Re: [syzbot] [kernel?] general protection fault in timers_dead_cpu
Borislav Petkov <[email protected]>
| Newsgroups | org.kernel.vger.linux-edac,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <20260817235553.GAaoOfieqJBZTsAn3N@fat_crate.local> |
On Mon, Aug 17, 2026 at 11:14:35PM +0200, Thomas Gleixner wrote:
> timers_dead_cpu()
> migrate timer to CPU0
>
> // Migrates the MCE timer of CPU1, which is a bug in itself
Stupid question: can we prevent this?
As in, this timer is not migratable, do not migrate it.
But then what do you do with a timer which is not migratable and its CPU goes
offline?
Perhaps cancel it...
It won't matter in the MCE case, that's for sure.
Anyway, just some musings from reading this...
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette