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    SubjectRe: WARNING and PANIC in irq_matrix_free
    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



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