From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Jinjian (Ken)" <jinjian@huawei.com>
Subject: Re: I'm now looking into kvm-unit-tests and encounted with some problems.
Date: Wed, 26 Aug 2015 09:25:00 +0800
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Cc: "Gonglei (Arei)" <arei.gonglei@huawei.com>,
	Zhanghailiang <zhang.zhanghailiang@huawei.com>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	<guoyanjuan@huawei.com>
To: "Huangpeng (Peter)" <peter.huangpeng@huawei.com>,
	"drjones@redhat.com" <drjones@redhat.com>,
	"pbonzini@redhat.com" <pbonzini@redhat.com>
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To Peter,
    Thank you very much!
    I'm sorry this is my first kvm mail, and have no experience.

On 2015/8/26 8:40, Huangpeng (Peter) wrote:
> You should add kvm maillinglist too.
>
> -----=E9=82=AE=E4=BB=B6=E5=8E=9F=E4=BB=B6-----
> =E5=8F=91=E4=BB=B6=E4=BA=BA: Jinjian (Ken)
> =E5=8F=91=E9=80=81=E6=97=B6=E9=97=B4: 2015=E5=B9=B48=E6=9C=8825=E6=97=
=A5 21:42
> =E6=94=B6=E4=BB=B6=E4=BA=BA: drjones@redhat.com; pbonzini@redhat.com
> =E6=8A=84=E9=80=81: Huangpeng (Peter); Gonglei (Arei); Zhanghailiang
> =E4=B8=BB=E9=A2=98: I'm now looking into kvm-unit-tests and encounted=
 with some problems.
>
> Hi all:
>      I'm now looking into kvm-unit-tests and encounted with some prob=
lems.
>
> 1. when I run run_test.sh, it reported "exec: {config_fd}: not found"=
=2E
> how and where to define it?
>
> 2. all tests run with -smp 2(or 3) hang.
> for example, run apic unittest, command as follows:
> qemu-kvm --enable-kvm -device pc-testdev -device
> isa-debug-exit,iobase=3D0xf4,iosize=3D0x4 -serial stdio -device pci-t=
estdev -kernel x86/apic.flat -smp 2 -vnc none
> result: enter into an endless loop
> the related codes are:
> x86/apic.c
>     test_sti_nmi()
>           on_cpu_async(1, sti_loop, 0);
>
>     static void sti_loop(void *ignore)
>     {
>        unsigned k =3D 0;
>
>        while (sti_loop_active) {
>          sti_nop((char *)(ulong)((k++ * 4096) % (128 * 1024 * 1024)))=
;
>        }
>     }
>
> 3. s3 kvm-unit-test hang
> run s3 unittest, command as follows:
> qemu-kvm --enable-kvm -device pc-testdev -device
> isa-debug-exit,iobase=3D0xf4,iosize=3D0x4 -serial stdio -device pci-t=
estdev -kernel x86/s3.flat -vnc none
> s3 hang at resume event
> logs:
> RSDP is at f62c0
> RSDT is at 7fe16a9
> FADT is at 7fe0bda
> FACS is at 7fe0000
> resume vector addr is 7fe000c
> copy resume code from 400350
>
> 4.qemu exit and fail even after the problematic code is commented, wh=
en we run emulate unittest.
> run emulate unittest,command as follows:
> qemu-kvm --enable-kvm -device pc-testdev -device
> isa-debug-exit,iobase=3D0xf4,iosize=3D0x4  -serial stdio -device pci-=
testdev -kernel x86/emulator.flat -vnc none
> result: qemu exit when do test_muldiv
> logs:
> PASS: imul rax, mem, imm
> unhandled cpu excecption 8
>
> If The code which cause qemu exit is commented, the test also fail
> logs:
> FAIL: mov null, %ss
>
> Question:
> What's the cause of the problem at your view? looking forward for you=
r reply.
>
> Thank you in advance.
>
>
>