Learning ham/spam with IMAPSieve: sa-learn-ham.sh terminated abnormally, signal 11

[Jens Rey]

Hi,

> You can attach GDB to imap with follow-fork-mode set to 'child', so you 
> can maybe see what causes the segfault.

now I am confused. Hopefully, I used GDB correctly, but as far as I can 
see, everything seemed to work.

The only difference I can see is that I executed the whole thing as 
root, but I would hope doveadm uses the correct user (vmail). At least 
on the file system all emails still belong to vmail, so I guess that works.

For a quick reference, here is what I executed:

root at mail:~# gdb --args doveadm exec imap -u user at domain
...
(gdb) set follow-fork-mode child
(gdb) r
. SELECT Spam
. MOVE 1 Inbox

And the (imho) relevant output:

imap(user at domain)<13290><+PcoBrjs1F3qMwAAcD3JoA>: Debug: program 
exec:/usr/lib/dovecot/sieve/rspamd-learn-ham.sh: Establishing connection
[New process 13335]
imap(user at domain)<13290><+PcoBrjs1F3qMwAAcD3JoA>: Debug: program 
exec:/usr/lib/dovecot/sieve/rspamd-learn-ham.sh: Forked child process
imap(user at domain)<13290><+PcoBrjs1F3qMwAAcD3JoA>: Debug: program 
exec:/usr/lib/dovecot/sieve/rspamd-learn-ham.sh (13335): Connected to 
program
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
process 13335 is executing new program: /bin/dash
process 13335 is executing new program: /usr/bin/rspamc
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffee7ff700 (LWP 13338)]
[New Thread 0x7fffebffe700 (LWP 13339)]
[New Thread 0x7fffe97fd700 (LWP 13340)]
imap(user at domain)<13290><+PcoBrjs1F3qMwAAcD3JoA>: Debug: program 
exec:/usr/lib/dovecot/sieve/rspamd-learn-ham.sh (13335): Finished 
streaming payload to program
imap(user at domain)<13290><+PcoBrjs1F3qMwAAcD3JoA>: Debug: program 
exec:/usr/lib/dovecot/sieve/rspamd-learn-ham.sh (13335): Finished input 
to program
imap(user at domain)<13290><+PcoBrjs1F3qMwAAcD3JoA>: Debug: program 
exec:/usr/lib/dovecot/sieve/rspamd-learn-ham.sh (13335): Disconnected
imap(user at domain)<13290><+PcoBrjs1F3qMwAAcD3JoA>: Debug: program 
exec:/usr/lib/dovecot/sieve/rspamd-learn-ham.sh (13335): Waiting for 
program to finish after 886 msecs
[Thread 0x7fffe97fd700 (LWP 13340) exited]
[Thread 0x7fffebffe700 (LWP 13339) exited]
[Thread 0x7ffff7fd1140 (LWP 13335) exited]
[Inferior 2 (process 13335) exited normally]
imap(user at domain)<13290><+PcoBrjs1F3qMwAAcD3JoA>: Debug: program 
exec:/usr/lib/dovecot/sieve/rspamd-learn-ham.sh (13335): Child process ended
imap(user at domain)<13290><+PcoBrjs1F3qMwAAcD3JoA>: Debug: program 
exec:/usr/lib/dovecot/sieve/rspamd-learn-ham.sh (13335): Destroy
imap(user at domain)<13290><+PcoBrjs1F3qMwAAcD3JoA>: Info: sieve: pipe 
action: piped message to program `rspamd-learn-ham.sh'


There is more output, lots more, but we are talking about spam after 
all... If it is needed, please say so and I will provide it.

Regards,
Jens