child killed by signal 6

[Aki Tuomi]

> On 25/05/2020 13:00 Peter Nabbefeld <peter.nabbefeld at gmx.de> wrote:
> 
>  
> Hello,
> 
> from time to time I keep getting problems with some emails causing
> signal 6. I've already reported those, but it seems not to be easy to
> find the cause. From the logs, it seems to occur in sieve implementation.
> 
> I've checked the email envelopes tody by accident, probably this part of
> my telnet session might help:
> 
> a11 fetch 1 all
> * 1 FETCH (RFC822.SIZE 16750 INTERNALDATE "22-May-2020 05:02:34 +0000"
> ENVELOPE ("Fri, 22 May 2020 03:46:54 +0000" "RE: Http2 tomact server
> taking time in responding when 1st StreamId is a large integer value
> like 2147483641" (("Prateek Kohli" NIL "prateek.kohli"
> "ericsson.com.INVALID")) (("Prateek Kohli" NIL "prateek.kohli"
> "ericsson.com.INVALID")) (("Tomcat Users List" NIL "users"
> "tomcat.apache.org")) (("Tomcat Users List" NIL "users"
> "tomcat.apache.org")) NIL NIL
> "<d778507f-306b-5395-b583-fc1f2651431d at apache.org>" "
> <DB7PR07MB40285E61F0731810A615E3FB92B40 at DB7PR07MB4028.eurprd07.prod.outlook.com>")
> FLAGS (\Seen))
> a11 OK FETCH completed
> 
> a12 fetch 2 all
> * 2 FETCH (RFC822.SIZE 21146 INTERNALDATE "22-May-2020 06:39:54 +0000"
> ENVELOPE ("Fri, 22 May 2020 06:39:35 +0000" "RE: RST on TCP level sent
> by Tomcat" (("Arshiya Shariff" NIL "arshiya.shariff"
> "ericsson.com.INVALID")) (("Arshiya Shariff" NIL "arshiya.shariff"
> "ericsson.com.INVALID")) (("Tomcat Users List" NIL "users"
> "tomcat.apache.org")) (("Tomcat Users List" NIL "users"
> "tomcat.apache.org")) (("markt at apache.org" NIL "markt" "apache.org")("M
> Venkata Pratap M" NIL "m.m.venkata.pratap" "ericsson.com")) NIL "
> <AM7PR07MB6561761FA78F23F5AAF398399FB70 at AM7PR07MB6561.eurprd07.prod.outlook.com>"
> "
> <AM7PR07MB65615CD03F422AC8D8384FC09FB40 at AM7PR07MB6561.eurprd07.prod.outlook.com>")
> FLAGS ())
> a12 OK FETCH completed
> 
> The first message causes signal 6, the second does not. Probably the
> problem is killed by the two consecutive "NIL"s? I'm not an experienced
> administrator, only managing my private computer, so I don't know the
> meaning of every envelope field. But might these two "NIL"s cause the abort?
> 
> BTW, to download all messages from my IMAP account to my private dovecot
> instance I had to delete the first message, since I couldn't download
> any other messages from the IMAP folder otherwise.
> 
> Kind regards
> 
> Peter

Hi!

Can you provide the original mail? Optionally processed via https://dovecot.org/tools/maildir-obfuscate.pl ?

Also, can you provide 'doveconf -n' output?

Aki