On Thu, Jul 27, 2023 at 4:27 AM Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: > > On Fri, Jul 21, 2023 at 11:49:04AM +0100, Daniel Dao wrote: > > We do not have a reproducer yet, but we now have more debugging data > > which hopefully > > should help narrow this down. Details as followed: > > > > 1. Kernel NULL pointer deferencences in __filemap_get_folio > > > > This happened on a few different hosts, with a few different repeated addresses. > > The addresses are 0000000000000036, 0000000000000076, > > 00000000000000f6. This looks > > like the xarray is corrupted and we were trying to do some work on a > > sibling entry. > > I think I have a fix for this one. Please try the attached. For some reason I do not see the attached patch. Can you resend it, or is it the same one as in https://bugzilla.kernel.org/show_bug.cgi?id=216646#c31 ?
