[Xen-devel] Xen 3.2.0 crash: Pagetable walk

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

Can someone shed some light on what just happened here, and if this is a 
known/already fixed issue?
(XEN) Pagetable walk from 00000000c13a7f30:
(XEN)  L4[0x000] = 0000000395f1b027 0000000000015dc6
(XEN) ----[ Xen-3.2.0  x86_64  debug=y  Not tainted ]----
(XEN) CPU:    7
(XEN) RIP:    e008:[<ffff828c801b3506>] show_page_walk+0xd1/0x1dc
(XEN) RFLAGS: 0000000000010206   CONTEXT: hypervisor
(XEN) rax: 000a5d855a211000   rbx: 702a5d855a2119d4   rcx: ffff830000000000
(XEN) rdx: 000000000000000a   rsi: 0000000000000003   rdi: ffff828c8024dc8f
(XEN) rbp: ffff8300ceeeff10   rsp: ffff8300ceeefee0   r8:  0000000000000004
(XEN) r9:  0000000000000004   r10: ffff8300ceeefce5   r11: 0000000000000010
(XEN) r12: 000000a5d855a211   r13: 00000000c13a7f30   r14: ffff828000000000
(XEN) r15: 000ffffffffff000   cr0: 000000008005003b   cr4: 00000000000026b0
(XEN) cr3: 00000003a3ceb000   cr2: ffff87aec2ad1088
(XEN) ds: 007b   es: 007b   fs: 0000   gs: 0000   ss: 0000   cs: e008
(XEN) Xen stack trace from rsp=ffff8300ceeefee0:
(XEN)    00000000c13a7f2c ffff8300cf36c100 0000000000000000 
0000000000000000
(XEN)    0000000000000000 0000000000000000 00007cff311100b7 
ffff828c801bc03c
(XEN)    ffff828c801bbe5f 0000000000000000 0000000000000000 
0000000000000000
(XEN)    0000000000000000 00000000c13a7fac 00000000deadbeef 
0000000000000000
(XEN)    0000000000000000 0000000000000000 0000000000000000 
0000000000000000
(XEN)    00000000deadbeef 00000000deadbeef 00000000deadbeef 
00000000c1390ab0
(XEN)    0000000e00000010 00000000c0101347 0000000000000061 
0000000000010246
(XEN)    00000000c13a7f38 0000000000000069 5555555555555555 
5555555555555555
(XEN)    5555555555555555 5555555555555555 5555555500000007 
ffff8300cf36c100
(XEN) Xen call trace:
(XEN)    [<ffff828c801b3506>] show_page_walk+0xd1/0x1dc
(XEN)    [<ffff828c801bc03c>] compat_crash_page_fault+0x9/0xbe1
(XEN)
(XEN) Pagetable walk from ffff87aec2ad1088:
(XEN)  L4[0x10f] = 0000000000000000 ffffffffffffffff
(XEN)
(XEN) ****************************************
(XEN) Panic on CPU 7:
(XEN) FATAL PAGE FAULT
(XEN) [error_code=0000]
(XEN) Faulting linear address: ffff87aec2ad1088
(XEN) ****************************************

Thanks,
-Chris


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