On Wednesday, February 5, 2020 at 3:32:57 PM UTC+1, Claudia wrote: > > February 5, 2020 7:34 AM, "Günter Zöchbauer" <[email protected] > <javascript:>> wrote: > > > When I come back to my computer > > > > and log in on the dom0 lock screen, the machine often just reboots. > > > > Has anybody seen this? > > Any suggestions how to debug? > > You can try journalctl -b -1 -e, but it's probably not syncing the journal > before it reboots. > > Does it seem to freeze for five seconds before it reboots, or does it > reboot immediately? > > Does this also happen when you have no VMs running? For me, Xen seems to > reboot most often when it's low on memory. > > You can try adding noreboot=1 to the Xen command line, and look for any > console output when it crashes. If you're up to the task, you could try > enabling kernel crash dumps: > https://help.ubuntu.com/lts/serverguide/kernel-crash-dump.html >
Thanks for the suggestions. I'll check journalctl the next time it happens and also pay attention if there is a delay. I had more than one VM running every time. Memory in dom0: is currently with a typical workload KiB Mem : 3943504 total, 569480 free, 2147124 used, 1226900 buff/cache journalctl shows balance_when_enough_memory(xen_free_memory=27261583, total_mem_pref=12447403622.400002, total_available_memory=10625527248.599998 left_memory=4055249111 acceptors_count=6 The machine has 32G and it shouldn't use much that yet. It didn't even look like a crash. It looked like a proper reboot. I have added noreboot=1 and will report back if I find anything new. -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/d3387984-f514-4603-9e9e-f55c71997f18%40googlegroups.com.
