https://bugzilla.kernel.org/show_bug.cgi?id=54061 --- Comment #3 from Anonymous Emailer <anonymous@xxxxxxxxxxxxxxxxxxxx> 2013-02-25 08:26:26 --- Reply-To: xiaoguangrong@xxxxxxxxxxxxxxxxxx On 02/20/2013 04:06 PM, bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=54061 > > > > > > --- Comment #2 from Jay Ren <yongjie.ren@xxxxxxxxx> 2013-02-20 08:06:16 --- > Marcleo, > > yes, after reverting that commit "caf6900f2d8", live-migration can work fine. > Sorry for the wrong patch and the bug is: the fast page fault path can make large-spte writeable without probably set dirty bitmap for all small pages. Two ways to fix these: 1): covert the large-spte to small sptes and wirte-protect them, then no readonly large-spte exists. 2): only allow fast page fault to fix #PF on small spte. Seems the first way is better because the second way can cause useless page table waking. -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
