Messages in this thread | | | Date | Tue, 15 Jan 2008 18:36:58 +0100 | From | Andi Kleen <> | Subject | Re: unify pagetable accessors patch causes double fault II |
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On Tue, Jan 15, 2008 at 02:53:17PM +0100, Ingo Molnar wrote: > > * Jeremy Fitzhardinge <jeremy@goop.org> wrote: > > > Can you try this out? It applies after "x86: move all asm/pgtable > > constants into one place". > > and here's the patch > > Subject: Re: unify pagetable accessors patch causes double fault II > From: Jeremy Fitzhardinge <jeremy@goop.org>
The patch does not fix the problem here. When I boot plain git-x86 upto commit 67db3027d691ff8049d19be7bc440eca0e5826d7 on my 6GB machine I still get an recursive oops on entering user space.
The only difference to earlier kernels seems to be that the problem happens a little latter (in stty, not boot), but that might be just coincidence.
Config http://halobates.de/config32
stty[1151]: segfault at b7f0ce98 ip b7e03b7a sp bfc31f9c error 7 Eeek! page_mapcount(page) went negative! (-1) page pfn = bfc12 page->flags = 80000014 page->count = 0 page->mapping = 00000000 vma->vm_ops = nfs_file_vm_ops+0x0/0x18 vma->vm_ops->nopage = 0x0 vma->vm_ops->fault = filemap_fault+0x0/0x34e vma->vm_file->f_op->mmap = nfs_file_mmap+0x0/0x61 ------------[ cut here ]------------ kernel BUG at /home/lsrc/git-arch-x86/linux-2.6-x86/mm/rmap.c:631! invalid opcode: 0000 [#1] SMP
-Andi
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