On Thu, Mar 16, 2017 at 09:27:56PM +0200, Michael S. Tsirkin wrote: > On Thu, Mar 16, 2017 at 03:24:41PM -0400, Gabriel L. Somlo wrote: > > On Thu, Mar 16, 2017 at 08:29:32PM +0200, Michael S. Tsirkin wrote: > > > Let's take a step back and try to figure out how is > > > mwait called. How about dumping code of VCPUs > > > around mwait? gdb disa command will do this. > > > > Started guest with '-s', tried to attach from gdb with > > "target remote localhost:1234", got > > "remote 'g' packet reply is too long: <lengthy string of numbers>" > > Try > > set arch x86-64:x86-64 'set architecture i386:x86-64:intel' is what worked for me; Been rooting around for a while, can't find mwait or monitor :( Guess I'll have to recompile KVM to actually issue an invalid opcode, so OS X will print a panic message with the exact address :) Stay tuned... > > > Tried typing 'cont' in the qemu monitor, got os x to crash: > > > > panic (cpu 1 caller 0xffffff7f813ff488): pmLock: waited too long, held > > by 0xffffff7f813eff65 > > > > Hmm, maybe that's where it keeps its monitor/mwait idle loop. > > Restarted the guest, tried this from monitor: > > > > dump-guest-memory foobar 0xffffff7f813e0000 0x20000 > > > > Got "'dump-guest-memory' has failed: integer is for 32-bit values" > > > > Hmmm... I have no idea what I'm doing anymore at this point... :) > > > > --G > > I think 0xffffff7f813ff488 is a PC. > > -- > MST
