On 2018-06-19, Leo Unglaub <l...@unglaub.at> wrote: > i have searched the list archive and found some similar reports but none > of them found a solution for the problem. (at least not the threads i > have found) > > I run some OpenBSD 6.3 instances in a virtual environment. The host is > some unknown Linux distribution with qemu on it. After the data center > updated there kernels and also qemu my virtual OpenBSD instances startet > to freeze randomly but almost always during login. They freeze up so > hard that i cannot drop into a debugger or get any output whatsoever. > There is not even a core dump, nothing. Just for testing purposes i > installed a 6.2 as well and did syspatch on it just to see if the error > happens there as well and it does. I have added a dmesg on the bottom of > the email. > > I talked to the people at the datacenter and they confirmed that they > did a Linux kernel update at the same time as the problems started. They > send me a link to this bug report here from Arch. They say they don't > use Arch, but the problem described here is exactly what i experienced > as well: https://bugs.archlinux.org/task/55231
They should try setting this on the host: kvm-intel.preemption_timer=0
