From: Jan Kiszka <jan.kiszka@siemens.com>
To: Avi Kivity <avi@redhat.com>
Cc: qemu-devel <qemu-devel@nongnu.org>, KVM list <kvm@vger.kernel.org>
Subject: Re: [Qemu-devel] Segfault starting vcpu thread
Date: Wed, 11 Jul 2012 13:55:21 +0200 [thread overview]
Message-ID: <4FFD69A9.2050504@siemens.com> (raw)
In-Reply-To: <4FFD67B2.5090306@redhat.com>
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
next prev parent reply other threads:[~2012-07-11 11:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-11 11:46 [Qemu-devel] Segfault starting vcpu thread Avi Kivity
2012-07-11 11:55 ` Jan Kiszka [this message]
2012-07-11 11:58 ` Avi Kivity
2012-07-11 11:59 ` Jan Kiszka
2012-07-11 12:04 ` Avi Kivity
2012-07-11 12:08 ` Avi Kivity
2012-07-11 12:40 ` Paolo Bonzini
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