Re: Still some lockups when enabling ftrace

2020-02-17 Thread Philippe Gerum via Xenomai
On 2/17/20 7:13 PM, Jan Kiszka wrote: > On 17.02.20 19:10, Philippe Gerum wrote: >> On 2/17/20 6:33 PM, Jan Kiszka wrote: >>> On 17.02.20 18:25, Philippe Gerum wrote: On 2/17/20 6:15 PM, Jan Kiszka via Xenomai wrote: > On 17.02.20 17:57, Jan Kiszka via Xenomai wrote: >> On 17.02.20 17:

Re: Still some lockups when enabling ftrace

2020-02-17 Thread Jan Kiszka via Xenomai
On 17.02.20 19:10, Philippe Gerum wrote: On 2/17/20 6:33 PM, Jan Kiszka wrote: On 17.02.20 18:25, Philippe Gerum wrote: On 2/17/20 6:15 PM, Jan Kiszka via Xenomai wrote: On 17.02.20 17:57, Jan Kiszka via Xenomai wrote: On 17.02.20 17:50, Lange Norbert via Xenomai wrote: I managed to narrow i

Re: Still some lockups when enabling ftrace

2020-02-17 Thread Philippe Gerum via Xenomai
On 2/17/20 6:33 PM, Jan Kiszka wrote: > On 17.02.20 18:25, Philippe Gerum wrote: >> On 2/17/20 6:15 PM, Jan Kiszka via Xenomai wrote: >>> On 17.02.20 17:57, Jan Kiszka via Xenomai wrote: On 17.02.20 17:50, Lange Norbert via Xenomai wrote: > I managed to narrow it down to this: > >

Re: Still some lockups when enabling ftrace

2020-02-17 Thread Jan Kiszka via Xenomai
On 17.02.20 18:25, Philippe Gerum wrote: On 2/17/20 6:15 PM, Jan Kiszka via Xenomai wrote: On 17.02.20 17:57, Jan Kiszka via Xenomai wrote: On 17.02.20 17:50, Lange Norbert via Xenomai wrote: I managed to narrow it down to this: trace-cmd start  -e 'tlb:tlb_flush' Seems to bug the kernel eve

RE: Still some lockups when enabling ftrace

2020-02-17 Thread Lange Norbert via Xenomai
> -Original Message- > From: Jan Kiszka > Sent: Montag, 17. Februar 2020 18:16 > To: Lange Norbert ; Xenomai > (xenomai@xenomai.org) > Subject: Re: Still some lockups when enabling ftrace > > NON-ANDRITZ SOURCE: BE CAUTIOUS WITH CONTENT, LINKS OR > ATTACHMEN

Re: Still some lockups when enabling ftrace

2020-02-17 Thread Philippe Gerum via Xenomai
On 2/17/20 6:15 PM, Jan Kiszka via Xenomai wrote: > On 17.02.20 17:57, Jan Kiszka via Xenomai wrote: >> On 17.02.20 17:50, Lange Norbert via Xenomai wrote: >>> I managed to narrow it down to this: >>> >>> trace-cmd start  -e 'tlb:tlb_flush' >>> >>> Seems to bug the kernel even if no cobalt thread i

Re: Still some lockups when enabling ftrace

2020-02-17 Thread Jan Kiszka via Xenomai
On 17.02.20 17:57, Jan Kiszka via Xenomai wrote: On 17.02.20 17:50, Lange Norbert via Xenomai wrote: I managed to narrow it down to this: trace-cmd start  -e 'tlb:tlb_flush' Seems to bug the kernel even if no cobalt thread is running, only a rt_igb and the rtnet stack. OK, that was alread

Re: Still some lockups when enabling ftrace

2020-02-17 Thread Jan Kiszka via Xenomai
On 17.02.20 17:50, Lange Norbert via Xenomai wrote: I managed to narrow it down to this: trace-cmd start -e 'tlb:tlb_flush' Seems to bug the kernel even if no cobalt thread is running, only a rt_igb and the rtnet stack. OK, that was already my idea as well. That rcu_irq_enter_irqson must

RE: Still some lockups when enabling ftrace

2020-02-17 Thread Lange Norbert via Xenomai
I managed to narrow it down to this: trace-cmd start -e 'tlb:tlb_flush' Seems to bug the kernel even if no cobalt thread is running, only a rt_igb and the rtnet stack. > -Original Message- > From: Xenomai On Behalf Of Lange > Norbert via Xenomai > Sent: Montag, 17. Februar 2020 17:09