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a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1765414538; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=nhDeDpL+0SCOROOTBZaXvoXQG8qd1ixdSD6GpEFwwk0=; b=pouFmu+JXQEsTxkMhmyfHg93NwASgE5S/s/3aQy3FspzZ91mjafu0a12Dmik4V8oCL1xjn YD33Ahq1+f0ezOsp8lnwxYWTXF0x4JZLW5L30HuwHJxr6CKRy1upJ5cMOfmccFQSLbAeLE yXoH91Dt5+nSQB7dtW3U9lQIlPXZVOY= Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 8A73860010; Thu, 11 Dec 2025 00:55:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AF3A6C4CEF1; Thu, 11 Dec 2025 00:55:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1765414537; bh=mmnJHids8+nSkIZq85Pu+urD+05j91c4LH2HRhu2rmc=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=kiwoWh4cp6k9wawe4ePdjIv69qdCmGmNg8BibmXSqvQeFYCUTdpMfqP/lzIQZjOyj XipqZU0q/YY8IES8WnOjX2pppqJfN6OjsvEViMvidylU/6azM7ySr6baLBlD+1Txxf Y4SYh1eE95mjIkL1WRNw17BMrThDZfxGofi0g8mRQp46MTXHhVlwPNu/kk1dNh5MyX TJTuDADHfTuvUhAaAYch1h+r/Zph6YzaZot7SMoG+w8bsvWXn31KjlvoCjgMR0gedV i/9F9qzEtpztZjwywrO4Dg2vDMp/qLkL6VRVr2aK6c7VjSqbvn1KavnNx4RRZQu46w JPI+I6PQtZi/Q== Message-ID: <83c42274-4c26-4a9e-8199-190336c18d79@kernel.org> Date: Thu, 11 Dec 2025 01:55:30 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [linux-next:master] [mm/hugetlb] 0e1ad0324a: WARNING:at_mm/mmu_gather.c:#tlb_finish_mmu To: Lorenzo Stoakes , kernel test robot Cc: oe-lkp@lists.linux.dev, lkp@intel.com, Andrew Morton , suschako@amazon.de, Laurence Oberman , aneesh.kumar@kernel.org, Arnd Bergmann , Jann Horn , Liam Howlett , Liu Shixin , Muchun Song , Nadav Amit , Nicholas Piggin , Oscar Salvador , Peter Zijlstra , Prakash Sangappa , Rik van Riel , Vlastimil Babka , Will Deacon , Lance Yang , linux-arch@vger.kernel.org, linux-mm@kvack.org References: <202512102246.ee3d6d07-lkp@intel.com> <3966c02a-ec07-43c4-a230-8453f000a8c4@lucifer.local> From: "David Hildenbrand (Red Hat)" Content-Language: en-US In-Reply-To: <3966c02a-ec07-43c4-a230-8453f000a8c4@lucifer.local> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 54A7B40005 X-Stat-Signature: qfjm8aeg4ra73wzymkaahukjgobaathq X-Rspam-User: X-HE-Tag: 1765414538-749017 X-HE-Meta: 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 07QgLpZI XFcj/01kqexg0l36CpSzBZ/JsHOkhB/knZ6w82rVjqLnDTArfns5XN0h2Gk3jpTGPCnGjWD/rLOa7Aq6dsf87H+/sf4jA+4eWc2nXBkbw7JMhUDFUjUTGLNy5ZeS6DSn0/XKtSvnIzC7ZZf+yhGNx4pf9UAS1f01Rk7WDLkBCJuBpck2YrpZQuyOqZ3vqQG1gdxLvyyVUzXKRI1GWMSLwdSq/JNeQH+awHmB8HC/mVtBX0z97V6U1euDjxFkOdQEKll7nPRLlYWv8tzvlPOWuR0053RSWm74Ud4PjQbmgfkzHWigFQLCVNOawv4IZ8pCP3uZVKiqAcwE0h8XXWkpNSlcfb7ulb5eSrDO3SmYRJRqo7l9mGyw8Ku8T9qcOteoMaD65xS4weE1PqG3ZXW9N9pRvZw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 12/10/25 16:02, Lorenzo Stoakes wrote: > On Wed, Dec 10, 2025 at 10:55:40PM +0800, kernel test robot wrote: >> >> >> Hello, >> >> kernel test robot noticed "WARNING:at_mm/mmu_gather.c:#tlb_finish_mmu" on: >> >> commit: 0e1ad0324aabb5aef3ef409de9a395cda7ee6098 ("mm/hugetlb: fix excessive IPI broadcasts when unsharing PMD tables using mmu_gather") >> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master > > This is the: > > VM_WARN_ON_ONCE(tlb->fully_unshared_tables); > > test case, so is likely the issue that Nadav raised where this isn't being > initialised properly so is just spuriously firing off. > Yes, I assume so. Surprised that this series is in -next already, so I didn't send a fixup out yet. Let me try doing that later today. -- Cheers David