qpid-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Ken Giusti (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DISPATCH-130) qdrouterd with --daemon and --user options does not dump core.
Date Wed, 01 Apr 2015 17:03:53 GMT

    [ https://issues.apache.org/jira/browse/DISPATCH-130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14390988#comment-14390988
] 

Ken Giusti commented on DISPATCH-130:
-------------------------------------

I've been able to get dumping of setuid processes (qdrouterd -d --user qpidd specifically)
on my RHEL 6 and RHEL 7 boxes.

I added the following to /etc/sysctl.conf:

fs.suid_dumpable = 2

and to /etc/security/limits.conf:

*   soft   core   unlimited

then

cat "/tmp/core.%e.%p" > /proc/sys/kernel/core_pattern

I was able to use kill -6 to cause qdrouterd to dump core into the /tmp directory.

> qdrouterd with --daemon and --user options does not dump core.
> --------------------------------------------------------------
>
>                 Key: DISPATCH-130
>                 URL: https://issues.apache.org/jira/browse/DISPATCH-130
>             Project: Qpid Dispatch
>          Issue Type: Bug
>          Components: Container
>    Affects Versions: 0.3
>            Reporter: Alan Conway
>            Assignee: Ken Giusti
>             Fix For: 0.4
>
>
> If qdroutered is started with --daemon and --user options, and then is killed with SIGABRT
or crashes, it does not produce a core file. Note both --daemon and --user are reqiured to
produce the problem, either alone does not. Tested on RHEL6 and Fedora 21 as follows:
> Send core files in /tmp, since --daemon will set current directory to /
> {noformat}
> # echo /tmp/core.%e.%p > /proc/sys/kernel/core_pattern
> {noformat}
> Verify we do get a core file with just --daemon
> {noformat}
> # qdrouterd --daemon
> # pkill -e -6 qdrouterd
> qdrouterd killed (pid 11482)
> # ls /tmp/core*
> /tmp/core.qdrouterd.11482
> {noformat}
> Now add --user 
> {noformat}
> # rm /tmp/core*
> # qdrouterd --daemon --user aconway
> # pkill -e -6 qdrouterd
> qdrouterd killed (pid 11432)
> # ls /tmp/core*
> ls: cannot access /tmp/core*: No such file or directory
> {noformat}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@qpid.apache.org
For additional commands, e-mail: dev-help@qpid.apache.org


Mime
View raw message