On 3 September 2017 at 12:43, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > This is: > > bh = head = page_buffers(page); > > Which looks odd and like some sort of VM/writeback change might > have triggered that we get a page without buffers, despite always > creating buffers in iomap_begin/end and page_mkwrite. > > Ccing linux-mm if anything odd happen in that area recently. > > Can you tell anything about the workload you are running? > On XFS partition stored launched KVM VM images, + home partition with Google Chrome profiles. Seems the bug triggering by high memory consumption and using swap which two times larger than system memory. I saw that it happens when swap has reached size of system memory. -- Best Regards, Mike Gavrilov. -- To unsubscribe from this list: send the line "unsubscribe linux-xfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html