Anybody has a clue what to do with a segfault in libvirtd? ------------------------------ installed new server @ hetzner different partitions incl. LVM for virtualization disks --------------------- progs installed: htop mc fail2ban locate apticron mailutils postfix bash-completion bridge-utils ntp rkhunter smartmontools ntp additionally configured: hostname and hosts, ipv6-leaveout for debian-mirror, fail2ban for ssh, firewall (iptables), rkhunter, smartd Mailing, RAID Mailing, bridge for virtualization (hetzner suggestion) .......... then: apt install qemu-kvm libvirt-daemon-system resulting in: ... Code: Setting up libvirt-daemon-system (3.0.0-4) ... Job for libvirtd.service failed because a fatal signal was delivered to the control process. See "systemctl status libvirtd.service" and "journalctl -xe" for details. invoke-rc.d: initscript libvirtd, action "start" failed. ● libvirtd.service - Virtualization daemon Loaded: loaded (/lib/systemd/system/libvirtd.service; enabled; vendor preset: enabled) Active: activating (auto-restart) (Result: signal) since Tue 2017-08-01 18:19:09 CEST; 7ms ago Docs: man:libvirtd(8) http://libvirt.org Process: 2787 ExecStart=/usr/sbin/libvirtd $libvirtd_opts (code=killed, signal=SEGV) Main PID: 2787 (code=killed, signal=SEGV) Aug 01 18:19:09 harry systemd[1]: libvirtd.service: Unit entered failed state. Aug 01 18:19:09 harry systemd[1]: libvirtd.service: Failed with result 'signal'. dpkg: error processing package libvirt-daemon-system (--configure): subprocess installed post-installation script returned error exit status 1 ... Errors were encountered while processing: libvirt-daemon-system ......... systemctl status libvirtd.service brings: Code: Aug 01 18:19:10 harry systemd[1]: Failed to start Virtualization daemon. Aug 01 18:19:10 harry systemd[1]: libvirtd.service: Unit entered failed state. Aug 01 18:19:10 harry systemd[1]: libvirtd.service: Failed with result 'signal'. Aug 01 18:19:11 harry systemd[1]: libvirtd.service: Service hold-off time over, scheduling restart. Aug 01 18:19:11 harry systemd[1]: Stopped Virtualization daemon. Aug 01 18:19:11 harry systemd[1]: libvirtd.service: Start request repeated too quickly. Aug 01 18:19:11 harry systemd[1]: Failed to start Virtualization daemon. Aug 01 18:19:11 harry systemd[1]: libvirtd.service: Unit entered failed state. Aug 01 18:19:11 harry systemd[1]: libvirtd.service: Failed with result 'signal'. .................. grep libvirtd /var/log/syslog brings one by one retrying again and again -- segfault: Code: Aug 1 18:19:09 harry kernel: [ 358.621561] libvirtd[2787]: segfault at 0 ip 00007fd7966db24f sp 00007ffe4abaea40 error 4 in libc-2.24.so[7fd796609000+195000] Aug 1 18:19:10 harry kernel: [ 358.870880] libvirtd[2794]: segfault at 0 ip 00007f6e9635a24f sp 00007ffff97561d0 error 4 in libc-2.24.so[7f6e96288000+195000] Aug 1 18:19:10 harry kernel: [ 359.120821] libvirtd[2797]: segfault at 0 ip 00007f3e1d66124f sp 00007ffe65174d20 error 4 in libc-2.24.so[7f3e1d58f000+195000] ............................. wanted to install package libvirt0-dbg, but it doesn't exist for stretch!? https://wiki.debian.org/libvirt/Debugging
Did the following: Code: apt install gdb libvirt0-dbgsym gdb libvirtd (gdb) set pagination 0 (gdb) run (gdb) bt This resulted in: Code: #0 0x00007ffff3d7424f in gaiconf_init () at ../sysdeps/posix/getaddrinfo.c:2018 From there I knew that I made changes in /etc/gai.conf, becaue ipv6 sometimes doesn't work with debian-mirrors, so I wanted to exclude them. Finally I undid my changes to /etc/gai.conf and it works again. Any suggestions where to post this bug, if it is one? Maybe I also did some mistakes in that file, although it worked properly before: Code: # Make IPv6 for security.debian.org undesirable #precedence 2001:a78:5:1:216:35ff:fe7f:6ceb 5 #precedence 2a02:16a8:dc41:100::233 5 #precedence 2001:a78:5:0:216:35ff:fe7f:be4f 5
