Bugs item #1896261, was opened at 2008-02-18 18:54
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Technologov (technologov)
Assigned to: Nobody/Anonymous (nobody)
Summary: KVM: DamnSmallLinux - fails to reboot
Initial Comment:
Host: F7/x64. Tried on both Intel/AMD CPUs, same results. KVM-61rc1.
Symptoms:
When trying to reboot from guest, the VM stucks at the end of init 6 procedure,
and it doesn't responds anymore, doesn't reboots, and even Qemu's
"system_reset" command doesn't help it.
-There is CPU activity ongoing.
-There is KVM activity ongoing.
-There are no special "dmesg" messages.
-always reproducible.
It works fine under -no-kvm. (no problems)
=================================================
(gdb) bt
#0 0x0000003a016c9aa7 in ioctl () from /lib64/libc.so.6
#1 0x000000000051b4c3 in kvm_run (kvm=0x2a97040, vcpu=0) at libkvm.c:850
#2 0x00000000004fd546 in kvm_cpu_exec (env=<value optimized out>)
at /root/git/kvm/qemu/qemu-kvm.c:127
#3 0x00000000004fe095 in kvm_main_loop_cpu (env=0x2b46840)
at /root/git/kvm/qemu/qemu-kvm.c:307
#4 0x0000000000410e3d in main (argc=<value optimized out>, argv=0x7fffe109d6a8)
at /root/git/kvm/qemu/vl.c:7856
(gdb)
#0 0x0000003a016c9aa7 in ioctl () from /lib64/libc.so.6
#1 0x000000000051b4c3 in kvm_run (kvm=0x2a97040, vcpu=0) at libkvm.c:850
#2 0x00000000004fd546 in kvm_cpu_exec (env=<value optimized out>)
at /root/git/kvm/qemu/qemu-kvm.c:127
#3 0x00000000004fe095 in kvm_main_loop_cpu (env=0x2b46840)
at /root/git/kvm/qemu/qemu-kvm.c:307
#4 0x0000000000410e3d in main (argc=<value optimized out>, argv=0x7fffe109d6a8)
at /root/git/kvm/qemu/vl.c:7856
=================================================
kvm statistics
efer_reload 0 0
exits 18323754 105493
fpu_reload 17589967 105458
halt_exits 17174432 105400
halt_wakeup 0 0
host_state_reload 17803355 105459
insn_emulation 17639540 105401
insn_emulation_fail 0 0
invlpg 0 0
io_exits 324413 0
irq_exits 35615 93
irq_window 0 0
mmio_exits 331498 0
mmu_cache_miss 11538 0
mmu_flooded 10282 0
mmu_pde_zapped 8734 0
mmu_pte_updated 118620 0
mmu_pte_write 130222 0
mmu_recycled 0 0
=================================================
This one is Kaul's bug.
-Technologov, 18.02.2008.
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