linux-kernel - [PATCH v3 0/2] mm/memory-failure: Poison read receives SIGKILL instead of SIGBUS issue

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Message-Id: <1564092101-3865-1-git-send-email-jane.chu@oracle.com>
Date:   Thu, 25 Jul 2019 16:01:39 -0600
From:   Jane Chu <jane.chu@...cle.com>
To:     n-horiguchi@...jp.nec.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Cc:     linux-nvdimm@...ts.01.org
Subject: [PATCH v3 0/2] mm/memory-failure: Poison read receives SIGKILL instead of SIGBUS issue 

Changes in v3:
 - move **tk cleanup to its own patch

Changes in v2:
 - move 'tk' allocations internal to add_to_kill(), suggested by Dan;
 - ran checkpatch.pl check, pointed out by Matthew;
 - Noaya pointed out that v1 would have missed the SIGKILL
   if "tk->addr == -EFAULT", since the code returns early.
   Incorporated Noaya's suggestion, also, skip VMAs where
   "tk->size_shift == 0" for zone device page, and deliver SIGBUS
   when "tk->size_shift != 0" so the payload is helpful;
 - added Suggested-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>

Jane Chu (2):
  mm/memory-failure.c clean up around tk pre-allocation
  mm/memory-failure: Poison read receives SIGKILL instead of SIGBUS if
    mmaped more than once

 mm/memory-failure.c | 62 ++++++++++++++++++++++-------------------------------
 1 file changed, 26 insertions(+), 36 deletions(-)

-- 
1.8.3.1