ptloader segfaults gone in Kolab 3.4?
Franz Skale
i.bin at dah.am
Fri Apr 3 20:50:28 CEST 2015
Hi,
sorry, but the last time i forgot to egrep 'segfault|signaled'.
The segfault patch doesn't exaplain the problem.
I now created a new backtrace with more details:
Core was generated by `ptloader -d9'.
Program terminated with signal 6, Aborted.
#0 0x00007f13554a6107 in raise () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0 0x00007f13554a6107 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f13554a74e8 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x00007f13554e8f3d in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3 0x00007f13554ebde1 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#4 0x00007f13554eceb0 in malloc () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x00007f13582cf00b in xmalloc () from /usr/lib/libcyrus_min.so.0
#6 0x00007f13582cf11e in xstrdup () from /usr/lib/libcyrus_min.so.0
#7 0x0000000000403504 in ptsmodule_standard_root_dn
(domain=domain at entry=0x177e060 "example", result=0x177cf98) at
ptclient/ldap.c:677
#8 0x00000000004042ba in ptsmodule_get_dn
(canon_id=canon_id at entry=0x607fa0 "info at example.com",
size=size at entry=33, ret=ret at entry=0x7fff3550b290) at ptclient/ldap.c:993
#9 0x000000000040527d in ptsmodule_make_authstate_attribute
(newstate=0x7fff3550b278, dsize=0x7fff3550b31c, reply=0x7fff3550b320,
size=33, canon_id=0x607fa0 "info at example.com")
at ptclient/ldap.c:1085
#10 myauthstate (identifier=<optimized out>, size=33, reply=<optimized
out>, dsize=0x7fff3550b31c) at ptclient/ldap.c:1497
#11 0x0000000000402de9 in service_main_fd (c=c at entry=11, argc=<optimized
out>, argv=<optimized out>, envp=envp at entry=0x7fff3550bb20) at
ptclient/ptloader.c:232
#12 0x0000000000402834 in main (argc=<optimized out>,
argv=0x7fff3550bb08, envp=0x7fff3550bb20) at master/service-thread.c:296
At the same time, the slapd access log shows an access (via imap) and a
service connection:
[03/Apr/2015:19:26:59 +0200] conn=41 fd=71 slot=71 connection from
127.0.0.1 to 127.0.0.1
[03/Apr/2015:19:26:59 +0200] conn=41 op=0 BIND
dn="uid=kolab-service,ou=Special Users,dc=example,dc=com" method=128
version=3
[03/Apr/2015:19:26:59 +0200] conn=41 op=0 RESULT err=0 tag=97 nentries=0
etime=0 dn="uid=kolab-service,ou=special users,dc=example,dc=com"
[03/Apr/2015:19:26:59 +0200] conn=41 op=1 SRCH base="cn=kolab,cn=config"
scope=2
filter="(&(objectClass=domainrelatedobject)(associatedDomain=example.com))"
attrs="associatedDomain inetDomainBaseDN"
[03/Apr/2015:19:26:59 +0200] conn=41 op=1 RESULT err=0 tag=101
nentries=1 etime=0
[03/Apr/2015:19:26:59 +0200] conn=41 op=-1 fd=71 closed - B1
[03/Apr/2015:19:26:59 +0200] conn=42 fd=71 slot=71 connection from
127.0.0.1 to 127.0.0.1
[03/Apr/2015:19:26:59 +0200] conn=42 op=0 BIND dn="cn=Directory Manager"
method=128 version=3
[03/Apr/2015:19:26:59 +0200] conn=42 op=0 RESULT err=0 tag=97 nentries=0
etime=0 dn="cn=directory manager"
[03/Apr/2015:19:26:59 +0200] conn=42 op=1 BIND
dn="uid=info,ou=People,dc=example,dc=com" method=128 version=3
[03/Apr/2015:19:26:59 +0200] conn=42 op=1 RESULT err=0 tag=97 nentries=0
etime=0 dn="uid=info,ou=people,dc=example,dc=com"
[03/Apr/2015:19:26:59 +0200] conn=42 op=2 UNBIND
[03/Apr/2015:19:26:59 +0200] conn=42 op=2 fd=71 closed - U1
[03/Apr/2015:19:26:59 +0200] conn=43 fd=71 slot=71 connection from
127.0.0.1 to 127.0.0.1
[03/Apr/2015:19:26:59 +0200] conn=43 op=0 BIND dn="cn=Directory Manager"
method=128 version=3
[03/Apr/2015:19:26:59 +0200] conn=43 op=0 RESULT err=0 tag=97 nentries=0
etime=0 dn="cn=directory manager"
[03/Apr/2015:19:26:59 +0200] conn=43 op=1 BIND
dn="uid=info,ou=People,dc=example,dc=com" method=128 version=3
[03/Apr/2015:19:26:59 +0200] conn=43 op=1 RESULT err=0 tag=97 nentries=0
etime=0 dn="uid=info,ou=people,dc=example,dc=com"
[03/Apr/2015:19:26:59 +0200] conn=43 op=2 UNBIND
[03/Apr/2015:19:26:59 +0200] conn=43 op=2 fd=71 closed - U1
So, the problem is ldap related.
