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Date:   Thu, 21 May 2020 18:27:04 +0100
From:   Al Viro <viro@zeniv.linux.org.uk>
To:     Guenter Roeck <linux@roeck-us.net>
Cc:     ira.weiny@intel.com, linux-kernel@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>,
        Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
        "James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
        Helge Deller <deller@gmx.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>,
        "David S. Miller" <davem@davemloft.net>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
        x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Andy Lutomirski <luto@kernel.org>,
        Peter Zijlstra <peterz@infradead.org>,
        Chris Zankel <chris@zankel.net>,
        Max Filippov <jcmvbkbc@gmail.com>,
        Dan Williams <dan.j.williams@intel.com>,
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        linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org,
        linuxppc-dev@lists.ozlabs.org, sparclinux@vger.kernel.org,
        linux-xtensa@linux-xtensa.org, dri-devel@lists.freedesktop.org,
        Christian Koenig <christian.koenig@amd.com>,
        Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH] arch/{mips,sparc,microblaze,powerpc}: Don't enable
 pagefault/preempt twice
Message-ID: <20200521172704.GF23230@ZenIV.linux.org.uk>
References: <20200507150004.1423069-8-ira.weiny@intel.com>
 <20200518184843.3029640-1-ira.weiny@intel.com>
 <20200519165422.GA5838@roeck-us.net>
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On Tue, May 19, 2020 at 09:54:22AM -0700, Guenter Roeck wrote:
> On Mon, May 18, 2020 at 11:48:43AM -0700, ira.weiny@intel.com wrote:
> > From: Ira Weiny <ira.weiny@intel.com>
> > 
> > The kunmap_atomic clean up failed to remove one set of pagefault/preempt
> > enables when vaddr is not in the fixmap.
> > 
> > Fixes: bee2128a09e6 ("arch/kunmap_atomic: consolidate duplicate code")
> > Signed-off-by: Ira Weiny <ira.weiny@intel.com>
> 
> microblazeel works with this patch, as do the nosmp sparc32 boot tests,
> but sparc32 boot tests with SMP enabled still fail with lots of messages
> such as:

BTW, what's your setup for sparc32 boot tests?  IOW, how do you manage to
shrink the damn thing enough to have the loader cope with it?  I hadn't
been able to do that for the current mainline ;-/