From owner-freebsd-current@freebsd.org Fri May 14 09:06:31 2021 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 1F9A063ECB6; Fri, 14 May 2021 09:06:31 +0000 (UTC) (envelope-from greg@unrelenting.technology) Received: from out2.migadu.com (out2.migadu.com [IPv6:2001:41d0:2:aacc::]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4FhN1d23dqz4v2L; Fri, 14 May 2021 09:06:29 +0000 (UTC) (envelope-from greg@unrelenting.technology) Date: Fri, 14 May 2021 09:06:17 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=unrelenting.technology; s=key1; t=1620983180; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=GrRhJlN+0P8fFBAVfKs+GhY66QGVaUiRj9wUCAK1I+w=; b=iw8nlLjGOnK92g1MML+hneNHQcdEDi1qsKt/vfjx4tJF7JpmIfN8aw25NnUI68BJ6fNE3N bXLOTdo6bxPYicEneISZaMPTTqsj8iG63GhNpD9aaQ4V4F3YETceqH7S1ypO/moR+t2Vy+ 3alALEcCJH00QJVPWZk1tyOBz1TnK/tRL5JI+tfcMKlqnhK4FbzFCkGK16Sk4yW82oSfyv iq6+8sZaYax0IJWnPuDjB+wE57HhQg9SoGgoQhxb+JgOm9SO3HhQ6M2TbAnF82tEOgO6do 79r2OoZjWFXbkSGd9rLQChWfSArHPadhFEjlT5MesPauXtb4WMkQi06BLSf/Zw== X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Greg V To: Mark Millard , Mark Millard via freebsd-current , freebsd-arm , freebsd-current Subject: Re: FYI for aarch64 main [14] running a mid March version: I ended up with [usb{usbus2}] stuck at (near) 100% cpu In-Reply-To: References: Message-ID: <35D1B891-3DBC-4B47-9A15-DE8E26CC2CDB@unrelenting.technology> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT X-Migadu-Auth-User: greg@unrelenting.technology X-Rspamd-Queue-Id: 4FhN1d23dqz4v2L X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=unrelenting.technology header.s=key1 header.b=iw8nlLjG; dmarc=pass (policy=none) header.from=unrelenting.technology; spf=pass (mx1.freebsd.org: domain of greg@unrelenting.technology designates 2001:41d0:2:aacc:: as permitted sender) smtp.mailfrom=greg@unrelenting.technology X-Spamd-Result: default: False [-2.88 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; R_DKIM_ALLOW(-0.20)[unrelenting.technology:s=key1]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; R_SPF_ALLOW(-0.20)[+ip6:2001:41d0:2:aacc::]; NEURAL_HAM_LONG(-1.00)[-1.000]; MIME_GOOD(-0.10)[text/plain]; NEURAL_SPAM_SHORT(0.12)[0.122]; SPAMHAUS_ZRD(0.00)[2001:41d0:2:aacc:::from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[unrelenting.technology:+]; DMARC_POLICY_ALLOW(-0.50)[unrelenting.technology,none]; FREEMAIL_TO(0.00)[yahoo.com,freebsd.org]; RCVD_COUNT_ZERO(0.00)[0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; RBL_DBL_DONT_QUERY_IPS(0.00)[2001:41d0:2:aacc:::from]; ASN(0.00)[asn:16276, ipnet:2001:41d0::/32, country:FR]; MID_RHS_MATCH_FROM(0.00)[]; MAILMAN_DEST(0.00)[freebsd-arm,freebsd-current] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 May 2021 09:06:31 -0000 On May 14, 2021 5:59:48 AM UTC, Mark Millard via freebsd-current wrote: >The [usb{usbus2}] process eventually got stuck-busy, no >more I/O: > > >The system was a MACCHIATObin Double Shot=2E I've noticed USB issues on the mcbin too=2E In my experience uaudio was the most likely thing to freeze: sometimes whe= n playing audio the whole USB stack would hang, IIRC only unplugging and re= connecting the hub would let USB I/O continue=2E Looks like the XHCI hardware might not be fully stable here?? but I do won= der if we could possibly lack some recovery mechanisms for this situation t= hat other OSes have=2E