From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f202.google.com (mail-pl1-f202.google.com [209.85.214.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0809012FF95 for ; Thu, 7 Mar 2024 18:33:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709836404; cv=none; b=FSHkPzwFLYKMxO4WZ0hiqblQxigDbhY59vPXEiVdE8PLDBJW6gKOc8A0l45WyPsgpa+NKJWwyr867lDnDlFYNBDI3Nu2KoSXwik171w9j3R5TBnD579E9kZGfBTWsXKxssMrkDLScC+PSuhax6jTNa3LjJdqxODxobgdPF5zbKY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709836404; c=relaxed/simple; bh=KLLXUGdLronzj3ejPe8s3lsBNaclrlbLXPaIQweRWfc=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=r0GcMSxmgnlUyXKlYDPeS4wnG0zShGcUutliPJ8QzP/Yk1Ui+KAOuyM6gCwGITK/VKboRFXhn+nHqaFFRR/v+wyakFdaYnDqVhsqrBKdw2hSixHMlcPRd0XJq246cw9N9cXYFWbQLauxtUuTRAXK6BhfdvaP+z17xN5PmEvkoc0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--rnv.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=sh0d++Lw; arc=none smtp.client-ip=209.85.214.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--rnv.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="sh0d++Lw" Received: by mail-pl1-f202.google.com with SMTP id d9443c01a7336-1dd5b840a1fso4821785ad.0 for ; Thu, 07 Mar 2024 10:33:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1709836402; x=1710441202; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=KLLXUGdLronzj3ejPe8s3lsBNaclrlbLXPaIQweRWfc=; b=sh0d++LwfEAnId/KJFWYx0SYLIkGQDWVqPRtSPKtNl6+zrYO31yi+iO3veE4pULxLE VmdC8ea/vcQd4j413tqgjC3GODt8jHDqZXUBIZZSs2FZjS67qkI4aUPwUa9fRN6R8v1s 5cfojxC/mIPdsH3w6sAJeY3WxHTxElCLewfei7zIghSAxNeyzgBEHRs70KuaIknDby7Y Tm/drFks7pDkFxG+3YtV3hBo0GwtRis3qJ/0IQfTOL8Of292bRrvYrYGWO2q4UZAkmjr K43k6kmTVPzJhKrTbVDaL6gP1E6rWLIrU2Jg8x9qay1c0mX7JbzV8qY6TbRygQBrfUL6 UG8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709836402; x=1710441202; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=KLLXUGdLronzj3ejPe8s3lsBNaclrlbLXPaIQweRWfc=; b=HnixBmJOytehW+aHXCBy0K5ipm/kG/cO0S5iDeHWyk2rXr1dRpbi3w5NW9F1twfOSc qjMbp8O74VKorzhChaqsm1lbb/fgAnv6eATaIOBzjKaY4y8V99uRCiKhP597QBckErdg Tvg3iSAXWiAVjgIiAW3aDMM+cz4k2ojlzRSAokstEVb7Da+uONVEdO1Lc1/EaRCk3xCk ONVVHFgMij8/4Bw+79fcHQbnjNC6V06wg/J6oUrBIkUxh2osKooSIgEnM+65zoFgjv5C 2YSZNpLGcddsxP3ryqQd846g1Po/iDIFnck3RfZuOahzOR3f5XDch7QEBFvDP3KbQDkx hOrw== X-Forwarded-Encrypted: i=1; AJvYcCUaEVZVhOiRR071gXppLmBg1k8ioPn2DuLR75DWg2NJTx5lC53k/nVsEv9pJv7q4OLNXsr2R4vcYPi2rjnVIK3ir2scYC8d X-Gm-Message-State: AOJu0Yx6CjYUpOFZzKeFzE5sK1myRdZ33FOkYQ9xMP4I+nwk4JOL/h79 xAJ9eBeNY2cyv9YsO4CFldGLCTFQNj7BgeFzgeaOglzXTkp2MHI7VxGtmU/64H0J0w== X-Google-Smtp-Source: AGHT+IHi0zsopCbMj/Va6mRCdbqMpzYhdNm/8OUau5xudJeT0+fgAQxWhf40kFU/pU9yCLhbT6ZeUEk= X-Received: from cos-rnv.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:81d]) (user=rnv job=sendgmr) by 2002:a17:903:2847:b0:1dd:17ee:c423 with SMTP id kq7-20020a170903284700b001dd17eec423mr4597plb.4.1709836401065; Thu, 07 Mar 2024 10:33:21 -0800 (PST) Date: Thu, 7 Mar 2024 18:33:19 +0000 In-Reply-To: <2024030457-aware-trusting-9e48@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <2024030457-aware-trusting-9e48@gregkh> X-Mailer: git-send-email 2.44.0.278.ge034bb2e1d-goog Message-ID: <20240307183319.3146300-1-rnv@google.com> Subject: Re: [PATCH 6.1 214/219] mm, kmsan: fix infinite recursion due to RCU critical section From: Arnav Kansal To: gregkh@linuxfoundation.org Cc: akpm@linux-foundation.org, bp@alien8.de, dave.hansen@linux.intel.com, dvyukov@google.com, elver@google.com, glider@google.com, hpa@zytor.com, mingo@redhat.com, patches@lists.linux.dev, quic_charante@quicinc.com, rnv@google.com, stable@vger.kernel.org, syzbot+93a9e8a3dea8d6085e12@syzkaller.appspotmail.com, tglx@linutronix.de, ovt@google.com Content-Type: text/plain; charset="UTF-8" It does not apply cleanly there. It seems to me that the commit (commit id: 5ec8e8ea8b77 "mm/sparsemem: fix race in accessing memory_section->usage") is not a bug for 5.15 or 5.10 due to the absence of relevant KMSAN bits in those branches.