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[2003:ee:973f:6100:aaa1:59ff:fee9:4020]) by smtp.gmail.com with ESMTPSA id k23-20020a05600c1c9700b0040531f5c51asm9025406wms.5.2023.11.13.11.02.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Nov 2023 11:02:27 -0800 (PST) Date: Mon, 13 Nov 2023 20:02:25 +0100 From: Andreas Kempf To: Oliver Neukum , linux-usb@vger.kernel.org Subject: Re: Slow enumeration of Creative Sound Blaster G3 Message-ID: Mail-Followup-To: Oliver Neukum , linux-usb@vger.kernel.org Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: >> On Sat, Nov 11, 2023 at 05:58:08PM +0100, Andreas Kempf wrote: >>> Hi, >>> >>> I apologize if this is the wrong mailing list but my investigation >>> led me to the USB subsystem and I do not know how to proceed. >>> >>> My system: >>> Arch Linux >>> Linux kernel 6.6.1 (-arch1-1) >>> Motherboard: ASRock X670E PG Lightning >>> Device: Creative Sound Blaster G3 >>> >>> I have a Creative Technology Sound Blaster G3 USB sound device that >>> seems to work perfectly on Windows. It used to work just fine on Linux, >>> as well. However, at some point a few weeks ago, it started behaving >>> oddly. Unfortunately, I cannot pinpoint exactly when the problems >>> started happening because the symptoms did not immediately point me >>> toward the device and I did not immediately figure out what was going >>> on as I only noticed hangs when shutting down the system. >> >> Did you update your kernel between the time when the device was >> working okay and now? > >If this is a regression the obvious suspect would be > >5fadc941d07530d681f3b7ec91e56d8445bc3825 >("ALSA: usb-audio: Fix init call orders for UAC1") > >I'd suggest you try reverting that. Thank you for the suggestion. I figure that this commit made it into 6.1.52. Arch packaged 6.1.51, so I downgraded to that and then again to 6.1.12. Both showed the issue. Somehow, the kernel version does not seem to matter. I am baffled by the whole thing as no other piece of software should be involved here, as far a I can understand. It could be some kind of hardware issue (Motherboard/Device) or an extremely weird race condition that I somehow hit all of a sudden. (I seem to have messed up my initial mutt setup for the mailing list, so I hope this reply does not completely break the thread) > > Regards > Oliver Best regards, Andreas