linux-kernel - Re: [llvmlinux] percpu | bitmap issue? (Cannot boot on bare metal due to a kernel NULL pointer dereference)

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Message-ID: <20150914124729.GA29030@gmail.com>
Date:	Mon, 14 Sep 2015 14:47:29 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Sedat Dilek <sedat.dilek@...il.com>
Cc:	Peter Zijlstra <peterz@...radead.org>, Baoquan He <bhe@...hat.com>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	Tejun Heo <tj@...nel.org>, Christoph Lameter <cl@...ux.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Rientjes <rientjes@...gle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Thomas Graf <tgraf@...g.ch>,
	the arch/x86 maintainers <x86@...nel.org>,
	llvmlinux@...ts.linuxfoundation.org
Subject: Re: [llvmlinux] percpu | bitmap issue? (Cannot boot on bare metal
 due to a kernel NULL pointer dereference)


* Sedat Dilek <sedat.dilek@...il.com> wrote:

> On Mon, Sep 14, 2015 at 11:59 AM, Ingo Molnar <mingo@...nel.org> wrote:
> >
> > * Sedat Dilek <sedat.dilek@...il.com> wrote:
> >
> >> From my side... How can the correbolation be improved...?
> >
> > The best workflow would be for someone to send patches that are considered 
> > clean enough.
> 
> What do you mean by "patches that are considered clean"?
> 
> "Clean" in the sense of is-not-a-hackery and/or
> patch-does-not-follow-Linux-kernel-development-guidelines [1]?

Both in the end.

> Oh, if we all would follow Peter H. blog-article "On commit messages" [2].
> ( /me dreams of a better world. )

So if _you_ start sending those patches then you need to fix known problems.
You don't have to keep the patches as-is as you found them, you are free to fix 
them, open source and all that.

Just start simple, with a single, obvious looking patch, and we'll see from there 
on?

Thanks,

	Ingo
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