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From "Ivan Zhakov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SVN-2935) mod_dav_svn + Apache/mpm_worker don't play nice
Date Fri, 09 Oct 2015 22:29:05 GMT

     [ https://issues.apache.org/jira/browse/SVN-2935?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ivan Zhakov updated SVN-2935:
-----------------------------
    Description: 
I have seen reports of this in email, and experienced it myself, but I cannot find any bug
report for this in the bug tracking system.

The issue is that with mpm_worker, mod_dav_svn will cause the apache process it is in to core
dump.  This only happens when the frequency of SVN requests increases (ie. occasional usage
does not cause this - however when doing something like a repository diff scan (ie. repeated
requests to get all diffs to build a diff database for something like a subversion front-end
like FishEye) will trigger it every time).

It has been previously reported here:
http://svn.haxx.se/users/archive-2006-02/1317.shtml

And is also listed as a bug on the apache issue tracker (though it is more likely a mod_dav_svn
bug than an apache bug):
http://issues.apache.org/bugzilla/show_bug.cgi?id=42262

The latter link includes a stack trace (Thread 9 is interesting), but unfortunately I did
not have subversion compiled with symbols at the time, I will re-run it and attach it here.

Original issue reported by *prez*

  was:
{noformat:nopanel=true}
I have seen reports of this in email, and experienced it myself, but I cannot
find any bug report for this in the bug tracking system.

The issue is that with mpm_worker, mod_dav_svn will cause the apache process it
is in to core dump.  This only happens when the frequency of SVN requests
increases (ie. occasional usage does not cause this - however when doing
something like a repository diff scan (ie. repeated requests to get all diffs to
build a diff database for something like a subversion front-end like FishEye)
will trigger it every time).

It has been previously reported here:
http://svn.haxx.se/users/archive-2006-02/1317.shtml

And is also listed as a bug on the apache issue tracker (though it is more
likely a mod_dav_svn bug than an apache bug):
http://issues.apache.org/bugzilla/show_bug.cgi?id=42262

The latter link includes a stack trace (Thread 9 is interesting), but
unfortunately I did not have subversion compiled with symbols at the time, I
will re-run it and attach it here.
{noformat}


Original issue reported by *prez*


> mod_dav_svn + Apache/mpm_worker don't play nice
> -----------------------------------------------
>
>                 Key: SVN-2935
>                 URL: https://issues.apache.org/jira/browse/SVN-2935
>             Project: Subversion
>          Issue Type: Bug
>          Components: mod_dav_svn
>    Affects Versions: 1.4.x
>         Environment: Linux
>            Reporter: Subversion Importer
>            Priority: Blocker
>             Fix For: unscheduled
>
>         Attachments: 1_svn-fix.patch
>
>
> I have seen reports of this in email, and experienced it myself, but I cannot find any
bug report for this in the bug tracking system.
> The issue is that with mpm_worker, mod_dav_svn will cause the apache process it is in
to core dump.  This only happens when the frequency of SVN requests increases (ie. occasional
usage does not cause this - however when doing something like a repository diff scan (ie.
repeated requests to get all diffs to build a diff database for something like a subversion
front-end like FishEye) will trigger it every time).
> It has been previously reported here:
> http://svn.haxx.se/users/archive-2006-02/1317.shtml
> And is also listed as a bug on the apache issue tracker (though it is more likely a mod_dav_svn
bug than an apache bug):
> http://issues.apache.org/bugzilla/show_bug.cgi?id=42262
> The latter link includes a stack trace (Thread 9 is interesting), but unfortunately I
did not have subversion compiled with symbols at the time, I will re-run it and attach it
here.
> Original issue reported by *prez*



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