Pavel Tatashin fc36def997 mm: teach dump_page() to correctly output poisoned struct pages
If struct page is poisoned, and uninitialized access is detected via
PF_POISONED_CHECK(page) dump_page() is called to output the page.  But,
the dump_page() itself accesses struct page to determine how to print
it, and therefore gets into a recursive loop.

For example:

  dump_page()
   __dump_page()
    PageSlab(page)
     PF_POISONED_CHECK(page)
      VM_BUG_ON_PGFLAGS(PagePoisoned(page), page)
       dump_page() recursion loop.

Link: http://lkml.kernel.org/r/20180702180536.2552-1-pasha.tatashin@oracle.com
Fixes: f165b378bbdf ("mm: uninitialized struct page poisoning sanity checking")
Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-07-03 17:32:19 -07:00
..
2018-06-07 17:34:36 -07:00
2018-06-08 17:21:52 -07:00
2018-06-05 13:24:20 -07:00
2018-06-08 17:21:52 -07:00
2017-11-15 18:21:05 -08:00
2018-04-11 10:28:39 -07:00
2018-06-07 17:34:35 -07:00
2018-06-15 07:55:25 +09:00
2018-06-07 17:34:35 -07:00
2018-04-11 10:28:32 -07:00
2018-06-07 17:34:36 -07:00
2018-06-07 17:34:36 -07:00
2018-06-15 07:55:25 +09:00
2018-06-07 17:34:36 -07:00
2018-04-20 17:18:35 -07:00
2018-04-27 17:13:20 -06:00
2018-06-15 07:55:25 +09:00
2018-06-12 16:19:22 -07:00
2018-04-11 10:28:39 -07:00
2018-06-07 17:34:36 -07:00
2018-04-11 10:28:39 -07:00
2018-05-11 17:28:45 -07:00
2018-02-06 18:32:48 -08:00
2018-06-15 07:55:25 +09:00