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Re: [Xen-users] Domu windows 2012 crash.

To: johnny Strom <johnny.strom@xxxxxxxxxxxxxxxxx>, xen-users@xxxxxxxxxxxxxxxxxxxx

From: Hans van Kranenburg <hans@xxxxxxxxxxx>

Date: Sat, 14 Mar 2020 13:54:13 +0100

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Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Delivery-date: Sat, 14 Mar 2020 12:55:24 +0000

List-id: Xen user discussion <xen-users.lists.xenproject.org>

Hi Johnny, On 2/20/20 10:10 AM, johnny Strom wrote: > > After the latest updates/security updates for debian 9 and debian 10, > so will windows 2012 crash if more than 4096 memory is available to domu. I am able to reproduce this with a Windows server essentials 2019 HVM domU. An example from xl dmesg: (XEN) Failed to shatter gfn 105245: -12 (XEN) d75v1 EPT violation 0x19c (--x/rw-) gpa 0x00000105245760 mfn 0x285245 type 0 (XEN) d75v1 Walking EPT tables for GFN 105245: (XEN) d75v1 epte 9c000004105f9007 (XEN) d75v1 epte 9c000002800000f3 (XEN) d75v1 --- GLA 0x7ff98b40d760 (XEN) domain_crash called from vmx.c:3497 (XEN) Domain 75 (vcpu#1) crashed on cpu#4: (XEN) ----[ Xen-4.11.4-pre x86_64 debug=n Not tainted ]---- (XEN) CPU: 4 (XEN) RIP: 0033:[<00007ff98b40d760>] (XEN) RFLAGS: 0000000000010216 CONTEXT: hvm guest (d75v1) (XEN) rax: 0000000000001212 rbx: 000000c714d9da58 rcx: 0000023500001590 (XEN) rdx: 000000c700000001 rsi: 000000c714d9da18 rdi: 000000c714d9db20 (XEN) rbp: 000000c714d9d950 rsp: 000000c714d9d918 r8: 0000023500001470 (XEN) r9: 00000235000014f0 r10: 00007ff99c5c0923 r11: 000000c714d9d970 (XEN) r12: 0000000000000000 r13: 000000c714d9d9d0 r14: 000000c714d9da58 (XEN) r15: 0000000000000006 cr0: 0000000080050031 cr4: 0000000000060678 (XEN) cr3: 00000001d9458002 cr2: 00007ff98b6fa048 (XEN) fsb: 0000000000000000 gsb: 000000c714e9e000 gss: ffffcd015dc40000 (XEN) ds: 002b es: 002b fs: 0053 gs: 002b ss: 002b cs: 0033 > So it's in debian 9 update: xen (4.8.5.final+shim4.10.4-1+deb9u12) > and in debian 10 update: xen (4.11.3+24-g14b62ab3e5-1) that is causing > the crashes. For 4.11, can you please try the workaround to enable "executable EPT superpages" again? It's the ept=exec-sp hypervisor setting, and can also be set without rebooting using: xl set-parameters ept=exec-sp (and no-exec-sp to go back to the default again) This seems to be related to XSA-304, whose patches were included in the latest security uploads in Debian. https://xenbits.xen.org/xsa/advisory-304.html I do not know if it's Windows or Xen at fault here, but at least this workaround stops the domU from crashing all the time. Hans > memory = 5120 = Domu crashes see below > > memory = 4096 = Domu works ok. > > > I am reporting it here since perhaps other distributions might > carry the same patches and have the same problems. > > > > > > Debian 10 Xen hypervisor running windows 2012 as domu. > > > (XEN) Failed to shatter gfn e660e: -12 > (XEN) d3v1 EPT violation 0x19c (--x/rw-) gpa 0x000000e660e075 mfn > 0xceae0e type 0 > (XEN) d3v1 Walking EPT tables for GFN e660e: > (XEN) d3v1 epte 9c00000ec17dd007 > (XEN) d3v1 epte 9c0000078a576007 > (XEN) d3v1 epte 9c00000ceae000f3 > (XEN) d3v1 --- GLA 0x7fca357d075 > (XEN) domain_crash called from vmx.c:3497 > (XEN) Domain 3 (vcpu#1) crashed on cpu#14: > (XEN) ----[ Xen-4.11.4-pre x86_64 debug=n Not tainted ]---- > (XEN) CPU: 14 > (XEN) RIP: 0033:[<000007fca357d075>] > (XEN) RFLAGS: 0000000000010283 CONTEXT: hvm guest (d3v1) > (XEN) rax: 000007fca3e7feb0 rbx: 0000000023c34600 rcx: 000000de005e44f0 > (XEN) rdx: 000000de6cd67210 rsi: 000000de005e44f0 rdi: 000000de005e0358 > (XEN) rbp: 000000de005e4028 rsp: 000000de6f68cec8 r8: 0000000000000004 > (XEN) r9: 0000000000000001 r10: 0000000000000002 r11: 000007fca3571ef8 > (XEN) r12: 0000000000000008 r13: 0000000000000058 r14: 000000de6f68d7e0 > (XEN) r15: 0000000000000002 cr0: 0000000080050031 cr4: 00000000000006f8 > (XEN) cr3: 00000000b5640000 cr2: 000000de6f7a049c > (XEN) fsb: 00000000ff7e6000 gsb: 000007f5ff7e4000 gss: 000007f7bb927000 > (XEN) ds: 002b es: 002b fs: 0053 gs: 002b ss: 002b cs: 0033 > (XEN) Failed to shatter gfn 15f9b: -12 > (XEN) d9v0 EPT violation 0x19c (--x/rw-) gpa 0x00000015f9b000 mfn > 0xcb719b type 0 > (XEN) d9v0 Walking EPT tables for GFN 15f9b: > (XEN) d9v0 epte 9c00000ee8476007 > (XEN) d9v0 epte 9c0000078ccc2007 > (XEN) d9v0 epte 9c00000cb70000f3 > (XEN) d9v0 --- GLA 0x7f63b039000 > (XEN) domain_crash called from vmx.c:3497 > (XEN) Domain 9 (vcpu#0) crashed on cpu#12: > (XEN) ----[ Xen-4.11.4-pre x86_64 debug=n Not tainted ]---- > (XEN) CPU: 12 > (XEN) RIP: 0033:[<000007f63b038ffd>] > (XEN) RFLAGS: 0000000000010246 CONTEXT: hvm guest (d9v0) > (XEN) rax: 0000000000000000 rbx: 0000000000000000 rcx: 000000000000000e > (XEN) rdx: 000007040ab01ff0 rsi: 000000f5a749a3e0 rdi: 0000000000000000 > (XEN) rbp: 000000f5a808f570 rsp: 000000f5a808f470 r8: 0000000000000010 > (XEN) r9: 0000000000000002 r10: 0000000000000000 r11: 0000000000000000 > (XEN) r12: 0000000000000004 r13: 000007f63b0fe3a8 r14: 0000000000000000 > (XEN) r15: 0000000000000001 cr0: 0000000080050031 cr4: 00000000000006f8 > (XEN) cr3: 0000000052280000 cr2: 000007f63b039000 > (XEN) fsb: 0000000039f8a000 gsb: 000007f639f88000 gss: 000007f705f8a000 > (XEN) ds: 002b es: 002b fs: 0053 gs: 002b ss: 002b cs: 0033 > (XEN) Failed to