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Peter Anvin" , Linux Kernel Mailing List , Linux Next Mailing List , willy@infradead.org, yi.zhang@huawei.com, jack@suse.cz, tytso@mit.edu, linux-ext4@vger.kernel.org Subject: Re: linux-next: build failure after merge of the tip tree In-Reply-To: <0d21783c-5299-4488-9708-def0b1a4dcbe@sirena.org.uk> Date: Thu, 12 Mar 2026 21:13:47 +0530 Message-ID: References: <1e549c32-ea40-40a1-a0bd-0ee87652ad21@sirena.org.uk> <20260311103743.GK606826@noisy.programming.kicks-ass.net> <20260311160904.GP606826@noisy.programming.kicks-ass.net> <0d21783c-5299-4488-9708-def0b1a4dcbe@sirena.org.uk> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mark Brown writes: > On Wed, Mar 11, 2026 at 05:09:04PM +0100, Peter Zijlstra wrote: >> On Wed, Mar 11, 2026 at 08:03:50PM +0530, Ojaswin Mujoo wrote: >> > On Wed, Mar 11, 2026 at 11:37:43AM +0100, Peter Zijlstra wrote: > >> > I believe this issue is resolved with [1]. However, I think this might >> > not be the same as the issue reported originally as we the original >> > issue seems to be in mballoc-tests rather than extent-tests. I'll try to >> > look into it a bit more. > >> > [1] https://lore.kernel.org/linux-ext4/5bb9041471dab8ce870c191c19cbe4df57473be8.1772381213.git.ritesh.list@gmail.com/ > >> I can confirm that solves the KASAN splat; it also cures the defconfig >> hang that was initially mis-attributed to the mutex patch, but turned >> out to be memory corruption due to that issue KASAN found. > >> FWIW: > >> Tested-by: Peter Zijlstra (Intel) > > Yes, that seems to work for me too - looks like tip just triggers it > more aggressively for some reason: > > Tested-by: Mark Brown Thanks Mark, Peter & Ojaswin for testing. ++linux-ext4 so that if someone observes the same issue in ext4 kunit tests, they could find this discussion on linux-ext4. -ritesh