 0x0000000000000000 in ?? ()
(gdb) p agi
$1 = (autogroup_info_t *) 0x0
So mdb doesnt seem to be an option here...
--
Landry Breuil
Mouton a 5 pattes du CRAIG
8 years, 5 months
(ITS#7627) [Patch] Fix segfault in slaptest
by jsynacek＠redhat.com
Full_Name: Jan Synacek
Version: master
OS: Linux - Fedora 18
URL: http://jsynacek.fedorapeople.org/openldap/slaptest/0001-Fix-segfault-in-s...
Submission from: (NULL) (209.132.186.34)
Consider the following configuration:
http://jsynacek.fedorapeople.org/openldap/slaptest/slapd-segfault.conf
When an overlay is specified after the 'database monitor', slaptest segfaults.
I'm not sure whether such configuration makes much sense, however I think that
slaptest shouldn't segfault.
To reproduce, use the above config and run:
slapd -Tt -f slapd-segfault.conf -F /path/to/a/dir
Backtrace:
#0 0x0000003385009b70 in pthread_mutex_lock () from /usr/lib64/libpthread.so.0
#1 0x00007ffff7da524d in ldap_pvt_thread_mutex_lock (mutex=0x25) at
thr_posix.c:296
#2 0x00000000005574b9 in monitor_cache_get (mi=0x1d, ndn=0x7fffffffde30,
ep=0x7fffffffde28) at cache.c:161
#3 0x000000000051a10d in monitor_back_unregister_entry_attrs (ndn_in=0x908230,
target_a=0x0, target_cb=0xa70030,
nbase=0x0, scope=0, filter=0x0) at init.c:1520
#4 0x000000000051a5b0 in monitor_back_unregister_entry_callback (ndn=0x908230,
cb=0xa70030, nbase=0x0, scope=0,
filter=0x0) at init.c:1632
#5 0x00000000004f6f19 in bdb_monitor_db_close (be=0x907d70) at monitor.c:500
#6 0x00000000004ef0b4 in bdb_db_close (be=0x907d70, cr=0x0) at init.c:595
#7 0x0000000000454ad5 in backend_shutdown (be=0x907d70) at backend.c:383
#8 0x00000000004814a9 in slap_shutdown (be=0x0) at init.c:232
#9 0x00000000004de90d in slap_tool_destroy () at slapcommon.c:936
#10 0x00000000004e0435 in slaptest (argc=6, argv=0x7fffffffe228) at
slaptest.c:116
#11 0x000000000041a9f5 in main (argc=6, argv=0x7fffffffe228) at main.c:665
Notice the corrupt 'mi' pointer in frame #2.
The segfault does not always appear, so here is the corresponding valgrind
output:
==6751== Memcheck, a memory error detector
==6751== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
==6751== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
==6751== Command: /home/jsynacek/work/2-upstream/openldap-git/servers/slapd/.libs/lt-slapd
-Tt -f slapd-segfault.conf -F ./testconf
==6751==
51c1a34e bdb_db_open: database "dc=example,dc=com": unclean shutdown detected;
attempting recovery.
51c1a34e bdb_db_open: warning - no DB_CONFIG file found in directory
/var/lib/ldap: (2).
Expect poor performance for suffix "dc=example,dc=com".
51c1a34e bdb_db_open: database "dc=example,dc=com": recovery skipped in
read-only mode. Run manual recovery if errors are encountered.
