Re: xenconsoled defunct after xl create on fresh debian 12

[Volker Weber <xen-users@xxxxxxxxxxxxxxxxxx>]

Hi,

any ideas or hints to progress?

Regards
  Volker

Am 12.01.24 um 11:39 schrieb Volker Weber:
> Hi,
>
> i can't start any guests on a fresh installed debian 12 system. xl 
> create fails after ~10s with timeout accessing console tty:
> $ sudo xl create /opt/inexso-xen/hosts/btest.webertest.inexso.intra.cfg
> Parsing config from /opt/inexso-xen/hosts/btest.webertest.inexso.intra.cfg
> libxl: error: libxl_create.c:1976:console_xswait_callback: domain 1 
> console tty: timed out
> libxl: error: libxl_domain.c:1183:libxl__destroy_domid: Domain 
> 1:Non-existant domain
> libxl: error: libxl_domain.c:1137:domain_destroy_callback: Domain 
> 1:Unable to destroy guest
> libxl: error: libxl_domain.c:1064:domain_destroy_cb: Domain 
> 1:Destruction of domain failed
>
> trying to debug this i found xenconsoled crashed after first try to 
> start an vm.
> Before xl create, just after fresh reboot:
>
> $ ps auxf | grep xen
> root          65  0.0  0.0      0     0 ?        S    14:31   0:00  \_ 
> [xenbus]
> root          66  0.0  0.0      0     0 ?        S    14:31   0:00  \_ 
> [xenwatch]
> root          76  0.0  0.0      0     0 ?        S    14:31   0:00  \_ 
> [xen-balloon]
> root        1066  0.0  0.0  11692  3932 ?        S    14:31   0:00 
> /usr/lib/xen-4.17/bin/oxenstored --pid-file /run/xenstore.pid
> root        1076  0.0  0.0  68448  1716 ?        Sl   14:31   0:00 
> /usr/lib/xen-4.17/bin/xenconsoled --pid-file /run/xenconsoled.pid
> root        1096  0.0  0.0 244484 12612 ?        Sl   14:31   0:00 
> /usr/libexec/xen-qemu-system-i386 -xen-domid 0 -xen-attach -name dom0 
> -nographic -M xenpv -daemonize -monitor none -serial none -parallel none 
> -pidfile /run/qemu-dom0.pid
> Some seconds after xl create:
>
> $ ps auxf | grep xen
> root          65  0.0  0.0      0     0 ?        S    14:31   0:00  \_ 
> [xenbus]
> root          66  0.0  0.0      0     0 ?        S    14:31   0:00  \_ 
> [xenwatch]
> root          76  0.8  0.0      0     0 ?        S    14:31   0:01  \_ 
> [xen-balloon]
> root        1066  0.0  0.0  11696  5076 ?        S    14:31   0:00 
> /usr/lib/xen-4.17/bin/oxenstored --pid-file /run/xenstore.pid
> root        1076  0.0  0.0      0     0 ?        Zl   14:31   0:00 
> [xenconsoled] <defunct>
> root        1096  0.0  0.0 244484 12612 ?        Sl   14:31   0:00 
> /usr/libexec/xen-qemu-system-i386 -xen-domid 0 -xen-attach -name dom0 
> -nographic -M xenpv -daemonize -monitor none -serial none -parallel none 
> -pidfile /run/qemu-dom0.pid
> root        3344  0.0  0.0  10128  4796 pts/0    S+   14:33   0:00  | 
>         \_ sudo xl create 
> /opt/inexso-xen/hosts/btest.webertest.inexso.intra.cfg
> root        3345  0.0  0.0  10260   508 pts/4    Ss   14:33   0:00  | 
>             \_ sudo xl create 
> /opt/inexso-xen/hosts/btest.webertest.inexso.intra.cfg
> root        3346 24.1  0.1 114228 47284 pts/4    Sl+  14:33   0:01  | 
>                 \_ /usr/lib/xen-4.17/bin/xl create 
> /opt/inexso-xen/hosts/btest.webertest.inexso.intra.cfg
>
> the xenconsoled is crashed.
>
>
> Some additional information, in /var/log/xen/xenstored-access.log i found:
>
> [20240110T14:10:18.476Z]  A9           write /local/domain/1/console/tty 
> /dev/pts/4
> and (here are the 10s timeout)
>
> [20240111T12:44:15.414Z]  A9           watch /local/domain/1/console/tty 
> 2/4
> [20240111T12:44:15.414Z]  A9           w event 
> /local/domain/1/console/tty 2/4
> [20240111T12:44:25.424Z]  A9           unwatch 
> /local/domain/1/console/tty 2/4
>
> at this point there is no /dev/pts/4. Before xl create there are pst 0, 
> 1 and 2, during xl create hangs there is also a pts 3.
> I can reproduce this at every reboot.
>
> Any Ideas how to solve this?
>
> Regards,
>
>    Volker Weber