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Tue, 13 May 2025 08:30:56 GMT Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 5C7752004B; Tue, 13 May 2025 08:30:56 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EA2B720049; Tue, 13 May 2025 08:30:55 +0000 (GMT) Received: from li-1de7cd4c-3205-11b2-a85c-d27f97db1fe1.ibm.com (unknown [9.111.36.26]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTPS; Tue, 13 May 2025 08:30:55 +0000 (GMT) From: "Marc Hartmayer" To: Lorenzo Stoakes Cc: Johannes Weiner , Andy Shevchenko , Baolin Wang , linux-mm@kvack.org, linux-s390@vger.kernel.org, Heiko Carstens , Zi Yan Subject: Re: page type is 0, migratetype passed is 2 (nr=256) In-Reply-To: <1fc8eb08-7e34-4b16-a08f-c81a531ec3fb@lucifer.local> References: <87wmalyktd.fsf@linux.ibm.com> <1fc8eb08-7e34-4b16-a08f-c81a531ec3fb@lucifer.local> Date: Tue, 13 May 2025 10:30:54 +0200 Message-ID: <87frh86hfl.fsf@linux.ibm.com> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Authority-Analysis: v=2.4 cv=OOUn3TaB c=1 sm=1 tr=0 ts=68230345 cx=c_pps a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17 a=IkcTkHD0fZMA:10 a=dt9VzEwgFbYA:10 a=yPCof4ZbAAAA:8 a=qFV_1G7U79d3ZsnhFI8A:9 a=QEXdDO2ut3YA:10 X-Proofpoint-ORIG-GUID: Uy_CNV_trabut2dUQBz4UeiM42Mgx3Le X-Proofpoint-GUID: hGXc7uCU9vzTl5G7IbUBsK_moJZCvSRX X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNTEzMDA3NiBTYWx0ZWRfXyW6J9uieMi34 9iCJa5A4rFaFHsL6Z8quOUvlSS9ImXfn2DfgbTnjwBYFPMkIjdvetbKjDw3G9zRgw8kaMsEUaJm nrDe0oLlb1jmR8PkqCxLmWFQUuEvMvWmJ3ueeZjJTPi4SyBw8IV2zzpNVnGZTfvsv2fp7LsM3gt M/VgSHvW6uHHi3ZsztZ0niR5eAraaZWwSlgwhqIDD2Pc1OwEx+XcyiTcyJvdHgdPfYuc7OCrQ9z khmbA6DgPY1N+7bbO78egPQvqVhGOw6bleP4xpM28timFuUSZCe3sCx2+Ltx/6WWhCOXT22CmnE Jla5IgkVJ5Vxv2efdDjl/Ut4TE4XI3fLGtFNfrhHAst1maoeM74pswUNbyJaE0RhIhggC/s8EhV d25iZMDRA177BCUVwEALXuM+HCuGwd4hzKr6Opb4KGBktNdnzHwLdTEodFo3gJRxq+FjQ0NT X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.0.736,FMLib:17.12.80.40 definitions=2025-05-12_07,2025-05-09_01,2025-02-21_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 phishscore=0 suspectscore=0 spamscore=0 lowpriorityscore=0 impostorscore=0 clxscore=1011 bulkscore=0 malwarescore=0 adultscore=0 mlxscore=0 mlxlogscore=999 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2504070000 definitions=main-2505130076 On Mon, May 12, 2025 at 05:16 PM +0100, Lorenzo Stoakes wrote: > +cc Zi > > Hi Marc, > > I noticed this same bug as reported in [0], but only for a _very_ recent > patch series by Zi, which is only present in mm-new, which is the most > unstable mm branch right now :) > > So I wonder if related or a coincidence caused by something else? > > This is triggered by the mm self-test (in tools/testing/selftests/mm, you > can just make -jXX there) transhuge-stress, invoked as: > > $ sudo ./transhuge-stress -d 20 > > The stack traces do look very different though so perhaps unrelated? Yep, I think it=E2=80=99s unrelated, but thanks for having a look! [=E2=80=A6snip=E2=80=A6]