On Fri, Sep 11, 2020 at 2:34 PM Roman Gushchin <guro@xxxxxx> wrote: > [snip] > > > > Also have you taken a look at [1]? I am still trying to figure out how > > that is possible. > > > > [1] https://lore.kernel.org/lkml/20200901075321.GL4299@shao2-debian/ > > Hm, yeah, it's complicated. At the very first glance it looks like that the > obj_cgroups vector is placed onto the very same page it describes, or at least > it shares the kmem_cache with it, with some bad consequences. Could be something > SLAB-specific, newer saw anything like that with SLUB. > Or maybe it's completely unrelated and has been attributed to this commit > by mistake. > > I've spent several hours running the provided test in a loop, but wasn't > lucky enough to trigger it. Did you try? > Yeah same, no success in reproducing it.
