On Thu, May 19, 2016 at 12:38:47PM -0700, Paul E. McKenney wrote: > On Thu, May 19, 2016 at 09:23:39AM -0700, Paul E. McKenney wrote: > > On Thu, May 19, 2016 at 08:40:42AM -0700, Josh Triplett wrote: > > > On Thu, May 19, 2016 at 07:10:13AM -0700, Paul E. McKenney wrote: > > > > On Wed, May 18, 2016 at 09:23:10PM -0700, Josh Triplett wrote: > > > > > On Thu, May 19, 2016 at 11:42:23AM +0800, Boqun Feng wrote: > > > > > > The option "-soundhw pcspk" gives me a error on PPC as follow: > > > > > > > > > > > > qemu-system-ppc64: ISA bus not available for pcspk > > > > > > > > > > > > , which means this option doesn't work on ppc by default. So simply > > > > > > make > > > > > > this an x86-specific option via identify_qemu_args(). > > > > > > > > > > > > Signed-off-by: Boqun Feng <boqun.f...@gmail.com> > > > > > > > > > > The emulated system for RCU testing does not need sound hardware at > > > > > all. > > > > > Paul added this option in commit > > > > > 16c77ea7d0f4a74e49009aa2d26c275f7f93de7c to disable the default sound > > > > > hardware, saying that '"-soundhw pcspk" makes the script a bit less > > > > > dependent on odd audio libraries being installed'. Unfortunately, it > > > > > looks like there isn't a "-soundhw none". As far as I can tell, > > > > > currently the only way to completely eliminate sound hardware is to > > > > > pass > > > > > "-nodefaults" and then explicitly specify each desired device; while > > > > > that would solve the issue, it would likely introduce *more* > > > > > hardware-specific command-line options... > > > > > > > > > > I've filed two feature requests on upstream qemu to make this simpler: > > > > > https://bugs.launchpad.net/qemu/+bug/1583420 and > > > > > https://bugs.launchpad.net/qemu/+bug/1583421 . > > > > > > > > > > Paul, what did you mean by "dependent on odd audio libraries"? Did > > > > > you > > > > > mean in the guest or the host? And either way, is this something that > > > > > could potentially be solved another way? > > > > > > > > If I remember correctly, Ubuntu 14.04 qemu refused to run the guest > > > > without this option, but I don't recall the exact error message. > > > > I chalked it up to my ignorance of qemu, but I would very much welcome > > > > some way to not have to specify irrelevant hardware. So thank you very > > > > much for filing the bugs! > > > > > > According to qemu upstream, qemu doesn't enable any sound hardware by > > > default, so I can't think of any obvious reason why adding "-soundhw > > > pcspkr" would make the rcutorture VM boot. Did qemu refuse to run at > > > all, or did the VM start but fail during the boot process? > > > > > > Could you check if you can currently run without this option? If so, > > > perhaps we should just drop it for now. > > > > Will do! As soon as the current test completes. > > And it now works just fine without the "-soundhw pcspkr". Search me!
In that case, can you replace the patch in this series making "-soundhw pcspkr" target-specific with one removing "-soundhw pcspkr"? - Josh Triplett _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
