Messages in this thread | | | From | Thomas Gleixner <> | Subject | Re: [PATCH 5/6] x86/irq: WARN_ONCE() if irq_move_cleanup is called on a pending interrupt | Date | Tue, 11 May 2021 16:23:53 +0200 |
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On Mon, May 10 2021 at 17:55, H. Peter Anvin wrote: > From: "H. Peter Anvin (Intel)" <hpa@zytor.com> > > The current IRQ vector allocation code should be "clean" and never > issue a IRQ_MOVE_CLEANUP_VECTOR IPI for an interrupt that could still > be pending. This should make it possible to move it to the "normal" > system IRQ vector range. This should probably be a three-step process: > > 1. Introduce this WARN_ONCE() on this event ever occurring. > 2. Move the IRQ_MOVE_CLEANUP_VECTOR to the sysvec range. > 3. Remove the self-IPI hack.
Actually 2+3 must be combined because _if_ this ever happens then the self-IPI loops forever.
Thanks,
tglx
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