I will downgrade to version git-12-2014 which worked for me so far.
Rgds.
Franz
Am 01.04.15 um 20:34 schrieb Franz Skale:
>
>
>
> Hi,
> just want to report back the reason of the segfaults.
> It seems, that an empty dc value is the cause of the problem, then
> subsequent ldap calls causes segaults until the max respawn limit has
> been reached:
> Debug: (with toms syslog patch:
> https://obs.kolabsys.com/package/view_file/home:connyhald:branches:Kolab:3.3:Updates/cyrus-imapd/ptloader-segfault.patch?expand=1)
>
> Mar 30 21:05:27 mail cyrus-imapd/ptloader[23045]: SEGV: ld: x, base:
> dc=,dc=, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:05:27 mail cyrus-imapd/ptloader[23045]: SEGV: ld: x, base:
> dc=,dc=, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:05:27 mail cyrus-imapd/ptloader[23045]: SEGV: ld: x, base:
> dc=,dc=, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:07:04 mail cyrus-imapd/ptloader[23045]: SEGV: ld: x, base:
> dc=example,dc=com, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=info.example))(&(|(uid=info.example)(mail=info.example at example.com)(mail=info.example@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:07:04 mail cyrus-imapd/ptloader[23045]: SEGV: Reached last
> return. Ret: uid=info,ou=People,dc=example,dc=com
> Mar 30 21:07:16 mail cyrus-imapd/ptloader[23045]: SEGV: ld: x, base:
> dc=example,dc=com, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:07:16 mail cyrus-imapd/ptloader[23045]: SEGV: Reached last
> return. Ret: NULL
> Mar 30 21:07:16 mail cyrus-imapd/ptloader[23045]: SEGV: ld: x, base:
> dc=example,dc=com, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:07:16 mail cyrus-imapd/ptloader[23045]: SEGV: Reached last
> return. Ret: NULL
> Mar 30 21:07:16 mail cyrus-imapd/ptloader[23045]: SEGV: ld: x, base:
> dc=example,dc=com, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:07:16 mail cyrus-imapd/ptloader[23045]: SEGV: Reached last
> return. Ret: NULL
> Mar 30 21:07:16 mail cyrus-imapd/ptloader[23045]: SEGV: ld: x, base:
> dc=example,dc=com, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:07:16 mail cyrus-imapd/ptloader[23045]: SEGV: Reached last
> return. Ret: NULL
> Mar 30 21:22:29 mail cyrus-imapd/ptloader[23498]: SEGV: ld: x, base:
> dc=,dc=, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:22:29 mail cyrus-imapd/ptloader[23498]: SEGV: ld: x, base:
> dc=,dc=, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:37:37 mail cyrus-imapd/ptloader[23498]: SEGV: ld: x, base:
> dc=,dc=, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:37:37 mail cyrus-imapd/ptloader[23498]: SEGV: ld: x, base:
> dc=,dc=, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:52:52 mail cyrus-imapd/ptloader[23810]: SEGV: ld: x, base:
> dc=,dc=, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
> Mar 30 21:52:52 mail cyrus-imapd/ptloader[23810]: SEGV: ld: x, base:
> dc=,dc=, scope: 2, filter:
> (|(&(|(uid=cyrus-admin)(uid=cyrus-murder))(uid=cyrus-admin))(&(|(uid=cyrus-admin)(mail=cyrus-admin@)(mail=cyrus-admin@))(objectclass=kolabinetorgperson))),
> attrs: x, timeout: 10.000000
>
> Perhaps, anyone is able to find the root cause of the problem.
