On Thu, Aug 27, 2015 at 05:52:58PM +0100, Ken Moffat wrote: > On Thu, Aug 27, 2015 at 12:59:14PM +0100, Ken Moffat wrote: > > On Tue, Aug 25, 2015 at 12:40:15AM +0100, Ken Moffat wrote: > > > (Cc'ing qemu-devel, please keep me in the Cc). > > > > > > TL;DR - qemu locks up my machine when I use 4.2-rc kernels. > > > > > Previous mail, or at least the copy to qemu, archived at > > https://lists.gnu.org/archive/html/qemu-devel/2015-08/msg02784.html > > > > I started bisecting, but it is going to be a slow business - kernels > > which seem to be ok after e.g. 3 hours can still lock the box. I > > left it running overnight, and this morning it was still up - but > > firefox could no longer connect externally. I eventually tracked > > that to my logs taking the space. But one reason the logs had > > become so big was the following (found from this morning's restart): > > > > Aug 27 09:50:28 ac4tv kernel: [ 124.279813] BUG: scheduling while > > atomic: qemu-system-x86/1789/0x00000002 > > Aug 27 09:50:28 ac4tv kernel: [ 124.279819] Modules linked in: > > psmouse i2c_piix4 asus_atk0110 microcode k10temp > > Aug 27 09:50:28 ac4tv kernel: [ 124.279828] Preemption disabled > > at:[<ffffffff8100787c>] kvm_vcpu_ioctl+0x7c/0x580 > > This is definitely a *different* bug - I just tried the next kernel, > and started to get these messages (almost 100,000 lines of them in > the next 4 minutes) : if that had been happening a couple of weeks > ago, I would have noticed ;-) > > But, the end result is that I cannot attempt to bisect the lockups, > this scheduling while atomic business is preventing me looking for a > good kernel. > > Has anybody had success qith qemu on an x86_64 host running a 4.2-rc > kernel ? Looks as if I'll have to give up, and hope that the main > problem doe not spread to 4.1. > What will (hopefully) be my last comment on this - I went back to 4.1.3 on the host, and after a couple of hours it locked up. Maybe in the past I have jsut been lucky. I think in future I'll probably stick to native builds., it seems to be less painful.
ĸen -- Il Porcupino Nil Sodomy Est! (if you will excuse my latatian) aka "The hedgehog song" -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
