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Howlett" , Lorenzo Stoakes , Michal Hocko , Mike Rapoport , Suren Baghdasaryan , Vlastimil Babka , Heiko Carstens , Vasily Gorbik Subject: Re: [PATCH v11 00/15] unwind_deferred: Implement sframe handling Message-ID: <20251022175855.383f4148@gandalf.local.home> In-Reply-To: <20251022133932.5e8b419d3525da07453b137d@linux-foundation.org> References: <20251022144326.4082059-1-jremus@linux.ibm.com> <20251022133932.5e8b419d3525da07453b137d@linux-foundation.org> X-Mailer: Claws Mail 3.20.0git84 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Session-Marker: 726F737465647440676F6F646D69732E6F7267 X-Session-ID: U2FsdGVkX18I+F+bKdHr/1KWa9dV4J918j6i3JKGfmQ= X-HE-Meta: U2FsdGVkX1+6Dwf/frnjEfjO+nympxtkiyuuKnisUQHr0Ev92Yu80CM0iT0usvlkaJZYGaIje1yrwxXmuC/2UwH2bLBFlm4aEftY60JIyC8Po8JN8XT+0XN9xMhK7T0Yc3dOEkK+DfC9KY0c8XFYcSLHVLGR/rPlrif/jrS7eiW/K4a5BqbVunBK4ORQ5r4o77YidFgjWtBjWG02uaglaCLPKbMNmlv70EX7LsB03TgsAleK8nBQOzgx3Dr5xk81Qq3N94MBUCR5kAGVuGm3DmJNBLoAdeykzbNvVJugFbhOt8fkmMkVkAkA/HVBssjta7TFaiiBrjbrpMnHdPNR9SvdxAqZSyzwa5E78Php+ZvqWajXvn4KcUbGfIlAtwcqbuaXmHDan4QPGEMhnQ0oTg== X-Rspam-User: X-HE-Tag-Orig: 1761170310-477037 X-Rspamd-Queue-Id: 9E64C20006 X-Rspamd-Server: rspam03 X-Stat-Signature: eq8tx7ksb5zojf5j5358uqdb168sqn1a X-HE-Tag: 1761170323-870371 X-HE-Meta: U2FsdGVkX19oPgMEHjzpOqRRhlmkrpH/DpIxZIuqV6l/n8z6IbDTwSTHbVgp3CdIQ66/cguLkbzAkVaAqJ1c6C/X+2J3IoSl3tKQ1eGRIv7dTOiJ6BGSSadZnjmt1/S8w0Q0x0+fWgeqridUjhhlyxVyMhpKh9y7AVckX1HFthXTrPrAoXdJwkksTqZcXwKa3386hYvFwJ5EHX12NxzPiMkQVOfvSexPeZhV80nTZMD0GaWTz761VPocDIvxb6fHLIDt0R5sMOO6hexZhGulOJALTX7f0L5/LIrpR4uTzQDP/TR5dcKkjzp9MzSzW4/0BbFaQFUYz0B5koJZARwxA6sLVLoH18Q8bfe/qmBAog1Si0nuvZcnSHkiuRroVzwitlzmp/gA56GP+UXy1VWKbkwU7HTa51U8+j20TROCdy9C36P2XgYnzlH2EcshfLl4G8DdNdTjWOZplirVzvuTl2HgXZDYLAs634w7tvlwqPpU0QZB+lHPBAUcSqbd3UDJ3edD5I9+PPT7kF6+ymacZ4m+1PaiXU+4PSl0aTNLCiKB7aH71MrTKx7WSZP1eGiYdTXYfsZSh7qRkxAI8yWmuqqOU/3YeryihFKhfP6jM5/5rF/6FkXJhtVgIbO2bIH7N+gUVQ7i9HinKm3rZyqlMKKvPd9xjk8vXMVmw+Hu0M5o41KjTsPecQ7hlIXTvSMQmepAx4+Er4DUvbo85xS3NhF+96FunpRX/qMtIDBtu6hNQS73PoR3AXdK2CJtSP8cPOcPRYgkwTlPFE+BymbAAdKrkTrsQYFEfe/OHXB9cqBxkiVd3zMXR6Uul93Ia6lTvzvCEJ7iC2+0Fv6zSI0oBZLYmuSxm9DwOhQ6QJpZrW8I2bGF/ohUO+LMXIoGvZdhfIxtnbgQ6anvRJvQ/7OmHQcFjVbD4E/XRyD3OP88E6iuheJbnJ6GDobZV0EfchPoNv/ocoEDW9d2cnCUlBf GnAQ5xgh cEauB61kOsw9FkV2fmmF7Rt2j9imRZPakKjnt36VjZ9ozLGJVAXsj/5E+Lms8hAxEZUI5 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 Wed, 22 Oct 2025 13:39:32 -0700 Andrew Morton wrote: > On Wed, 22 Oct 2025 16:43:11 +0200 Jens Remus wrote: > > > This is the implementation of parsing the SFrame section in an ELF file. > > Presently x86_64-only, it seems. Can we expect to see this implemented > for other architectures? Yes, and Jens is here to port it to the s390 :-) Currently Peter Zijlstra and I are updating the deferred unwinder. Jens is working on getting sframes to work with it. His interest is getting it for s390 whereas ours is for x86. > > Would a selftest for this be appropriate? To give testers some way of > exercising the code and make to life better for people who are enabling > this on other architectures. Yes we should definitely have selftests. But we are far from getting there. One requirement is that the toolchain used to build the test must support adding sframes. > > In what tree do you anticipate this project being carried? > It will likely go between tip or my tree. -- Steve