games/stockfish: Update 18 => 19
Summary of changes:
+ In tests against Stockfish 18, brings an Elo gain of up to 44 points
+ Wins more than three times as many game pairs as it loses
+ This release introduces the SFNNv16 network architecture, reducing binary size
+ Increased strength by introducing new pawn-pair features
+ The secondary neural network, introduced in Stockfish 16.1, has been retired
+ stricter validation for board positions, FEN strings, and UCI commands
Release Notes:
https://stockfishchess.org/blog/2026/stockfish-19/
Changelog:
https://github.com/official-stockfish/Stockfish/releases/tag/sf_19
PR: 298289
Approved by: osa, vvd (Mentors, implicit)
games/stockfish: Update 18 => 19
Summary of changes:
+ In tests against Stockfish 18, brings an Elo gain of up to 44 points
+ Wins more than three times as many game pairs as it loses
+ This release introduces the SFNNv16 network architecture, reducing binary size
+ Increased strength by introducing new pawn-pair features
+ The secondary neural network, introduced in Stockfish 16.1, has been retired
+ stricter validation for board positions, FEN strings, and UCI commands
Release Notes:
https://stockfishchess.org/blog/2026/stockfish-19/
Changelog:
https://github.com/official-stockfish/Stockfish/releases/tag/sf_19
PR: 298289
Approved by: osa, vvd (Mentors, implicit)
amd64/arm64 pmap: consistently clear PGA_WRITEABLE
We don't consistently clear PGA_WRITEABLE on fictitious, managed pages.
Some functions do, e.g., pmap_remove_all(), but several do not. At
worst, this is just a pessimization, but there is no good reason to be
inconsistent. Clear PGA_WRITEABLE in those that previously did not by
introducing (and using) the helper function pmap_page_is_mapped_locked()
that implements the correct test.
Reviewed by: kib, markj
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D59466
amd64/arm64 pmap: consistently clear PGA_WRITEABLE
We don't consistently clear PGA_WRITEABLE on fictitious, managed pages.
Some functions do, e.g., pmap_remove_all(), but several do not. At
worst, this is just a pessimization, but there is no good reason to be
inconsistent. Clear PGA_WRITEABLE in those that previously did not by
introducing (and using) the helper function pmap_page_is_mapped_locked()
that implements the correct test.
Reviewed by: kib, markj
MFC after: 3 weeks
Differential Revision: https://reviews.freebsd.org/D59466
Merge tag 'perf-tools-fixes-for-v7.3-2026-09-07' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools fixes from Namhyung Kim:
"Two simple fixes for this cycle:
- Do not use separate debug files for Intel PT decoding
- Fix size of raw data in the PowerPC VPA DTL samples"
* tag 'perf-tools-fixes-for-v7.3-2026-09-07' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools:
perf powerpc-vpadtl: Fix raw_size of DTL samples
perf symbol: Do not use debug file as the binary type
