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[147.75.199.223]) by mx.google.com with ESMTPS id b14-20020a05620a118e00b0077f01cf2219si1378995qkk.458.2023.12.07.07.26.13 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 07 Dec 2023 07:26:13 -0800 (PST) Received-SPF: pass (google.com: domain of linux-nfs+bounces-385-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) client-ip=147.75.199.223; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=LExgvIrv; spf=pass (google.com: domain of linux-nfs+bounces-385-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.199.223 as permitted sender) smtp.mailfrom="linux-nfs+bounces-385-linux.lists.archive=gmail.com@vger.kernel.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ny.mirrors.kernel.org (Postfix) with ESMTPS id 2C17C1C2087D for ; Thu, 7 Dec 2023 15:25:39 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 06AF5125C5; Thu, 7 Dec 2023 15:25:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="LExgvIrv" X-Original-To: linux-nfs@vger.kernel.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 52EC510C8 for ; Thu, 7 Dec 2023 07:25:34 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1701962733; 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; bh=F+UERlAVBNrKhIpPSImkkZ/r+K7X+hTRoCxWoekUWYs=; b=LExgvIrvZgA+1Up2cVhDYo3G2Ym73uDj1k9VHj4pjYXRbW7/QUxObQBFZJLjSrTSNfMpmg 1stdj3YM2Psk7qpI0vrKeL0s0aJSb3zuHjEYkOUGTI8BMJ7qXvzrEhOvjnjhyI5JaLpUnW pQn03Ui7v2xJYjVWil1GmicBArJpex8= Received: from mimecast-mx02.redhat.com (mx-ext.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-82-fsfq9tK2PH6fCBfkDN1WVw-1; Thu, 07 Dec 2023 10:25:30 -0500 X-MC-Unique: fsfq9tK2PH6fCBfkDN1WVw-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (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 mimecast-mx02.redhat.com (Postfix) with ESMTPS id EED103C2865F; Thu, 7 Dec 2023 15:25:28 +0000 (UTC) Received: from [100.85.132.103] (unknown [10.22.48.3]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 86B042166B35; Thu, 7 Dec 2023 15:25:28 +0000 (UTC) From: Benjamin Coddington To: Trond Myklebust Cc: Linux NFS Mailing List Subject: spurious backchannel -ETIMEDOUT and reset on v6.7-rc1 Date: Thu, 07 Dec 2023 10:25:27 -0500 Message-ID: <3B324BE9-874E-487E-B6E4-E83889B30803@redhat.com> Precedence: bulk X-Mailing-List: linux-nfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Hey Trond, I've been noticing slower than usual xfstests, and in the logs: "RPC: Could not send backchannel reply error: -110" Since "59464b262ff5 SUNRPC: SOFTCONN tasks should time out when on the sending list", some backchannel reqs will immediately reset the connection if they need to sleep on ->sending in xprt_reserve_xprt. I don't think we set up rq_timeout and rq_majortimeout for backchannel reqs, so they immediately fail with -ETIMEDOUT. I'm hunting around for the best fix, but maybe you've got one I can test. Ben