action #14334
Updated by SLindoMansilla almost 7 years ago
## observation
[t#621407](https://openqa.suse.de/tests/621407) is incomplete. https://openqa.suse.de/tests/621407/file/autoinst-log.txt shows the error details
```
DIE Died at /usr/lib/os-autoinst/consoles/vnc_base.pm line 76.
at /usr/lib/os-autoinst/backend/baseclass.pm line 73.
backend::baseclass::die_handler('Died at /usr/lib/os-autoinst/consoles/vnc_base.pm line 76.\x{a}') called at /usr/lib/os-autoinst/consoles/vnc_base.pm line 76
consoles::vnc_base::catch {...} ('Error connecting to host <localhost>\x{a}$VAR1 = bless( {\x{a} ...') called at /usr/lib/perl5/vendor_perl/5.18.2/Try/Tiny.pm line 104
Try::Tiny::try('CODE(0x61b1c78)', 'Try::Tiny::Catch=REF(0x627a2b8)') called at /usr/lib/os-autoinst/consoles/vnc_base.pm line 80
consoles::vnc_base::connect_vnc('consoles::vnc_base=HASH(0x61b9a20)', 'HASH(0x5f79320)') called at /usr/lib/os-autoinst/consoles/vnc_base.pm line 37
consoles::vnc_base::activate('consoles::vnc_base=HASH(0x61b9a20)') called at /usr/lib/os-autoinst/consoles/console.pm line 74
consoles::console::select('consoles::vnc_base=HASH(0x61b9a20)') called at /usr/lib/os-autoinst/backend/baseclass.pm line 469
backend::baseclass::select_console('backend::qemu=HASH(0x60c04b0)', 'HASH(0x61b99a8)') called at /usr/lib/os-autoinst/backend/qemu.pm line 679
backend::qemu::start_qemu('backend::qemu=HASH(0x60c04b0)') called at /usr/lib/os-autoinst/backend/qemu.pm line 98
backend::qemu::do_start_vm('backend::qemu=HASH(0x60c04b0)') called at /usr/lib/os-autoinst/backend/baseclass.pm line 255
backend::baseclass::start_vm('backend::qemu=HASH(0x60c04b0)', undef) called at /usr/lib/os-autoinst/backend/baseclass.pm line 68
backend::baseclass::handle_command('backend::qemu=HASH(0x60c04b0)', 'HASH(0x6161500)') called at /usr/lib/os-autoinst/backend/baseclass.pm line 427
backend::baseclass::check_socket('backend::qemu=HASH(0x60c04b0)', 'IO::Handle=GLOB(0x608c5b8)') called at /usr/lib/os-autoinst/backend/qemu.pm line 893
backend::qemu::check_socket('backend::qemu=HASH(0x60c04b0)', 'IO::Handle=GLOB(0x608c5b8)', 0) called at /usr/lib/os-autoinst/backend/baseclass.pm line 209
eval {...} called at /usr/lib/os-autoinst/backend/baseclass.pm line 171
backend::baseclass::run_capture_loop('backend::qemu=HASH(0x60c04b0)', 'IO::Select=ARRAY(0x60095e8)') called at /usr/lib/os-autoinst/backend/baseclass.pm line 120
backend::baseclass::run('backend::qemu=HASH(0x60c04b0)', 6, 10) called at /usr/lib/os-autoinst/backend/driver.pm line 85
backend::driver::start('backend::driver=HASH(0x3fbc450)') called at /usr/lib/os-autoinst/backend/driver.pm line 48
backend::driver::new('backend::driver', 'qemu') called at /usr/bin/isotovideo line 177
main::init_backend() called at /usr/bin/isotovideo line 236
05:44:49.2515 13306 waitpid for 13314 returned 13314
05:44:49.2519 13306 QEMU: qemu-system-x86_64: -netdev tap,id=qanet0,ifname=tap00,script=/etc/qemu-ifup-br0,downscript=no: could not configure /dev/net/tun (tap00): Device or resource busy
05:44:49.2520 13306 QEMU: qemu-system-x86_64: -netdev tap,id=qanet0,ifname=tap00,script=/etc/qemu-ifup-br0,downscript=no: Device 'tap' could not be initialized
```
## reproducible
Looking at https://openqa.suse.de/tests?hoursfresh=24&match=hacluster-supportserver shows that this happens a lot but not every time
## problem
H1. problem with setting up the tun device
H1.1. tun device fails for high instance worker numbers (see #14334#note-7)
H2. conflict with other jobs accessing the same devices at the same time
## workaround
restart seems to help
1. Look if other instance of supportserver is running (which is using the same tun device)
2. If this instance is in "zombie modus" (parralels are incomplete, passed, failed, parallel restarted, also the support server is no more necessary for any job)
Cancel this zombie instance.
3. Restart the parallels (the supportserver will be retriggered)