Re: [PATCH v3 3/4] kernel/smp: add more data to CSD lock debugging

2021-04-05 Thread Paul E. McKenney
On Mon, Apr 05, 2021 at 09:37:40AM +0200, Juergen Gross wrote: > On 02.04.21 18:11, Paul E. McKenney wrote: > > On Fri, Apr 02, 2021 at 05:46:52PM +0200, Juergen Gross wrote: > > > On 30.03.21 19:33, Paul E. McKenney wrote: > > > > On Wed, Mar 24, 2021 at 11:18:03AM +0100, Jürgen Groß wrote: > > >

Re: [PATCH v3 3/4] kernel/smp: add more data to CSD lock debugging

2021-04-05 Thread Juergen Gross
On 02.04.21 18:11, Paul E. McKenney wrote: On Fri, Apr 02, 2021 at 05:46:52PM +0200, Juergen Gross wrote: On 30.03.21 19:33, Paul E. McKenney wrote: On Wed, Mar 24, 2021 at 11:18:03AM +0100, Jürgen Groß wrote: On 02.03.21 07:28, Juergen Gross wrote: In order to help identifying problems with

Re: [PATCH v3 3/4] kernel/smp: add more data to CSD lock debugging

2021-04-02 Thread Paul E. McKenney
On Fri, Apr 02, 2021 at 05:46:52PM +0200, Juergen Gross wrote: > On 30.03.21 19:33, Paul E. McKenney wrote: > > On Wed, Mar 24, 2021 at 11:18:03AM +0100, Jürgen Groß wrote: > > > On 02.03.21 07:28, Juergen Gross wrote: > > > > In order to help identifying problems with IPI handling and remote > >

Re: [PATCH v3 3/4] kernel/smp: add more data to CSD lock debugging

2021-04-02 Thread Juergen Gross
On 30.03.21 19:33, Paul E. McKenney wrote: On Wed, Mar 24, 2021 at 11:18:03AM +0100, Jürgen Groß wrote: On 02.03.21 07:28, Juergen Gross wrote: In order to help identifying problems with IPI handling and remote function execution add some more data to IPI debugging code. There have been

Re: [PATCH v3 3/4] kernel/smp: add more data to CSD lock debugging

2021-03-30 Thread Paul E. McKenney
On Wed, Mar 24, 2021 at 11:18:03AM +0100, Jürgen Groß wrote: > On 02.03.21 07:28, Juergen Gross wrote: > > In order to help identifying problems with IPI handling and remote > > function execution add some more data to IPI debugging code. > > > > There have been multiple reports of cpus looping

Re: [PATCH v3 3/4] kernel/smp: add more data to CSD lock debugging

2021-03-24 Thread Jürgen Groß
On 02.03.21 07:28, Juergen Gross wrote: In order to help identifying problems with IPI handling and remote function execution add some more data to IPI debugging code. There have been multiple reports of cpus looping long times (many seconds) in smp_call_function_many() waiting for another cpu

[PATCH v3 3/4] kernel/smp: add more data to CSD lock debugging

2021-03-02 Thread Juergen Gross
In order to help identifying problems with IPI handling and remote function execution add some more data to IPI debugging code. There have been multiple reports of cpus looping long times (many seconds) in smp_call_function_many() waiting for another cpu executing a function like tlb flushing.