Re: [PATCH v2 00/13] arch, mm: deprecate DISCONTIGMEM

From: Jens Axboe <axboe@kernel.dk>
To: Mike Rapoport <rppt@kernel.org>,
	John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Alexey Dobriyan <adobriyan@gmail.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Greg Ungerer <gerg@linux-m68k.org>,
	Jonathan Corbet <corbet@lwn.net>,
	Matt Turner <mattst88@gmail.com>, Meelis Roos <mroos@linux.ee>,
	Michael Schmitz <schmitzmic@gmail.com>,
	Mike Rapoport <rppt@linux.ibm.com>,
	Russell King <linux@armlinux.org.uk>,
	Tony Luck <tony.luck@intel.com>,
	Vineet Gupta <vgupta@synopsys.com>, Will Deacon <will@kernel.org>,
	linux-alpha@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, linux-ia64@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
	linux-mm@kvack.org, linux-snps-arc@lists.infradead.org
Subject: Re: [PATCH v2 00/13] arch, mm: deprecate DISCONTIGMEM
Date: Tue, 1 Dec 2020 08:03:03 -0700	[thread overview]
Message-ID: <59351dbb-96cc-93b2-f2ec-b8968e935845@kernel.dk> (raw)
In-Reply-To: <20201201135623.GA751215@kernel.org>

On 12/1/20 6:56 AM, Mike Rapoport wrote:
> (added Jens)
> 
> On Tue, Dec 01, 2020 at 01:16:05PM +0100, John Paul Adrian Glaubitz wrote:
>> Hi Mike!
>>
>> On 12/1/20 1:10 PM, Mike Rapoport wrote:
>>> On Tue, Dec 01, 2020 at 12:35:09PM +0100, John Paul Adrian Glaubitz wrote:
>>>> Hi Mike!
>>>>
>>>> On 12/1/20 11:29 AM, Mike Rapoport wrote: 
>>>>> These changes are in linux-mm tree (https://www.ozlabs.org/~akpm/mmotm/
>>>>> with a mirror at https://github.com/hnaz/linux-mm)
>>>>>
>>>>> I beleive they will be coming in 5.11.
>>>>
>>>> Just pulled from that tree and gave it a try, it actually fails to build:
>>>>
>>>>   LDS     arch/ia64/kernel/vmlinux.lds
>>>>   AS      arch/ia64/kernel/entry.o
>>>> arch/ia64/kernel/entry.S: Assembler messages:
>>>> arch/ia64/kernel/entry.S:710: Error: Operand 2 of `and' should be a general register
>>>> arch/ia64/kernel/entry.S:710: Error: qualifying predicate not followed by instruction
>>>> arch/ia64/kernel/entry.S:848: Error: Operand 2 of `and' should be a general register
>>>> arch/ia64/kernel/entry.S:848: Error: qualifying predicate not followed by instruction
>>>>   GEN     usr/initramfs_data.cpio
>>>> make[1]: *** [scripts/Makefile.build:364: arch/ia64/kernel/entry.o] Error 1
>>>> make: *** [Makefile:1797: arch/ia64/kernel] Error 2
>>>> make: *** Waiting for unfinished jobs....
>>>>   CC      init/do_mounts_initrd.o
>>>>   SHIPPED usr/initramfs_inc_data
>>>>   AS      usr/initramfs_data.o
>>>
>>> Hmm, it was buidling fine with v5.10-rc2-mmotm-2020-11-07-21-40.
>>> I'll try to see what could cause this.
>>>
>>> Do you build with defconfig or do you use a custom config?
>>
>> That's with "localmodconfig", see attached configuration file.
> 
> Thanks.
> It seems that the recent addition of TIF_NOTIFY_SIGNAL to ia64 in
> linux-next caused the issue. Can you please try the below patch?

That's a lot of typos in that patch... I wonder why the buildbot hasn't
complained about this. Thanks for fixing this up! I'm going to fold this
into the original to avoid the breakage.

-- 
Jens Axboe