From: Sasha Levin <sasha.levin@oracle.com>
To: "linux-mm@kvack.org" <linux-mm@kvack.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Konstantin Khlebnikov <koct9i@gmail.com>,
suresh.b.siddha@intel.com, Ingo Molnar <mingo@kernel.org>,
"H. Peter Anvin" <hpa@zytor.com>,
LKML <linux-kernel@vger.kernel.org>,
Dave Jones <davej@redhat.com>
Subject: Re: mm,x86: warning at arch/x86/mm/pat.c:781 untrack_pfn+0x65/0xb0()
Date: Sat, 07 Jun 2014 23:33:41 -0400 [thread overview]
Message-ID: <5393D995.8010805@oracle.com> (raw)
In-Reply-To: <5347E4FB.2090705@oracle.com>
On 04/11/2014 08:50 AM, Sasha Levin wrote:
> Hi all,
>
> While fuzzing with trinity inside a KVM tools guest running the latest -next
> kernel I've stumbled on the following:
Ping? Still happening (rarely on -next):
[ 5818.038245] WARNING: CPU: 4 PID: 22726 at arch/x86/mm/pat.c:781 untrack_pfn+0x65/0xb0()
[ 5818.044203] Modules linked in:
[ 5818.045172] CPU: 4 PID: 22726 Comm: trinity-c239 Tainted: G W 3.15.0-rc8-next-20140606-sasha-00021-ga9d3a0b-dirty #596
[ 5818.048317] 0000000000000009 ffff8800024d3be8 ffffffff9e50fe6b 0000000000000001
[ 5818.050516] 0000000000000000 ffff8800024d3c28 ffffffff9b15f96c ffff8800024d3c38
[ 5818.052567] ffff88000203f400 0000000000000000 ffff8800024d3d68 ffff8800024d3d68
[ 5818.053785] Call Trace:
[ 5818.054483] dump_stack (lib/dump_stack.c:52)
[ 5818.055586] warn_slowpath_common (kernel/panic.c:430)
[ 5818.056763] warn_slowpath_null (kernel/panic.c:465)
[ 5818.057789] untrack_pfn (arch/x86/mm/pat.c:781 (discriminator 3))
[ 5818.059412] unmap_single_vma (mm/memory.c:1327)
[ 5818.061530] ? pagevec_lru_move_fn (include/linux/pagevec.h:44 mm/swap.c:435)
[ 5818.063412] unmap_vmas (mm/memory.c:1377 (discriminator 1))
[ 5818.064610] unmap_region (mm/mmap.c:2363 (discriminator 3))
[ 5818.065453] ? validate_mm_rb (mm/mmap.c:404)
[ 5818.066422] ? vma_rb_erase (mm/mmap.c:449 include/linux/rbtree_augmented.h:219 include/linux/rbtree_augmented.h:227 mm/mmap.c:488)
[ 5818.067316] do_munmap (mm/mmap.c:3359 mm/mmap.c:2561)
[ 5818.068126] move_vma (mm/mremap.c:313)
[ 5818.069000] SyS_mremap (mm/mremap.c:446 mm/mremap.c:508 mm/mremap.c:477)
[ 5818.069839] tracesys (arch/x86/kernel/entry_64.S:542)
Thanks,
Sasha
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next prev parent reply other threads:[~2014-06-08 3:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-11 12:50 mm,x86: warning at arch/x86/mm/pat.c:781 untrack_pfn+0x65/0xb0() Sasha Levin
2014-06-08 3:33 ` Sasha Levin [this message]
2014-06-10 4:35 ` Hugh Dickins
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