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Wed, 04 Nov 2026 13:41:53 -0800 (PST) Received: from evo ([183.171.191.8]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ed08fdc5b9sm11951625ad.18.2026.11.04.13.41.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Nov 2026 13:41:51 -0800 (PST) From: Ambareesh Balaji To: Michal Pecio Cc: Mathias Nyman , Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] usb: xhci: Tear down host on Reset Endpoint and Set TR Dequeue timeout Date: Wed, 4 Nov 2026 21:41:35 +0000 Message-ID: <20261104214135.396018-1-ambareeshbalaji@gmail.com> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261104105003.3ca4a3ac.michal.pecio@gmail.com> References: <20261104012725.147741-1-ambareeshbalaji@gmail.com> <20261104101506.5ae19157.michal.pecio@gmail.com> <20261104093608.2642748-1-ambareeshbalaji@gmail.com> <20261104105003.3ca4a3ac.michal.pecio@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Wed, 4 Nov 2026 10:50:03 +0100, Michal Pecio wrote: > If this happens on real HW then it's a different thing. Having logs > of this anomaly would surely help untangling what happens there. > > Were you seeing these issues before 7.3? That release made changes to > the handling of URBs on disconnected devices, which caused some people > problems even in absence of host controller bugs. Makes sense, thanks for pointing that out. I'll send the logs and the xHCI trace as soon as I capture one, and I will treat it as a separate issue from this patch. Yes, I saw these hangs before 7.3 as well, so I do not think it is a 7.3 regression. I have no logs from those earlier occurrences, so I can only vouch for the symptom (the device drops off the bus and the hang needs a reboot), not that it is the same code path. Scarlett also likes to reset/disconnect with -71 and -110 errors fairly often. The kernel generally re-enumerates it, but once in a while I do see the disconnect get stuck. Regards, Ambareesh