shatter gfn cd7c9: -12 > (XEN) d15v0 EPT violation 0x19c (--x/rw-) gpa 0x000000cd7c9060 mfn > 0xdc37c9 type 0 > (XEN) d15v0 Walking EPT tables for GFN cd7c9: > (XEN) d15v0 epte 9c00000f1e239007 > (XEN) d15v0 epte 9c0000078cc13007 > (XEN) d15v0 epte 9c00000dc36000f3 > (XEN) d15v0 --- GLA 0x7ff7a5b2060 > (XEN) domain_crash called from vmx.c:3497 > (XEN) Domain 15 (vcpu#0) crashed on cpu#14: > (XEN) ----[ Xen-4.11.4-pre x86_64 debug=n Not tainted ]---- > (XEN) CPU: 14 > (XEN) RIP: 0033:[<000007ff7a5b2060>] > (XEN) RFLAGS: 0000000000010206 CONTEXT: hvm guest (d15v0) > (XEN) rax: 0000000000000002 rbx: 0000000000000002 rcx: 000007ff7a5d3c60 > (XEN) rdx: 000007ff7a5cc0d0 rsi: 0000000080070002 rdi: 00000042424bb320 > (XEN) rbp: 0000004241cff869 rsp: 0000004241cff7c8 r8: 000000000000066a > (XEN) r9: 000007ff7a5b8e08 r10: 0000000000000000 r11: 0000000000000246 > (XEN) r12: 0000000000000000 r13: 0000004240e5a478 r14: 000000000000000e > (XEN) r15: 00000042424d3370 cr0: 0000000080050031 cr4: 00000000000006f8 > (XEN) cr3: 0000000112a40000 cr2: 000007ff7a5b2060 > (XEN) fsb: 0000000096c7e000 gsb: 000007f796c7c000 gss: 000007f796c7c000 > (XEN) ds: 002b es: 002b fs: 0053 gs: 002b ss: 002b cs: 0033 > (XEN) Failed to shatter gfn ecddb: -12 > (XEN) d16v0 EPT violation 0x19c (--x/rw-) gpa 0x000000ecddb3b6 mfn > 0xc841db type 0 > (XEN) d16v0 Walking EPT tables for GFN ecddb: > (XEN) d16v0 epte 9c00000ed02af007 > (XEN) d16v0 epte 9c0000078daf2007 > (XEN) d16v0 epte 9c00000c840000f3 > (XEN) d16v0 --- GLA 0x7ff962313b6 > (XEN) domain_crash called from vmx.c:3497 > (XEN) Domain 16 (vcpu#0) crashed on cpu#17: > (XEN) ----[ Xen-4.11.4-pre x86_64 debug=n Not tainted ]---- > (XEN) CPU: 17 > (XEN) RIP: 0033:[<000007ff962313b6>] > (XEN) RFLAGS: 0000000000010246 CONTEXT: hvm guest (d16v0) > (XEN) rax: 0000000000000003 rbx: 0000000004895fd0 rcx: 0000000004895fd0 > (XEN) rdx: 0000000004895fd0 rsi: 0000000007464de0 rdi: 0000000000000000 > (XEN) rbp: 0000000000000000 rsp: 00000000096df660 r8: 0000000004aa7630 > (XEN) r9: 0000000000000000 r10: 000007ff95f7c660 r11: 0000000000000000 > (XEN) r12: 000000007ffe03c0 r13: 0000000000000000 r14: 000000007ffe03b0 > (XEN) r15: 000000007ffe0008 cr0: 0000000080050031 cr4: 00000000000006f8 > (XEN) cr3: 000000007eac0000 cr2: 000000ed1d62a000 > (XEN) fsb: 00000000dc9be000 gsb: 000007f7dc9bc000 gss: fffff802f933d000 > (XEN) ds: 002b es: 002b fs: 0053 gs: 002b ss: 002b cs: 0033 > > > > > > Debian 9 XEN hypervisor running windows 2012 as domu. > > > (XEN) Failed to shatter gfn daf71: -12 > (XEN) d19v0 EPT violation 0x39c (--x/rw-) gpa 0x000000daf710d0 mfn > 0x38a5971 type 0 > (XEN) d19v0 Walking EPT tables for GFN