On Mon, Apr 10, 2017 at 08:10:06PM +0800, zhong jiang wrote:
> On 2017/4/10 16:56, Mel Gorman wrote:
> > On Sat, Apr 08, 2017 at 09:39:42PM +0800, zhong jiang wrote:
> >> when runing the stabile docker cases in the vm. The following issue will come up.
> >>
> >> #40 [ffff8801b57ffb30] async_page_fault at ffffffff8165c9f8
> >> [exception RIP: down_read_trylock+5]
> >> RIP: ffffffff810aca65 RSP: ffff8801b57ffbe8 RFLAGS: 00010202
> >> RAX: 0000000000000000 RBX: ffff88018ae858c1 RCX: 0000000000000000
> >> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000008
> >> RBP: ffff8801b57ffc10 R8: ffffea0006903de0 R9: ffff8800b3c61810
> >> R10: 00000000000022cb R11: 0000000000000000 R12: ffff88018ae858c0
> >> R13: ffffea0006903dc0 R14: 0000000000000008 R15: ffffea0006903dc0
> >> ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000
> > Post the full report including the kernel version and state whether any
> > additional patches to 3.10 are applied.
> >
> Hi, Mel
>
> Our kernel from RHEL 7.2, Addtional patches all from upstream -- include Bugfix and CVE.
>
> Commit 624483f3ea8 ("mm: rmap: fix use-after-free in __put_anon_vma") exclude in
> the RHEL 7.2. it looks seems to the issue. but I don't know how it triggered.
> or it is not the correct fix. Any suggestion? Thanks
>
I'm afraid you'll need to bring it up with RHEL support as it contains
a number of backported patches from them that cannot be meaningfully
evaluated outside of RedHat and they may have additional questions on the
patches applied on top.
--
Mel Gorman
SUSE Labs
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