dovecot-pigeonhole running external script ends with signal 11

[Aki Tuomi]

On 04.01.2017 09:49, Tobi wrote:
> Hi Stephan
>
> Am 03.01.2017 um 21:12 schrieb Stephan Bosch:
>
>> Since you're using LMTP, you could try to run the lmtp service from
>> command line in GDB. In essence, this looks as follows (you will need to
>> run this as the mail user, e.g. vmail, or you can run it as root):
>>
>> $ gdb --args /usr/lib/dovecot/lmtp 
> I did so and it seems that libc.so.6 throws the error as I get the
> following result (as root):
>
> [New process 14843]
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to process 14843]
> 0x00007ffff7241b71 in __strlen_sse2 () from /lib64/libc.so.6
>
> bt full does not give me more than this
>
> #0  0x00007ffff7241b71 in __strlen_sse2 () from /lib64/libc.so.6
> No symbol table info available.
> Cannot access memory at address 0x7fffffffd848
>
> Then I installed debuginfo for glibc via debuginfo-install
> glibc-2.17-157.el7_3.1.x86_64 and get
>
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to process 18099]
> __strlen_sse2 () at ../sysdeps/x86_64/strlen.S:31
> 31		movdqu	(%rdi), %xmm1
>
> So this is an issue for glibc developpers? Just wonder why this error
> does not occur if I call the script directly on cli or if I use
> sieve-test program. It seems only to occur if the script called from dovecot
>
> To compare I tried gdb as well as user vmail and get more detailed
> information
>
> [New process 20844]
> Program received signal SIGSEGV, Segmentation fault.
> [Switching to process 20844]
> 0x00007ffff7203694 in _IO_vfprintf_internal (s=s at entry=0x7fffffffd710,
> format=<optimized out>,
>     format at entry=0x555555764938 "chroot(%s) failed: Bad address",
> ap=ap at entry=0x7fffffffd970) at vfprintf.c:1635
> 1635		  process_string_arg (((struct printf_spec *) NULL));
>
> bt full does return much more in this case. I attached that output as
> bt_full.txt to this mail (maybe it can be of help)
>
> Thanks for your help
>
> tobi
>

Did you update both dovecot *and* pigeonhole when you last updated?

Aki