[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-devel] [PATCH] support HVM guests with more than 3.75G memory
>Interesting - the crash is in the [optional] 'guess_wrmap' function >which is trying to fast path the lookup of a particular va. Can you >try temporarily disabling this optimization and retrying? Just edit >xen/include/asm-x86/shadow2.c to replace > >#define SHADOW2_OPTIMZATIONS 0x03 > >with > >#define SHADOW2_OPTIMZATIONS 0x02 > Your suggestion works for me, and windows 2003 server can boot with 5G memory on 64bit xen. But after I played with it for some time, qemu dm window disappeared, and xen console reported: (XEN) sh2 error: sh2_remove_shadows(): can't find all shadows of mfn 1b2ddd (shadow2_flags=00000100) (XEN) domain_crash called from shadow2-common.c:2251 (XEN) Domain 8 (vcpu#0) crashed on cpu#3: (XEN) ----[ Xen-3.0-unstable Not tainted ]---- (XEN) CPU: 3 (XEN) RIP: 0008:[<0000000080862ca2>] (XEN) RFLAGS: 0000000000010256 CONTEXT: hvm (XEN) rax: 0000000067e97001 rbx: 0000000000000000 rcx: 0000000000000010 (XEN) rdx: 00000000ba482b68 rsi: 0000000000000000 rdi: 00000000f7aa82a0 (XEN) rbp: 00000000ba482b94 rsp: 00000000ba482b54 r8: 0000000000000000 (XEN) r9: 0000000000000000 r10: 0000000000000000 r11: 0000000000000000 (XEN) r12: 0000000000000000 r13: 0000000000000000 r14: 0000000000000000 (XEN) r15: 0000000000000000 cr0: 0000000080010031 cr3: 00000000001a17a0 (XEN) ds: 0023 es: 0023 fs: 0030 gs: 0000 ss: 0010 cs: 0008 (XEN) sh2_update_paging_modes: postponing determination of shadow2 mode (XEN) vmx_do_launch(): GUEST_CR3<=001a17a0, HOST_CR3<=222b8b000 > >and recompile. > >It'd also be good to see if you can reproduce the above error on a >guest with < 4G memory. > With less than 4G RAM, I didn't see this error. Thanks -Xin _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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