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bh=k1NnsfkLq2HnmImLt4DvLhPon1Pe+zCIYBq+XyGR0FY=; b=Qg4YBcGYpL9DGABYZpbXY74B3Ojg19jAzxfo+nYOpfEcllXDgfHhjvMPQQQyygAeSGKIu3 Mc2eDoGMvfIqGxqbthlEgQGPvXFA6DHZaprm/PPwd4kxf8h/dttI5MffqpuyvtgXXyOHVQ fdtDfFudxB73WbSu8ZVc2TTW5givvfAUb9I+cNkfuPdt2UZcxwpU6PUlZMtoNcJTOnKgBB fB9PbQajEOdX+TuVZ+UN73CXfKEAwfIe/VVeX50I0M8sn14vzppOwd1krDz5ztWj/PE/fS V3dmGK92WWQ5Upm7e12g2EGmWCVWi7kBKXLPP7F3NbwY07yTi0fQclW8dCmQqA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1731507500; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=k1NnsfkLq2HnmImLt4DvLhPon1Pe+zCIYBq+XyGR0FY=; b=MfIeSrsSxZAO22WT5Pi7FoVbFQRk5lMcLq+XH/Do9UQLMx1SqmDib6eQ37wa9YZ/1Eodre feF9z7vLPk5wHPCg== From: Sebastian Andrzej Siewior To: Peter Zijlstra Cc: Vlastimil Babka , syzbot , Liam.Howlett@oracle.com, akpm@linux-foundation.org, jannh@google.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, lorenzo.stoakes@oracle.com, syzkaller-bugs@googlegroups.com, Marco Elver , Andrey Konovalov , kasan-dev , Andrey Ryabinin , Alexander Potapenko , Waiman Long , dvyukov@google.com, vincenzo.frascino@arm.com, paulmck@kernel.org, frederic@kernel.org, neeraj.upadhyay@kernel.org, joel@joelfernandes.org, josh@joshtriplett.org, boqun.feng@gmail.com, urezki@gmail.com, rostedt@goodmis.org, mathieu.desnoyers@efficios.com, jiangshanlai@gmail.com, qiang.zhang1211@gmail.com, mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, tj@kernel.org, cl@linux.com, penberg@kernel.org, rientjes@google.com, iamjoonsoo.kim@lge.com, roman.gushchin@linux.dev, 42.hyeyoo@gmail.com, rcu@vger.kernel.org Subject: Re: [syzbot] [mm?] WARNING: locking bug in __rmqueue_pcplist Message-ID: <20241113141818.eQfGt53n@linutronix.de> References: <67275485.050a0220.3c8d68.0a37.GAE@google.com> <20241104114506.GC24862@noisy.programming.kicks-ass.net> <20241104114726.GD24862@noisy.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20241104114726.GD24862@noisy.programming.kicks-ass.net> X-Rspam-User: X-Rspamd-Queue-Id: D87502001E X-Rspamd-Server: rspam01 X-Stat-Signature: aii6b7zb8kfs48qdzcpedhpn1uhwcwz1 X-HE-Tag: 1731507482-466638 X-HE-Meta: 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 Wwkbcco5 ERxaijxJE5kQB8ykHxM3SWaUrHx8NNuJbypNMtpAKKyVMJSo+9VfJbSxTd0wxO/oEpQ8E7tOEyRN2eawtz5fnPgxYfRjI9KyaOmYzLVUZcAAD2N/REBNIx2/z2r+zrJ7IAFg4AsD4xGd9B8RGoNCT+V4YfeT6/LMTaVjGBD8/QNkBfQ+BXGSMRr0bzCurRMD9+CRrElCjXk33gj5mpfU4LIZxhWu3YrPdKguiyfbwpb9X+BCY89NsOD8SVYJ3LfxLvSRhGhUKR4LiUxVRPZj6xCv+fxhdkCGkht5MPb16Oyl/XoalpyGIVZOOPUxnRQrfqajsmvrFEJljmVl22AcLHRGukmo3qzGj8lrR X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, 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 2024-11-04 12:47:26 [+0100], Peter Zijlstra wrote: > On Mon, Nov 04, 2024 at 12:45:06PM +0100, Peter Zijlstra wrote: > > diff --git a/mm/kasan/generic.c b/mm/kasan/generic.c > > index 6310a180278b..ac9f6682bb2f 100644 > > --- a/mm/kasan/generic.c > > +++ b/mm/kasan/generic.c > > @@ -521,12 +521,12 @@ size_t kasan_metadata_size(struct kmem_cache *cache, bool in_object) > > sizeof(struct kasan_free_meta) : 0); > > } > > > > -static void __kasan_record_aux_stack(void *addr, depot_flags_t depot_flags) > > +void kasan_record_aux_stack(void *addr) > > { > > struct slab *slab = kasan_addr_to_slab(addr); > > struct kmem_cache *cache; > > struct kasan_alloc_meta *alloc_meta; > > - void *object; > > + void *object > > Clearly I'm still struggling to type ... *sigh* Should I put all this in a patch or is already been done? Sebastian