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[173.79.60.52]) by smtp.gmail.com with ESMTPSA id af79cd13be357-93eb98488aasm855431885a.7.2026.10.12.06.33.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Oct 2026 06:33:13 -0700 (PDT) Date: Mon, 12 Oct 2026 09:33:12 -0400 From: Gregory Price To: albin_yang@163.com Cc: akpm@linux-foundation.org, liam@infradead.org, ljs@kernel.org, david@kernel.org, vbabka@kernel.org, jannh@google.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, albinwyang@tencent.com Subject: Re: [PATCH] mm/madvise: add cond_resched() in THP branch of madvise_cold_or_pageout_pte_range() Message-ID: References: <20261010024042.4070048-1-albin_yang@163.com> Precedence: bulk X-Mailing-List: linux-kernel@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: <20261010024042.4070048-1-albin_yang@163.com> On Sat, Oct 10, 2026 at 10:40:42AM +0800, albin_yang@163.com wrote: > > During stress testing with stress-ng on a 256-CPU system, a softlockup > was observed when madvise(MADV_COLD) was called on a 31GB memory region > backed by transparent hugepages. The region contains 15935 THP PMD > entries, and the softlockup was triggered after 14485 of them had been > processed. > ... > > Signed-off-by: Wei Yang Reviewed-by: Gregory Price (Meta)