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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] error in xen/arch/x86/mm.c:get_page during migration
On Thu, Feb 21, Jan Beulich wrote: > What you could do to get a better understanding of when this > happens is to add a WARN_ON() alongside the printk() (perhaps > such that it triggers only once for each of the two different > cases), and then let us look at the call trace. It did not happen with xl. Here is the output while doing xm migrate: (XEN) HVM2 restore: VMCE_VCPU 0 (XEN) HVM2 restore: VMCE_VCPU 1 (XEN) HVM2 restore: TSC_ADJUST 0 (XEN) HVM2 restore: TSC_ADJUST 1 (XEN) mm.c:1983:d0 Error pfn 4112c5: rd=ffff83036ffef000, od=0000000000000000, caf=180000000000000, taf=7400000000000001 (XEN) Xen WARN at mm.c:1986 (XEN) ----[ Xen-4.3.26579-20130221.171413 x86_64 debug=y Not tainted ]---- (XEN) CPU: 20 (XEN) RIP: e008:[<ffff82c4c0170fb2>] get_page+0xfb/0x151 (XEN) RFLAGS: 0000000000010246 CONTEXT: hypervisor (XEN) rax: 7400000000000001 rbx: 7400000000000001 rcx: 0000000000000000 (XEN) rdx: 7400000000000001 rsi: 000000000000000a rdi: ffff82c4c0280748 (XEN) rbp: ffff83036d5f7958 rsp: ffff83036d5f7908 r8: 0000000000000014 (XEN) r9: 0000000000000004 r10: 0000000000000004 r11: 0000000000000001 (XEN) r12: 0180000000000000 r13: 0000000000000000 r14: ffff83036ffef000 (XEN) r15: ffff82e0082258a0 cr0: 000000008005003b cr4: 00000000000026f0 (XEN) cr3: 000000065e78f000 cr2: ffff8805ad260040 (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: e010 cs: e008 (XEN) Xen stack trace from rsp=ffff83036d5f7908: (XEN) 0000000000000000 0180000000000000 7400000000000001 ffff82c4c01e1726 (XEN) 00000000004112c5 ffff82e0082258a0 ffff83036d5f79fc ffff83036d5f799c (XEN) ffff830232aa49e0 ffff830232aa49e0 ffff83036d5f79c8 ffff82c4c01e1d87 (XEN) ffff830300000000 0000000000000086 000000026d5f7a04 00000000000190c5 (XEN) ffff830402126000 ffffffff01000086 000000076d5f7bc0 0000000000000000 (XEN) ffff830402126000 ffff83040225dc60 00000000000190c5 ffff83036d5f7ba0 (XEN) ffff83036d5f7a28 ffff82c4c01098ae ffff83036d5f7a98 ffff83036d5f7ba0 (XEN) ffff83036d5f7ab8 00000000000f03f8 000000006d5f7a08 0000000000000000 (XEN) 0000000000000240 ffff83040225dc60 0000000000000000 ffff83036d5f7ba0 (XEN) ffff83036d5f7ae8 ffff82c4c0109e55 ffff830402296200 0000000000000086 (XEN) 0000018300000009 00000000000000fd ffff83036d5f7bb0 000082e000000000 (XEN) ffff830402126000 ffff830402203c58 00000000002337b6 ffff830402296200 (XEN) 0000000000000000 ffff830402296200 ffff830402296200 000002406d5f7ba8 (XEN) ffff830300000000 ffff83036d5f7bb0 000000006d5f7b68 0000000000000000 (XEN) ffff83036d5ce000 0000000000000000 0000000000000000 ffff830402126000 (XEN) ffff83036d5f7c28 ffff82c4c010bef0 ffff83036d5f7bc4 ffff83036d5f7bc0 (XEN) ffff830300000001 0000000000000096 ffff83036d5f7bec ffff82c4c0319820 (XEN) ffff83036d5f0000 ffff83036d5f0000 ffff83036d5f0000 ffff83036d5f0000 (XEN) ffff83036d5f0000 ffff83036d5f7bc8 ffff83036d5f0000 0000000000000001 (XEN) ffffc90010283a40 0000000000000002 ffff83036d5f7bd8 ffff82c4c0125aa4 (XEN) Xen call trace: (XEN) [<ffff82c4c0170fb2>] get_page+0xfb/0x151 (XEN) [<ffff82c4c01e1d87>] get_page_from_gfn_p2m+0x17e/0x284 (XEN) [<ffff82c4c01098ae>] __get_paged_frame+0x5d/0x170 (XEN) [<ffff82c4c0109e55>] __acquire_grant_for_copy+0x494/0x6ae (XEN) [<ffff82c4c010bef0>] gnttab_copy+0x53b/0x843 (XEN) [<ffff82c4c010e3b8>] do_grant_table_op+0x11c5/0x1b82 (XEN) [<ffff82c4c011502f>] do_multicall+0x227/0x444 (XEN) [<ffff82c4c0227f0b>] syscall_enter+0xeb/0x145 (XEN) (XEN) mm.c:1983:d0 Error pfn 41144d: rd=ffff83036ffef000, od=0000000000000000, caf=180000000000000, taf=7400000000000001 (XEN) mm.c:1983:d0 Error pfn 4116b0: rd=ffff83036ffef000, od=0000000000000000, caf=180000000000000, taf=7400000000000001 (XEN) irq.c:375: Dom2 callback via changed to Direct Vector 0xf3 (XEN) HVM2 save: CPU ... (XEN) HVM3 restore: VMCE_VCPU 0 (XEN) HVM3 restore: VMCE_VCPU 1 (XEN) HVM3 restore: TSC_ADJUST 