On Wed, Oct 09, 2019 at 11:15:04AM +0200, Paolo Bonzini wrote: > On 09/10/19 10:02, Jan Glauber wrote:
> > I'm still not sure what the actual issue is here, but could it be some bad > > interaction between the notify_me and the list_lock? The are both 4 byte > > and side-by-side: > > > > address notify_me: 0xaaaadb528aa0 sizeof notify_me: 4 > > address list_lock: 0xaaaadb528aa4 sizeof list_lock: 4 > > > > AFAICS the generated code looks OK (all load/store exclusive done > > with 32 bit size): > > > > e6c: 885ffc01 ldaxr w1, [x0] > > e70: 11000821 add w1, w1, #0x2 > > e74: 8802fc01 stlxr w2, w1, [x0] > > > > ...but if I bump notify_me size to uint64_t the issue goes away. > > Ouch. :) Is this with or without my patch(es)? > > Also, what if you just add a dummy uint32_t after notify_me? With the dummy the testcase also runs fine for 500 iterations. Dann, can you try if this works on the Hi1620 too? --Jan -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1805256 Title: qemu-img hangs on rcu_call_ready_event logic in Aarch64 when converting images To manage notifications about this bug go to: https://bugs.launchpad.net/kunpeng920/+bug/1805256/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
