[SR-Users] Kamailio 1.5.5 No TLS Segmentation Fault
Daniel-Constantin Mierla
miconda at gmail.com
Thu Feb 17 18:53:10 CET 2011
Hello,
On 2/17/11 5:41 PM, Stagg Shelton wrote:
> Hi Timo,
>
> I have not tried the latest SVN yet. My system just did another core again today. The backtrace seems to show it at the same location. Below is the backtrace from today. If grabbing the latest SVN is the only chance of stopping this behavior I can do that, but I have to be as careful as possible to try and ensure that new anomalies are not introduced as a result of a code change. Is the information from the backtrace even helpful for identifying the root cause of the issue?
I recommend using 1.5 from SVN branch. Since 1.5.5 was released on Oct
20, there were some fixes related to dialog, very likely to fix the
problem you report.
On the other hand, with Kamailio we do only bug fixes between minor
releases. A major release has always the ending digit 0. Version x.y.z
is a new major release if z=0, then z=1 or greater means we have found
and fixed issues in x.y.0. There is no new feature, therefore no new
bugs should be introduced. We don't do minor releases as we find and fix
one issue, but wait 1-2 months to accumulate more. Using a stable
branch, being it SVN or GIT should be safer than using a tarball with a
release.
Summarizing:
- new features are brought by versions changing x or y numbers
- fixed issues are brought by versions changing z number -- in this case
the config file format and database structure are the same for any of z
numbers when x.y is the same
Cheers,
Daniel
> Core was generated by `/sbin/kamailio -m 512'.
> Program terminated with signal 11, Segmentation fault.
> #0 0x00007f85596b0fa7 in unref_dlg (dlg=0x7f853f9d1588, cnt=1) at dlg_hash.c:474
> 474 d_entry =&(d_table->entries[dlg->h_entry]);
> Missing separate debuginfos, use: debuginfo-install bzip2-libs-1.0.5-5.fc11.x86_64 db4-4.7.25-11.fc11.x86_64 e2fsprogs-libs-1.41.9-2.fc11.x86_64 elfutils-libelf-0.147-1.fc11.x86_64 glibc-2.10.2-1.x86_64 keyutils-libs-1.2-5.fc11.x86_64 krb5-libs-1.6.3-31.fc11.x86_64 libacl-2.2.49-3.fc11.x86_64 libattr-2.4.43-3.fc11.x86_64 libcap-2.16-4.fc11.1.x86_64 libconfuse-2.6-2.fc11.x86_64 libgcc-4.4.1-2.fc11.x86_64 libselinux-2.0.80-1.fc11.x86_64 lm_sensors-3.1.0-1.fc11.x86_64 lua-5.1.4-3.fc11.x86_64 mysql-libs-5.1.46-1.fc11.x86_64 net-snmp-libs-5.4.2.1-13.fc11.x86_64 nspr-devel-4.8.4-1.3.fc11.x86_64 nss-devel-3.12.6-1.2.fc11.x86_64 nss-softokn-freebl-3.12.6-1.2.fc11.x86_64 openssl-0.9.8n-1.fc11.x86_64 pcre-7.8-2.fc11.x86_64 perl-libs-5.10.0-82.fc11.x86_64 popt-1.13-5.fc11.x86_64 radiusclient-ng-0.5.6-4.fc11.x86_64 rpm-libs-4.7.2-1.fc11.x86_64 tcp_wrappers-libs-7.6-55.fc11.x86_64 xz-libs-4.999.9-0.1.beta.20091007git.fc11.x86_64 zlib-1.2.3-22.fc11.x86_64
> (gdb) bt full
> #0 0x00007f85596b0fa7 in unref_dlg (dlg=0x7f853f9d1588, cnt=1) at dlg_hash.c:474
> d_entry = 0x0
> __FUNCTION__ = "unref_dlg"
> #1 0x00007f85596ac80f in unref_dlg_from_cb (t=0x7f853f91d1b0, type=4096, param=0x7f855fcc56e0) at dlg_handlers.c:622
> dlg = 0x7f853f9d1588
> #2 0x00007f855fa93ea3 in run_trans_callbacks (type=4096, trans=0x7f853f91d1b0, req=0x0, rpl=0x0, code=0) at t_hooks.c:240
> cbp = 0x7f853f76e278
> backup = 0x71a9d0
> trans_backup = 0xffffffffffffffff
> __FUNCTION__ = "run_trans_callbacks"
> #3 0x00007f855fa823cc in free_cell (dead_cell=0x7f853f91d1b0) at h_table.c:132
> b = 0x0
> i = 1
> rpl = 0x0
> tt = 0x0
> foo = 0x0
> p = 0x7f853f73bc30
> #4 0x00007f855fa82bb6 in free_hash_table () at h_table.c:345
> p_cell = 0x7f853f91d1b0
> tmp_cell = 0x0
> i = 6172
> #5 0x00007f855fa8f2a4 in tm_shutdown () at t_funcs.c:109
> __FUNCTION__ = "tm_shutdown"
> #6 0x00000000004529f6 in destroy_modules () at sr_module.c:321
> t = 0x7349d0
> foo = 0x734910
> __FUNCTION__ = "destroy_modules"
> #7 0x000000000041f6b4 in cleanup (show_status=1) at main.c:331
> No locals.
