From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f47.google.com (mail-ed1-f47.google.com [209.85.208.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E08D21EA7D2 for ; Thu, 9 Oct 2025 06:50:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.47 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759992638; cv=none; b=SNAaYqBidrzRfwmTXJgLvV8bRWPP2B4dprMreQkFSssHG87h7zZGfdcKDIKZEP/un+yrNJo7WrGdKHjpm58gKMkZTKvTJ4CYYgV+19c4LQwYOnTTIGtHBHUQIfKkgvkVlOY2AD0RKbLfxADpSg3zrMD8k++MAHiFLyzNlml54b0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759992638; c=relaxed/simple; bh=EjW0hP5FbYNYPJ9yWAHL7ZiHj76ewphEw9EXSJMEoCM=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=UhjK0Pn6FZmo6teYft+qfs8z59PMRwsHQWtcYpa+ggjzj3jUNYcBVduMmvqr8jSVE6FzaWul0Qxn7214O6KGCNtZZR+DtvL4oFmZJPZGUXAyXsDXBkS7E+BQAGN9ESrxNKyiiBCv6GhxY66HuBx0f0iS7Sa+Dh9IKiQvrW2iW5Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=mjiuAZ7F; arc=none smtp.client-ip=209.85.208.47 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="mjiuAZ7F" Received: by mail-ed1-f47.google.com with SMTP id 4fb4d7f45d1cf-6394b4ff908so1075037a12.3 for ; Wed, 08 Oct 2025 23:50:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1759992635; x=1760597435; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=9K3jcLU+F0b0kSwu1qTzDutZ00flbA5j0Seew04z2kw=; b=mjiuAZ7F62xpXe3On81FutKyYLhKQhJGETFIepDi56Ni2YuM+HLEklHiIIWFPQBvCx ZSFBb8KBLL259r19b99neKPHtpmc68FScDtiNOWqOxqcTq6qe2IEu2cY/eB1izGX/365 jovJfOqr9HKAZIdI/35KtrNqa2/1hWovRUuelmPhoonkGDs1yJxOJEkOSivIiTF09HTz 481aX2ENvo92pqUoAPmotnEkTryTPEakycWnOYczZIypgZKmhHKX8p6IebUBC5nLTUr2 gmy/wxeoQ/NM9rSs9+6KAXw93VljGyMZie/E9JWon6IwJ1PSn6DZ8hRGe17WVQpVSJ2/ 3SOg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1759992635; x=1760597435; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=9K3jcLU+F0b0kSwu1qTzDutZ00flbA5j0Seew04z2kw=; b=PRGOlUBN5jrFwhKSgkpVZQAd2jEKfq1goY2iyuW8JzeZ5r6WfNnJYCxdTCHT++Pjn4 fte4tNTwb6rt2LmybutrKqseVnhEt29XQ7l5UBX+1x6bYjPUj1F+FvcI140ERP0Y6TE9 wfaaL8tXalgjgkr0kXhrcwzsL4JFLC4ZtHgLoZejLn8U2fgowcO3sNvrA7lIAuY+yVV/ xu/YTa8Hr090r3RcHzWBI3/RCfnzPw0cDAnFXRTxQ4wBK67Kz6S7iCYlfA5RSVbzUwWQ /4mzF9RjiiBirBsPQlm5H+kNtog6F34Lz1sAkTFdILHG1qnJeFe+wHigcCqFHfVdn3WZ 76vA== X-Forwarded-Encrypted: i=1; AJvYcCXCQ7R8LPgynJ3adJ9k5R5VsXHLmZ64tlO/8ocfKgLmCmwJN7+xN+SiFxhT7SlenTYKM6DOvVyeNFJf8w==@vger.kernel.org X-Gm-Message-State: AOJu0YyOfdEOLRPsqNgltqYY9UYEw9m9yu9laNTAT4zPXy7nHI40ek5b vEl86oRyAOEpUSzcx/dmN5UDlwjrGI8dIudYFxuXSPmjfjZNdHA+cHsx X-Gm-Gg: ASbGncsOjqpDuk9VtAnOeq132fnrC5f3GvD95sxSGMmPEr5yDdxHBW/WRadaKN0ioiC IXT4cLdGv1QeqsdZn/BLeeQGa8bDDyyoeOB8vE/Fy58m0AwHtA7enwJHMJXzpymmfIAt+m1nGI4 8j2pexXVZcXZZ3PF0kQHN7SgeMLmOJvJWNZ/7Ey97I9GGJ8LsIhDUOJYZu0bniJeLMLbfljM5c8 4DitQG7RE3I89Xh6yyodMdUYD1yH4qHyxK2A15G+bVf9DlPv4r859Jz4MgxGOK1YTbamKqcjUQT