Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: [PATCH] hugetlbfs: fix hugetlb page migration/fault race causing SIGBUS | From | Mike Kravetz <> | Date | Thu, 8 Aug 2019 09:55:45 -0700 |
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On 8/8/19 12:47 AM, Michal Hocko wrote: > On Thu 08-08-19 09:46:07, Michal Hocko wrote: >> On Wed 07-08-19 17:05:33, Mike Kravetz wrote: >>> Li Wang discovered that LTP/move_page12 V2 sometimes triggers SIGBUS >>> in the kernel-v5.2.3 testing. This is caused by a race between hugetlb >>> page migration and page fault. <snip> >>> Reported-by: Li Wang <liwang@redhat.com> >>> Fixes: 290408d4a250 ("hugetlb: hugepage migration core") >>> Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> >>> Tested-by: Li Wang <liwang@redhat.com> >> >> Acked-by: Michal Hocko <mhocko@suse.com> > > Btw. is this worth marking for stable? I haven't seen it triggering > anywhere but artificial tests. On the other hand the patch is quite > straightforward so it shouldn't hurt in general.
I don't think this really is material for stable. I added the tag as the stable AI logic seems to pick up patches whether marked for stable or not. For example, here is one I explicitly said did not need to go to stable.
https://lkml.org/lkml/2019/6/1/165
Ironic to find that commit message in a stable backport.
I'm happy to drop the Fixes tag.
Andrew, can you drop the tag? Or would you like me to resend? -- Mike Kravetz
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