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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] xen page fault
In the process of sorting out my ganglia setup, I faulted two xen's, one of which just happened to be on a serial line. The fault occured when I shutdown the xenU domains on 16 hosts. The two hosts that crashed are the two to which gmetad linked from a host outside the cluster. So I am guessing some funny business with multicast pkts on a xenU that did _not_ have IP_MULTICAST configured. In fact, I was rebooting to start a xenU that did have MULICAST configured. xen0 does not have MULTICAST configured either but it does have CONFIG_XEN_WRITABLE_PAGETABLES on. Have people run gmond on xenU as a data_source for gmetad? Here is the console output, and gdb disassembler.. device vif4.0 left promiscuous mode xen-br0: port 2(vif4.0) entering disabled state xen-br0: port 2(vif4.0) entering disabled state (XEN) CPU: 0 (XEN) EIP: 0808:[<fc507335>] (XEN) EFLAGS: 00013296 (XEN) eax: 00000000 ebx: 31ee2063 ecx: fc5fa680 edx: 00000001 (XEN) esi: fd8ae530 edi: 00031ee2 ebp: 00000003 esp: fc503bd8 (XEN) ds: 0810 es: 0810 fs: 0810 gs: 0810 ss: 0810 (XEN) Stack trace from ESP=fc503bd8: (XEN) 33320810 ff97d000 00000000 31ee2063 fd8ae530 370e0000 370e0001 [fc51b4ca] (XEN) 00000001 fc5fa680 00031ee2 00000003 00000000 00000000 fc5fa680 [fc509a60] (XEN) 00000001 fd460eb8 00000001 00000166 ff817000 fc5fa680 20000000 fd460ea0 (XEN) 00000387 57fe0000 57fe0001 [fc51b2a8] fd460ea0 00000000 00003286 fd997f30 (XEN) 00000000 00000000 fc5fa680 ffadd000 0003799a fd997f30 00000000 00000400 (XEN) ffadc000 fc5fa680 40000000 ffffffff fc5fa680 fd936670 c0000003 [fc517e58] (XEN) fd936670 00000000 fd936670 fc5fa6c8 fc5fa680 00000000 fffffffd [fc517ad5] (XEN) fc5fa680 fc5fa6c8 fffffffd [fc50e5a9] fc5fa70c fc5fa680 00000000 [fc505f21] (XEN) fc5fa680 00000000 fc5fa680 [fc504cab] fc5fa680 bfffe5f0 00000050 00004376 (XEN) 00004376 [fc50911d] 0000000c 00000000 00000010 fc5fa6c8 00000000 00000000 (XEN) 00000000 [fc5113d4] 0000000c 00000000 00000092 000013b3 ffffffea 000013b3 (XEN) 00000000 eca3e242 00000ef3 30000000 fc5ff124 fc5fe1ac 00000000 fc5f99c0 (XEN) 00000096 0001c05d 00000000 0001c05d 00000000 4092b4c0 00001b43 0073f597 (XEN) fc5ff124 fc5fe1ac 00000000 fc5f99c0 00000092 00000086 00371db6 00000000 (XEN) 00000096 0064cc7e 00000000 0064cc7e 00000000 4fadb55d 00004381 00000000 (XEN) fc5ff124 fc5fe1ac 00000000 fc5f99c0 00000096 00000001 fc5fe1ac 00000000 (XEN) fc5f99c0 00000082 00000000 4fadb55d 00004381 fc5fe1ac 00000096 00000000 (XEN) fc5f99c0 00000096 0000001b 00000000 00000096 fc5f99c0 fc5f99c0 fc5ff560 (XEN) [fc51a9ef] fc5f99c0 00000000 00000000 000006c0 fc56b400 0000001b ffa6b000 (XEN) [fc51a7e7] 0000001b [fc518de8] fc503e48 fc5fa680 00072239 00203092 0406015 (XEN) Call Trace from ESP=fc503bd8: [<fc51b4ca>] [<fc509a60>] [<fc51b2a8>] [<fc517e58>] [<fc517ad5>] [<fc50e5a9>] (XEN) [<fc505f21>] [<fc504cab>] [<fc50911d>] [<fc5113d4>] [<fc51a9ef>] [<fc51a7e7>] (XEN) [<fc518de8>] [<fc522b63>] [<fc51c4c3>] [<fc51a894>] [<fc51be3c>] [<fc525893>] **************************************** CPU0 FATAL PAGE FAULT [error_code=00000000] Faulting linear address might be 00000b65 Aieee! CPU0 is toast... **************************************** Reboot in five seconds... (gdb) disas 0xfc507335 Dump of assembler code for function gnttab_try_map: 0xfc507320 <gnttab_try_map+0>: push %ebp 0xfc507321 <gnttab_try_map+1>: xor %eax,%eax 0xfc507323 <gnttab_try_map+3>: push %edi 0xfc507324 <gnttab_try_map+4>: push %esi 0xfc507325 <gnttab_try_map+5>: push %ebx 0xfc507326 <gnttab_try_map+6>: sub $0xc,%esp 0xfc507329 <gnttab_try_map+9>: mov 0x20(%esp),%edx 0xfc50732d <gnttab_try_map+13>: mov 0x28(%esp),%edi 0xfc507331 <gnttab_try_map+17>: mov 0x2c(%esp),%ebp 0xfc507335 <gnttab_try_map+21>: mov 0xb64(%edx),%esi 0xfc50733b <gnttab_try_map+27>: test %esi,%esi 0xfc50733d <gnttab_try_map+29>: je 0xfc50738e <gnttab_try_map+110> 0xfc50733f <gnttab_try_map+31>: lock decb 0x8(%esi) 0xfc507343 <gnttab_try_map+35>: js 0xfc5279c7 <crash_domain_fixup3+788> 0xfc507349 <gnttab_try_map+41>: mov %edi,%ecx 0xfc50734b <gnttab_try_map+43>: and $0xff,%ecx 0xfc507351 <gnttab_try_map+49>: lea (%esi,%ecx,2),%edx 0xfc507354 <gnttab_try_map+52>: cmpw $0xffffffff,0xc(%edx) 0xfc507359 <gnttab_try_map+57>: lea 0xc(%edx),%ecx 0xfc50735c <gnttab_try_map+60>: je 0xfc507388 <gnttab_try_map+104> 0xfc50735e <gnttab_try_map+62>: mov 0x4(%esi),%ebx 0xfc507361 <gnttab_try_map+65>: jmp 0xfc507370 <gnttab_try_map+80> 0xfc507363 <gnttab_try_map+67>: nop (gdb) disas 0xfc51b4ca ... 0xfc51b4af <put_page_type+991>: mov 0x34(%esp),%ecx 0xfc51b4b3 <put_page_type+995>: add $0x2,%edx 0xfc51b4b6 <put_page_type+998>: mov %edx,0xc(%esp) 0xfc51b4ba <put_page_type+1002>: mov 0x28(%esp),%edx 0xfc51b4be <put_page_type+1006>: mov %ecx,0x4(%esp) 0xfc51b4c2 <put_page_type+1010>: mov %edx,(%esp) 0xfc51b4c5 <put_page_type+1013>: call 0xfc507320 <gnttab_try_map> (gdb) disas 0xfc509a60 0xfc509a40 <free_domheap_pages+224>: movb $0xff,0x46(%ebp) 0xfc509a44 <free_domheap_pages+228>: movb $0x1,0x44(%ebp) 0xfc509a48 <free_domheap_pages+232>: mov %ebx,0x4(%esp) 0xfc509a4c <free_domheap_pages+236>: mov 0x18(%esp),%edi 0xfc509a50 <free_domheap_pages+240>: movl $0x1,(%esp) 0xfc509a57 <free_domheap_pages+247>: mov %edi,0x8(%esp) 0xfc509a5b <free_domheap_pages+251>: call 0xfc5095c0 <free_heap_pages> ------------------------------------------------------- This SF.net email is sponsored by: IT Product Guide on ITManagersJournal Use IT products in your business? Tell us what you think of them. Give us Your Opinions, Get Free ThinkGeek Gift Certificates! Click to find out more http://productguide.itmanagersjournal.com/guidepromo.tmpl _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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