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3 hours ago
Fix the build with -Zdirect-minimal-versions
3 hours ago
c514acb
xtqqczze:minver
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last run
7 hours ago
GNUmakefile: Do not depend on tr
7 hours ago
350d8cd
oech3:make-tr
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last run
7 hours ago
pr: apply cargo fmt
8 hours ago
d15ba7a
venoosoo:fix-pr-string-to-bytes
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last run
10 hours ago
tac: avoid mmap on regular files to prevent SIGBUS on truncation
When a file is memory-mapped and then truncated by another process
while tac is reading it, accessing the now-invalid mapped region
triggers SIGBUS and crashes the process. This is particularly
problematic for log rotation scenarios where tac might read logs
that are being rotated/truncated concurrently.
Replace the mmap-based file reading with read_to_end(), which reads
the entire file into a heap buffer. This matches how GNU tac avoids
the issue. The mmap path is retained for stdin (via temp files we
own), where external truncation is not a concern.
Fixes #9748
Co-Authored-By: Claude (claude-opus-4-6) <noreply@anthropic.com>
11 hours ago
b609db9
mango766:fix-tac-sigbus
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