> #8 0x0000000000420597 in handle_sigs () at main.c:517
> chld = 0
> chld_status = 134
> i = 10
> do_exit = 1
> ---Type<return> to continue, or q<return> to quit---
> shutdown_time = 60
> __FUNCTION__ = "handle_sigs"
> #9 0x00000000004217b5 in main_loop () at main.c:859
> chd_rank = 12
> i = 4
> pid = 29418
> si = 0x0
> __FUNCTION__ = "main_loop"
> #10 0x0000000000423410 in main (argc=3, argv=0x7fff4b00bb18) at main.c:1321
> cfg_log_stderr = 0
> cfg_stream = 0x225a010
> c = -1
> r = 0
> tmp_len = 0
> port = 0
> proto = 4910128
> ret = -1
> rfd = 4
> tmp = 0x7fff4b00cf84 ""
> options = 0x4b77e0 "f:cCm:b:l:n:N:rRvdDFETSVhw:t:u:g:P:G:W:"
> rand_source = 0x4b7d9c "/dev/urandom"
> seed = 3664355638
> __FUNCTION__ = "main"
>
> --Stagg
>
> On Feb 15, 2011, at 4:39 AM, Timo Reimann wrote:
>
>> Hi Stagg,
>>
>> with regards to the failing function, there was a bugfix in the dialog
>> module which, unfortunately, didn't make it into 1.5.5 in time (revision
>> 6049). Could you try the latest SVN of 1.5 and see if it solves the issue?
>>
>> Thanks.
>>
>>
>> Cheers,
>>
>> --Timo
>>
>>
>>
>> On 14.02.2011 21:07, Stagg Shelton wrote:
>>> Hello,
>>>
>>> We have been having a problem with Kamilio faulting and dumping core files on occasion. I have not been able to reproduce the failure at will, but notice the back trace seems to point toward actions with the dialogue. Below is from a backtrace of a core file from just a few minutes ago. Can anyone determine what may have caused the system to error and stop processing?
>>>
>>> Thanks
>>> Stagg
>>>
>>> Core was generated by `/sbin/kamailio -m 512'.
>>> Program terminated with signal 11, Segmentation fault.
