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Andrzej Siewior , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, Andrew Morton , linux-mm@kvack.org, Jakub Kicinski , Peter Zijlstra , torvalds@linux-foundation.org, x86@kernel.org, tglx@linutronix.de, bp@alien8.de, spasswolf@web.de Date: Sun, 31 Aug 2025 17:21:13 +0200 In-Reply-To: <20250831141426.2786-1-spasswolf@web.de> References: <20250831141426.2786-1-spasswolf@web.de> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.56.1-1 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:xRFyLUoaXG9yiSK3ahAh1FQokz4Bq1e7vQnShAxrWNiAP2CxhtR w02xcwxdWfycABr1VfoZX1kRk+rhFMSaxsUvwNH42W3PQPLCWhro+b4WsP74wVPdDTWrn6+ xH7oI+VPUSRf07UATlNpL3U8FVSpqtN2aP+FqWE0tKwYN9FTUr13VfaoAmgb4gkQXx2UUdA PPIsvhFNiqCHfUndwKRrQ== UI-OutboundReport: notjunk:1;M01:P0:FGDtstfTmKc=;sjaFF8xMlsOt7+D8VnyF4H5Z8d9 7zNIyn3oUuGlOzNX7Mujs22AL0pgFTmMPz7zbsENQTohFvyWjbD5n5cokvqYo5yOTEgHvEuhx 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quac7sTHnJ6qncZ1wSVPFheah0DPgBRWSls2FWMz+mmFxiPh4aHpw72ZiHbyKcB0jGy1ag56VL335jVycejKibwnReicExvfs0hbTFGncSx/ogGU0EvZYcJFhfTnViDQJv+7Et7IFEedO0gSQ364V9dm94/RJSeErY4uKZbfXYajlFVWpAbCknAQ9GPapCOqzc3mmN/teKffTlS092vUtp4VDWeXTp73j+4ZJQTY90KlYY4qn4rSLLA8kXEFGeGKWSFIcbA9LFJEPr8dWWiw810SeXgtHd7wO+84uQnDADE1+OepMKG/lkAo4NNYlZSJdBU8Y7bT2ICQtc8eYsUTQRqzvZvclRl9GxBLL+RA4KplVbDot8wbmzHNwLMzCCQQCeL3F 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: I've found the missing piece of the patch here: https://lore.kernel.org/all/175664303766.1920.13212322629796216488.tip-bot2@tip-bot2/#t diff --git a/kernel/futex/core.c b/kernel/futex/core.c index fb63c13aa66f..125804fbb5cb 100644 --- a/kernel/futex/core.c +++ b/kernel/futex/core.c @@ -1722,6 +1722,7 @@ int futex_mm_init(struct mm_struct *mm) RCU_INIT_POINTER(mm->futex_phash, NULL); mm->futex_phash_new = NULL; /* futex-ref */ + mm->futex_ref = NULL; atomic_long_set(&mm->futex_atomic, 0); mm->futex_batches = get_state_synchronize_rcu(); return 0; This solves all the mentioned Problems! Bert Karwatzki