Re: Segfault starting vcpu thread

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On 2012-07-11 13:46, Avi Kivity wrote:
> Current qemu-kvm master merged with latest upstream fails on startup:
> 
> (gdb) bt
> #0  0x00007fdcd4a047a0 in kvm_vcpu_ioctl (env=0x0, type=-1071075694) at
> /home/tlv/akivity/qemu/kvm-all.c:1602
> #1  0x00007fdcd49c9fda in kvm_apic_enable_tpr_reporting
> (s=0x7fdcd75af6c0, enable=false) at
> /home/tlv/akivity/qemu/hw/i386/../kvm/apic.c:107
> #2  0x00007fdcd4993d71 in flush_queued_work (env=0x7fdcd75a0c70) at
> /home/tlv/akivity/qemu/cpus.c:680
> #3  0x00007fdcd4993e23 in qemu_wait_io_event_common (env=0x7fdcd75a0c70)
> at /home/tlv/akivity/qemu/cpus.c:694
> #4  0x00007fdcd4993f61 in qemu_kvm_wait_io_event (env=0x7fdcd75a0c70) at
> /home/tlv/akivity/qemu/cpus.c:725
> #5  0x00007fdcd499408c in qemu_kvm_cpu_thread_fn (arg=0x7fdcd75a0c70) at
> /home/tlv/akivity/qemu/cpus.c:757
> #6  0x00007fdcd2e72d14 in start_thread () from /lib64/libpthread.so.0
> 
> APICCommonState::cpu_env in frame 1 is NULL.  I'm looking at it, but if
> you have a quick fix, all the better.
> 

I will try to reproduce. Is there a tree of the merge available? Any
specific command line or guest?

Jan

-- 
Siemens AG, Corporate Technology, CT RTC ITP SDP-DE
Corporate Competence Center Embedded Linux


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