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Wed, 7 Jan 2026 08:43:06 +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 dgvdNJocXmn6bAAAD6G6ig (envelope-from ); Wed, 07 Jan 2026 08:43:06 +0000 Message-ID: Date: Wed, 7 Jan 2026 09:43:06 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 2/3] mm: only interrupt taking all mm locks on fatal signal Content-Language: en-US To: Mikulas Patocka , "Liam R. Howlett" Cc: Lorenzo Stoakes , Alex Deucher , =?UTF-8?Q?Christian_K=C3=B6nig?= , Andrew Morton , David Hildenbrand , amd-gfx@lists.freedesktop.org, linux-mm@kvack.org, Jann Horn , Pedro Falcato References: <7whbqlfrwjr4z2d4bpny3rjyl5tetdyx7ccf52uvby7hgywoym@6l6m2xcytez7> <6633f8ed-f432-f4c4-3fe2-8c14248cadab@redhat.com> 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: <6633f8ed-f432-f4c4-3fe2-8c14248cadab@redhat.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: DB183160002 X-Stat-Signature: dmwpqe4wsoxkdfidknpz7cg3faojmim4 X-Rspam-User: X-Rspamd-Server: rspam06 X-HE-Tag: 1767775388-827166 X-HE-Meta: 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 DS+NykGq WYF79lgXnW1EOqksd7tC4r1jgqPDM+XA+NYadq5Y3bozhSQuNENKvMrZRRjxkRCGiJC1GLnlv+yIMkpH3xdqKwK3mpCBis97zp97B9wHxInJapg69jyZqGWzT+1W8G97FuD3NNdNQVoJhTYCJ4/sbOI1qbGjJOsRV+0s8fR5qbeQhPXGVUcES3BPuceuJ94ELrZK6lGjJp+Q5t6+Ue338lIXI2KQyFJfrVMl1hZzaXPVT7bj12HiPs+fztSjgWgkv03emsHzDYXHKwd5wAAHWOCcfPpFCxDPUzOUA 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 1/6/26 21:19, Mikulas Patocka wrote: > > OK, so I'll try to rewrite the commit message and submit version 4 of the > patch. I'd suggest (yes, it's the opposite of what Lorenzo asked for earlier, sorry) to make the necessary tools/testing/vma/vma_internal.h modification part of this patch again and not separate patch. It will remove the need to indicate it's stable dep of the fix, as it will be all self-contained. Yes, backporting to a kernel that doesn't yet have tools/testing/vma/vma_internal.h will make the patch not apply, but dropping a non-applicable hunk is trivial for stable maintainers. There will be more involved conflicts anyway due to mm_take_all_locks() moving between files. Thanks, Vlastimil > Mikulas >