Re: VMs freezing when host is running 4.14

From: Liran Alon
Date: Thu Nov 23 2017 - 11:26:50 EST




On 23/11/17 18:24, Radim KrÄmÃÅ wrote:
2017-11-23 18:18+0200, Liran Alon:
On 23/11/17 17:59, Radim KrÄmÃÅ wrote:
Btw. there have been already many fixes from Liran Alon for that patch
and your case could be the one adressed in
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.spinics.net_lists_kvm_msg159158.html&d=DwIDaQ&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=Jk6Q8nNzkQ6LJ6g42qARkg6ryIDGQr-yKXPNGZbpTx0&m=206jU1rQdk3xs1DYWbQPz1gR7Iim02XOjwn458rwgIo&s=fz1JeZiSQBwqYpkmeX8OJukyC4M8BeXSuIOKwuVaeHg&e=

The patch is incorrect, but you might be able to see only its benefits.

Actually I would first attempt to check this patch of mine:
https://urldefense.proofpoint.com/v2/url?u=https-3A__www.spinics.net_lists_kvm_msg159062.html&d=DwIDaQ&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=Jk6Q8nNzkQ6LJ6g42qARkg6ryIDGQr-yKXPNGZbpTx0&m=rrMFkfAUbtL2483mBNnqlNlY4qjSYBGNcZrGkRksaVQ&s=TyykS9RM7nBGxt3GgdD7Oo96RWf8ntIDptU9LJ9fQ8g&e=
It fixes a bug of a L2 exception accidentally being delivered into L1.

Marc's guest didn't have kvm/vbox/... module loaded, so I assumed that
we're not running L2. Do you suspect it also fixes something else?

Thanks.

Oh I see.
If there is no nested guest so no. My fix here probably won't help.

-Liran