JG1bPArMGMzwTfLZfAInqsLQOxUPzk4fTz813jYoOT6S/RMTIwCrv9HGdreOQIozT8+pAF6brGI Ut5kw+UFcxfV8rqRO7qSzAk3YrcaidVxWOg1yiF1eaVViYQS5PmkDeLm3LYE= X-Google-Smtp-Source: AGHT+IG8Ud5fo/RqGDQh+pFaXna1RgG6zPI71+duC2ptc9c7lcQdelbdLg9f2SiIK3mM5gHnQpaK4Q== X-Received: by 2002:a05:6402:510e:b0:633:d65a:af0e with SMTP id 4fb4d7f45d1cf-639d5c59a53mr6110460a12.28.1759992635029; Wed, 08 Oct 2025 23:50:35 -0700 (PDT) Received: from foxbook (bff184.neoplus.adsl.tpnet.pl. [83.28.43.184]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-639f3cdbec1sm1715007a12.20.2025.10.08.23.50.33 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Wed, 08 Oct 2025 23:50:34 -0700 (PDT) Date: Thu, 9 Oct 2025 08:50:30 +0200 From: Michal Pecio To: Angel4005 Cc: Bagas Sanjaya , linux-media@vger.kernel.org, linux-uvc-devel@lists.sourceforge.net, Linux Regressions , Mauro Carvalho Chehab Subject: Re: [REGRESSION] uvcvideo: Grandstream GUV3100 (2bab:0011) broken on recent kernels (including LTS) Message-ID: <20251009085030.2d360284.michal.pecio@gmail.com> In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Thu, 9 Oct 2025 06:16:48 +0700, Bagas Sanjaya wrote: > On Wed, Oct 08, 2025 at 03:56:20PM +0300, Angel4005 wrote: > > Hello, > >=20 > > I encountered regression (breakage) for the Grandstream GUV3100 > > webcam (ID 2bab:0011) in the uvcvideo driver. > >=20 > > Testing showed that the camera WORKS on kernel 6.16.8.arch3-1. > >=20 > > However, it does NOT WORK on newer kernel versions, including the > > latest stable version (6.17.1.arch1-1) and the latest LTS kernel > > version (6.12.51-1). > >=20 > > Problem: The driver finds the device but cannot start the video > > stream, resulting in an error in dmesg: =E2=80=9CNo streaming interface > > found for terminal 65535.=E2=80=9D Hi Angel4005, As you are on Arch, can you try v6.12.48 LTS from the package archive? It was released on the same day as v6.16.8 so it's hopefully good too. If you can find the exact v6.12 series release which introduced the breakage things may get easier, because there are much fewer commits to worry about between releases in those LTS series. These are the only drivers/media changes between v6.12.48 and v6.12.51: 000b2a6bed7f media: uvcvideo: Mark invalid entities with id UVC_INVALID_ENT= ITY_ID fd5d3e6b149e media: rc: fix races with imon_disconnect() effb1c19583b media: tuner: xc5000: Fix use-after-free in xc5000_release 514a519baa9e media: b2c2: Fix use-after-free causing by irq_check_work in f= lexcop_pci_remove Perhaps the first one? Consider this dmesg line: [ 363.700829] usb 1-1.3: No streaming interface found for terminal 65535. There is also a few drivers/usb changes, but I doubt they are relevant. Regards, Michal