In reply to @hexa:lossy.network
now I kinda wish that wasn't on Ubuntu 😄

Core was generated by `ovn-controller unix:/var/run/openvswitch/db.sock -vconsole:emer -vsyslog:err -v'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x000055d7d4ee5115 in ?? ()
[Current thread is 1 (Thread 0x7fcddcdeda40 (LWP 148880))]
(gdb) bt full
#0  0x000055d7d4ee5115 in ?? ()
No symbol table info available.
#1  0x000055d7d4eda66f in ?? ()
No symbol table info available.
#2  0x00007fcddcf81d90 in __libc_start_call_main (main=main@entry=0x55d7d4ed6d10, argc=argc@entry=9, argv=argv@entry=0x7ffe758d0d18) at ../sysdeps/nptl/libc_start_call_main.h:58
        self = <optimized out>
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 5189023186381374695, 140730870598936, 94385478659344, 94385480238392, 140522160939072, -5188157755315911449, -5217238850608495385}, 
              mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x55d7d4edc433, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = -722615245}}}
        not_first_call = <optimized out>
#3  0x00007fcddcf81e40 in __libc_start_main_impl (main=0x55d7d4ed6d10, argc=9, argv=0x7ffe758d0d18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, 
    stack_end=0x7ffe758d0d08) at ../csu/libc-start.c:392
No locals.
#4  0x000055d7d4edd115 in ?? ()

# incus launch images:nixos/unstable test --vm
Launching test
Error: Failed instance creation: Failed creating instance from image: Failed to run: rbd --id admin --cluster ceph --pool incus_rbd map image_36c6ad72a4f802623d916ffa40c5230a88fc623d845a815089bb2ec45003ebab_ext4.block: exit status 110 (rbd: sysfs write failed
rbd: map failed: (110) Connection timed out)