From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 861FF239E7F; Fri, 3 Apr 2026 12:49:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775220555; cv=none; b=YU5RHyAgHOmJK0TtHB/mrII8y46GJr9GKRqAK8Lqk1h436Yzg+ZTmc8lU6hjGamyKcV9qlxrrnfh75mybFD/8Q4XsEpAkXxXdU7+LDRJlnZwzoRJ2nBVR9+kM2/fmjrLVyTxWFF9RG4WEFqKtwWYmn/oFX/UcalClvu0MI8whZc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775220555; c=relaxed/simple; bh=+Gmps33FngXtRV+HbcVt1uHDIEW0qTrIRlrmLWpPgxU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=uzlxQStfV5n+apwSRr7zw/iSCPyFWS21TsbtQBy/ZPtXKbsTy+FZ4X3SoyXSpvXIALKZzde0GeMlC+1VGNAv61mrtNpUqql3EoJT3G0rUBAW68zKnTFzfthhksazPdEVzQHwWBuxKeizGDn9m+AzvTToGaUswtmGfam4rbQej4I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=j1jVQVS4; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="j1jVQVS4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3EDD0C4CEF7; Fri, 3 Apr 2026 12:49:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1775220554; bh=+Gmps33FngXtRV+HbcVt1uHDIEW0qTrIRlrmLWpPgxU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=j1jVQVS4CboefT/ydBqJV/WJLRbiSr2Vlw5cdSsqh1FRxxdaSK2DnseVCQHRn4D5c LGXeGgzVX2qO2UsbBeoejZOPYqhynBoXV/x79SoyjrXKicJNo0XRMek61VwTHH0LQj W5GLKTL4ZTM+tDLloJh4lLU0shva0G4RByG9T5QY= Date: Fri, 3 Apr 2026 14:49:11 +0200 From: Greg KH To: "Korenblit, Miriam Rachel" Cc: "He, Guocai (CN)" , Thorsten Leemhuis , "Berg, Johannes" , Friend , Linux kernel regressions list Subject: Re: commit 0c4f1c02d27a880b cause a deadlock issue Message-ID: <2026040349-chowtime-freeload-5ca4@gregkh> References: <14d65103-8809-4a1b-b115-bf5f8d7110ea@leemhuis.info> <2026040331-evasion-walk-f572@gregkh> Precedence: bulk X-Mailing-List: netdev@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 Fri, Apr 03, 2026 at 12:44:48PM +0000, Korenblit, Miriam Rachel wrote: > > > > -----Original Message----- > > From: Greg KH > > Sent: Friday, April 3, 2026 2:27 PM > > To: He, Guocai (CN) > > Cc: Thorsten Leemhuis ; Korenblit, Miriam Rachel > > ; Berg, Johannes > > ; Friend ; Linux kernel > > regressions list > > Subject: Re: commit 0c4f1c02d27a880b cause a deadlock issue > > > > On Fri, Apr 03, 2026 at 11:08:46AM +0000, He, Guocai (CN) wrote: > > > No, The mainline have no this issue. > > > The changes of 0c4f1c02d27a880b is not in mainline. > > > > That does not make sense, that commit is really commit e1696c8bd005 > > ("wifi: cfg80211: stop NAN and P2P in cfg80211_leave") which is in all of the > > following releases: > > 5.10.252 5.15.202 6.1.165 6.6.128 6.12.75 6.18.14 6.19.4 7.0-rc1 > > > > confused, > > The change is indeed in mainline, but the locking situation in mainline is totally different > (that mutex does not even exist there) > Therefore, the issue is not supposed to happen in mainline. Ok, does that commit now need to be reverted from some of the stable branches? If so, which ones? thanks, greg k-h