From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 196149] QEMU causes a host hang / reset on PPC64EL when used in
KVM + HV mode (kvm_hv module)
Date: Sat, 26 Aug 2017 22:33:56 +0000
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--- Comment #1 from Timothy Pearson (tpearson@raptorengineering.com) ---
Upgraded kernel to 4.11 and instead of a host crash, the VM just goes down
with:
KVM: unknown exit, hardware reason 10b0000
NIP 0000000000000700 LR 00003fffa634812c CTR 00003fffa6367240 XER
0000000000000000 CPU#1
MSR 8000000000001000 HID0 0000000000000000 HF 8000000000000000 iidx 3 didx 3
TB 00000000 00000000 DECR 00000000
GPR00 fffffeffebe4f4a0 00003fffc7854530 00003fffa64a4700 00000100141b0b60
GPR04 00003fffa6730000 00000000000000b0 0000000000000010 0000000000000020
GPR08 0000000000000030 00003fffa6730000 0000000000000000 00000100141b0b60
GPR12 0000000000000001 00003fffa67b22c0 0000000029584808 00000000295847f8
GPR16 00003fffc7854a80 00003fffc7854a7c 00000000295858a8 0000000000000001
GPR20 000557afa0668167 00003fffa6491040 00000000295858b8 00000000295858c0
GPR24 0000000000000000 00003fffc7854940 00003fffa67aab90 00000000000000b0
GPR28 00000100141b0b60 00000000000000b0 00000000000000b0 00000100141b0920
CR 440008b2 [ G G - - - L LO E ] RES ffffffffffffffff
FPR00 074673502fd86f4c 0000000000000000 0000000000000000 0000000000000000
FPR04 0000000000000000 0000000000000000 00000100141b07d0 00000100141b03c0
FPR08 0000000000000000 000102020101ff00 0000000000000000 0000000000000000
FPR12 00003fffa64e00a0 0000000000000000 0000000000000000 0000000000000000
FPR16 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR20 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR24 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPR28 0000000000000000 0000000000000000 0000000000000000 0000000000000000
FPSCR 0000000000000000
SRR0 00003fffa63672c8 SRR1 800000010280f032 PVR 00000000004d0200 VRSAVE
00000000ffffffff
SPRG0 0000000000000000 SPRG1 c00000000fb80900 SPRG2 00003fffa67b22c0 SPRG3
0000000000000001
SPRG4 0000000000000000 SPRG5 0000000000000000 SPRG6 0000000000000000 SPRG7
0000000000000000
HSRR0 0000000000000000 HSRR1 0000000000000000
CFAR 0000000000000000
LPCR 000000000184f001
SDR1 0000000000000009 DAR 00003fffa6730000 DSISR 0000000042000000
Message from syslogd@host at Aug 26 17:31:46 ...
kernel:[ 909.718710] kvmppc_emulate_mmio: emulation failed (7cc02698)
The fastest way to trigger this fault (nearly 100% reproduction rate) is to try
to boot the CentOS ppc64 full ISO image [1] with the following command line in
QEMU 2.9:
qemu-system-ppc64 --enable-kvm -M pseries -cpu POWER8 -smp
2,cores=2,threads=1,sockets=1 -m 16G -realtime mlock=on -monitor pty disk.qcow2
-cdrom CentOS-7-AltArch-ppc64-Everything-1611.iso
[1]
http://mirror.centos.org/altarch/7/isos/ppc64/CentOS-7-AltArch-ppc64-Everything-1611.iso
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