From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B0AE96077C95 for ; Thu, 5 Nov 2026 19:49:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=gog/LpOX; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=j23WgGy3 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Date: Content-Transfer-Encoding:Content-Type:References:In-Reply-To:Cc:To:Subject: From:Message-ID:MIME-Version:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=lQ8JIZZ5kxkUAmXk+xiS/+ArzA9TFxFnFqVMIk+xVec=; b=gog/LpOXFQWu12jdK4o2GF4fEb uu80iJVtGyUA4TeOT8i9MAn5igiZG7EVy/H4p6O2FA+iSAWSo2dQ/GZF077tOcGHw1yeJObE30aYa Om4771YDdxzUKnLOoS21UnOlN5CAc0I2+1G3mydoY0tnPlRj+TFdzP1uH3zxvCUDc2rp7AtjrzXFn f3Yh+bWt0IxoPs2BZRzco5si6zE2pjsOsmH4sncsT7Z8TPFmw34WXbvXDby6KC+CWgNeqrvFCkdT+ FpLzCB2D/sCvp3TPA1vQ+5rpRQXaQZBPoZA2AZ2/1hP0fZdmCloHfkpbeLJvdlxhKqTEmAN6qo0rY Y2Fk55rw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xP3T4-0000000APy7-1Gj1; Thu, 05 Nov 2026 19:49:50 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xP3Sn-0000000APlS-23fd for kexec@lists.infradead.org; Thu, 05 Nov 2026 19:49:34 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id E9E6260235; Thu, 5 Nov 2026 19:49:32 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C52EE1F0089F; Thu, 5 Nov 2026 19:49:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793908172; bh=lQ8JIZZ5kxkUAmXk+xiS/+ArzA9TFxFnFqVMIk+xVec=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=j23WgGy3ZqOpo9kyAHUXU5TgvkUzhD6a54kglnxcdgVHF5WgUmqLTvnUkLSBL02NN ZdW0u6lyXYxXcbzgP4wZH3y1mtnPgrg5z7WwxtjxTC0MXuUY7FZBiGNIJN33actq5M 5yEtX7ikb+TeUy83H9n+K05TTJFiakZeU4BBjUvK8gx/zO1ZuKoWzEZSfEaKAkxDJ2 KAukZAJBis282pacUrKrUpdcLpMu2c+LVBvHUNQoV0aMN6jIUx+dB0vbXhUvz3bUUN fJ/2AAVIZ6++OWfNDvCq5yu5I3y9gI6EpRYBWpZ5gmuqjIbW8UEqzGQ4UAADKdqsI3 MtbtxRO6ZwLEg== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH RESEND v2 12/26] selftests/proc: check that a faulting writer doesn't hold up removal To: "Christian Brauner" Cc: "Linus Torvalds" , "Jann Horn" , "Josef Bacik" , "Chris Mason" , "Jeff Layton" , NeilBrown , "Eric Dumazet" , "Thomas Gleixner" , "Al Viro" , "Jonathan Corbet" , "Christoph Hellwig" , "Greg Kroah-Hartman" , "Joel Granados" , "Kees Cook" , "Jan Kara" , "Jan Kara" , linux-s390@vger.kernel.org, coreteam@netfilter.org, kexec@lists.infradead.org, linux-pci@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-usb@vger.kernel.org, samba-technical@lists.samba.org, linux-m68k@lists.linux-m68k.org, linux-serial@vger.kernel.org, "Takashi Iwai" , linux-ext4@vger.kernel.org, "Chuck Lever" , tytso@mit.edu, "Heiko Carstens" , "Vasily Gorbik" , "Alexander Gordeev" , "Christian Borntraeger" In-Reply-To: <20261104-work-procfs-drivers-v2-12-245e54e87116@kernel.org> References: <20261104-work-procfs-drivers-v2-0-245e54e87116@kernel.org> <20261104-work-procfs-drivers-v2-12-245e54e87116@kernel.org> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Thu, 05 Nov 2026 19:49:30 +0000 X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sashiko-reviews@lists.linux.dev Sender: "kexec" X-Spam-Status: No, score=-10.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 X-Archived-By: > Write to /proc/scsi/scsi_debug/ from a buffer whose page is backed > by userfaultfd and remove the host while procfs copies in what is > written: >=20 > - removing the entry doesn't wait for the writer >=20 > - the write fails with -EIO once the fault is resolved >=20 > The test loads scsi_debug if it isn't there and skips without it or > without /proc/scsi. >=20 > Signed-off-by: Christian Brauner (Amutable) Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20261104-work-procf= s-drivers-v2-0-245e54e87116@kernel.org?part=3D12