Re: Crash on boot with CONFIG_JUMP_LABEL in 6.10

[Sam James <sam@gentoo.org>]

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Peter Zijlstra <peterz@infradead.org> writes:

> On Tue, Jul 30, 2024 at 08:36:13PM -0400, matoro wrote:
>> On 2024-07-30 09:50, John David Anglin wrote:
>> > On 2024-07-30 9:41 a.m., John David Anglin wrote:
>> > > On 2024-07-29 7:11 p.m., matoro wrote:
>> > > > Hi all, just bumped to the newest mainline starting with 6.10.2
>> > > > and immediately ran into a crash on boot. Fully reproducible,
>> > > > reverting back to last known good (6.9.8) resolves the issue. 
>> > > > Any clue what's going on here?
>> > > > I can provide full boot logs, start bisecting, etc if needed...
>> > > 6.10.2 built and booted okay on my c8000 with the attached config.
>> > > You could start
>> > > with it and incrementally add features to try to identify the one
>> > > that causes boot failure.
>> > Oh, I have an experimental clocksource patch installed.  You will need
>> > to regenerate config
>> > with "make oldconfig" to use the current timer code.  Probably, this
>> > would happen automatically.
>> > > 
>> > > Your config would be needed to duplicate.    Full boot log would also help.
>> > 
>> > Dave
>> 
>> Hi Dave, bisecting quickly revealed the cause here.
>
> https://lkml.kernel.org/r/20240731105557.GY33588@noisy.programming.kicks-ass.net

Greg, I see tglx's jump_label fix is queued for 6.10.3 but this one
isn't as it came too late. Is there any chance of chucking it in? It's
pretty nasty.

thanks,
sam

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