From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EDEA936A009 for ; Wed, 9 Sep 2026 17:14:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.133.124 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788974084; cv=none; b=HSduWusvEh5hjL1MfNVz6E1N+JG4BEvQbxk8a+KClcDowU9XesYk7NYCj4s2N7+suP/Z9YYnpBPWURXFWAFtvo3UnNEAiorknNvxjXOYFfwwAqD75vcUxhUxqoJZ426DszK1Yjy3tOoVefv7ejzGOtKxZhf7kYeXvB73DTXOduY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788974084; c=relaxed/simple; bh=AhG9uZP5Vc+oU60yw43Lea20JRbSBt/2ZAdLmmE7+58=; h=From:In-Reply-To:References:Cc:Subject:MIME-Version:Content-Type: Date:Message-ID; b=uzxohb0vuMvxSUNneCYhzQOIxcNOpN9y17aE+0JIZ3vqGu8P3JYTGQ3YUNCBcCumiRgrNJVS7hBnohfI/9zwjKoOibTVDGQd4qoVmIzz9ENl06husMa0tllzveObRVG5P1FDdRVxQANSL1EPm29UEt0rKDtBw3vCRcEiJyIgL9Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=UXiCEEPn; arc=none smtp.client-ip=170.10.133.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="UXiCEEPn" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1788974081; h=from:from:reply-to:subject:subject:date:date:message-id:message-id:to: cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=wrrcFv43Y6IitaL5MyShgfkwkQfgO8qX9JD4vZRKPPY=; b=UXiCEEPncpzJiCCPNAfiodO7745up5Bn0qCl6yZDAngcVbiBYP/Wzni8iKu/98pl80F4lA R8TbV6aKj/TgP52aUohsnfB9j4Ua35fIXXh6VF+TAUbdJIgAFW/l9YqqSaWofDWIN5grmI DeocymAzGgBYM1Zl+5PjaUgCzvLAIVE= Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-642-v8CazuleNgmALlpzy5bkZw-1; Wed, 09 Sep 2026 13:14:40 -0400 X-MC-Unique: v8CazuleNgmALlpzy5bkZw-1 X-Mimecast-MFC-AGG-ID: v8CazuleNgmALlpzy5bkZw_1788974077 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 94F59195605F; Wed, 9 Sep 2026 17:14:37 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.44.32.158]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 5422F1955F19; Wed, 9 Sep 2026 17:14:35 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <1729858.1788973986@warthog.procyon.org.uk> References: <1729858.1788973986@warthog.procyon.org.uk> <1714046.1788952509@warthog.procyon.org.uk> Cc: dhowells@redhat.com, sorenson@redhat.com, Paulo Alcantara , Jeff Layton , linux-fsdevel@vger.kernel.org, netfs@lists.linux.dev, CIFS , linux-kernel@vger.kernel.org Subject: Re: netfs_read_gaps(): aliased sink folio makes the read destination unreadable, SIGBUS on cifs with signing Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <1729916.1788974073.1@warthog.procyon.org.uk> Date: Wed, 09 Sep 2026 18:14:33 +0100 Message-ID: <1729917.1788974073@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 David Howells wrote: > + folio_unlock(bvec_folio(&bvec[sink_from])); Meh. Nevermind. There are two of them. David