config file testing succeeded
==6751== Conditional jump or move depends on uninitialised value(s)
==6751== at 0x519E9D: monitor_back_unregister_entry_attrs (init.c:1473)
==6751== by 0x51A5AF: monitor_back_unregister_entry_callback (init.c:1632)
==6751== by 0x4F6F18: bdb_monitor_db_close (monitor.c:500)
==6751== by 0x4EF0B3: bdb_db_close (init.c:595)
==6751== by 0x454AD4: backend_shutdown (backend.c:383)
==6751== by 0x4814A8: slap_shutdown (init.c:232)
==6751== by 0x4DE90C: slap_tool_destroy (slapcommon.c:936)
==6751== by 0x4E0434: slaptest (slaptest.c:116)
==6751== by 0x41A9F4: main (main.c:665)
==6751==
==6751== Conditional jump or move depends on uninitialised value(s)
==6751== at 0x5573EA: monitor_cache_get (cache.c:150)
==6751== by 0x51A10C: monitor_back_unregister_entry_attrs (init.c:1520)
==6751== by 0x51A5AF: monitor_back_unregister_entry_callback (init.c:1632)
==6751== by 0x4F6F18: bdb_monitor_db_close (monitor.c:500)
==6751== by 0x4EF0B3: bdb_db_close (init.c:595)
==6751== by 0x454AD4: backend_shutdown (backend.c:383)
==6751== by 0x4814A8: slap_shutdown (init.c:232)
==6751== by 0x4DE90C: slap_tool_destroy (slapcommon.c:936)
==6751== by 0x4E0434: slaptest (slaptest.c:116)
==6751== by 0x41A9F4: main (main.c:665)
==6751==
==6751== Use of uninitialised value of size 8
==6751== at 0x3385009B70: pthread_mutex_lock (in
/usr/lib64/libpthread-2.16.so)
==6751== by 0x4C2524C: ldap_pvt_thread_mutex_lock (thr_posix.c:296)
==6751== by 0x5574B8: monitor_cache_get (cache.c:161)
==6751== by 0x51A10C: monitor_back_unregister_entry_attrs (init.c:1520)
==6751== by 0x51A5AF: monitor_back_unregister_entry_callback (init.c:1632)
==6751== by 0x4F6F18: bdb_monitor_db_close (monitor.c:500)
==6751== by 0x4EF0B3: bdb_db_close (init.c:595)
==6751== by 0x454AD4: backend_shutdown (backend.c:383)
==6751== by 0x4814A8: slap_shutdown (init.c:232)
==6751== by 0x4DE90C: slap_tool_destroy (slapcommon.c:936)
==6751== by 0x4E0434: slaptest (slaptest.c:116)
==6751== by 0x41A9F4: main (main.c:665)
==6751==
==6751== Invalid read of size 4
==6751== at 0x3385009B70: pthread_mutex_lock (in
/usr/lib64/libpthread-2.16.so)
==6751== by 0x4C2524C: ldap_pvt_thread_mutex_lock (thr_posix.c:296)
==6751== by 0x5574B8: monitor_cache_get (cache.c:161)
==6751== by 0x51A10C: monitor_back_unregister_entry_attrs (init.c:1520)
==6751== by 0x51A5AF: monitor_back_unregister_entry_callback (init.c:1632)
==6751== by 0x4F6F18: bdb_monitor_db_close (monitor.c:500)
==6751== by 0x4EF0B3: bdb_db_close (init.c:595)
==6751== by 0x454AD4: backend_shutdown (backend.c:383)
==6751== by 0x4814A8: slap_shutdown (init.c:232)
==6751== by 0x4DE90C: slap_tool_destroy (slapcommon.c:936)
==6751== by 0x4E0434: slaptest (slaptest.c:116)
==6751== by 0x41A9F4: main (main.c:665)
==6751== Address 0x37 is not stack'd, malloc'd or (recently) free'd
==6751==
==6751==
==6751== Process terminating with default action of signal 11 (SIGSEGV)
==6751== Access not within mapped region at address 0x37
==6751== at 0x3385009B70: pthread_mutex_lock (in
/usr/lib64/libpthread-2.16.so)
==6751== by 0x4C2524C: ldap_pvt_thread_mutex_lock (thr_posix.c:296)
==6751== by 0x5574B8: monitor_cache_get (cache.c:161)
==6751== by 0x51A10C: monitor_back_unregister_entry_attrs (init.c:1520)
==6751== by 0x51A5AF: monitor_back_unregister_entry_callback (init.c:1632)
==6751== by 0x4F6F18: bdb_monitor_db_close (monitor.c:500)
==6751== by 0x4EF0B3: bdb_db_close (init.c:595)
==6751== by 0x454AD4: backend_shutdown (backend.c:383)
==6751== by 0x4814A8: slap_shutdown (init.c:232)
==6751== by 0x4DE90C: slap_tool_destroy (slapcommon.c:936)
==6751== by 0x4E0434: slaptest (slaptest.c:116)
==6751== by 0x41A9F4: main (main.c:665)
==6751== If you believe this happened as a result of a stack
==6751== overflow in your program's main thread (unlikely but
==6751== possible), you can try to increase the size of the
==6751== main thread stack using the --main-stacksize= flag.
