On 2019-04-07 14:53, Maxim Levitsky wrote:
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
Indeed this was the case. And it seems i finally set out to bisect the
issue soon after fix was landed. Issue was fixed in
53464ca9130be5466ada7b9dd653059c3a26cad9 and (to my surprise) 5.0.6
kernel no longer has this issue.
Thank you for reply and thanks to Thomas Gleixner for the fix.
--
Rokas Kupstys
