On 2017/5/26 18:40, Paolo Bonzini wrote: > > > On 24/05/2017 07:04, Longpeng (Mike) wrote: >>>> it crashed at *1ec1* and %rax get a wrong value(0xdead000000100100) at *1e92*, >>>> it seems the *blocked_vcpu_on_cpu* list is corrupted, but kvm only access this >>>> list in pre_block/post_block/wakeup_handler, and these three functions seems good. >>>> >>>> kvm version is 4.4-stable. >>>> >>>> Do you have any ideas? Any suggestion would be greatly appreciated, thanks! >>>> >>> Is this only seen with posted interrupt support enabled? Booting with >>> intremap=nopost on the kernel commandline would disable it. Thanks, >> >> We tested with PI support enabled, but we not sure if it only occurs with PI >> enabled yet. > > This code should not run at all with PI disabled, since the handler is > only reachable through an IRTE. > > As you said, the list manipulation in those function is fairly simple. > If you have a reproducer, you can try running it with CONFIG_LIST_DEBUG > and see what you get. > OK. We have already started test for a long time, but didn't panic yet. Thanks :) > Thanks, > > Paolo > > . > -- Regards, Longpeng(Mike)
