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[83.28.37.186]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48de0ab4f34sm14448527f8f.28.2026.10.14.13.25.00 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Wed, 14 Oct 2026 13:25:01 -0700 (PDT) Date: Wed, 14 Oct 2026 22:24:55 +0200 From: Michal Pecio To: Sean Rhodes Cc: Ulf Hansson , Arnd Bergmann , Greg Kroah-Hartman , Ricky Wu , Lee Jones , Roger Tseng , Dan Carpenter , Jisheng Zhang , linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 1/2] misc: rtsx_usb: avoid USB I/O in runtime autosuspend Message-ID: <20261014222455.10595a68.michal.pecio@gmail.com> In-Reply-To: References: <7acac70a471452a6ccf23b7ccc557f3c3861e0ad.1783352430.git.sean@starlabs.systems> <20261005103011.03175826.michal.pecio@gmail.com> <20261013142737.7b10a5b0.michal.pecio@gmail.com> <20261013143836.76ad7bf4.michal.pecio@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Tue, 13 Oct 2026 14:48:54 +0100, Sean Rhodes wrote: > > For the record, I have no issues with wakeup on insertion when the > > reader is suspend. > > I do, but only on Meteor Lake Sounds like an unrelated USB bug. > > The problem is when it goes to suspend with a card already > > inserted and doesn't wake. > > I can't replicate this at all; my "bunch" are all fine (glk through > arl, and cezanne through phoenix) Host shouldn't matter in principle. Reproduction is simple: echo 'module usbcore +p' >/proc/dynamic_debug/control # remove the card # in less than one second, this appears [38244.954611] usb 10-1: kworker/0:0 timed out or killed on ep2in len=0/8 [38244.956547] mmc0: card 0260 removed # MMC host is suspended and polling stops # for two seconds, card insertion will go unnoticed # the reader enters suspend with a card inserted [38247.021374] usb 10-1: usb auto-suspend, wakeup 1 # removing the card wakes it up [38250.163400] hub 10-0:1.0: state 7 ports 4 chg 0000 evt 0002 [38250.174416] usb 10-1: usb wakeup-resume Regards, Michal