>>> #0 0x00007f8a11d55fa7 in unref_dlg (dlg=0x7f89f7e07470, cnt=1) at dlg_hash.c:474
>>> 474 d_entry =&(d_table->entries[dlg->h_entry]);
>>> Missing separate debuginfos, use: debuginfo-install bzip2-libs-1.0.5-5.fc11.x86_64 db4-4.7.25-11.fc11.x86_64 e2fsprogs-libs-1.41.9-2.fc11.x86_64 elfutils-libelf-0.147-1.fc11.x86_64 glibc-2.10.2-1.x86_64 keyutils-libs-1.2-5.fc11.x86_64 krb5-libs-1.6.3-31.fc11.x86_64 libacl-2.2.49-3.fc11.x86_64 libattr-2.4.43-3.fc11.x86_64 libcap-2.16-4.fc11.1.x86_64 libconfuse-2.6-2.fc11.x86_64 libgcc-4.4.1-2.fc11.x86_64 libselinux-2.0.80-1.fc11.x86_64 lm_sensors-3.1.0-1.fc11.x86_64 lua-5.1.4-3.fc11.x86_64 mysql-libs-5.1.46-1.fc11.x86_64 net-snmp-libs-5.4.2.1-13.fc11.x86_64 nspr-devel-4.8.4-1.3.fc11.x86_64 nss-devel-3.12.6-1.2.fc11.x86_64 nss-softokn-freebl-3.12.6-1.2.fc11.x86_64 openssl-0.9.8n-1.fc11.x86_64 pcre-7.8-2.fc11.x86_64 perl-libs-5.10.0-82.fc11.x86_64 popt-1.13-5.fc11.x86_64 radiusclient-ng-0.5.6-4.fc11.x86_64 rpm-libs-4.7.2-1.fc11.x86_64 tcp_wrappers-libs-7.6-55.fc11.x86_64 xz-libs-4.999.9-0.1.beta.20091007git.fc11.x86_64 zlib-1.2.3-22.fc11.x86_64
>>> (gdb) bt full
>>> #0 0x00007f8a11d55fa7 in unref_dlg (dlg=0x7f89f7e07470, cnt=1) at dlg_hash.c:474
>>> d_entry = 0x0
>>> __FUNCTION__ = "unref_dlg"
>>> #1 0x00007f8a11d5180f in unref_dlg_from_cb (t=0x7f89f7d9c660, type=4096, param=0x7f8a1836a6e0) at dlg_handlers.c:622
>>> dlg = 0x7f89f7e07470
>>> #2 0x00007f8a18138ea3 in run_trans_callbacks (type=4096, trans=0x7f89f7d9c660, req=0x0, rpl=0x0, code=0) at t_hooks.c:240
>>> cbp = 0x7f89f7dc30e8
>>> backup = 0x71a9d0
>>> trans_backup = 0xffffffffffffffff
>>> __FUNCTION__ = "run_trans_callbacks"
>>> #3 0x00007f8a181273cc in free_cell (dead_cell=0x7f89f7d9c660) at h_table.c:132
>>> b = 0x0
>>> i = 1
>>> rpl = 0x0
>>> tt = 0x0
>>> foo = 0x7fff4282f190
>>> p = 0x7f89f7d3b068
>>> #4 0x00007f8a18127bb6 in free_hash_table () at h_table.c:345
>>> p_cell = 0x7f89f7d9c660
>>> tmp_cell = 0x0
>>> i = 4075
>>> #5 0x00007f8a181342a4 in tm_shutdown () at t_funcs.c:109
>>> __FUNCTION__ = "tm_shutdown"
>>> #6 0x00000000004529f6 in destroy_modules () at sr_module.c:321
>>> t = 0x7349d0
>>> foo = 0x734910
>>> __FUNCTION__ = "destroy_modules"
>>> #7 0x000000000041f6b4 in cleanup (show_status=1) at main.c:331
>>> No locals.
>>> #8 0x0000000000420597 in handle_sigs () at main.c:517
>>> chld = 0
>>> chld_status = 134
>>> i = 12
>>> do_exit = 1
>>> ---Type<return> to continue, or q<return> to quit---
>>> shutdown_time = 60
>>> __FUNCTION__ = "handle_sigs"
>>> #9 0x00000000004217b5 in main_loop () at main.c:859
>>> chd_rank = 12
>>> i = 4
>>> pid = 21442
>>> si = 0x0
>>> __FUNCTION__ = "main_loop"
>>> #10 0x0000000000423410 in main (argc=3, argv=0x7fff4282f498) at main.c:1321
>>> cfg_log_stderr = 0
>>> cfg_stream = 0x1fe1010
>>> c = -1
>>> r = 0
>>> tmp_len = 0
>>> port = 0
>>> proto = 4910128
>>> ret = -1
>>> rfd = 4
>>> tmp = 0x7fff4282ff8a ""
>>> options = 0x4b77e0 "f:cCm:b:l:n:N:rRvdDFETSVhw:t:u:g:P:G:W:"
>>> rand_source = 0x4b7d9c "/dev/urandom"
>>> seed = 3628387751
>>> __FUNCTION__ = "main"
>>> (gdb)
>>> (gdb) quit
>>>
>>>
>>> _______________________________________________
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>
> _______________________________________________
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--
Daniel-Constantin Mierla
http://www.asipto.com
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