【1.45.2】 More error information is provided when the bottom-layer commands of the operating system fail to be invoked. #82388
Labels
A-diagnostics
Area: Messages for errors, warnings, and lints
A-runtime
Area: std's runtime and "pre-main" init for handling backtraces, unwinds, stack overflows
C-enhancement
Category: An issue proposing an enhancement or a PR with one.
T-libs-api
Relevant to the library API team, which will review and decide on the PR/issue.
There is too little confidence in this mistake, why not return to errno. The mmap interface provides the errno, such as the ENOMEM and SIGSEGV interfaces.
/rust/src/libstd/sys/unix/stack_overflow.rs:150
panic!("failed to allocate an alternative stack")
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