Re: WARNING and PANIC in irq_matrix_free

[Thomas Gleixner <tglx@linutronix.de>]

On Mon, 28 May 2018, Song Liu wrote:
> > On May 28, 2018, at 1:09 PM, Thomas Gleixner <tglx@linutronix.de> wrote:
> >
> > On Mon, 28 May 2018, Song Liu wrote:
> >> This doesn't fix the issue with bnxt. Here is a trace with this patch:
> >
> > That's just the backtrace which is not really helpful. The real question is
> > what leads to this scenaria.
> >
> > What I was asking for is to enable the irq_vector and irq_matrix trace
> > points along with ftrace_dump_on_oops. The latter dumps the trace buffer
> > when the problem happens and that should give us a hint what actually
> > causes that.
> 
> Attached is the dump I got. It seems pretty noisy, with many message lost.
> 
> Maybe we cannot enable all trace points under irq_vectors/ and irq_matrix.

Right. Sorry, I forgot to say that we only need the irq_vectors ones which
are related to vector allocation, i.e.: irq_vectors/vector_* 

Thanks,

	tglx