On (Tue) 16 Jul 2013 [20:19:39], Laszlo Ersek wrote:
> When the IO thread calls monitor_flush() repeatedly & quickly in
> succession, outside of callback context, many redundant G_IO_OUT watches
> are installed. (One such caller is the "info tlb" / tlb_info() HMP
> command which produces a lot of monitor output.)
>
> While this redundancy is no problem in itself, it can trigger -1/EINVAL
> in poll() by growing "gpollfds" beyond limits. This is a persistent
> condition, causing qemu to spin in the main loop.
>
> Patch #2 corrects this.
>
> My first stab at a fix was patch #1. Although in retrospect probably
> unrelated to the main problem, I'm including it because it should
> qualify as an improvement / cleanup in its own right.
>
> See <https://bugzilla.redhat.com/show_bug.cgi?id=970047> for more
> details.
Reviewed-by: Amit Shah <amit.s...@redhat.com>
Amit
