Re: [PATCH] backport: sched/rtmutex/deadline: Fix a PI crash for deadline tasks

2018-11-06 Thread Henrik Austad
On Tue, Nov 06, 2018 at 02:22:10PM +0100, Peter Zijlstra wrote: > On Tue, Nov 06, 2018 at 01:47:21PM +0100, Henrik Austad wrote: > > From: Xunlei Pang > > > > On some of our systems, we notice this error popping up on occasion, > > completely hanging the system. > > > >[]

Re: [PATCH] backport: sched/rtmutex/deadline: Fix a PI crash for deadline tasks

2018-11-06 Thread Henrik Austad
On Tue, Nov 06, 2018 at 02:22:10PM +0100, Peter Zijlstra wrote: > On Tue, Nov 06, 2018 at 01:47:21PM +0100, Henrik Austad wrote: > > From: Xunlei Pang > > > > On some of our systems, we notice this error popping up on occasion, > > completely hanging the system. > > > >[]

Re: [PATCH] backport: sched/rtmutex/deadline: Fix a PI crash for deadline tasks

2018-11-06 Thread Peter Zijlstra
On Tue, Nov 06, 2018 at 01:47:21PM +0100, Henrik Austad wrote: > From: Xunlei Pang > > On some of our systems, we notice this error popping up on occasion, > completely hanging the system. > >[] enqueue_task_dl+0x1f0/0x420 >[] activate_task+0x7c/0x90 >[] push_dl_task+0x164/0x1c8 >

Re: [PATCH] backport: sched/rtmutex/deadline: Fix a PI crash for deadline tasks

2018-11-06 Thread Peter Zijlstra
On Tue, Nov 06, 2018 at 01:47:21PM +0100, Henrik Austad wrote: > From: Xunlei Pang > > On some of our systems, we notice this error popping up on occasion, > completely hanging the system. > >[] enqueue_task_dl+0x1f0/0x420 >[] activate_task+0x7c/0x90 >[] push_dl_task+0x164/0x1c8 >

[PATCH] backport: sched/rtmutex/deadline: Fix a PI crash for deadline tasks

2018-11-06 Thread Henrik Austad
From: Xunlei Pang On some of our systems, we notice this error popping up on occasion, completely hanging the system. [] enqueue_task_dl+0x1f0/0x420 [] activate_task+0x7c/0x90 [] push_dl_task+0x164/0x1c8 [] push_dl_tasks+0x20/0x30 [] __balance_callback+0x44/0x68 []

[PATCH] backport: sched/rtmutex/deadline: Fix a PI crash for deadline tasks

2018-11-06 Thread Henrik Austad
From: Xunlei Pang On some of our systems, we notice this error popping up on occasion, completely hanging the system. [] enqueue_task_dl+0x1f0/0x420 [] activate_task+0x7c/0x90 [] push_dl_task+0x164/0x1c8 [] push_dl_tasks+0x20/0x30 [] __balance_callback+0x44/0x68 []