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Subject: Re: (bisected) parisc boot crash in post-5.8 git - pgalloc changes
To:     Mike Rapoport <rppt@linux.ibm.com>,
        Matthew Wilcox <willy@infradead.org>
Cc:     linux-parisc@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>,
        Pekka Enberg <penberg@kernel.org>,
        Abdul Haleem <abdhalee@linux.vnet.ibm.com>,
        Andy Lutomirski <luto@kernel.org>,
        Arnd Bergmann <arnd@arndb.de>,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        Joerg Roedel <joro@8bytes.org>, Joerg Roedel <jroedel@suse.de>,
        Max Filippov <jcmvbkbc@gmail.com>,
        "Peter Zijlstra (Intel)" <peterz@infradead.org>,
        Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>,
        Stafford Horne <shorne@gmail.com>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        Steven Rostedt <rostedt@goodmis.org>,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Linus Torvalds <torvalds@linux-foundation.org>
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 <9f2b5ebd-e4a4-0fa1-6cd3-4b9f6892d1ad@linux.ee>
 <20200815184200.GA17456@casper.infradead.org>
 <20200816073406.GD969206@linux.ibm.com>
From:   Meelis Roos <mroos@linux.ee>
Message-ID: <144818a1-83c5-9595-00c0-ebbab3d9b526@linux.ee>
Date:   Sun, 16 Aug 2020 14:13:46 +0300
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16.08.20 10:34 Mike Rapoport wrote:
> Hi,
> 
[...]
> You are right, I've missed that parisc has PMD_ORDER != 0 and the
> simplest fix would be to revert changes to parisc pmd_alloc_one().
> 
> Meelis, can you please try the below patch:

It works on top of current git 5.8.0-13249-ga1d21081a60d - thank you!

Tested-by: Meelis Roos <mroos@linux.ee>