we are a IDC company of china, and considering using KVM to implement the virtual machines, but we get the trouble that linux kernel will crash sometimes,<br />
below is the info from dmesg:<br />
<br />
<4>Pid: 68618, comm: qemu-system-x86 Not tainted 2.6.32-358.el6.x86_64 <a href="http://bugs.centos.org/view.php?id=1">0000001</a><br />
<4>Call Trace:<br />
<4> <NMI> [<ffffffff8150cfc8>] ? panic+0xa7/0x16f<br />
<4> [<ffffffff810e10fd>] ? watchdog_overflow_callback+0xcd/0xd0<br />
<4> [<ffffffff81116f00>] ? __perf_event_overflow+0xb0/0x2a0<br />
<4> [<ffffffff8101a7bd>] ? x86_perf_event_update+0x5d/0xb0<br />
<4> [<ffffffff8101b74d>] ? x86_perf_event_set_period+0xdd/0x170<br />
<4> [<ffffffff81117524>] ? perf_event_overflow+0x14/0x20<br />
<4> [<ffffffff810207e2>] ? intel_pmu_handle_irq+0x192/0x300<br />
<4> [<ffffffff81512ba6>] ? kprobe_exceptions_notify+0x16/0x430<br />
<4> [<ffffffff81511719>] ? perf_event_nmi_handler+0x39/0xb0<br />
<4> [<ffffffff815131d5>] ? notifier_call_chain+0x55/0x80<br />
<4> [<ffffffff8151323a>] ? atomic_notifier_call_chain+0x1a/0x20<br />
<4> [<ffffffff8109cbfe>] ? notify_die+0x2e/0x30<br />
<4> [<ffffffff81510e9b>] ? do_nmi+0x1bb/0x340<br />
<4> [<ffffffff81510760>] ? nmi+0x20/0x30<br />
<4> [<ffffffff8150ffd1>] ? _spin_lock+0x21/0x30<br />
<4> <<EOE>> [<ffffffff81055d4d>] ? task_rq_lock+0x5d/0xa0<br />
<4> [<ffffffff81062f6c>] ? try_to_wake_up+0x3c/0x3e0<br />
<4> [<ffffffff81063322>] ? default_wake_function+0x12/0x20<br />
<4> [<ffffffff811972a6>] ? pollwake+0x56/0x60<br />
<4> [<ffffffff81063310>] ? default_wake_function+0x0/0x20<br />
<4> [<ffffffff81051419>] ? __wake_up_common+0x59/0x90<br />
<4> [<ffffffff81055aa8>] ? __wake_up+0x48/0x70<br />
<4> [<ffffffff81086f6d>] ? __send_signal+0x37d/0x390<br />
<4> [<ffffffff81510c78>] ? do_general_protection+0xf8/0x160<br />
<4> [<ffffffff81086fc2>] ? send_signal+0x42/0x80<br />
<4> [<ffffffff81088219>] ? force_sig_info+0x89/0x110<br />
<4> [<ffffffff810882b6>] ? force_sig+0x16/0x20<br />
<4> [<ffffffff8100c48c>] ? __math_state_restore+0x8c/0x90<br />
<4> [<ffffffff8100988e>] ? __switch_to+0x26e/0x320<br />
<4> [<ffffffff8150d692>] ? thread_return+0x0/0x76e<br />
<4> [<ffffffffa02150fb>] ? __vmx_load_host_state+0xab/0x100 [kvm_intel]<br />
<4> [<ffffffffa01bef4b>] ? kvm_arch_vcpu_put+0x4b/0x60 [kvm]<br />
<4> [<ffffffffa01b6075>] ? kvm_vcpu_block+0x75/0xc0 [kvm]<br />
<4> [<ffffffff81096c80>] ? autoremove_wake_function+0x0/0x40<br />
<4> [<ffffffffa01c90f4>] ? kvm_arch_vcpu_ioctl_run+0x5c4/0x1040 [kvm]<br />
<4> [<ffffffffa01b1ff4>] ? kvm_vcpu_ioctl+0x434/0x580 [kvm]<br />
<4> [<ffffffff8105e203>] ? perf_event_task_sched_out+0x33/0x80<br />
<4> [<ffffffff811972a6>] ? pollwake+0x56/0x60<br />
<4> [<ffffffff81063310>] ? default_wake_function+0x0/0x20<br />
<4> [<ffffffff8127d95c>] ? rb_erase+0x1bc/0x310<br />
<4> [<ffffffff810572f0>] ? __dequeue_entity+0x30/0x50<br />
<4> [<ffffffff81194ed2>] ? vfs_ioctl+0x22/0xa0<br />
<4> [<ffffffff81064a00>] ? pick_next_task_fair+0xd0/0x130<br />
<4> [<ffffffff8119539a>] ? do_vfs_ioctl+0x3aa/0x580<br />
<4> [<ffffffff8150d458>] ? schedule+0x178/0x3b2<br />
<4> [<ffffffff811955f1>] ? sys_ioctl+0x81/0xa0<br />
<4> [<ffffffff810dc565>] ? __audit_syscall_exit+0x265/0x290<br />
<4> [<ffffffff8100b072>] ? system_call_fastpath+0x16/0x1b
↧
