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[Xen-devel] Xen 3.3.0-rc4: FATAL PAGE FAULT

from [Christopher S. Aker] [Permanent Link][Original]
To: xen devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: [Xen-devel] Xen 3.3.0-rc4: FATAL PAGE FAULT
From: "Christopher S. Aker" <caker@xxxxxxxxxxxx>
Date: Wed, 27 Aug 2008 10:42:26 -0400
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I was hoping changes made in 3.3 inadvertently fixed our put_page_type/domain_relinquish_resources hypervisor crashes, but we just had a box crash with our old friend.
This bug is getting really annoying. What can we do to help debug this problem? 

(XEN) Pagetable walk from 00000000dfc27ffc:
(XEN)  L4[0x000] = 00000005ec8a6027 0000000000020839
(XEN)  L3[0x003] = 00000005eca56027 0000000000020689
(XEN)  L2[0x0fe] = 00000006168e5067 00000000000000fa
(XEN)  L1[0x027] = 80000005ed4b8061 000000000001fc27
(XEN) domain_crash_sync called from entry.S
(XEN) Domain 4 (vcpu#0) crashed on cpu#0:
(XEN) ----[ Xen-3.3.0-rc4-pre  x86_64  debug=n  Not tainted ]----
(XEN) CPU:    0
(XEN) RIP:    0061:[<00000000c048e84c>]
(XEN) RFLAGS: 0000000000210246   EM: 1   CONTEXT: pv guest
(XEN) rax: 0000000000000000   rbx: 00000000dfc2fb6c   rcx: 0000000000000001
(XEN) rdx: 0000000000000000   rsi: 0000000000007ff0   rdi: 00000000e17ffc80
(XEN) rbp: 00000000dfc2fb9c   rsp: 00000000dfc2800c   r8:  0000000000000000
(XEN) r9:  0000000000000000   r10: 0000000000000000   r11: 0000000000000000
(XEN) r12: 0000000000000000   r13: 0000000000000000   r14: 0000000000000000
(XEN) r15: 0000000000000000   cr0: 000000008005003b   cr4: 00000000000026b0
(XEN) cr3: 00000006091f1000   cr2: 00000000c048e84c
(XEN) ds: 007b   es: 007b   fs: 0000   gs: 0000   ss: 0069   cs: 0061
(XEN) Guest stack trace from esp=dfc2800c:
(XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 (XEN) 00000010 c048e84c 00010061 00210046 00000010 c048e84c 00010061 00210046 
(XEN) ----[ Xen-3.3.0-rc4-pre  x86_64  debug=n  Not tainted ]----
(XEN) CPU:    7
(XEN) RIP:    e008:[<ffff828c801417b5>] put_page_type+0x15/0xf0
(XEN) RFLAGS: 0000000000210296   CONTEXT: hypervisor
(XEN) rax: 00001ae8e0eae4e0   rbx: ffffa42719259e18   rcx: 0000000080000000
(XEN) rdx: 000000d747075727   rsi: 00000000005eca56   rdi: ffffa42719259e18
(XEN) rbp: 0000000000000001   rsp: ffff8300cee1fc28   r8:  0000000000000000
(XEN) r9:  0000000000305000   r10: 0000000000000000   r11: 0000000000000000
(XEN) r12: ffffa42719259e18   r13: 00000000005eca56   r14: ffff82840ecf9d70
(XEN) r15: ffff8300ceffc098   cr0: 000000008005003b   cr4: 00000000000026b0
(XEN) cr3: 000000062fdea000   cr2: ffffa42719259e30
(XEN) ds: 007b   es: 007b   fs: 0000   gs: 0033   ss: 0000   cs: e008
(XEN) Xen stack trace from rsp=ffff8300cee1fc28:
