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([2001:9e8:f113:9101:fced:7ed3:a061:c995]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-47a9b4d850dsm64826572f8f.0.2026.07.10.15.53.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 10 Jul 2026 15:53:31 -0700 (PDT) Message-ID: <84daa623-6767-437e-915b-933dbebd2e8a@gmail.com> Date: Sat, 11 Jul 2026 00:53:30 +0200 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 6.6 000/175] 6.6.144-rc1 review Content-Language: en-US To: Sasha Levin Cc: patches@lists.linux.dev, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, linux@roeck-us.net, shuah@kernel.org, patches@kernelci.org, lkft-triage@lists.linaro.org, pavel@nabladev.com, jonathanh@nvidia.com, sudipm.mukherjee@gmail.com, rwarsow@gmx.de, conor@kernel.org, hargar@microsoft.com, broonie@kernel.org, achill@achill.org, sr@sladewatkins.com, Florian Fainelli , linux-mips@vger.kernel.org, Greg Kroah-Hartman , stable@vger.kernel.org References: <20260702155115.766838875@linuxfoundation.org> <34b7e26f-df63-4523-b4d2-5de13c192a8c@gmail.com> <20260710163023.agent5-0013@kernel.org> From: Jonas Jelonek In-Reply-To: <20260710163023.agent5-0013@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Sasha, On 10.07.26 23:03, Sasha Levin wrote: > On Thu, Jul 09, 2026 at 11:45:14AM +0200, Florian Fainelli wrote: >> On ARCH_BRCMSTB using 32-bit and 64-bit ARM kernels, same build failure >> as 6.1 for MIPS: >> >> arch/mips/kernel/smp.c: In function 'stop_this_cpu': >> arch/mips/kernel/smp.c:396:2: error: implicit declaration of function >> 'rcutree_report_cpu_dead'; did you mean 'rcutree_prepare_cpu'? >> [-Werror=implicit-function-declaration] >> rcutree_report_cpu_dead(); >> ^~~~~~~~~~~~~~~~~~~~~~~ >> rcutree_prepare_cpu > The offending backport was dropped before 6.6.144 was released, so the > build failure itself is gone. > > That still leaves 6.6.y and 6.1.y without 9f3f3bdc6d9d ("MIPS: smp: > report dying CPU to RCU in stop_this_cpu()") while both trees already > ship 91840be8f710 ("irq_work: Fix use-after-free in irq_work_single() > on PREEMPT_RT"), which is what exposes the MIPS reboot hang that > 9f3f3bdc6d9d fixes. > > Jonas, could you send backports of 9f3f3bdc6d9d for 6.6.y and 6.1.y > with that adaptation? I'd rather take the author's version than adapt > it here. > Sure, I adopted it accordingly and sent patches for 6.6.y and 6.1.y. Best regards, Jonas