Re: imapd segfault at 0 help

Neal Horman <[email protected]> Wed, 19 Nov 2014 19:24:22 -0600
Newsgroups gmane.mail.imap.uw.c-client
Message-ID <[email protected]>
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FWIW

If you are still interested in running UW imapd, you may want to look at 
panda-imap instead.

[ http://en.wikipedia.org/wiki/UW_IMAP#Future_of_UW_IMAP ]
" Mark Crispin <http://en.wikipedia.org/wiki/Mark_Crispin>, the former 
developer of UW IMAP, 
announced^<http://en.wikipedia.org/wiki/UW_IMAP#cite_note-3> a fork 
called Panda IMAP"

https://github.com/jonabbey/panda-imap

I've been using it for a while now, for my personal mail server.
Switching fixed a number of problems that I was having using that last 
dist from UW.

Cheers
Neal


On 11/19/14 7:10 PM, Erik Lotspeich wrote:
> Hi Jerry,
>
> I had a similar crashes in imap-2007f running on SLES 11.3. I debugged
> the source code; it turned out, there were two bugs. I fixed them and
> that resolved the crashes for me. I sent my patch to this list, but I'm
> not sure that anyone cares as UW IMAP doesn't seem to be maintained anymore.
>
> Even though I was able to fix the problem, I lost confidence in UW imapd
> and switched to dovecot. So far, dovecot has shown to be superior in
> every meaningful way.
>
> Regards
>
> Erik
>
> On 11/18/2014 17:41, Jerry Lowry wrote:
>> Hello,
>> I am hoping that you may be able to help me solve a problem I have
>> encountered with UW-imapd.
>> We have been running the UW-imap application for quite a while.  First
>> on a Sun system and now we have upgraded [2011] to imap-2007f running on
>> a Centos system. I have noticed lately that imapd segfaults. I was
>> wondering what I can do to determine the cause or if this is known
>> problem and there is a fix that I can apply?
>>
>> [System]
>> Centos 6.5
>> 2.6.32-431.1.2.0.1.el6.x86_64 kernel
>> memory = 16G
>> total of 35 users
>>
>> [messages]
>> Nov 18 15:05:49 mailsvr kernel: imapd[11359]: segfault at 0 ip
>> 0000000000457ca9 sp 00007fff123174d0 error 4 in imapd[400000+f5000]
>>
>> [configuration files]
>> service imap
>> {
>>      disable    = no
>>      socket_type    = stream
>>      wait        = no
>>      user        = root
>>      server        = /usr/local/sbin/imapd
>>      groups        = yes
>>      flags        = REUSE
>> }
>>
>> defaults
>> {
>> # The next two items are intended to be a quick access place to
>> # temporarily enable or disable services.
>> #
>> #    enabled        =
>> #    disabled    =
>>
>> # Define general logging characteristics.
>>      log_type    = SYSLOG daemon info
>>      log_on_failure    = HOST
>>      log_on_success    = PID HOST DURATION EXIT
>>
>> # Define access restriction defaults
>> #
>> #    no_access    =
>> #    only_from    =
>> #    max_load    = 0
>>      cps        = 200 10
>>      instances    = UNLIMITED
>>      per_source    = 100
>>
>> # Address and networking defaults
>> #
>> #    bind        =
>> #    mdns        = yes
>>      v6only        = no
>>
>> # setup environmental attributes
>> #
>> #    passenv        =
>>      groups        = yes
>>      umask        = 002
>>
>> # Generally, banners are not used. This sets up their global defaults
>> #
>> #    banner        =
>> #    banner_fail    =
>> #    banner_success    =
>> }
>>
>> includedir /etc/xinetd.d
>>
>>
>> thanks,
>> -- 
>>
>> ---------------------------------------------------------------------------
>> Jerold Lowry
>> IT Manager / Software Engineer
>> Engineering Design Team (EDT), Inc. a HEICO company
>> 1400 NW Compton Drive, Suite 315
>> Beaverton, Oregon 97006 (U.S.A.)
>> Phone: 503-690-1234 / 800-435-4320
>> Fax: 503-690-1243
>> Web: _www.edt.com <http://www.edt.com/>_
>>
>>   
>>
>>
>>
>>
>> _______________________________________________
>> Imap-uw mailing list
>> [email protected]
>> http://mailman13.u.washington.edu/mailman/listinfo/imap-uw
>>
> _______________________________________________
> Imap-uw mailing list
> [email protected]
> http://mailman13.u.washington.edu/mailman/listinfo/imap-uw


