On 03/09/2011 02:06 PM, Michael Tokarev wrote:
Hello.
Dominik Klein (Cc'd) reported on irc that current
FreeBSD release hangs at boot in qemu-kvm. It is
trivially verifiable by d/loading the bootonly
FreeBSD 8.2 CD image from ftp.freebsd.org and
running
kvm -cdrom FreeBSD-8.2-RELEASE-amd64-bootonly.iso.
The guest unpacks kernel, draws a menu (apparently
in real kernel already, not in the boot loader) and
starts a 10-second countdown. At this point it just
stops (either at 10 or 9, ie, right at the beginning
of the cycle) and kvm process starts using 100% of
the CPU core given to it. With this typical kvm_stats
from qemu-kvm 0.14:
kvm statistics
exits 43397783 1400960
halt_exits 42862622 1400769
irq_exits 5487 172
host_state_reload 300074 101
io_exits 292212 18
irq_injections 768 18
halt_wakeup 257 3
mmu_pte_write 7702163 0
insn_emulation 378273 0
mmio_exits 15786 0
pf_fixed 4817 0
mmu_shadow_zapped 170 0
mmu_cache_miss 151 0
remote_tlb_flush 2 0
signal_exits 1 0
fpu_reload 1 0
I tried i386 and amd64 guest images, and tried the same
thing with qemu-kvm 0.12.5 and 0.14.0 - the effect is
exactly the same.
So far the 3 affected systems where we tried this are all
AMD machines. My home box is AthlonII, my work box is
PhenomI 9750, and Dominik tries it on Opteron 6174.
Can't reproduce. What host kernel version are you using?
Please post the output of
info register
x/50i $eip-30
on the qemu monitor.
--
error compiling committee.c: too many arguments to function
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