0 (XEN) HVM3 restore: TSC_ADJUST 1 (XEN) mm.c:1983:d0 Error pfn 43f7d4: rd=ffff83036ffef000, od=0000000000000000, caf=180000000000000, taf=0000000000000001 (XEN) Xen WARN at mm.c:1990 (XEN) ----[ Xen-4.3.26579-20130221.171413 x86_64 debug=y Not tainted ]---- (XEN) CPU: 14 (XEN) RIP: e008:[<ffff82c4c0170fdc>] get_page+0x125/0x151 (XEN) RFLAGS: 0000000000010246 CONTEXT: hypervisor (XEN) rax: 7400000000000001 rbx: 0000000000000001 rcx: 0000000000000000 (XEN) rdx: 0000000000000001 rsi: 000000000000000a rdi: ffff82c4c0280748 (XEN) rbp: ffff83036ff2f958 rsp: ffff83036ff2f908 r8: 000000000000000e (XEN) r9: 0000000000000004 r10: 0000000000000004 r11: 0000000000000001 (XEN) r12: 0180000000000000 r13: 0000000000000000 r14: ffff83036ffef000 (XEN) r15: ffff82e0087efa80 cr0: 000000008005003b cr4: 00000000000026f0 (XEN) cr3: 0000000230871000 cr2: ffff8805abd77f20 (XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: e010 cs: e008 (XEN) Xen stack trace from rsp=ffff83036ff2f908: (XEN) 0000000000000000 0180000000000000 0000000000000001 ffff82c4c01e1726 (XEN) 000000000043f7d4 ffff82e0087efa80 ffff83036ff2f9fc ffff83036ff2f99c (XEN) ffff830231fa8010 ffff830231fa8010 ffff83036ff2f9c8 ffff82c4c01e1d87 (XEN) ffff830300000000 0000000000000086 00000002900d0604 0000000000019110 (XEN) ffff83022fb64000 ffffffff01000048 000000076ff2fa18 0000000000000000 (XEN) ffff83022fb64000 ffff830232319db0 0000000000019110 ffff83036ff2fba0 (XEN) ffff83036ff2fa28 ffff82c4c01098ae ffff83036ff2fa58 ffff83036ff2fba0 (XEN) ffff83036ff2fab8 0000000000000004 0000000000000000 0000000000000000 (XEN) 0000000000000247 ffff830232319db0 0000000000000000 ffff83036ff2fba0 (XEN) ffff83036ff2fae8 ffff82c4c0109e55 ffff83022f019238 0000000000000000 (XEN) ffff83036ff2fad8 0000000000000004 ffff83036ff2fbb0 000082e000000000 (XEN) ffff83022fb64000 ffff8302325a0c58 00000000002338d7 ffff83022f019238 (XEN) 0000000000000000 ffff83022f019238 ffff83022f019238 000002476ff2fba8 (XEN) ffff830300000000 ffff8302325a0c58 000000006d5ce000 0000000000000000 (XEN) ffff83036d5ce000 0000000000000000 0000000000000000 ffff83022fb64000 (XEN) ffff83036ff2fc28 ffff82c4c010bef0 ffff83036ff2fbc4 ffff83036ff2fbc0 (XEN) ffff830300000001 0000000000000096 ffff83036ff2fbec ffff82c4c0319820 (XEN) ffff83036ff28000 ffff83036ff28000 ffff83036ff28000 ffff83036ff28000 (XEN) ffff83036ff28000 ffff83036ff2fbc8 ffff83036ff28000 0000000000000001 (XEN) ffffc90010283a40 0000000000000002 ffff83036ff2fbd8 ffff82c4c0125aa4 (XEN) Xen call trace: (XEN) [<ffff82c4c0170fdc>] get_page+0x125/0x151 (XEN) [<ffff82c4c01e1d87>] get_page_from_gfn_p2m+0x17e/0x284 (XEN) [<ffff82c4c01098ae>] __get_paged_frame+0x5d/0x170 (XEN) [<ffff82c4c0109e55>] __acquire_grant_for_copy+0x494/0x6ae (XEN) [<ffff82c4c010bef0>] gnttab_copy+0x53b/0x843 (XEN) [<ffff82c4c010e3b8>] do_grant_table_op+0x11c5/0x1b82 (XEN) [<ffff82c4c011502f>] do_multicall+0x227/0x444 (XEN) [<ffff82c4c0227f0b>] syscall_enter+0xeb/0x145 (XEN) (XEN) mm.c:1983:d0 Error pfn 43e646: rd=ffff83036ffef000, od=0000000000000000, caf=180000000000000, taf=0000000000000001 (XEN) mm.c:1983:d0 Error pfn 43f86a: rd=ffff83036ffef000, od=0000000000000000, caf=180000000000000, taf=0000000000000001 (XEN) mm.c:1983:d0 Error pfn 43e683: rd=ffff83036ffef000, od=0000000000000000, caf=180000000000000, taf=0000000000000001 (XEN) mm.c:1983:d0 Error pfn 43f31b: rd=ffff83036ffef000, od=0000000000000000, caf=180000000000000, taf=0000000000000001 (XEN) mm.c:1983:d0 Error pfn 43e5f0: rd=ffff83036ffef000, od=0000000000000000, caf=180000000000000, taf=0000000000000001 (XEN) mm.c:1983:d0 Error pfn 43f3b7: rd=ffff83036ffef000, od=0000000000000000, caf=180000000000000, taf=7400000000000001 (XEN) mm.c:1983:d0 Error pfn 43f87c: rd=ffff83036ffef000, od=0000000000000000, caf=180000000000000, taf=7400000000000001 (XEN) irq.c:375: Dom3 callback via changed to Direct Vector 0xf3 ... Olaf _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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