(XEN) ffffa42719259e18 0000000000000001 ffff8300ceffc080 ffff828c80141341 (XEN) ffff8305eca56008 ffff828c801415cb 0000000044000001 0000000044000000 (XEN) ffff82840ecf9d70 ffff8300ceffc080 ffff82840ecf59f0 ffff828c80141817 (XEN) ffff82840ecf9d70 00000000000001fd 00000000005ec8a6 ffff828c80141b31 (XEN) ffff8305ec8a6018 ffff828c8014165e 0000000060000001 0000000060000000 (XEN) ffff82840ecf59f0 ffff8300ceffc080 0000000080000000 ffff828c80141817 (XEN) ffff82840ecf59f0 ffff82840ecf59f0 ffff8300ceffd930 ffff828c80135d64 (XEN) ffff82840f3b4a98 ffff8300ceffc098 0000000000000000 ffff8300ceffc080 (XEN) ffff8300cee1fda8 0000000000000000 0000000000000000 ffff828c80136226 (XEN) ffff8300ceffc080 0000000000000000 0000000000000000 ffff828c80105acd (XEN) ffff8300cf026080 ffff8300cfdec080 ffff828c801229de fffffffffffffff3 (XEN) 00000000b4cfc508 ffff828c801045aa 0000000000000007 ffff8300cee1fde8 (XEN) 0000000500000002 083ae6d4b7b10004 0837dfc401cfc538 b7dd4c50b7b17604 (XEN) b7a62d7400000001 00000001b7a69d84 080facafb4cfc568 081361e0081cf598 (XEN) 080797e7b5e8bb54 00000000b5e8bb70 b7dcf02c00000060 b5e9716c00000000 (XEN) 0805946cb4cfc588 b7dcf02cb5e9716c b7dd26a000000000 00000002b3cbdd9c (XEN) a5dba1eea5dba1ee 0000001f00000000 ffff828c8020d100 ffff828c8011838b (XEN) 0000000000000000 0000000000000007 ffff8300cf0260b0 ffff828c801ff200 (XEN) 00043c56ecbcaa88 0000000000200296 0000000000000000 0000000000200296 (XEN) ffff8300cf0260b0 ffff8300cfd92080 ffff828c8020d200 ffff828c8012f0d2 
(XEN) Xen call trace:
(XEN)    [<ffff828c801417b5>] put_page_type+0x15/0xf0
(XEN)    [<ffff828c80141341>] put_page_from_l2e+0x31/0x50
(XEN)    [<ffff828c801415cb>] free_page_type+0x26b/0x440
(XEN)    [<ffff828c80141817>] put_page_type+0x77/0xf0
(XEN)    [<ffff828c80141b31>] put_page_from_l3e+0x31/0x50
(XEN)    [<ffff828c8014165e>] free_page_type+0x2fe/0x440
(XEN)    [<ffff828c80141817>] put_page_type+0x77/0xf0
(XEN)    [<ffff828c80135d64>] relinquish_memory+0xb4/0x2a0
(XEN)    [<ffff828c80136226>] domain_relinquish_resources+0x116/0x1f0
(XEN)    [<ffff828c80105acd>] domain_kill+0x7d/0x160
(XEN)    [<ffff828c801229de>] ns16550_tx_empty+0xe/0x20
(XEN)    [<ffff828c801045aa>] do_domctl+0x60a/0xc90
(XEN)    [<ffff828c8011838b>] add_entry+0xdb/0x110
(XEN)    [<ffff828c8012f0d2>] reprogram_timer+0x22/0x90
(XEN)    [<ffff828c801184b5>] timer_softirq_action+0xf5/0x130
(XEN)    [<ffff828c801b5363>] compat_hypercall+0x83/0x90
(XEN)
(XEN) Pagetable walk from ffffa42719259e30:
(XEN)  L4[0x148] = 0000000000000000 ffffffffffffffff
(XEN)
(XEN) ****************************************
(XEN) Panic on CPU 7:
(XEN) FATAL PAGE FAULT
(XEN) [error_code=0000]
(XEN) Faulting linear address: ffffa42719259e30
(XEN) ****************************************
(XEN)
(XEN) Reboot in five seconds...

-Chris

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