Hello Michal,

As already said, please open a bug. Double checking that disabling patches.fixes/mm-put_and_wait_on_page_locked-while-page-is- migrated.patch helps would be helpful as well.

you're absolutely right it's mm-put_and_wait_on_page_locked-while-page-is-migrated.patch . if i revert that one everything is fine again. Is an opensuse bugtracker entry really required or is this something to discuss upstream? Greets, Stefan Am 19.12.18 um 11:08 schrieb Michal Hocko:

On Wed 19-12-18 10:02:07, Stefan Priebe - Profihost AG wrote:

...

Dear Michal,

the reproducer is pretty easy.

Start two VMs from the same clone using qemu/kvm and enable ksm + maximaize scan pages to trigger it fast.

As already said, please open a bug. Double checking that disabling patches.fixes/mm-put_and_wait_on_page_locked-while-page-is-migrated.patch helps would be helpful as well.

Thanks!

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