Messages in this thread Patch in this message | | | Date | Thu, 26 Jul 2018 09:40:20 -0700 (PDT) | From | Hugh Dickins <> | Subject | Re: kernel BUG at mm/shmem.c:LINE! |
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On Thu, 26 Jul 2018, Matthew Wilcox wrote: > On Wed, Jul 25, 2018 at 11:53:15PM -0700, Hugh Dickins wrote: > > and fixing the bug differently ;-) But many thanks for spotting it!
I thought you might :)
> > I'll look into the next bug you reported ...
No need: that idea now works a lot better when I use the initialized "start", instead of the uninitialized "index".
Hugh
--- mmotm/mm/khugepaged.c 2018-07-20 17:54:41.978805312 -0700 +++ linux/mm/khugepaged.c 2018-07-26 09:20:22.416949014 -0700 @@ -1352,6 +1352,7 @@ static void collapse_shmem(struct mm_str goto out; } while (1); + xas_set(&xas, start); for (index = start; index < end; index++) { struct page *page = xas_next(&xas);
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