Issue #47503: modify as root causes a crash when chain on update is configured - 389-ds-base

389-ds-base

#47503 modify as root causes a crash when chain on update is configured

Closed: wontfix None Opened 10 years ago by lkrispen.

Working on ticket #314 with current master I got a crash when doing a mod as root. The mod is applied locally and leads to this crash: 0x00007f8a9fd72b02 in write_changelog_and_ruv (pb=0x7f8a8b7fdaa0) at ldap/servers/plugins/replication/repl5_plugins.c:1227 1227 csn_as_string(op_params->csn, PR_FALSE, csn_str)); (gdb) bt #0 0x00007f8a9fd72b02 in write_changelog_and_ruv (pb=0x7f8a8b7fdaa0) at ldap/servers/plugins/replication/repl5_plugins.c:1227 #1 0x00007f8a9fd72493 in multimaster_be_betxnpostop_modify (pb=0x7f8a8b7fdaa0) at ldap/servers/plugins/replication/repl5_plugins.c:961 #2 0x0000003f850a9d97 in plugin_call_func (list=0x2745990, operation=561, pb=0x7f8a8b7fdaa0, call_one=0) at ldap/servers/slapd/plugin.c:1467 #3 0x0000003f850a9c57 in plugin_call_list (list=0x2710320, operation=561, pb=0x7f8a8b7fdaa0) at ldap/servers/slapd/plugin.c:1429 #4 0x0000003f850a7f90 in plugin_call_plugins (pb=0x7f8a8b7fdaa0, whichfunction=561) at ldap/servers/slapd/plugin.c:403 #5 0x00007f8aa0043f18 in ldbm_back_modify (pb=0x7f8a8b7fdaa0) at ldap/servers/slapd/back-ldbm/ldbm_modify.c:753 #6 0x0000003f8509632d in op_shared_modify (pb=0x7f8a8b7fdaa0, pw_change=0, old_pw=0x0) at ldap/servers/slapd/modify.c:1075 #7 0x0000003f85094b40 in do_modify (pb=0x7f8a8b7fdaa0) at ldap/servers/slapd/modify.c:415 #8 0x000000000041507c in connection_dispatch_operation (conn=0x7f8a98162210, op=0x280b470, pb=0x7f8a8b7fdaa0) at ldap/servers/slapd/connection.c:653 #9 0x0000000000416cd9 in connection_threadmain () at ldap/servers/slapd/connection.c:2482 #10 0x0000003e6dc28b46 in ?? () from /usr/lib64/libnspr4.so #11 0x000000390b607d14 in start_thread (arg=0x7f8a8b7fe700) at pthread_create.c:309 #12 0x000000390aef168d in clone () from /usr/lib64/libc.so.6 It is a read only replica without changelog, so this should not happen.

mreynolds commented 10 years ago

Are there any more details on how to reproduce this? I setup "chain on update" on a consumer, and I did a modify as the root DN on the consumer.

On 1.3.2(master), the update is rejected(err=53). On 1.3.1 is it allowed. Neither of these crash the server.

I followed this document for setting up chain on update: http://directory.fedoraproject.org/wiki/Howto:ChainOnUpdate

lkrispen commented 10 years ago

with the fix for #314 the updates as root are rejected by default, but it can be configured:
nsslapd-distribution-root-update: local

I only experienced the crash once, created this ticket - but later on local updates as root did no longer crash. So there is a problem, but probably hard to reproduce

mreynolds commented 10 years ago

Replying to [comment:5 lkrispen]:

with the fix for #314 the updates as root are rejected by default, but it can be configured:
nsslapd-distribution-root-update: local

I only experienced the crash once, created this ticket - but later on local updates as root did no longer crash. So there is a problem, but probably hard to reproduce

Did it crash before your patch or after? Should I be testing 1.3.1, or master with the config change you mentioned?

lkrispen commented 10 years ago

The crash occured when I started to implement #314, so it was before, but with a state of master late august/early sept.
So I suggest you try with current master and the switch to allow local updates

mreynolds commented 10 years ago

I have been unable to reproduce this crash. I've tried all kinds of scenarios, consumers, hubs, single masters, changelog/no changelog, etc. I wonder if while implementing ticket #314, the crash was accidentally introduced, and then later accidentally fixed.

Closing ticket.

Metadata Update from @mreynolds:
- Issue assigned to mreynolds
- Issue set to the milestone: 1.3.3 - 10/13 (October)

7 years ago

spichugi commented 3 years ago

389-ds-base is moving from Pagure to Github. This means that new issues and pull requests
will be accepted only in 389-ds-base's github repository.

This issue has been cloned to Github and is available here:
- https://github.com/389ds/389-ds-base/issues/840

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Thank you for understanding. We apologize for all inconvenience.

Metadata Update from @spichugi:
- Issue close_status updated to: wontfix (was: Invalid)

3 years ago

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mreynolds

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major

Milestone

1.3.3 - 10/13 (October)

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389-ds-base

Source Code

#47503 modify as root causes a crash when chain on update is configured Closed: wontfix None Opened 10 years ago by lkrispen.

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#47503 modify as root causes a crash when chain on update is configured

Closed: wontfix None Opened 10 years ago by lkrispen.