On Mon, Aug 19, 2019 at 02:22:59PM +1000, Dave Chinner wrote: > That implies a kmalloc heap issue. > > Oh, is memory poisoning or something that modifies the alignment of > slabs turned on? > > i.e. 4k/8k allocations from the kmalloc heap slabs might not be > appropriately aligned for IO, similar to the problems we have with > the xen blk driver? That is what I suspect, and as you can see in the attached config I usually run with slab debuggig on.
