Messages in this thread | | | Date | Sun, 4 Nov 2018 11:19:49 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: BUG: "do_IRQ: 0.39 No irq handler for vector" from a 16550 port |
| |
On Fri, 2 Nov 2018, Holger Schurig wrote:
> I said that kernel 4.9 doesn't show the issue. The same was for later > kernels up to 4.13. > > I had a compilation issue with 4.14 (which I later solved, something > unrelated with tools/objcopy when compiling for a different > architecture), so I did a git bisect between v4.13 and v4.15. This is > the outcome: > > git bisect bad 464d12309e1b5829597793db551ae8ecaecf4036 > # first bad commit: [464d12309e1b5829597793db551ae8ecaecf4036] x86/vector: Switch IOAPIC to global reservation mode
Which is not surprising because the old model just hid the issue of interrupts which came in after the interrupt had been torn down.
I have no idea what causes this, but it seems to be related to the particular hardware/BIOS combination.
Thanks,
tglx
| |