Hi Paul, On Thursday, 23 June 2022 10:44:49 CEST Paul Gevers wrote: > Hi Diederik, > > On 22-06-2022 23:15, Diederik de Haas wrote: > > Hmm ...interesting. AFAIK that is a watchdog's task. > > > > On Saturday, 4 December 2021 22:44:38 CEST Paul Gevers wrote: > >> I noticed in the logs that *after* the reported kernel bug but before > >> the actual hang, I see multiple instances of: > >> watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [apt-get:2204621] > >> and > >> watchdog: BUG: soft lockup - CPU#2 stuck for 22s! [kcompactd0:40] > >> on ci-worker-arm64-07. > > > > And here is where I saw it. (My watchdog issue doesn't cause a hang btw) > > That might be, but this doesn't result in a successful reboot (of the > system, maybe you meant a reboot of the core?).
That was actually my point :-) AFAIK (which is limited), the whole point of the watchdog is to reboot (the system I'd guess) when things get stuck. That that didn't happen, is worth noting > > If you have access to the host, APT should be able to tell you. > > Depends on what you mean with "the host". Our VM (our host) is > provisioned by Huawei (their host). I have access to our host. To talk in Xen terms, I meant dom0 as host. I'd guess that qemu would create a VM from that host. (and in Xen terms, the created VM would be a domU). > root@ci-worker-arm64-02:~# apt list *qemu* --installed > qemu-utils/stable-security,now 1:5.2+dfsg-11+deb11u2 arm64 > [installed,automatic] Maybe things work different wrt qemu, but that's the version I was looking for. > > Via sources.list.erb I found that "< %= node['debian_release'] > > %>-backports" gets enabled, which I assume results in Stable-backports. > > Correct, but currently we don't install anything from there. Ack. It is what I thought (but didn't know). > > It appears that various tools get installed (but I don't see qemu > > mentioned (explicitly), but I do see 'virt-what' and the package > > description seems to indicate it may be useful to figure out detail of > > the VM. > > root@ci-worker-arm64-02:~# virt-what > qemu > root@ci-worker-arm64-02:~# virt-what --version > 1.19 Less useful then I'd hoped, but you earlier already found the qemu version :-)
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