==6751== The main thread stack size used in this run was 8388608.
==6751==
==6751== HEAP SUMMARY:
==6751== in use at exit: 1,784,260 bytes in 10,532 blocks
==6751== total heap usage: 20,806 allocs, 10,274 frees, 4,333,045 bytes
allocated
==6751==
==6751== LEAK SUMMARY:
==6751== definitely lost: 16 bytes in 1 blocks
==6751== indirectly lost: 0 bytes in 0 blocks
==6751== possibly lost: 0 bytes in 0 blocks
==6751== still reachable: 1,784,244 bytes in 10,531 blocks
==6751== suppressed: 0 bytes in 0 blocks
==6751== Rerun with --leak-check=full to see details of leaked memory
==6751==
==6751== For counts of detected and suppressed errors, rerun with: -v
==6751== Use --track-origins=yes to see where uninitialised values come from
==6751== ERROR SUMMARY: 11 errors from 9 contexts (suppressed: 2 from 2)
I'm not sure if my patch is correct. I feel it's more like a workaround, so feel
free to modify it if that's the case.
8 years, 5 months
Re: (ITS#7623) P_SUBP page inn MDB dirty_list
by hyc＠symas.com
This is a multi-part message in MIME format.
--------------010507020109080701050704
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Hallvard Breien Furuseth wrote:
> Howard Chu writes:
>> The flag is being propagated when the page grows and turns into a real page.
>> Fixed by this simple patch.
>> (...)
>> mp->mp_flags = fp->mp_flags | P_DIRTY;
>> + mp->mp_flags &= ~(P_SUBP|P_FAKE);
>> mp->mp_pad = fp->mp_pad;
>
> This fixes test043, but breaks test046-dds: ldapexop exits with 49
> (invalidCredentials) for "Refreshing the meeting as $BJORNSDN...".
> It passes without the patch. This is RE24 (4dc62839c2324b46bfd6)
> or RE24 + mdb.master (60086c1bc77fafecef27).
Try this instead. Currently testing it on my PC.
--
-- Howard Chu
CTO, Symas Corp. http://www.symas.com
Director, Highland Sun http://highlandsun.com/hyc/
Chief Architect, OpenLDAP http://www.openldap.org/project/
--------------010507020109080701050704
Content-Type: text/plain; charset=UTF-8;
name="dif.txt"
Content-Transfer-Encoding: 7bit
Content-Disposition: attachment;
filename="dif.txt"
diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index c9f98cc..33642c8 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -5190,6 +5190,7 @@ more:
MDB_page *mp;
unsigned int offset;
unsigned int i;
+ uint16_t fp_flags;
fp = NODEDATA(leaf);
if (flags == MDB_CURRENT) {
@@ -5209,6 +5210,7 @@ reuse:
offset = NODESIZE + sizeof(indx_t) + data->mv_size;
}
offset += offset & 1;
+ fp_flags = fp->mp_flags;
if (NODESIZE + sizeof(indx_t) + NODEKSZ(leaf) + NODEDSZ(leaf) +
offset >= mc->mc_txn->mt_env->me_nodemax) {
/* yes, convert it */
@@ -5232,6 +5234,7 @@ reuse:
offset = mc->mc_txn->mt_env->me_psize - NODEDSZ(leaf);
flags |= F_DUPDATA|F_SUBDATA;
dummy.md_root = mp->mp_pgno;
+ fp_flags &= ~(P_SUBP|P_FAKE);
} else {
/* no, just grow it */
rdata = &xdata;
@@ -5241,7 +5244,7 @@ reuse:
mp->mp_pgno = mc->mc_pg[mc->mc_top]->mp_pgno;
flags |= F_DUPDATA;
}
- mp->mp_flags = fp->mp_flags | P_DIRTY;
+ mp->mp_flags = fp_flags | P_DIRTY;
mp->mp_pad = fp->mp_pad;
mp->mp_lower = fp->mp_lower;
mp->mp_upper = fp->mp_upper + offset;
--------------010507020109080701050704--
8 years, 5 months
