On Fri, Oct 17, 2008 at 4:39 PM, Mike Snitzer <snitzer@xxxxxxxxx> wrote: > On Fri, Oct 17, 2008 at 4:04 PM, Dave Anderson <anderson@xxxxxxxxxx> wrote: >> >> Mike, >> >> Apply this patch to 4.0-7.4 and run it on your live system. >> >> It works with the sample vmcore you sent me, and it should also alleviate >> many of the errors that I suggested might be due to the underlying >> shifting sands of your live system. >> >> I don't know why this is the first report of this, nor why I've never >> seen this before? The problem has to do with using invalid entries >> in the kmem_cache.nodelists[MAXNUMNODES] array of kmem_list3 data >> structures. To date, the unused entries have typically been NULL >> for non-existent memory nodes, but not so with your kernel. >> >> Let me know how it works for you. > > Hi Dave, > > I've tested your patch and crash no longer segfaults. As for the > various errors from "shifting sands"; I still see quite a few "free > list: bad slab pointer:" and "partial list: bad slab pointer:" errors > for my kmem_caches on both the live and vmcore crash sessions. > > Are you saying I shouldn't see many of these errors any more? Or are > they still to be expected based on your experience when interacting > with my vmcore? OK, I was mistaken... I thought I was using your patched crash but I was using a stale crash that I had modified to not segfault. Anyway, in the end when I use your patched crash: Things look very nice! thanks, Mike -- Crash-utility mailing list Crash-utility@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/crash-utility
