From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 C2482171AB for ; Sun, 12 Nov 2023 19:32:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=manguebit.com header.i=@manguebit.com header.b="JCYuUBs/" Received: from mx.manguebit.com (mx.manguebit.com [167.235.159.17]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 13BC19D for ; Sun, 12 Nov 2023 11:32:38 -0800 (PST) Message-ID: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=manguebit.com; s=dkim; t=1699817556; 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=3rWQfLw68vfnlROz6OW/TpEvVMHNyeFByj3/CTw9LPs=; b=JCYuUBs/p5edPL2ZB4lhGOwqUuwg6w8jKfVlAEh/eplfnHk7Eg3jqXBZAkxkRbjktFPFeB R8cYbMmRZsTe/3ojkeOLW+uklC4a7SV8vQJXIEHG7f5kl9JF/L9d7+QjsQQ9HK6Wq/4xKY QIC1nuKG/UOW2ZrG+6O4pZytn/2yfS0e+T+4VNw3N8QdsHcVqfbfsOcs4SbgIcRMyV3vOi izEvDV/cbXwzQtvzTCwh4TZIeFZr79qP6LQ4pzSiUpXhhmRQJYJjFHmb3wpXDeICwSN4ug C3xPiRt/aJ+YGejiXqUHG9vltO4vE+uvCo+4dPtll3JwBlC6G1WSv5fhfLQIMw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=manguebit.com; s=dkim; t=1699817556; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=3rWQfLw68vfnlROz6OW/TpEvVMHNyeFByj3/CTw9LPs=; b=lIe7JHJGXre+/tlGnqKxLA6Yv5Cg1GicrvaGkSdkTroxpmqIXfZPtandkCWuuhCmRiImbH BYP1nwKcy1+/dqOVU10s2mf8PD/NzDfUHZaRYTPtnQ3bvbqyRyJzUMq1Lj7Ooa7eJDuHGh VjbxHSkYWa/fBEnPl8HAOLAjOBRAIvJo12QTB9vUvZkmiVlbYuYZY9gybFT+9fZjP5rf12 caNB3tSW1SQ9fIt5VbFv6S1zdunh5NIpNanyk8BeOFEZIuj8ZiC+JFYQQCuWawRiXRCurD nqmTVGsRJaqMESq9M7cQT//B3TD4yXM0cpfGV/zbk+W9RsBn4Q6YF9lxC9LhxQ== ARC-Authentication-Results: i=1; ORIGINATING; auth=pass smtp.auth=pc@manguebit.com smtp.mailfrom=pc@manguebit.com ARC-Seal: i=1; s=dkim; d=manguebit.com; t=1699817556; a=rsa-sha256; cv=none; b=gnOfB3S5AaeOLOY85Fd+7K91hAS9/dYdLK/R7h+qIZS0sdHRmTF4ktBELqEC6uFyEP8LfA rj2a3bGCkAPCdKE3CZvrPXae013h/awzrYKUaQXzlo+zKoDFIbrPfXSKa5lWotjJ/iSQ7q hSPv2CkG1aDlw4Fm6pGzMO8AXulLodv/CSwjskqoKF1UwOTVPWRZeFrvpNszgYREs078bS GI5Oi6/kATDFI+FxhGay1PxJLkMPG5mjDrSc125tJrcHdaXgcqSI1zHOFP648bMpL+AV4s yUEX8/8udZRYZaq17cU7NfKe6CzAxCv9rpxAkkcnXL8Zne4R6sb8dtO7k4BnWg== From: Paulo Alcantara To: Steve French Cc: Shyam Prasad N , bharathsm.hsk@gmail.com, linux-cifs@vger.kernel.org, Shyam Prasad N Subject: Re: [PATCH 12/14] cifs: handle when server stops supporting multichannel In-Reply-To: References: <20231030110020.45627-1-sprasad@microsoft.com> <20231030110020.45627-12-sprasad@microsoft.com> <5890a4eec52f50b271ba8188f1ace1c9.pc@manguebit.com> <147809311fa1593993c7852e32fa52fd.pc@manguebit.com> Date: Sun, 12 Nov 2023 16:32:32 -0300 Precedence: bulk X-Mailing-List: linux-cifs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain Steve French writes: > I tried reproducing this to Windows (a little trickier than I expected > because I had to block the IPv6, not just the IPv4 addresses as in your > example). In my example (and built with the stricter kernel config you > suggested) I do see expected warning messages (although puzzled at first > why server name is blank in some debug messages - although I did mount with > IPv4 address not hostname). After reconnect I can access the mount and it > seems to work fine. You could also bring the ifaces down rather than blocking the specific IP addresses. I'd expect to see the other warnings in case you have lockdep and CONFIG_DEBUG_ATOMIC_SLEEP=y enabled. The blank hostnames are due to secondary channels being reconnected as we only set it for the primary one.