On 03/17/2017 12:36 PM, Jiri Denemark wrote:
> Jiri Denemark (14):
> cpu_conf: Introduce virCPUDefFreeFeatures
> cpu: Introduce virCPUExpandFeatures
> cpu: Drop unused flags from cpuArchDecode
> cpu: Move feature expansion out of cpuBaseline
> cpu: Do not pass virConnectBaselineCPUFlags to cpuBaseline
> cputest: Move instantiation of JSONDecoder in cpu-convert.py
> cputest: Rename cpu-convert.py script as cpu-cpuid.py
> cputest: Add cpuidIsSet helper to cpu-cpuid.py
> cputest: Add cpuidLeaf helper to cpu-cpuid.py
> cputest: Add "diff" command to cpu-cpuid.py
> cputest: Generate data for virCPUUpdateLive
> cputest: Disable TSX on broken models
> cputest: Disable "cmt" feature unknown to QEMU
> cputest: Add tests for virCPUUpdateLive API
Does one of these perhaps fix a segv in virCPUUpdateLive? With current
tip of master, it's being called with cpu == NULL:
Thread 5 "lt-libvirtd" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7f89075bf700 (LWP 21908)]
virCPUUpdateLive (arch=VIR_ARCH_X86_64, cpu=0x0,
dataEnabled=dataEnabled@entry=0x7f88d00078e0,
dataDisabled=0x7f88d0006430)
at cpu/cpu.c:750
750 if (cpu->mode != VIR_CPU_MODE_CUSTOM)
(gdb) where
#0 virCPUUpdateLive (arch=VIR_ARCH_X86_64, cpu=0x0,
dataEnabled=dataEnabled@entry=0x7f88d00078e0,
dataDisabled=0x7f88d0006430)
at cpu/cpu.c:750
#1 0x00007f88eb3646ff in qemuProcessUpdateLiveGuestCPU (
asyncJob=QEMU_ASYNC_JOB_START, vm=0x7f88e01e9480, driver=0x7f88e04e9450)
at qemu/qemu_process.c:3876
#2 qemuProcessLaunch (conn=conn@entry=0x7f88d80027f0,
driver=driver@entry=0x7f88e04e9450, vm=vm@entry=0x7f88e01e9480,
asyncJob=asyncJob@entry=QEMU_ASYNC_JOB_START,
incoming=incoming@entry=0x0,
snapshot=snapshot@entry=0x0, vmop=VIR_NETDEV_VPORT_PROFILE_OP_CREATE,
flags=17) at qemu/qemu_process.c:5731
#3 0x00007f88eb364c66 in qemuProcessStart (conn=conn@entry=0x7f88d80027f0,
driver=driver@entry=0x7f88e04e9450, vm=vm@entry=0x7f88e01e9480,
asyncJob=asyncJob@entry=QEMU_ASYNC_JOB_START,
migrateFrom=migrateFrom@entry=0x0, migrateFd=migrateFd@entry=-1,
migratePath=0x0, snapshot=0x0, vmop=VIR_NETDEV_VPORT_PROFILE_OP_CREATE,
flags=17) at qemu/qemu_process.c:5927
#4 0x00007f88eb3bf9be in qemuDomainObjStart (conn=0x7f88d80027f0,
driver=driver@entry=0x7f88e04e9450, vm=0x7f88e01e9480,
flags=flags@entry=0, asyncJob=QEMU_ASYNC_JOB_START)
at qemu/qemu_driver.c:6945
#5 0x00007f88eb3c00b6 in qemuDomainCreateWithFlags (dom=0x7f88d00009f0,
flags=0) at qemu/qemu_driver.c:6999
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