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Re: [Xen-devel] dom0 - BUG: unable to handle kernel paging req

To: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] dom0 - BUG: unable to handle kernel paging request
From: "Christopher S. Aker" <caker@xxxxxxxxxxxx>
Date: Tue, 4 Jan 2011 16:59:13 -0500
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, xen devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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On Jan 4, 2011, at 3:34 PM, Ian Campbell wrote:
> On Tue, 2011-01-04 at 20:30 +0000, Christopher S. Aker wrote:
>> No symbol table is loaded.  Use the "file" command. 
> I think you need to enable CONFIG_DEBUG_INFO for this to work.

I rebuilt with CONFIG_DEBUG_INFO, and surprisingly it appears valid at the same 

# gdb vmlinux
GNU gdb (GDB) 7.0-ubuntu
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i486-linux-gnu".
For bug reporting instructions, please see:
Reading symbols from /build/xen/dom0/pv_ops/
(gdb) list *0xc1022781
0xc1022781 is in vmalloc_sync_all 
429     #define pud_page(pud)           pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
431     /* Find an entry in the second-level page table.. */
432     static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
433     {
434             return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address);
435     }
437     static inline int pud_large(pud_t pud)
438     {
(gdb) quit


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