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charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: oracle.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: SN6PR10MB3022.namprd10.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 6366d10a-b4a0-4300-87ba-08da39e85c49 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 May 2022 22:38:56.9708 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 4e2c6054-71cb-48f1-bd6c-3a9705aca71b X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: ynPwAH8+/BWcWVSgFptQKsHNCMHkBMD5DiAhjPzz4R4cHw8fI6GyM0dhlhLcF/iIuxVPRJX8yCw3yTHnjKyjPw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR10MB1820 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.486,18.0.874 definitions=2022-05-19_06:2022-05-19,2022-05-19 signatures=0 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 spamscore=0 mlxscore=0 phishscore=0 suspectscore=0 mlxlogscore=999 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2202240000 definitions=main-2205190121 X-Proofpoint-ORIG-GUID: 3MZLIY12JkoZ8OOetLCyzDVDdcP1mqHI X-Proofpoint-GUID: 3MZLIY12JkoZ8OOetLCyzDVDdcP1mqHI Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Guenter Roeck [220519 17:42]: > On 5/19/22 07:35, Liam Howlett wrote: > > * Guenter Roeck [220517 10:32]: > >=20 > > ... > > >=20 > > > Another bisect result, boot failures with nommu targets (arm:mps2-an3= 85, > > > m68k:mcf5208evb). Bisect log is the same for both. > > ... > > > # first bad commit: [bd773a78705fb58eeadd80e5b31739df4c83c559] nommu:= remove uses of VMA linked list > >=20 > > I cannot reproduce this on my side, even with that specific commit. Ca= n > > you point me to the failure log, config file, etc? Do you still see > > this with the fixes I've sent recently? > >=20 >=20 > 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/qemubui= ldcommand/logs/stdio > The log history at > https://kerneltests.org/builders/qemu-m68k-next?numbuilds=3D30 > will give you a variety of logs. I did hunt that down. It looks like it's allocating 512kb and failing. I tried the commit you see the failures on and my qemu boots fine. >=20 > 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-qe= mu-m68k.sh >=20 > Qemu command line is >=20 > qemu-system-m68k -M mcf5208evb -kernel vmlinux \ > -cpu m5208 -no-reboot -nographic -monitor none > -append "rdinit=3D/sbin/init console=3DttyS0,115200" >=20 > with initrd from > https://github.com/groeck/linux-build-test/blob/master/rootfs/m68k/rootfs= -5208.cpio.gz I'm using buildroot-2022.02.1, so maybe that's the difference? Buildroot has the following qemu line: qemu-system-m68k -M mcf5208evb -cpu m5208 -kernel vmlinux -nographic >=20 > I use qemu v6.2, but any recent qemu version should work. >=20 > Hope this helps, > Guenter Thanks for the information. I will keep digging into it. Liam