linux-kernel - Re: [tip:x86/mm] x86/mm/cpa: Fix populate_pgd(): Stop trying to deallocate failed PUDs

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Message-ID: <87h9bggk76.fsf@gmail.com>
Date:	Sat, 23 Jul 2016 22:42:37 +0200
From:	Nicolai Stange <nicstange@...il.com>
To:	tip-bot for Andy Lutomirski <tipbot@...or.com>
Cc:	linux-tip-commits@...r.kernel.org, mingo@...nel.org,
	peterz@...radead.org, dvlasenk@...hat.com, krinkin.m.u@...il.com,
	toshi.kani@...com, mcgrof@...e.com, jpoimboe@...hat.com,
	linux-kernel@...r.kernel.org, Valdis.Kletnieks@...edu,
	brgerst@...il.com, tglx@...utronix.de, akpm@...ux-foundation.org,
	bp@...en8.de, luto@...nel.org, hpa@...or.com,
	torvalds@...ux-foundation.org
Subject: Re: [tip:x86/mm] x86/mm/cpa: Fix populate_pgd(): Stop trying to deallocate failed PUDs

tip-bot for Andy Lutomirski <tipbot@...or.com> writes:

> Valdis Kletnieks bisected a boot failure back to this recent commit:
>
>   360cb4d15567 ("x86/mm/cpa: In populate_pgd(), don't set the PGD entry until it's populated")
>

FYI, I faced the same issue and this patch, applied directly on top of
the faulty 360cb4d15567, fixes it for me.