[Samba] Upgrade 4.9 -> 4.11 oups

[Andrew Bartlett]

On Tue, 2020-03-03 at 17:17 +0000, MORILLO Jordi via samba wrote:
> Hello !
> 
> I decided to upgrade my fileservers from stretch/samba 4.9 to
> buster/samba 4.11
> I just realized that smbd is not working anymore :-/
> If someone has an idea It would be amazing... as an idiot, I upgraded
> my 20 servers.... without snapshot....
> Thank you so much
> 
> Here's some logs :
> 
> root at ef113:~# tail /var/log/samba/log.smbd
>    #1 /usr/lib/x86_64-linux-gnu/libsmbconf.so.0(smb_panic_s3+0x18)
> [0x7fa495498a48]
>    #2 /usr/lib/x86_64-linux-gnu/libsamba-util.so.0(smb_panic+0x2d)
> [0x7fa4958d3cad]
>    #3 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1baa9a)
> [0x7fa4956e9a9a]
>    #4 /usr/lib/x86_64-linux-gnu/samba/libsmbd-base.so.0(+0x1bae13)
> [0x7fa4956e9e13]
>    #5 /usr/lib/x86_64-linux-gnu/samba/libsmbd-
> shim.so.0(exit_server+0x14) [0x7fa494cd9264]
>    #6 /usr/sbin/smbd(main+0x13d2) [0x564221a6d402]
>    #7 /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xeb)
> [0x7fa49370209b]
>    #8 /usr/sbin/smbd(_start+0x2a) [0x564221a6defa]
> [2020/03/03 18:10:46.174670,  0]
> ../../source3/lib/dumpcore.c:315(dump_core)
>   dumping core in /var/log/samba/cores/smbd

There should be more information in the logs than that, can you get
some more context please?  Then set 'panic action =
/path/to/gdb_backtrace %d' to point at this script:
https://git.samba.org/?p=samba.git;a=blob_plain;f=selftest/gdb_backtrace

Install the full debug packages first, so we get a good line number.

Thanks!

Andrew Bartlett
-- 
Andrew Bartlett
https://samba.org/~abartlet/
Authentication Developer, Samba Team         https://samba.org
Samba Development and Support, Catalyst IT - Expert Open Source
Solutions
https://catalyst.net.nz/services/samba