[Xen-devel] Xen 3.1.2 FATAL PAGE FAULT

["Christopher S. Aker" <caker@xxxxxxxxxxxx>]

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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