Re: [Xen-devel] Xen 3.1.2 FATAL PAGE FAULT

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

Noone has reported this crash before, and it doesn't look like one that
would fortuitously have become fixed in the 3.1 branch. The backtrace may be
more useful if you repro with a debug build of Xen. It also might be worth
trying to repro with 3.2.0, if it is feasible to try.

 -- Keir

On 25/1/08 14:41, "Christopher S. Aker" <caker@xxxxxxxxxxxx> wrote:

> Xen 3.1.2 x86_64, and x86pae domains.  I've hit this twice on as many
> boxes in the past week...
> 
> ----[ Xen-3.1.2  x86_64  debug=n  Not tainted ]----
> CPU:    0
> RIP:    e008:[<ffff828c8012efe5>] put_page_from_l1e+0x85/0x140
> RFLAGS: 0000000000210203   CONTEXT: hypervisor
> rax: 0000000000000001   rbx: ffff828401c862d8   rcx: 0000000000000002
> rdx: 0000000000000000   rsi: ffff8300cfc50080   rdi: 0000000000000000
> rbp: 00000000000001e1   rsp: ffff828c801efcb8   r8:  0000000000000000
> r9:  00000000d6273dcc   r10: ffff828c801c64c0   r11: 0000000000000000
> r12: ffff8300cfc50080   r13: 00000000004cc5aa   r14: 00000004bc040000
> r15: ffff82840bb95bd0   cr0: 000000008005003b   cr4: 00000000000026b0
> cr3: 000000060d0a8000   cr2: 0000000000001161
> ds: 007b   es: 007b   fs: 0000   gs: 0000   ss: 0000   cs: e008
> Xen stack trace from rsp=ffff828c801efcb8:
>     0000000000000000 ffff8304bc040100 00000000000001e1 ffff828c8012f270
>     0000000020000001 0000000020000000 ffff82840bd60a00 00000000004cc5aa
>     ffff82840bfee290 ffff828c8012f531 ffff82840bd60a00 00000000000001bf
>     ffff8300cfc50080 ffff828c8012f7c1 ffff8304cc5aadf8 ffff828c8012f30b
>     0000000040000001 0000000040000000 ffff82840bfee290 ffff8300cfc50080
>     ffff82840bb95bd0 ffff828c8012f531 ffff82840bfee290 00000000000001fe
>     00000000004b08b2 ffff828c8012f751 ffff8304b08b2010 ffff828c8012f390
>     0000000060000001 0000000060000000 ffff82840bb95bd0 ffff8300cf3ec080
>     0000000000000000 ffff828c8012f531 0000000000000004 ffff8300cfc50080
>     0000000000000001 ffff828c80133fe5 0000000000241443 ffff828c801c64c0
>     00007ff0ceeb0080 00000000ffffffea 0000000100000000 00000000004b08b2
>     0000000000000000 0000008000000000 0000000100000004 00000000004b08b2
>     0000008000000fd8 ffff8300cfc50080 0000000000000000 00000000801059a8
>     ffff830000000006 0000008000000018 0000000000000000 0000000000000001
>     0000000000000001 00000000000000aa 0000000000000001 ffff828c8017d79a
>     00000000d62739d0 ffff828c801efed8 ffff828c801efee4 00007ff0801c6028
>     0000000000000000 ffff828c801eff28 00000000d6273dc4 0000008000000000
>     004b08b200000004 ffff828ce4e4801c 0000000300000000 ffff8300cf3ec080
>     00000000d6273dcc 0000000000000000 0000000000000000 0000000000000000
>     0000000000000000 ffff828c801850a7 0000000000000000 0000000000000000
> Xen call trace:
>     [<ffff828c8012efe5>] put_page_from_l1e+0x85/0x140
>     [<ffff828c8012f270>] free_page_type+0x1d0/0x420
>     [<ffff828c8012f531>] put_page_type+0x71/0xe0
>     [<ffff828c8012f7c1>] put_page_from_l2e+0x31/0x70
>     [<ffff828c8012f30b>] free_page_type+0x26b/0x420
>     [<ffff828c8012f531>] put_page_type+0x71/0xe0
>     [<ffff828c8012f751>] put_page_from_l3e+0x31/0x70
>     [<ffff828c8012f390>] free_page_type+0x2f0/0x420
>     [<ffff828c8012f531>] put_page_type+0x71/0xe0
>     [<ffff828c80133fe5>] do_mmuext_op+0x6c5/0xd60
>     [<ffff828c8017d79a>] compat_mmuext_op+0x34a/0x4f0
>     [<ffff828c801850a7>] compat_hypercall+0x57/0x60
> 
> Pagetable walk from 0000000000001161:
>   L4[0x000] = 00000004acd23027 00000000000006db
>   L3[0x000] = 0000000000000000 ffffffffffffffff
> 
> ****************************************
> Panic on CPU 0:
> FATAL PAGE FAULT
> [error_code=0000]
> Faulting linear address: 0000000000001161
> ****************************************
> 
> Was this something that was already fixed?  Thoughts?
> 
> Thanks,
> -Chris
> 
> 
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> http://lists.xensource.com/xen-devel



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