daf71: > (XEN) d19v0 epte 9c00004019911107 > (XEN) d19v0 epte 9c0000201a67f107 > (XEN) Failed to shatter gfn ca3dc: -12 > (XEN) d19v0 epte 9c000038a5800bf3 > (XEN) d19v0 --- GLA 0x7f8fc0130d0 > (XEN) domain_crash called from vmx.c:3385 > (XEN) d19v1 EPT violation 0x39c (--x/rw-) gpa 0x000000ca3dc430 mfn > 0x38b65dc type 0 > (XEN) Domain 19 (vcpu#0) crashed on cpu#29: > (XEN) d19v1 Walking EPT tables for GFN ca3dc: > (XEN) ----[ Xen-4.8.5 x86_64 debug=n Not tainted ]---- > (XEN) CPU: 29 > (XEN) RIP: 0033:[<000007f8fc0130d0>] > (XEN) RFLAGS: 0000000000010246 CONTEXT: hvm guest (d19v0) > (XEN) rax: 000007f8fc0130d0 rbx: 0000000000000001 rcx: 00000040673d4430 > (XEN) rdx: 0000004002a8e3b0 rsi: 0000000000000001 rdi: 00000040673d42d0 > (XEN) rbp: 0000004002a8e930 rsp: 0000004002a8e348 r8: 0000000000000001 > (XEN) r9: 0000000000000000 r10: 0000000000000000 r11: 000007f8fb5d3020 > (XEN) r12: 0000004002a8f510 r13: 0000004002a8eed0 r14: 00000040676c0e20 > (XEN) r15: 0000004067450768 cr0: 0000000080050031 cr4: 00000000001506f8 > (XEN) cr3: 0000000122000000 cr2: 000007f8fc0130d0 > (XEN) fsb: 00000000ff3d2000 gsb: 000007f5ff3d0000 gss: 000007f7eb928000 > (XEN) ds: 002b es: 002b fs: 0053 gs: 002b ss: 002b cs: 0033 > (XEN) d19v1 epte 9c00004019911107 > (XEN) d19v1 epte 9c0000201a67f107 > (XEN) domain_crash called from vmx.c:3385 > (XEN) Failed to shatter gfn 3e8f3: -12 > (XEN) printk: 2 messages suppressed. > (XEN) d20v0 EPT violation 0x39c (--x/rw-) gpa 0x0000003e8f3010 mfn > 0x3901ef3 type 0 > (XEN) d20v0 Walking EPT tables for GFN 3e8f3: > (XEN) d20v0 epte 9c000040128ff107 > (XEN) d20v0 epte 9c00002059ee9107 > (XEN) d20v0 epte 9c00003901e00bf3 > (XEN) d20v0 --- GLA 0x7f8780b5010 > (XEN) domain_crash called from vmx.c:3385 > (XEN) Domain 20 (vcpu#0) crashed on cpu#35: > (XEN) ----[ Xen-4.8.5 x86_64 debug=n Not tainted ]---- > (XEN) CPU: 35 > (XEN) RIP: 0033:[<000007f8780b5010>] > (XEN) RFLAGS: 0000000000010283 CONTEXT: hvm guest (d20v0) > (XEN) rax: 000007f8780b5010 rbx: 000007f8780b6e00 rcx: 0000000004b50de0 > (XEN) rdx: 000000000992d6f0 rsi: 0000000000000000 rdi: 000007f878097d80 > (XEN) rbp: 0000000004b50de0 rsp: 000000000992d6c8 r8: 0000000000000010 > (XEN) r9: 0000000000000002 r10: 000007f8780b6e00 r11: 0000000000000001 > (XEN) r12: 000007f89bbb3ea8 r13: 000007f89babeb28 r14: 000007f8780b6bb0 > (XEN) r15: 000000000992d930 cr0: 0000000080050031 cr4: 00000000001506f8 > (XEN) cr3: 00000000e8400000 cr2: 0000005730908000 > (XEN) fsb: 000000004a060000 gsb: 000007f64a05e000 gss: 000007f79c1c2000 > (XEN) ds: 002b es: 002b fs: 0053 gs: 002b ss: 002b cs: 0033 > (XEN) Failed to shatter gfn db554: -12 > (XEN) d22v1 EPT violation 0x39c (--x/rw-) gpa 0x000000db554f70 mfn > 0x3c65354 type 0 > (XEN) d22v1 Walking EPT tables for GFN db554: > (XEN) d22v1 epte 9c00004006b1d107 > (XEN) d22v1 epte 9c0000201d16e107 > (XEN) d22v1 epte 9c00003c65200bf3 > (XEN) d22v1 --- GLA 0x7fd2cb99f70 > (XEN) domain_crash called from vmx.c:3385 > (XEN) Domain 22 (vcpu#1) crashed on cpu#31: > (XEN) ----[ Xen-4.8.5 x86_64 debug=n Not tainted ]---- > (XEN) CPU: 31 > (XEN) RIP: 0033:[<000007fd2cb99f70>] > (XEN) RFLAGS: 0000000000010206 CONTEXT: hvm guest (d22v1) > (XEN) rax: 000007fd2cb99f70 rbx: 000000473498eec8 rcx: 00000047349935b0 > (XEN) rdx: 000000473498cbe0 rsi: 000000000000000d rdi: 00000047349935b0 > (XEN) rbp: 00000046338cc040 rsp: 00000046338cbfc8 r8: 00000046338cbd98 > (XEN) r9: fffffffeff1edb14 r10: 0000000000000000 r11: 0000000000000001 > (XEN) r12: 000007fd376385b8 r13: 0000004633c3d5e0 r14: 000000473498cdb0 > (XEN) r15: 0000004859c65478 cr0: 0000000080050031 cr4: 00000000001506f8 > (XEN) cr3: 00000000cc000000 cr2: 000007fd2cb99f70 > (XEN) fsb: 0000000002065000 gsb: 000007f702063000 gss: 000007f702063000 > (XEN) ds: 002b es: 002b fs: 0053 gs: 002b ss: 002b cs: 0033 > (XEN) Failed to shatter gfn c662c: -12 > (XEN) d23v0 EPT violation 0x39c (--x/rw-) gpa 0x000000c662c8b8 mfn > 0x3dba02c type 0 > (XEN) d23v0 Walking EPT tables for GFN c662c: > (XEN) d23v0 epte 9c000040159e4107 > (XEN) d23v0 epte 9c0000201cfc6107 > (XEN) d23v0 epte 9c00003dba000bf3 > (XEN) d23v0 --- GLA 0x7fa57bd58b8 > (XEN) domain_crash called from vmx.c:3385 > (XEN) Domain 23 (vcpu#0) crashed on cpu#34: > (XEN) ----[ Xen-4.8.5 x86_64 debug=n Not tainted ]---- > (XEN) CPU: 34 > (XEN) RIP: 0033:[<000007fa57bd58b8>] > (XEN) RFLAGS: 0000000000010202 CONTEXT: hvm guest (d23v0) > (XEN) rax: 0000000000000000 rbx: 0000000000000000 rcx: 000000a99e82eaa0 > (XEN) rdx: 0000000000000000 rsi: 000000000000000c rdi: 000000a99e82f1c0 > (XEN) rbp: 000000000002b02a rsp: 000000a99e82ea58 r8: 0000000000000003 > (XEN) r9: 000007fa57b2e2f0 r10: 0000000000000000 r11: 0000000000000000 > (XEN) r12: 0000000000000000 r13: 000000a99e82f1c0 r14: 000000a99e82eaf0 > (XEN) r15: 000000000000000c cr0: 0000000080050031 cr4: 00000000001506f8 > (XEN) cr3: 0000000109700000 cr2: 000007fa6c62d8bb > (XEN) fsb: 00000000e80d2000 gsb: 000007f6e80d0000 gss: 000007f6e80d0000 > (XEN) ds: 002b es: 002b fs: 0053 gs: 002b ss: 002b cs: 0033 > > > _______________________________________________ > Xen-users mailing list > Xen-users@xxxxxxxxxxxxxxxxxxxx > https://lists.xenproject.org/mailman/listinfo/xen-users > _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/mailman/listinfo/xen-users

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