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[2001:1c00:c32:7800:5bfa:a036:83f0:f9ec]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a6c806eaedesm223566166b.119.2024.06.07.03.19.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 07 Jun 2024 03:19:57 -0700 (PDT) Message-ID: <5d037003-a90b-4607-8eb6-6fdd5824e373@redhat.com> Date: Fri, 7 Jun 2024 12:19:56 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Hung tasks due to a AB-BA deadlock between the leds_list_lock rwsem and the rtnl mutex To: Jakub Kicinski , Andrew Lunn Cc: Linux regressions mailing list , Pavel Machek , Lee Jones , Linux LEDs , Heiner Kallweit , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, johanneswueller@gmail.com, "Russell King (Oracle)" , Genes Lists References: <9d189ec329cfe68ed68699f314e191a10d4b5eda.camel@sapience.com> <15a0bbd24cd01bd0b60b7047958a2e3ab556ea6f.camel@sapience.com> <42d498fc-c95b-4441-b81a-aee4237d1c0d@leemhuis.info> <618601d8-f82a-402f-bf7f-831671d3d83f@redhat.com> <01fc2e30-eafe-495c-a62d-402903fd3e2a@lunn.ch> <9d821cea-507f-4674-809c-a4640119c435@redhat.com> <20240606063902.776794d4@kernel.org> Content-Language: en-US, nl From: Hans de Goede In-Reply-To: <20240606063902.776794d4@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi, On 6/6/24 3:39 PM, Jakub Kicinski wrote: > On Thu, 6 Jun 2024 15:12:54 +0200 Andrew Lunn wrote: >>> So it has been almost a week and no reply from Heiner. Since this is >>> causing real issues for users out there I think a revert of 66601a29bb23 >>> should be submitted to Linus and then backported to the stable kernels. >>> to fix the immediate issue at hand. >> >> Agreed. > > Please submit.. Done: https://lore.kernel.org/linux-leds/20240607101847.23037-1-hdegoede@redhat.com/ Regards, Hans