Date: Tue, 07 Apr 2015 15:03:35 +0200 From: =?UTF-8?B?R3VzdGF1IFDDqXJleg==?= <gperez@entel.upc.edu> To: =?UTF-8?B?Um9nZXIgUGF1IE1vbm7DqQ==?= <royger@FreeBSD.org> Cc: freebsd-xen@FreeBSD.org Subject: Fwd: Re: Unable to boot with the dom0 xen kernel Message-ID: <5523D5A7.5040809@entel.upc.edu> In-Reply-To: <5523D56B.9040706@entel.upc.edu> References: <5523D56B.9040706@entel.upc.edu>
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Resending it to the mailing list, just in case. Hi there, > can you apply the > following patch to the Xen source tree and recompile the Xen kernel, > (there's no need to recompile the tools): > > diff --git a/xen/arch/x86/hvm/vmx/vmx.c b/xen/arch/x86/hvm/vmx/vmx.c > index e1c55ce..fc3c45b 100644 > --- a/xen/arch/x86/hvm/vmx/vmx.c > +++ b/xen/arch/x86/hvm/vmx/vmx.c > @@ -3102,8 +3102,7 @@ void vmx_vmexit_handler(struct cpu_user_regs *regs) > if ( exit_qualification & 0x10 ) > { > /* INS, OUTS */ > - if ( unlikely(is_pvh_vcpu(v)) /* PVH fixme */ || > - !handle_mmio() ) > + if ( !handle_mmio() ) > hvm_inject_hw_exception(TRAP_gp_fault, 0); > } > else > Sure. I applied the patch, recompiled the xen kernel, and copied it to /boot (as usual). I also raised the iommu debug level. Now the crash is different: http://dpaste.com/1H4XBY5 I don't if it has to do with the dom0_max_vcpus xen_cmdline option. I lowered it to 2 (the machine has 1 package(s) x 4 core(s) x 2 SMT threads) just in case. Any other thing you'd like me to check, let me know. Best, Gustau > . > > Yes, this is possible from the serial console. Press Ctrl-A tree times > (to switch to the Xen console), and then 'R' (note the caps). > PS: Thanks. I'm unable to bring in the xen console, perhaps because I'm using the serial console, I don't know. I'll try the physical console, just in case. -- --------------------------------------------------------------------------- Prou top-posting : http://ca.wikipedia.org/wiki/Top-posting Stop top-posting : http://en.wikipedia.org/wiki/Posting_style O O O Gustau Pérez i Querol O O O Unitat de Gestió dels departaments O O O Matemàtica Aplicada IV i Enginyeria Telemàtica Universitat Politècnica de Catalunya Edifici C3 - Despatx S101-B UPC Campus Nord UPC C/ Jordi Girona, 1-3 08034 - Barcelona
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