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From: Guenter Roeck <linux@roeck-us.net>
To: Liam Howlett <liam.howlett@oracle.com>
Cc: Heiko Carstens <hca@linux.ibm.com>,
	Sven Schnelle <svens@linux.ibm.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mapletree-vs-khugepaged
Date: Thu, 19 May 2022 14:41:55 -0700	[thread overview]
Message-ID: <28f3958f-dd25-cb1a-0a4c-040e7706ffc7@roeck-us.net> (raw)
In-Reply-To: <20220519143541.dfzgoubmkboc6kk4@revolver>

On 5/19/22 07:35, Liam Howlett wrote:
> * Guenter Roeck <linux@roeck-us.net> [220517 10:32]:
> 
> ...
>>
>> Another bisect result, boot failures with nommu targets (arm:mps2-an385,
>> m68k:mcf5208evb). Bisect log is the same for both.
> ...
>> # first bad commit: [bd773a78705fb58eeadd80e5b31739df4c83c559] nommu: remove uses of VMA linked list
> 
> I cannot reproduce this on my side, even with that specific commit.  Can
> you point me to the failure log, config file, etc?  Do you still see
> this with the fixes I've sent recently?
> 

This was in linux-next; most recently with next-20220517.
I don't know if that was up-to-date with your patches.
The problem seems to be memory allocation failures.
A sample log is at
https://kerneltests.org/builders/qemu-m68k-next/builds/1065/steps/qemubuildcommand/logs/stdio
The log history at
https://kerneltests.org/builders/qemu-m68k-next?numbuilds=30
will give you a variety of logs.

The configuration is derived from m5208evb_defconfig, with initrd
and command line embedded in the image. You can see the detailed
configuration updates at
https://github.com/groeck/linux-build-test/blob/master/rootfs/m68k/run-qemu-m68k.sh

Qemu command line is

qemu-system-m68k -M mcf5208evb -kernel vmlinux \
     -cpu m5208 -no-reboot -nographic -monitor none
     -append "rdinit=/sbin/init console=ttyS0,115200"

with initrd from
https://github.com/groeck/linux-build-test/blob/master/rootfs/m68k/rootfs-5208.cpio.gz

I use qemu v6.2, but any recent qemu version should work.

Hope this helps,
Guenter

  reply	other threads:[~2022-05-19 21:42 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-28 17:20 [PATCH] mapletree-vs-khugepaged Guenter Roeck
2022-04-28 19:27 ` Liam Howlett
2022-04-29 12:09 ` Heiko Carstens
2022-04-29 13:01   ` Liam Howlett
2022-04-29 13:10     ` Heiko Carstens
2022-04-29 16:18       ` Liam Howlett
2022-05-02  9:10         ` Geert Uytterhoeven
2022-05-13 14:46   ` Sven Schnelle
2022-05-13 14:51     ` Sven Schnelle
2022-05-13 16:49     ` Andrew Morton
2022-05-13 17:00     ` Liam Howlett
2022-05-15 20:02       ` Sven Schnelle
2022-05-16 14:02         ` Liam Howlett
2022-05-16 15:37           ` Sven Schnelle
2022-05-16 15:50             ` Liam Howlett
2022-05-16 17:10               ` Sven Schnelle
2022-05-17 14:52                 ` Liam Howlett
2022-05-17 11:53       ` Heiko Carstens
2022-05-17 12:26         ` Heiko Carstens
2022-05-17 13:23         ` Guenter Roeck
2022-05-17 15:03           ` Liam Howlett
2022-05-17 16:28             ` Guenter Roeck
2022-05-17 20:38               ` Liam Howlett
2022-05-17 14:32         ` Guenter Roeck
2022-05-19 14:35           ` Liam Howlett
2022-05-19 21:41             ` Guenter Roeck [this message]
2022-05-19 22:38               ` Liam Howlett
2022-05-30 17:38               ` Liam Howlett
2022-05-31 18:56                 ` Liam Howlett
2022-06-01 19:06                   ` Liam Howlett
2022-05-13 17:28     ` Guenter Roeck
2022-05-13 20:12     ` Yang Shi

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