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Wed, 07 Aug 2024 12:16:02 -0400 X-MC-Unique: f71GHZWQNLuhs1Fyn0Bu0A-1 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (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-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id A2F7D19560A6; Wed, 7 Aug 2024 16:15:53 +0000 (UTC) Received: from calimero.vinschen.de (unknown [10.39.192.194]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 00E9A19560AE; Wed, 7 Aug 2024 16:15:53 +0000 (UTC) Received: by calimero.vinschen.de (Postfix, from userid 500) id 9665DA80E8E; Wed, 7 Aug 2024 18:15:50 +0200 (CEST) Date: Wed, 7 Aug 2024 18:15:50 +0200 From: Corinna Vinschen To: christopher.s.hall@intel.com Message-ID: Mail-Followup-To: christopher.s.hall@intel.com, intel-wired-lan@lists.osuosl.org, david.zage@intel.com, vinicius.gomes@intel.com, netdev@vger.kernel.org, Michal Swiatkowski , rodrigo.cadore@l-acoustics.com References: <20240807003032.10300-1-christopher.s.hall@intel.com> <20240807003032.10300-2-christopher.s.hall@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20240807003032.10300-2-christopher.s.hall@intel.com> X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1723047387; 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=fAagdNuIXlb/vJ1xLFkszZv7WfOecHpqqTnZjQT3Wm4=; b=XsEYRaY+0+jjtANTdfODuzc0ypVAgB0LRfbnxZGkWkIjle2sWW53y8l/f/l6bXPU1yAgNt dLepYNpATFBp8RRJ2rsMnA/hBv0JlJhYWnjX6GAhXFZOhQCB8IQXH/srrSKUENpn58snHB S1e0+knvNjSB8023veTQDbrw2IW/zAQ= X-Mailman-Original-Authentication-Results: smtp2.osuosl.org; dmarc=pass (p=none dis=none) header.from=redhat.com X-Mailman-Original-Authentication-Results: smtp2.osuosl.org; dkim=pass (1024-bit key, unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=XsEYRaY+ Subject: Re: [Intel-wired-lan] [PATCH iwl-net v1 1/5] igc: Ensure the PTM cycle is reliably triggered X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: david.zage@intel.com, vinicius.gomes@intel.com, netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, Michal Swiatkowski , rodrigo.cadore@l-acoustics.com Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" Hi Christopher, On Aug 6 17:30, christopher.s.hall@intel.com wrote: > From: Christopher S M Hall > > Writing to clear the PTM status 'valid' bit while the PTM cycle is > triggered results in unreliable PTM operation. To fix this, clear the > PTM 'trigger' and status after each PTM transaction. > > The issue can be reproduced with the following: > > $ sudo phc2sys -R 1000 -O 0 -i tsn0 -m > > Note: 1000 Hz (-R 1000) is unrealistically large, but provides a way to > quickly reproduce the issue. > > PHC2SYS exits with: > > "ioctl PTP_OFFSET_PRECISE: Connection timed out" when the PTM transaction > fails It would be great to add the problems encountered with kdump to the commit message as well, as discussed with Vinicius, wouldn't it? If you need a description, I can provide one. Thanks, Corinna