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Tue, 3 Feb 2026 08:44:10 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id /ObcLVq1gWkucAAAD6G6ig (envelope-from ); Tue, 03 Feb 2026 08:44:10 +0000 Message-ID: <4b321435-3681-4593-a5d6-c3bbff0f31cc@suse.cz> Date: Tue, 3 Feb 2026 09:44:10 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [Kernel Bug] WARNING in mempool_alloc_noprof Content-Language: en-US To: =?UTF-8?B?5p2O6b6Z5YW0?= , syzkaller@googlegroups.com, akpm@linux-foundation.org, cl@gentwo.org, rientjes@google.com, roman.gushchin@linux.dev, harry.yoo@oracle.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org References: From: Vlastimil Babka Autocrypt: addr=vbabka@suse.cz; keydata= xsFNBFZdmxYBEADsw/SiUSjB0dM+vSh95UkgcHjzEVBlby/Fg+g42O7LAEkCYXi/vvq31JTB KxRWDHX0R2tgpFDXHnzZcQywawu8eSq0LxzxFNYMvtB7sV1pxYwej2qx9B75qW2plBs+7+YB 87tMFA+u+L4Z5xAzIimfLD5EKC56kJ1CsXlM8S/LHcmdD9Ctkn3trYDNnat0eoAcfPIP2OZ+ 9oe9IF/R28zmh0ifLXyJQQz5ofdj4bPf8ecEW0rhcqHfTD8k4yK0xxt3xW+6Exqp9n9bydiy tcSAw/TahjW6yrA+6JhSBv1v2tIm+itQc073zjSX8OFL51qQVzRFr7H2UQG33lw2QrvHRXqD Ot7ViKam7v0Ho9wEWiQOOZlHItOOXFphWb2yq3nzrKe45oWoSgkxKb97MVsQ+q2SYjJRBBH4 8qKhphADYxkIP6yut/eaj9ImvRUZZRi0DTc8xfnvHGTjKbJzC2xpFcY0DQbZzuwsIZ8OPJCc LM4S7mT25NE5kUTG/TKQCk922vRdGVMoLA7dIQrgXnRXtyT61sg8PG4wcfOnuWf8577aXP1x 6mzw3/jh3F+oSBHb/GcLC7mvWreJifUL2gEdssGfXhGWBo6zLS3qhgtwjay0Jl+kza1lo+Cv BB2T79D4WGdDuVa4eOrQ02TxqGN7G0Biz5ZLRSFzQSQwLn8fbwARAQABzSBWbGFzdGltaWwg QmFia2EgPHZiYWJrYUBzdXNlLmN6PsLBlAQTAQoAPgIbAwULCQgHAwUVCgkICwUWAgMBAAIe AQIXgBYhBKlA1DSZLC6OmRA9UCJPp+fMgqZkBQJnyBr8BQka0IFQAAoJECJPp+fMgqZkqmMQ AIbGN95ptUMUvo6aAdhxaOCHXp1DfIBuIOK/zpx8ylY4pOwu3GRe4dQ8u4XS9gaZ96Gj4bC+ jwWcSmn+TjtKW3rH1dRKopvC07tSJIGGVyw7ieV/5cbFffA8NL0ILowzVg8w1ipnz1VTkWDr 2zcfslxJsJ6vhXw5/npcY0ldeC1E8f6UUoa4eyoskd70vO0wOAoGd02ZkJoox3F5ODM0kjHu Y97VLOa3GG66lh+ZEelVZEujHfKceCw9G3PMvEzyLFbXvSOigZQMdKzQ8D/OChwqig8wFBmV QCPS4yDdmZP3oeDHRjJ9jvMUKoYODiNKsl2F+xXwyRM2qoKRqFlhCn4usVd1+wmv9iLV8nPs 2Db1ZIa49fJet3Sk3PN4bV1rAPuWvtbuTBN39Q/6MgkLTYHb84HyFKw14Rqe5YorrBLbF3rl M51Dpf6Egu1yTJDHCTEwePWug4XI11FT8lK0LNnHNpbhTCYRjX73iWOnFraJNcURld1jL1nV r/LRD+/e2gNtSTPK0Qkon6HcOBZnxRoqtazTU6YQRmGlT0v+rukj/cn5sToYibWLn+RoV1CE Qj6tApOiHBkpEsCzHGu+iDQ1WT0Idtdynst738f/uCeCMkdRu4WMZjteQaqvARFwCy3P/jpK uvzMtves5HvZw33ZwOtMCgbpce00DaET4y/UzsBNBFsZNTUBCACfQfpSsWJZyi+SHoRdVyX5 