Re: [exim] queue run: process crashed with signal 11 while d…

Top Page
Delete this message
Reply to this message
Author: W B Hacker
Date:  
To: exim users
Subject: Re: [exim] queue run: process crashed with signal 11 while delivering
Keefe John wrote:
> Bill,
>
> Thanks for the response.


Apparently my encoding (force UTF-8 in your MUA if it doesn't display as
Chinese) went through OK then?

>
> Here are some of them that are sitting in my queue:
>
> 056F From: =?koi8-r?B?7sHUwczY0Q==?= <fomuconyferi@???>
> 064F From: "=?windows-1254?Q?Evg=F6r_Mobilya?=" <evgormob@???>
> 074F From: "=?iso-8859-9?B?S2FodmFsdP0gTWVrYW79?=" <kahvalti@???>
> 058F From: =?koi8-r?B?8MXU0Q==?= <fekonyjatuwarygesa@???>
> 077F From: =?windows-1251?B?7C7W4uXy7e7pIOHz6/zi4PA=?= <yaomin3534wojtek@???>
> 067F From: =?windows-1251?B?8eDp8g==?= <sivakumataylor@???>
>
> It also happens when the subject is funky, like this example:
>
> 052F From: Mrs Rosemary Collins <mrs_rosemary12@???>
> 187 Subject: =?windows-1256?Q?DEAR_FRIEN?= =?windows-1256?Q?D_PLEASE_R?=
>
> Thanks again,
>
> Keefe
>


Not sure at this point if those are 'otherwise' valid messages, or soem for of
malware.

BUT -- all of those carry intial strings that are indicative of use of non-ASCII
character sets. The smtp standard very much prefers 7-bit ASCII in the
'envelope' & headers, and even in 'content' (body and attachments) *unless*
identified as recognized MIME type encodings.

Exim is more forgiving - it is inherently '8-bit clean', ordinarily just ignores
those *unless* it cannot use them at all.

You mentioned Debian, so if you are using the common Debian-specific
configuration tools, we may have pinned-down 'a' cause, but I am out of
suggestions as to where to look for a solution.

A long shot - but given where it is crashing, it might even be related to the
underlying OS or file system in use.

There is a specialized support mailing list for Debian-Exim, and there should be
more expert solutions there somewhere, as the author's native code-set is not
ASCII, either, and he is for-sure a Debian user as well as developer.

Wander over there and see what an archive search turns up. URI is in your docs.

Best,

Bill



>
> -----Original Message-----
> From: 韓家標 Bill Hacker [mailto:askbill@conducive.net]
> Sent: Sunday, May 17, 2009 10:47 PM
> To: Keefe John
> Subject: Re: [exim] queue run: process crashed with signal 11 while delivering
>
>
>
> John,
>
> OFF LIST
>
> To try to track down those odd 'From:' headers.
>
> This account has Chinese characters in the longname - but not windows-1254 encoded.
>
> I'll post more on-list once we see what this does.
>
> .. I'm suspecting the messages you mention are coming off PDA's..
>
> Best,
>
> Bill Hacker
>
> wbh@???
>
>
>
> Keefe John wrote:
>> Hello,
>>
>> Recently I've been having a problem with exim and I've been pulling out my
>> hair trying to figure it out. Basically what is happening is that when
>> people send my server mail with strange From: headers the system has
>> problems. Here's an example of a From: field that would cause a problem:
>> From: "=?windows-1254?Q?Evg=F6r_Mobilya?=" evgormob@???. It seems to
>> be related to From fields that have =? in them.
>>
>> When these emails come in, which happens to be all the time, a number of
>> things happen. Firstly, the exim queue freaks out:
>>
>> 2009-05-17 12:33:27 queue run: process 351 crashed with signal 11 while
>> delivering 1M4MG2-0002y4-5z
>> 2009-05-17 12:33:27 queue run: process 353 crashed with signal 11 while
>> delivering 1M1omA-0002WY-3M
>> 2009-05-17 12:33:27 queue run: process 354 crashed with signal 11 while
>> delivering 1M1flT-0005z1-J4
>> 2009-05-17 12:33:27 queue run: process 355 crashed with signal 11 while
>> delivering 1M5IZ7-0003Pd-K5
>> 2009-05-17 12:33:27 queue run: process 360 crashed with signal 11 while
>> delivering 1M1ZXv-00007r-29
>> 2009-05-17 12:33:27 queue run: process 369 crashed with signal 11 while
>> delivering 1M52Vd-00085s-FE
>>
>> I'll also see a number errors like this:
>>
>> 2009-05-17 21:14:31 1M5qbz-00082q-1M internal problem in domain_filter
>> router (recipient is info@???): failure to transfer data from
>> subprocess: status=000b readerror='Success'
>>
>> I'm running Exim 4.69 on Debian 5.
>>
>> How do I fix this?
>>
>> Keefe John
>> Techware
>>
>>
>>
>
>