On Mon, 15 Aug 2022 18:46:40 +0300 Yishai Hadas <yishaih@xxxxxxxxxx> wrote: > On 15/06/2022 17:02, Alex Williamson wrote: > > On Wed, 15 Jun 2022 13:52:10 +0300 > > Yishai Hadas <yishaih@xxxxxxxxxx> wrote: > > > >> Adding some extra relevant people from the MM area. > >> > >> On 15/06/2022 13:43, Yishai Hadas wrote: > >>> Hi All, > >>> > >>> Any idea what could cause the below break in 5.19 ? we run QEMU and > >>> immediately the machine is stuck. > >>> > >>> Once I run, echo l > /proc/sysrq-trigger could see the below task > >>> which seems to be stuck.. > >>> > >>> This basic flow worked fine in 5.18. > > Spent Friday bisecting this and posted this fix: > > > > https://lore.kernel.org/all/165490039431.944052.12458624139225785964.stgit@omen/ > > > > I expect you're hotting the same. Thanks, > > > > Alex > > Alex, > > It seems that we got the same bug again in V6.0 RC1 .. > > The below code [1] from commit [2], put back the 'is_zero_pfn()' under > the !(..) and seems buggy. > > I would expect the below fix for that [3]. > > Alex Sierra, > > Can you please review the below suggested fix for your patch and send a > patch for RC2 accordingly ? > https://lore.kernel.org/all/166015037385.760108.16881097713975517242.stgit@omen/ It's in the mm tree, hopefully it'll get pushed in an early rc. Thanks, Alex
