Sounds good.  Let me know if there is more information I can get out of gdb.

On Fri, Apr 13, 2018 at 8:14 AM, Andreas Hasenack <email address hidden>
wrote:

> Thanks for the troubleshooting. I'm taking a look.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1745817
>
> Title:
>   autofs 5.1.2-1ubuntu2 crashes on nfs mount
>
> Status in autofs package in Ubuntu:
>   Confirmed
>
> Bug description:
>   Using the latest autofs package (with libtirpc support) the automount
>   process crashes when mounting a nfs share (at least when using IPv4).
>
>   I am using a file /etc/auto.master.d/net.autofs to be able to mount
>   arbitrary nfs shares to /net:
>
>   /net    -hosts -intr,soft --timeout=60
>
>   When trying to access a share (e.g. with the command "cd
>   /net/192.168.1.104" - using the hostname has the same effect)
>   automount crashes:
>
>   $ sudo systemctl stop autofs.service
>   $ source /etc/default/autofs
>   $ sudo gdb --args /usr/sbin/automount $OPTIONS -d -v -f
>   (gdb) run
>   [...]
>   attempting to mount entry /net/192.168.1.104
>   lookup_mount: lookup(hosts): 192.168.1.104 -> (null)
>   get_exports: lookup(hosts): fetchng export list for 192.168.1.104
>
>   Thread 6 "automount" received signal SIGSEGV, Segmentation fault.
>   [Switching to Thread 0x7ffff7fc7700 (LWP 4640)]
>   0x0000000000000000 in ?? ()
>   (gdb) bt
>   #0  0x0000000000000000 in ?? ()
>   #1  0x00007ffff435b8dc in ?? () from /lib/x86_64-linux-gnu/libtirpc.so.1
>   #2  0x00007ffff29b11ec in ?? () from /usr/lib/x86_64-linux-gnu/
> autofs/lookup_hosts.so
>   #3  0x00007ffff29b23fa in rpc_get_exports () from
> /usr/lib/x86_64-linux-gnu/autofs/lookup_hosts.so
>   #4  0x00007ffff29ad516 in ?? () from /usr/lib/x86_64-linux-gnu/
> autofs/lookup_hosts.so
>   #5  0x00007ffff29ae013 in lookup_mount () from /usr/lib/x86_64-linux-gnu/
> autofs/lookup_hosts.so
>   #6  0x000055555556c70d in do_lookup_mount ()
>   #7  0x000055555556d441 in lookup_nss_mount ()
>   #8  0x00005555555634d5 in ?? ()
>   #9  0x00007ffff7bbd7fc in start_thread () from /lib/x86_64-linux-gnu/
> libpthread.so.0
>   #10 0x00007ffff7325b0f in clone () from /lib/x86_64-linux-gnu/libc.so.6
>
>   The segfault disappears if the autofs package is recompiled without
>   "--with-libtirpc" in debian/rules.
>
>   $ lsb_release -rd
>   Description:  Ubuntu Bionic Beaver (development branch)
>   Release:      18.04
>
>   $ apt-cache policy autofs
>   autofs:
>     Installiert:           5.1.2-1ubuntu2
>     Installationskandidat: 5.1.2-1ubuntu2
>     Versionstabelle:
>    *** 5.1.2-1ubuntu2 500
>           500 http://de.archive.ubuntu.com/ubuntu bionic/main amd64
> Packages
>           100 /var/lib/dpkg/status
>
>   $ apt-cache policy libtirpc1
>   libtirpc1:
>     Installiert:           0.2.5-1.2
>     Installationskandidat: 0.2.5-1.2
>     Versionstabelle:
>    *** 0.2.5-1.2 500
>           500 http://de.archive.ubuntu.com/ubuntu bionic/main amd64
> Packages
>           100 /var/lib/dpkg/status
>
>   BTW: libtirpc1 seems to be quite old in Ubuntu, the current release is
>   1.0.2
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/autofs/+bug/
> 1745817/+subscriptions
>