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Fri, 21 Jun 2024 08:20:51 GMT Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8BD2320043; Fri, 21 Jun 2024 08:20:49 +0000 (GMT) Received: from smtpav05.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3FFA220040; Fri, 21 Jun 2024 08:20:48 +0000 (GMT) Received: from [127.0.0.1] (unknown [9.152.108.100]) by smtpav05.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 21 Jun 2024 08:20:48 +0000 (GMT) Message-ID: Subject: Re: [PATCH v6 32/39] s390/ptdump: Add KMSAN page markers From: Ilya Leoshkevich To: Alexander Gordeev , Alexander Potapenko , Andrew Morton , Christoph Lameter , David Rientjes , Heiko Carstens , Joonsoo Kim , Marco Elver , Masami Hiramatsu , Pekka Enberg , Steven Rostedt , Vasily Gorbik , Vlastimil Babka Cc: Christian Borntraeger , Dmitry Vyukov , Hyeonggon Yoo <42.hyeyoo@gmail.com>, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org, Mark Rutland , Roman Gushchin , Sven Schnelle Date: Fri, 21 Jun 2024 10:20:48 +0200 In-Reply-To: <20240621002616.40684-33-iii@linux.ibm.com> References: <20240621002616.40684-1-iii@linux.ibm.com> <20240621002616.40684-33-iii@linux.ibm.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.50.4 (3.50.4-1.fc39) MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: VeEapbGV6IkSc8UA2_9IOlInc0MQ5ih1 X-Proofpoint-ORIG-GUID: r7kSYJf0oRMft-JV5P--079W7nGU4PZ_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-06-21_02,2024-06-20_04,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxlogscore=999 impostorscore=0 lowpriorityscore=0 priorityscore=1501 phishscore=0 mlxscore=0 malwarescore=0 adultscore=0 suspectscore=0 spamscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2406140001 definitions=main-2406210058 X-Stat-Signature: hzq361rrdbm7hibm1f7hwey4diiao9ck X-Rspamd-Queue-Id: F339E180004 X-Rspam-User: X-Rspamd-Server: rspam08 X-HE-Tag: 1718958068-812656 X-HE-Meta: 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 q3znr45m FyEcHRSj6z99uocY9sneYhZ0fCh9zQhN0S0ntedhqT2fUzcPTYsXnINDxaPaOV65zUEin5ZQeIHaW4h3WqLsTgdf6BpshBx7XBA+IcM/7sAfZnfcCyoG8gRdgYecLMsGqdkzx971x0I6GKwSiM95lx0C8qGzS0kdQUNR7rCfmA7n4huF9DuoPi4QQtMsYTgA1q1Mo0sR7G/ztlK040IbkmauSebycsA1P66Tg2yS9GK1VRHJvBIAn7Sh//2SnDjuUdNYZ X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, 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 Fri, 2024-06-21 at 02:25 +0200, Ilya Leoshkevich wrote: > Add KMSAN vmalloc metadata areas to kernel_page_tables. >=20 > Signed-off-by: Ilya Leoshkevich > --- > =C2=A0arch/s390/mm/dump_pagetables.c | 30 ++++++++++++++++++++++++++++++ > =C2=A01 file changed, 30 insertions(+) >=20 > diff --git a/arch/s390/mm/dump_pagetables.c > b/arch/s390/mm/dump_pagetables.c > index ffd07ed7b4af..f51e5d0862a3 100644 > --- a/arch/s390/mm/dump_pagetables.c > +++ b/arch/s390/mm/dump_pagetables.c > @@ -36,6 +36,16 @@ enum address_markers_idx { > =C2=A0 VMEMMAP_END_NR, > =C2=A0 VMALLOC_NR, > =C2=A0 VMALLOC_END_NR, > +#ifdef CONFIG_KMSAN > + KMSAN_VMALLOC_SHADOW_START_NR, > + KMSAN_VMALLOC_SHADOW_END_NR, > + KMSAN_VMALLOC_ORIGIN_START_NR, > + KMSAN_VMALLOC_ORIGIN_END_NR, > + KMSAN_MODULES_SHADOW_START_NR, > + KMSAN_MODULES_SHADOW_END_NR, > + KMSAN_MODULES_ORIGIN_START_NR, > + KMSAN_MODULES_ORIGIN_END_NR, > +#endif > =C2=A0 MODULES_NR, > =C2=A0 MODULES_END_NR, > =C2=A0 ABS_LOWCORE_NR, > @@ -74,6 +84,16 @@ static struct addr_marker address_markers[] =3D { > =C2=A0#ifdef CONFIG_KASAN > =C2=A0 [KASAN_SHADOW_START_NR] =3D {KASAN_SHADOW_START, > "Kasan Shadow Start"}, > =C2=A0 [KASAN_SHADOW_END_NR] =3D {KASAN_SHADOW_END, "Kasan Shadow > End"}, > +#endif > +#ifdef CONFIG_KMSAN > + [KMSAN_VMALLOC_SHADOW_START_NR] =3D {0, "Kmsan vmalloc > Shadow Start"}, > + [KMSAN_VMALLOC_SHADOW_END_NR] =3D {0, "Kmsan vmalloc Shadow > End"}, > + [KMSAN_VMALLOC_ORIGIN_START_NR] =3D {0, "Kmsan vmalloc > Origins Start"}, > + [KMSAN_VMALLOC_ORIGIN_END_NR] =3D {0, "Kmsan vmalloc Origins > End"}, > + [KMSAN_MODULES_SHADOW_START_NR] =3D {0, "Kmsan Modules > Shadow Start"}, > + [KMSAN_MODULES_SHADOW_END_NR] =3D {0, "Kmsan Modules Shadow > End"}, > + [KMSAN_MODULES_ORIGIN_START_NR] =3D {0, "Kmsan Modules > Origins Start"}, > + [KMSAN_MODULES_ORIGIN_END_NR] =3D {0, "Kmsan Modules Origins > End"}, > =C2=A0#endif Please disregard this patch. It's not essential for the series, and also has a subtle bug: this block needs to be moved upwards, because right now { -1, NULL } overlaps [MODULES_NR]. I will resend it separately later. > =C2=A0 { -1, NULL } > =C2=A0};