J6rI7okc4+b571a7RXD5UhS9dlVRVVAtrU9ANSLqPTQKGVxHrqD39XSw8hxK61pw8p90pg4G /N3iuWEvyt+t0SxDDkClnGsDyRhlUyEWYFEoBrrCizbmahOUwqkJbNMfzj5Y7n7OIJOxNRkB IBOjPdF26dMP69BwePQao1M8Acrrex9sAHYjQGyVmReRjVEtv9iG4DoTsnIR3amKVk6si4Ea X/mrapJqSCcBUVYUFH8M7bsm4CSxier5ofy8jTEa/CfvkqpKThTMCQPNZKY7hke5qEq1CBk2 wxhX48ZrJEFf1v3NuV3OimgsF2odzieNABEBAAHCwXwEGAEKACYCGwwWIQSpQNQ0mSwujpkQ PVAiT6fnzIKmZAUCZ8gcVAUJFhTonwAKCRAiT6fnzIKmZLY8D/9uo3Ut9yi2YCuASWxr7QQZ lJCViArjymbxYB5NdOeC50/0gnhK4pgdHlE2MdwF6o34x7TPFGpjNFvycZqccSQPJ/gibwNA zx3q9vJT4Vw+YbiyS53iSBLXMweeVV1Jd9IjAoL+EqB0cbxoFXvnjkvP1foiiF5r73jCd4PR rD+GoX5BZ7AZmFYmuJYBm28STM2NA6LhT0X+2su16f/HtummENKcMwom0hNu3MBNPUOrujtW khQrWcJNAAsy4yMoJ2Lw51T/5X5Hc7jQ9da9fyqu+phqlVtn70qpPvgWy4HRhr25fCAEXZDp xG4RNmTm+pqorHOqhBkI7wA7P/nyPo7ZEc3L+ZkQ37u0nlOyrjbNUniPGxPxv1imVq8IyycG AN5FaFxtiELK22gvudghLJaDiRBhn8/AhXc642/Z/yIpizE2xG4KU4AXzb6C+o7LX/WmmsWP Ly6jamSg6tvrdo4/e87lUedEqCtrp2o1xpn5zongf6cQkaLZKQcBQnPmgHO5OG8+50u88D9I rywqgzTUhHFKKF6/9L/lYtrNcHU8Z6Y4Ju/MLUiNYkmtrGIMnkjKCiRqlRrZE/v5YFHbayRD dJKXobXTtCBYpLJM4ZYRpGZXne/FAtWNe4KbNJJqxMvrTOrnIatPj8NhBVI0RSJRsbilh6TE m6M14QORSWTLRg== In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 9AB35100003 X-Rspam-User: X-Rspamd-Server: rspam05 X-Stat-Signature: x1zkq338gymmrejx6e4dfy73z1f8ritx X-HE-Tag: 1770108252-515018 X-HE-Meta: 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 oVYTqe3f nMH6x6/2pE1nDhbbsSZhUWVN4bfaN5+GsVoTrlK/qYh8ZdeRgZPxrF5+KTAb3Jbx2sFXUVCaJjstRTNmLeHEJcN2r9xyMaA1J/hSJCEu2olyCoLmaW/zsuYK1NT7hyVoXPgxpVJrtrx0uv/hqj33EKUfZMoOBwNQ3ABMjSoiNikbP8paT7+rrojdfKgyr9PewwrumjWDdA+NjDtvT0wEizeE1g8caJ99A9Qa5vhblkykVAty+5osRLgzmDz4k2cp65bL11mpyJSq+KsE4kUzyiVU924zaNrZOs73wfUi2hMEAK3Tu+KhMUcXYMPmbB0G9D7ki/mMTYKDN0ncSMVG4evZTsay0BV/BSryv 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 2/2/26 07:40, 李龙兴 wrote: > Dear Linux kernel developers and maintainers, > > We would like to report a new kernel bug found by our tool. WARNING in > mempool_alloc_noprof. Details are as follows. Hi, > Kernel commit: v6.12.11 that's a very old version and your reports could get dismissed - in this case you were lucky. Please use bug finding tools on recent versions. Ideally even rc kernels (now 6.19-rc7) so new bugs can be fixed before a final kernel is released. Thanks, Vlastimil