From: Dave Jones <davej@redhat.com>
To: Arnaud Fontaine <arnaud@andesi.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: error: Eeek! page_mapcount(page) went negative! (-1) with different process and kernels
Date: Tue, 16 Oct 2007 14:35:10 -0400 [thread overview]
Message-ID: <20071016183510.GB25480@redhat.com> (raw)
In-Reply-To: <sa564176ksz.fsf@Toushirou.duckcorp.org>
On Tue, Oct 16, 2007 at 07:17:32PM +0200, Arnaud Fontaine wrote:
> Hello,
>
> We have often the following error from the kernel:
>
> sshd[1551] trap invalid opcode rip:2aeacc0677a0 rsp:7fffe0c7e688 error:0
> Eeek! page_mapcount(page) went negative! (-1)
> page pfn = 7f7a8
> page->flags = 400000000001002c
> page->count = 1
> page->mapping = ffff810056170550
> vma->vm_ops = 0xffffffff80667ba0
> vma->vm_ops->nopage = _stext+0x7fdf7000/0x20
> vma->vm_ops->fault = filemap_fault+0x0/0x450
> vma->vm_file->f_op->mmap = generic_file_mmap+0x0/0x50
> ....
>
> We have tested with different kernel (2.6.23.1 and 2.6.22) and the same
> error happens with different process. Any idea for knowing what could
> cause this error?
Many of these that I've seen have turned out to be a hardware problem.
Try running memtest86+ on that machine for a while.
It doesn't catch all problems, but it will highlight more common memory faults.
Dave
--
http://www.codemonkey.org.uk
next prev parent reply other threads:[~2007-10-16 19:11 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-10-16 17:17 error: Eeek! page_mapcount(page) went negative! (-1) with different process and kernels Arnaud Fontaine
2007-10-16 18:35 ` Dave Jones [this message]
2007-10-16 23:03 ` Arnaud Fontaine
2007-10-17 2:36 ` Dave Jones
2007-10-18 11:25 ` Goswin von Brederlow
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