Re: Regression: sched/preempt: Add static_key() to preempt_notifiers breaks my KVM

2015-07-03 Thread Takashi Iwai
At Wed, 1 Jul 2015 08:55:41 +0200, Ingo Molnar wrote: > > > * Josh Boyer wrote: > > > > Tested ok. Thanks. > > > > We've had a report of this in Fedora now. Is the above patch queued > > anywhere? > > > > https://bugzilla.redhat.com/show_bug.cgi?id=1237143 > > Yes, it's in tip:sched/urgent

Re: Regression: sched/preempt: Add static_key() to preempt_notifiers breaks my KVM

2015-06-30 Thread Ingo Molnar
* Josh Boyer wrote: > > Tested ok. Thanks. > > We've had a report of this in Fedora now. Is the above patch queued anywhere? > > https://bugzilla.redhat.com/show_bug.cgi?id=1237143 Yes, it's in tip:sched/urgent, en route to Linus. Thanks, Ingo -- To unsubscribe from this list: send

Re: Regression: sched/preempt: Add static_key() to preempt_notifiers breaks my KVM

2015-06-30 Thread Josh Boyer
On Thu, Jun 25, 2015 at 8:15 AM, Pontus Fuchs wrote: > On 2015-06-25 14:09, Peter Zijlstra wrote: >> >> On Thu, Jun 25, 2015 at 02:00:02PM +0200, Pontus Fuchs wrote: >>> >>> Hi, >>> >> >> That seems pointless.. >> >> --- >> virt/kvm/kvm_main.c | 5 +++-- >> 1 file changed, 3 insertions(+), 2 de

Re: Regression: sched/preempt: Add static_key() to preempt_notifiers breaks my KVM

2015-06-25 Thread Pontus Fuchs
On 2015-06-25 14:09, Peter Zijlstra wrote: On Thu, Jun 25, 2015 at 02:00:02PM +0200, Pontus Fuchs wrote: Hi, That seems pointless.. --- virt/kvm/kvm_main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 90977418aeb6

Re: Regression: sched/preempt: Add static_key() to preempt_notifiers breaks my KVM

2015-06-25 Thread Peter Zijlstra
On Thu, Jun 25, 2015 at 02:00:02PM +0200, Pontus Fuchs wrote: > Hi, > > On 4.1+ kernels I can no longer start my KVM guest. Upon trying to start it > I can see the following log message: > > [ 25.821060] BUG: sleeping function called from invalid context at > kernel/locking/mutex.c:97 > [ 25.

Regression: sched/preempt: Add static_key() to preempt_notifiers breaks my KVM

2015-06-25 Thread Pontus Fuchs
Hi, On 4.1+ kernels I can no longer start my KVM guest. Upon trying to start it I can see the following log message: [ 25.821060] BUG: sleeping function called from invalid context at kernel/locking/mutex.c:97 [ 25.821063] in_atomic(): 1, irqs_disabled(): 0, pid: 2113, name: qemu-system-