"Michael S. Tsirkin" <mst@xxxxxxxxxx> writes: > On Fri, Dec 01, 2017 at 11:31:08PM +1100, Michael Ellerman wrote: >> "Michael S. Tsirkin" <mst@xxxxxxxxxx> writes: >> >> > fill_balloon doing memory allocations under balloon_lock >> > can cause a deadlock when leak_balloon is called from >> > virtballoon_oom_notify and tries to take same lock. ... >> >> >> Somehow this commit seems to be killing powerpc guests. ... > > Thanks for the report! > A fix was just posted: > virtio_balloon: fix increment of vb->num_pfns in fill_balloon() > > Would appreciate testing. Yep that fixes it. Thanks. Tested-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> cheers -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>