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Bug 1431278

Summary: ns-slapd killed by SIGSEGV
Product: Red Hat Enterprise Linux 7 Reporter: Viktor Ashirov <vashirov>
Component: 389-ds-baseAssignee: wibrown <wibrown>
Status: CLOSED WORKSFORME QA Contact: Viktor Ashirov <vashirov>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 7.4CC: mreynolds, nkinder, rmeggins, sgoveas, vashirov, wibrown
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: 389-ds-base-1.3.6.1-3.el7 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2017-11-28 11:06:58 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Viktor Ashirov 2017-03-10 20:21:45 UTC
Description of problem:

ns-slapd segfaults during full acceptance tests.

{   "signal": 11
,   "executable": "/usr/sbin/ns-slapd"
,   "stacktrace":
      [ {   "crash_thread": true
        ,   "frames":
              [ {   "address": 139784703787125
                ,   "build_id": "e5d8782e2fcfaf259b364a8a58ca0480b64c79b6"
                ,   "build_id_offset": 819317
                ,   "function_name": "slapi_counter_get_value"
                ,   "file_name": "/usr/lib64/dirsrv/libslapd.so.0.1.0"
                }
              , {   "address": 139784703649437
                ,   "build_id": "e5d8782e2fcfaf259b364a8a58ca0480b64c79b6"
                ,   "build_id_offset": 681629
                ,   "function_name": "plugin_op_all_finished"
                ,   "file_name": "/usr/lib64/dirsrv/libslapd.so.0.1.0"
                }
              , {   "address": 139784703660184
                ,   "build_id": "e5d8782e2fcfaf259b364a8a58ca0480b64c79b6"
                ,   "build_id_offset": 692376
                ,   "function_name": "plugin_dependency_closeall"
                ,   "file_name": "/usr/lib64/dirsrv/libslapd.so.0.1.0"
                }
              , {   "address": 139784713010528
                ,   "build_id": "39b96c47cbdd971adc9af682b2dff62198f7e540"
                ,   "build_id_offset": 138592
                ,   "function_name": "slapd_daemon"
                ,   "file_name": "/usr/sbin/ns-slapd"
                }
              , {   "address": 139784712947669
                ,   "build_id": "39b96c47cbdd971adc9af682b2dff62198f7e540"
                ,   "build_id_offset": 75733
                ,   "function_name": "main"
                ,   "file_name": "/usr/sbin/ns-slapd"
                } ]
        } ]
}

Full stacktrace will be attached later since test instance is already gone.

Version-Release number of selected component (if applicable):
389-ds-base-1.3.6.1-1.el7.x86_64

How reproducible:
always

Steps to Reproduce:
I'm yet to identify which test case triggers the crash. I'll update the bug later with more details.

Actual results:


Expected results:


Additional info:

Comment 2 Noriko Hosoi 2017-03-10 20:51:05 UTC
Hi William,

Could you please take a look?

Thanks!

Comment 3 wibrown@redhat.com 2017-03-13 00:50:46 UTC
Is this a dynamic plugin test perhaps?

Comment 4 wibrown@redhat.com 2017-03-13 00:52:32 UTC
So the problem is that there is a design issue in dynamic plugins, that when I fixed our memory leaks that is now exposed. Dynamic plugins are not safe across multiple threads. We have an open issue here:

https://pagure.io/389-ds-base/issue/49100

The truth is that dynamic plugins have never been safe, and we need to commit to repairing this. I do not believe the fix I have in mind is possible before the 1.3.6 release date.

Comment 5 mreynolds 2017-03-22 14:10:18 UTC
Viktor, is this TET or lib389 suite tests that cause the crash?  I'm assuming TET, which means no dynamic plugin tests, but I want to confirm.  Thanks

Comment 6 Viktor Ashirov 2017-03-22 15:01:57 UTC
It's TET tests that cause the crash.
But in the latest build (389-ds-base-1.3.6.1-3.el7) there was no crash. Looks like it was fixed.

Comment 8 Viktor Ashirov 2017-04-06 11:20:52 UTC
Build tested:
389-ds-base-1.3.6.1-6.el7.x86_64

No crashes were observed with this build, marking as VERIFIED.

Comment 14 wibrown@redhat.com 2017-05-24 00:07:07 UTC
>               [ {   "address": 139784703787125
>                 ,   "build_id": "e5d8782e2fcfaf259b364a8a58ca0480b64c79b6"
>                 ,   "build_id_offset": 819317
>                 ,   "function_name": "slapi_counter_get_value"

Mark and I have made changes in this area of the code, so is this still possible to reproduce?

Comment 16 Viktor Ashirov 2017-11-28 11:06:58 UTC
(In reply to wibrown from comment #14)
> >               [ {   "address": 139784703787125
> >                 ,   "build_id": "e5d8782e2fcfaf259b364a8a58ca0480b64c79b6"
> >                 ,   "build_id_offset": 819317
> >                 ,   "function_name": "slapi_counter_get_value"
> 
> Mark and I have made changes in this area of the code, so is this still
> possible to reproduce?

I wasn't able to reproduce it anymore with 1.3.7.

Closing as WORKSFORME.