Fall back to _SC_NPROCESSORS_ONLN if sched_getaffinity returns an empty mask #116038
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r? cuviper @bors r+ rollup |
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…iaskrgr Rollup of 7 pull requests Successful merges: - rust-lang#114379 (Command: also print removed env vars) - rust-lang#116034 (add UI test for delimiter errors) - rust-lang#116036 (tests/ui: Split large_moves.rs and move to lint/large_assignments) - rust-lang#116038 (Fall back to _SC_NPROCESSORS_ONLN if sched_getaffinity returns an empty mask) - rust-lang#116039 (Account for nested `impl Trait` in TAIT) - rust-lang#116041 (Add note to `is_known_rigid`) - rust-lang#116049 (give FutureIncompatibilityReason variants more explicit names) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#116038 - the8472:panic-on-sched_getaffinity-bug, r=cuviper Fall back to _SC_NPROCESSORS_ONLN if sched_getaffinity returns an empty mask Followup to rust-lang#115946 A gentler fix for rust-lang#115868, one that doesn't panic, [suggested on zulip](https://rust-lang.zulipchat.com/#narrow/stream/259402-t-libs.2Fmeetings/topic/Meeting.202023-09-19/near/391942927) In that situation - on the buggy kernel versions - a zero-mask means no affinities have been set so `_SC_NPROCESSORS_ONLN` provides the right value.
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Followup to #115946
A gentler fix for #115868, one that doesn't panic, suggested on zulip
In that situation - on the buggy kernel versions - a zero-mask means no affinities have been set so
_SC_NPROCESSORS_ONLNprovides the right value.