On Sun, 2019-04-07 at 09:51 +0300, Rokas Kupstys wrote: > On 2019-03-31 19:42, Rokas Kupstys wrote: > > Since 4.19 booting a kvm VM results in eventual system lockup. dmesg > > is full of warnings of watchdog detecting cpu lockups. I posted log > > and more details at https://bugzilla.kernel.org/show_bug.cgi?id=201959 > > and i also found out issue started appearing at > > 9cf57731b63e37ed995b46690adc604891a9a28f > > > > Could someone take a look please? > > > > Since noone replied neither in mailing list nor in bug tracker - was i > supposed to report issue somewhere else? > Did you change any settings related to watchdog in /proc/sys/ ? I distinclty remember that I once had some trouble with watchdog, but I don't remember what it was, when I disabled the watchdog prior to VM startup (it supposed to improve latency) on my gaming system, which I don't have anymore. You should ping the authors of commit you bisected, and CC the LKML. Best regards, Maxim Levitsky
