On Wed, Jan 19, 2011 at 01:16:23PM +0800, Xiao Guangrong wrote: > On 01/12/2011 03:39 PM, Xiao Guangrong wrote: > > Fix: > > > > [ 1001.499596] =================================================== > > [ 1001.499599] [ INFO: suspicious rcu_dereference_check() usage. ] > > [ 1001.499601] --------------------------------------------------- > > [ 1001.499604] include/linux/kvm_host.h:301 invoked rcu_dereference_check() without protection! > > ...... > > [ 1001.499636] Pid: 6035, comm: qemu-system-x86 Not tainted 2.6.37-rc6+ #62 > > [ 1001.499638] Call Trace: > > [ 1001.499644] [] lockdep_rcu_dereference+0x9d/0xa5 > > [ 1001.499653] [] gfn_to_memslot+0x8d/0xc8 [kvm] > > [ 1001.499661] [] gfn_to_hva+0x16/0x3f [kvm] > > [ 1001.499669] [] kvm_read_guest_page+0x1e/0x5e [kvm] > > [ 1001.499681] [] kvm_read_guest_page_mmu+0x53/0x5e [kvm] > > [ 1001.499699] [] load_pdptrs+0x3f/0x9c [kvm] > > [ 1001.499705] [] ? vmx_set_cr0+0x507/0x517 [kvm_intel] > > [ 1001.499717] [] kvm_arch_vcpu_ioctl_set_sregs+0x1f3/0x3c0 [kvm] > > [ 1001.499727] [] kvm_vcpu_ioctl+0x6a5/0xbc5 [kvm] > > > > Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxx> > > Ping ...? Applied this fix. For the make_all_cpus_request optimization, can you show numbers with this new version? Because now there is LOCK# similarly to the spinlock. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