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    text="#000000">
    <div class="moz-cite-prefix">FWIW<br>
      <br>
      If you are still interested in running UW imapd, you may want to
      look at panda-imap instead.<br>
      <br>
      [ <a class="moz-txt-link-freetext" href="http://en.wikipedia.org/wiki/UW_IMAP#Future_of_UW_IMAP">http://en.wikipedia.org/wiki/UW_IMAP#Future_of_UW_IMAP</a> ]<br>
      "
      <meta charset="utf-8">
      <font color="#000000"><a
          href="http://en.wikipedia.org/wiki/Mark_Crispin" title="Mark
          Crispin" style="text-decoration: none; font-family:
          sans-serif; font-size: 14px; font-style: normal; font-variant:
          normal; font-weight: normal; letter-spacing: normal;
          line-height: 22.4px; text-align: start; text-indent: 0px;
          text-transform: none; white-space: normal; word-spacing: 0px;
          background: none repeat scroll 0% 0% rgb(255, 255, 255);">Mark
          Crispin</a></font><span style="color: rgb(37, 37, 37);
        font-family: sans-serif; font-size: 14px; font-style: normal;
        font-variant: normal; font-weight: normal; letter-spacing:
        normal; line-height: 22.3999996185303px; orphans: auto;
        text-align: start; text-indent: 0px; text-transform: none;
        white-space: normal; widows: auto; word-spacing: 0px;
        -webkit-text-stroke-width: 0px; display: inline !important;
        float: none; background-color: rgb(255, 255, 255);"><font
          color="#000000">,</font> the former developer of UW IMAP,
        announced</span><sup id="cite_ref-3" class="reference"
        style="line-height: 1; unicode-bidi: -webkit-isolate;
        font-weight: normal; font-style: normal; font-size: 11px; color:
        rgb(37, 37, 37); font-family: sans-serif; font-variant: normal;
        letter-spacing: normal; orphans: auto; text-align: start;
        text-indent: 0px; text-transform: none; white-space: normal;
        widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;
        background-color: rgb(255, 255, 255);"><a
          href="http://en.wikipedia.org/wiki/UW_IMAP#cite_note-3"
          style="text-decoration: none; color: rgb(11, 0, 128);
          white-space: nowrap; background: none;"><span></span><span></span></a></sup><span
        style="color: rgb(37, 37, 37); font-family: sans-serif;
        font-size: 14px; font-style: normal; font-variant: normal;
        font-weight: normal; letter-spacing: normal; line-height:
        22.3999996185303px; orphans: auto; text-align: start;
        text-indent: 0px; text-transform: none; white-space: normal;
        widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;
        display: inline !important; float: none; background-color:
        rgb(255, 255, 255);"><span class="Apple-converted-space"> </span>a
        fork called Panda IMAP"</span><br>
      <br>
      <a class="moz-txt-link-freetext" href="https://github.com/jonabbey/panda-imap">https://github.com/jonabbey/panda-imap</a><br>
      <br>
      I've been using it for a while now, for my personal mail server.<br>
      Switching fixed a number of problems that I was having using that
      last dist from UW.<br>
      <br>
      Cheers<br>
      Neal<br>
      <br>
      <br>
      On 11/19/14 7:10 PM, Erik Lotspeich wrote:<br>
    </div>
    <blockquote cite="mid:[email protected]" type="cite">
      <pre wrap="">Hi Jerry,

I had a similar crashes in imap-2007f running on SLES 11.3. I debugged
the source code; it turned out, there were two bugs. I fixed them and
that resolved the crashes for me. I sent my patch to this list, but I'm
not sure that anyone cares as UW IMAP doesn't seem to be maintained anymore.

Even though I was able to fix the problem, I lost confidence in UW imapd
and switched to dovecot. So far, dovecot has shown to be superior in
every meaningful way.

Regards

Erik

On 11/18/2014 17:41, Jerry Lowry wrote:
</pre>
      <blockquote type="cite">
        <pre wrap="">Hello,
I am hoping that you may be able to help me solve a problem I have
encountered with UW-imapd.
We have been running the UW-imap application for quite a while.  First
on a Sun system and now we have upgraded [2011] to imap-2007f running on
a Centos system. I have noticed lately that imapd segfaults. I was
wondering what I can do to determine the cause or if this is known
problem and there is a fix that I can apply?

[System]
Centos 6.5
2.6.32-431.1.2.0.1.el6.x86_64 kernel
memory = 16G
total of 35 users

[messages]
Nov 18 15:05:49 mailsvr kernel: imapd[11359]: segfault at 0 ip
0000000000457ca9 sp 00007fff123174d0 error 4 in imapd[400000+f5000]

[configuration files]
service imap
{
    disable    = no
    socket_type    = stream
    wait        = no
    user        = root
    server        = /usr/local/sbin/imapd
    groups        = yes
    flags        = REUSE
}

defaults
{
# The next two items are intended to be a quick access place to
# temporarily enable or disable services.
#
#    enabled        =
#    disabled    =

# Define general logging characteristics.
    log_type    = SYSLOG daemon info
    log_on_failure    = HOST
    log_on_success    = PID HOST DURATION EXIT

# Define access restriction defaults
#
#    no_access    =
#    only_from    =
#    max_load    = 0
    cps        = 200 10
    instances    = UNLIMITED
    per_source    = 100

# Address and networking defaults
#
#    bind        =
#    mdns        = yes
    v6only        = no

# setup environmental attributes
#
#    passenv        =
    groups        = yes
    umask        = 002

# Generally, banners are not used. This sets up their global defaults
#
#    banner        =
#    banner_fail    =
#    banner_success    =
}

includedir /etc/xinetd.d


thanks,
-- 

---------------------------------------------------------------------------
Jerold Lowry
IT Manager / Software Engineer
Engineering Design Team (EDT), Inc. a HEICO company
1400 NW Compton Drive, Suite 315
Beaverton, Oregon 97006 (U.S.A.)
Phone: 503-690-1234 / 800-435-4320
Fax: 503-690-1243
Web: _www.edt.com <a class="moz-txt-link-rfc2396E" href="http://www.edt.com/">&lt;http://www.edt.com/&gt;</a>_

 




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</pre>
      </blockquote>
      <pre wrap="">_______________________________________________
Imap-uw mailing list
<a class="moz-txt-link-abbreviated" href="mailto:[email protected]">[email protected]</a>
<a class="moz-txt-link-freetext" href="http://mailman13.u.washington.edu/mailman/listinfo/imap-uw">http://mailman13.u.washington.edu/mailman/listinfo/imap-uw</a>
</pre>
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_______________________________________________
Imap-uw mailing list
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