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([2403:5807:1b:1:2918:b74c:8e11:74cd]) by smtp.gmail.com with ESMTPSA id y15-20020a17090264cf00b0017b224969d6sm223957pli.76.2022.10.06.17.27.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 06 Oct 2022 17:27:14 -0700 (PDT) Message-ID: <42ae3a83-bb0b-315c-ddfd-919c109a11d2@FreeBSD.org> Date: Fri, 7 Oct 2022 11:27:06 +1100 List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-main@freebsd.org X-BeenThere: dev-commits-src-main@freebsd.org MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:107.0) Gecko/20100101 Thunderbird/107.0a1 Reply-To: koobs@FreeBSD.org Subject: Re: git: 55a3bd000d97 - main - usb(4): Make sure the enumeration thread doesn't loop too fast. Content-Language: en-US To: Hans Petter Selasky , src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org References: <202210051013.295ADf7P080520@gitrepo.freebsd.org> From: Kubilay Kocak In-Reply-To: <202210051013.295ADf7P080520@gitrepo.freebsd.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4Mk8Jh43f1z443S X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=pass header.d=gmail.com header.s=20210112 header.b="JX//y4Ia"; dmarc=none; spf=pass (mx1.freebsd.org: domain of koobs.freebsd@gmail.com designates 2607:f8b0:4864:20::629 as permitted sender) smtp.mailfrom=koobs.freebsd@gmail.com X-Spamd-Result: default: False [-3.17 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.97)[-0.965]; FORGED_SENDER(0.30)[koobs@FreeBSD.org,koobsfreebsd@gmail.com]; R_DKIM_ALLOW(-0.20)[gmail.com:s=20210112]; R_SPF_ALLOW(-0.20)[+ip6:2607:f8b0:4000::/36:c]; MIME_GOOD(-0.10)[text/plain]; FROM_NEQ_ENVFROM(0.00)[koobs@FreeBSD.org,koobsfreebsd@gmail.com]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; HAS_REPLYTO(0.00)[koobs@FreeBSD.org]; DMARC_NA(0.00)[freebsd.org]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DWL_DNSWL_NONE(0.00)[gmail.com:dkim]; ARC_NA(0.00)[]; TAGGED_FROM(0.00)[]; RCVD_IN_DNSWL_NONE(0.00)[2607:f8b0:4864:20::629:from]; REPLYTO_ADDR_EQ_FROM(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_SOME(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; DKIM_TRACE(0.00)[gmail.com:+]; MIME_TRACE(0.00)[0:+]; RCVD_TLS_LAST(0.00)[]; MID_RHS_MATCH_FROM(0.00)[]; FREEMAIL_ENVFROM(0.00)[gmail.com]; MLMMJ_DEST(0.00)[dev-commits-src-all@freebsd.org,dev-commits-src-main@freebsd.org] X-ThisMailContainsUnwantedMimeParts: N On 5/10/2022 9:13 pm, Hans Petter Selasky wrote: > The branch main has been updated by hselasky: > > URL: https://cgit.FreeBSD.org/src/commit/?id=55a3bd000d9799f431c207e359466484ac63c137 > > commit 55a3bd000d9799f431c207e359466484ac63c137 > Author: Hans Petter Selasky > AuthorDate: 2022-06-09 13:15:49 +0000 > Commit: Hans Petter Selasky > CommitDate: 2022-10-05 10:12:33 +0000 > > usb(4): Make sure the enumeration thread doesn't loop too fast. > > MFC after: 1 week > Sponsored by: NVIDIA Networking > --- > sys/dev/usb/controller/usb_controller.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/sys/dev/usb/controller/usb_controller.c b/sys/dev/usb/controller/usb_controller.c > index 0897af0492cb..959f54a4583f 100644 > --- a/sys/dev/usb/controller/usb_controller.c > +++ b/sys/dev/usb/controller/usb_controller.c > @@ -414,6 +414,9 @@ usb_bus_explore(struct usb_proc_msg *pm) > #if USB_HAVE_ROOT_MOUNT_HOLD > usb_root_mount_rel(bus); > #endif > + > + /* Nice the enumeration a bit, to avoid looping too fast. */ > + usb_pause_mtx(&bus->bus_mtx, USB_MS_TO_TICKS(16)); > } > > /*------------------------------------------------------------------------* > Is it possible to sysctl (ideally runtime tunable) this setting?