Re: [Qemu-devel] latest master: major slowdown (something spinning?)

[Michael R. Hines]

Will do, in the meantime, QEMU just printed out this error message:

main-loop: WARNING: I/O thread spun for 1000 iterations

Will get the traces later for you....

- Michael

On 04/10/2013 08:46 AM, Paolo Bonzini wrote:
> Il 10/04/2013 14:43, Michael R. Hines ha scritto:
> > Yes, it still happens at that commit string.
> >
> > Is there a specific test or trace I can provide to help track it down?
> You can try:
>
> 1) first, please post the exact QEMU command line your using;
>
> 2) put "strace -e poll" in front and post the final lines.  Also post
> the output of "ls -l /proc/<pid>/fd" where <pid> is QEMU's pid.
>
> 3) if the output of "strace -e poll" hangs, instead, run it under gdb
> and post a backtrace.  Perhaps continue the process a few times and
> check if the backtrace remains the same or changes.
>
> Paolo