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Fri, 24 Nov 2023 09:06:04 +0000 (GMT) Content-Type: text/plain; charset=utf-8 Subject: Re: [powerpc] Lockups seen during/just after boot (bisected) From: Sachin Sant In-Reply-To: Date: Fri, 24 Nov 2023 14:35:53 +0530 Cc: Chengming Zhou , linux-mm@kvack.org, linuxppc-dev Message-Id: <0CF12B3F-CD7B-455A-BFC7-827F9392ECB5@linux.ibm.com> References: <5F8DAEC7-E815-40A5-AD4A-B01296F5165F@linux.ibm.com> <8e000449-1e11-43be-87f5-f1826e296c39@bytedance.com> To: Vlastimil Babka X-Mailer: Apple Mail (2.3774.200.91.1.1) X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: zvBxB7iso_10vjb6uN_uhXV12MgrDjMo X-Proofpoint-GUID: zvBxB7iso_10vjb6uN_uhXV12MgrDjMo Content-Transfer-Encoding: quoted-printable X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.987,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-11-23_15,2023-11-22_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 clxscore=1015 phishscore=0 spamscore=0 adultscore=0 bulkscore=0 mlxscore=0 lowpriorityscore=0 suspectscore=0 malwarescore=0 mlxlogscore=475 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311060000 definitions=main-2311240070 X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: ACE9240023 X-Stat-Signature: tj9cscyuc9enfd3w5gxy3trgj7usaey4 X-HE-Tag: 1700816776-865194 X-HE-Meta: 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 BHGuDfTO +bl5a3Of3K+5xogGJ4eys8N54RP6Nvm8/umUNzgARUhOOquI8FdG5MB2y2mgimUVjoQ6MZF8wN47dGOIHQwY+ze2LTTP5+xJjlUeTbuQgi3rr8SqbSRg1BjNxHH/Lum4vLkB0qL1Qpa/Sh58WeRsDvx2TsJuitN49WW7wAgPbmecGzhdr75iQfcqP6T8rGB+COKzMmYHXtvm0Dh3zMY5Mhhu4NjU/TkeP3LLXLcUqZVzlbGaYLE1Nk9wJF3V+krjSzPM5XnA1SeBmDA0qFR3cDEeCGOFJWpXF2FNKlM4kM0MP18r+gWcsiOrKWuUm9k1s/V/C X-Bogosity: Ham, tests=bogofilter, spamicity=0.000335, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: > On 24-Nov-2023, at 2:25=E2=80=AFPM, Vlastimil Babka wrot= e: >=20 > On 11/23/23 15:35, Chengming Zhou wrote: >> On 2023/11/23 19:27, Sachin Sant wrote: >>> While booting recent -next kernel on IBM Power server, I have observed = lockups >>> either during boot or just after. >>>=20 >>> [ 3631.015775] watchdog: CPU 3 self-detected hard LOCKUP @ __update_fre= elist_slow+0x74/0x90 >>=20 >> Sorry, the bug can be fixed by this patch from Vlastimil Babka: >>=20 >> https://lore.kernel.org/all/83ff4b9e-94f1-8b35-1233-3dd414ea4dfe@suse.cz/ >=20 > The current -next should be fixed, the fix was folded to the preparatory > commit, which is now: >=20 Thanks. Yes the problem is fixed with today=E2=80=99s next. - Sachin