>
> Rgds.
> Franz
>
>
>
>
> Am 30.03.15 um 20:01 schrieb Franz Skale:
>> Hi,
>> only wanted to report back.
>> With version 2.5.0.0 (dev tree but stable cyrus release) the segfaults
>> came back.
>> I have to compile cyrus with debugging symbols enabled to dig deeper.
>> The actual bt:
>> Core was generated by `ptloader -d9'.
>> Program terminated with signal 6, Aborted.
>> #0 0x00007f799ee0c107 in raise () from /lib/x86_64-linux-gnu/libc.so.6
>> (gdb) bt
>> #0 0x00007f799ee0c107 in raise () from /lib/x86_64-linux-gnu/libc.so.6
>> #1 0x00007f799ee0d4e8 in abort () from /lib/x86_64-linux-gnu/libc.so.6
>> #2 0x00007f799ee4ef3d in ?? () from /lib/x86_64-linux-gnu/libc.so.6
>> #3 0x00007f799ee51de1 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
>> #4 0x00007f799ee52eb0 in malloc () from /lib/x86_64-linux-gnu/libc.so.6
>> #5 0x00007f79a1c3500b in xmalloc () from /usr/lib/libcyrus_min.so.0
>> #6 0x00007f79a1c3511e in xstrdup () from /usr/lib/libcyrus_min.so.0
>> #7 0x0000000000403504 in ?? ()
>> #8 0x00000000004041e6 in ?? ()
>> #9 0x000000000040514d in ?? ()
>> #10 0x0000000000402de9 in ?? ()
>> #11 0x0000000000402834 in ?? ()
>> #12 0x00007f799edf8b45 in __libc_start_main () from
>> /lib/x86_64-linux-gnu/libc.so.6
>> #13 0x0000000000402a5e in ?? ()
>>
>> Rgds.
>>
>> Franz
>>
>>
>> Am 24.03.15 um 08:35 schrieb Cornelius Hald:
>>> On Sat, 2015-03-21 at 12:58 +0100, Jan Kowalsky wrote:
>>>> Hi,
>>>>
>>>> I upgraded a clone of my productive mailserver - but the ptloader errors
>>>> still exists. In a plain new installation with only one domain and a
>>>> couple of testaccounts everything looks ok - but not in the productive
>>>> environment with hundreds of accounts and about 15 domains.
>>>>
>>>> I hadn't had the time to get further in this problem - and I'm afraid
>>>> I'll lack of knowledge about cyrus ...
>>>>
>>>> But did you find out more about the reasons of segfault? It seems to be
>>>> related to certain conditions of the setup. Otherwise a lot more people
>>>> should be affected.
>>>>
>>>> Regards
>>>> Jan
>>> Hi,
>>>
>>> so far I didn't find time to look into this further. Also I'm not an
>>> expert in cyrus and ldap as well... I might have a chance to look into
>>> this again next week, but I doubt I'll find a solution by myself.
>>>
>>> Anyway, thanks a lot for you input. It's good to know the bug still
>>> exists with current cyrus.
>>>
>>> Cheers,
>>> Conny
>>>
>>> _______________________________________________
>>> users mailing list
>>> users at lists.kolab.org
>>> https://lists.kolab.org/mailman/listinfo/users
>>
>>
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>> users mailing list
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>
>
>
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