From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BE643C43381 for ; Sat, 16 Feb 2019 19:48:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8004721A4C for ; Sat, 16 Feb 2019 19:48:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kroah.com header.i=@kroah.com header.b="liMRL9Kh"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="W4oWlprQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732893AbfBPTsD (ORCPT ); Sat, 16 Feb 2019 14:48:03 -0500 Received: from out2-smtp.messagingengine.com ([66.111.4.26]:36161 "EHLO out2-smtp.messagingengine.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730086AbfBPTsD (ORCPT ); Sat, 16 Feb 2019 14:48:03 -0500 Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailout.nyi.internal (Postfix) with ESMTP id 5C11620F12; Sat, 16 Feb 2019 14:48:02 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute6.internal (MEProxy); Sat, 16 Feb 2019 14:48:02 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kroah.com; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=fm3; bh=RunhRhXMrYdZMzT9X1durEBXRYA YBuiNhzwGGT6gkd0=; b=liMRL9KhoaYzN2AWuSHmieOfZ14+9NNPGcXBKue3RNT gYBjwVV1s5La86MKqtLlhCtbryYHc0Fk1yhKzmC03scRMx6Xf4HCEhKDvoEqNHV5 yxFnN1eSxrdgNmupXeYh7qF+xl9pITqu+SVM3PwrYCrfUOZfOz2K+3bb/9QB0qKh OsM5YJC8IJ3ey8WImPcTZI3W2azxnRoO6rpLV3Z6vvuOc+7p1ITtMEuSp63fu29e ofnOf7Mh6TCEBwbzH3wHADSMf/GYR+E+8Qnvrhf047qQ35xPYLqwWtRylp5aXbVp yLz+J1NSLNkCPulvpo6mHENeyYDyltl0XCjQ7bzE/0w== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to:x-me-proxy :x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s=fm2; bh=RunhRh XMrYdZMzT9X1durEBXRYAYBuiNhzwGGT6gkd0=; b=W4oWlprQDFBtg2wvhjDPKh q1vy1pkFp3ATBXNh76yAdUaSHizCgX+iRb6VN0LQ6ZEa9cuXG6SHJa0zSrQB8NBz xt5p57aUjhFQkfjdfaUmFzSitkRGTnMWJsY0SSEGFEpjX2WuANbaQuX5j7cdoDSj nnelKatI51Np/UVH7QpYJuPXdnPtIVG+vfjom0xmjTwQqxkmXx9ePcZoz307IKG/ P/Sow/0EG09EdsEoVkeLu35+q4X3Pfft8RRk8d7KG/g/rqbaQAW0+vhShHZVEHru p1vHxtD1qm0MdHSBF6xJI99pby1Ht9iA38vJf3PzDwZ5co83Bg92pV8Xrs7UFkWQ == X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedtledruddtledgudefvdcutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfhuthenuceurghilhhouhhtmecu fedttdenucenucfjughrpeffhffvuffkfhggtggujggfsehttdertddtredvnecuhfhroh hmpefirhgvghcumffjuceoghhrvghgsehkrhhorghhrdgtohhmqeenucfkphepuddtledr jedrieegrdduleenucfrrghrrghmpehmrghilhhfrhhomhepghhrvghgsehkrhhorghhrd gtohhmnecuvehluhhsthgvrhfuihiivgeptd X-ME-Proxy: Received: from localhost (19.64.7.109.rev.sfr.net [109.7.64.19]) by mail.messagingengine.com (Postfix) with ESMTPA id 2FEC5E4511; Sat, 16 Feb 2019 14:48:00 -0500 (EST) Date: Sat, 16 Feb 2019 20:47:58 +0100 From: Greg KH To: Nix Cc: johan@kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: 4.20.7: pl2303 not working (post-4.19 regression) (limited info so far, not yet bisected) Message-ID: <20190216194758.GA10756@kroah.com> References: <87o97bu2bt.fsf@esperi.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <87o97bu2bt.fsf@esperi.org.uk> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Feb 16, 2019 at 04:26:30PM +0000, Nix wrote: > So I just tried to connect up to my ancient Soekris firewall's serial > console to try to bisect a problem where it stopped booting in 4.20, and > found I couldn't. > > minicom says: > > minicom: cannot open /dev/ttyUSB0: Input/output error > > and in the dmesg we see > > [705576.028170] pl2303 ttyUSB0: failed to submit interrupt urb: -28 > > Booting to 4.19, everything works fine. (A random GalliumOS Chromebook > running 4.9.4 works fine too, not that that confirmation is terribly > useful.) > > This is an extremely preliminary report in case it's instantly obvious > what's going on: I'll do enough investigation to produce an actually > useful bug report, including bisecting this, after I've bisected the > *other* non-booting bug, but that might not be until next weekend. (All > this for a firewall I was trying to decommission! bah :) ) bisection would be great, thanks! greg k-h