[all-commits] [llvm/llvm-project] 723276: [sanitizer] Suggest checking ulimit -d in addition...

[Ilya Leoshkevich via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7232763a965e1d34a14f745d74245685898e4907
      https://github.com/llvm/llvm-project/commit/7232763a965e1d34a14f745d74245685898e4907
  Author: Ilya Leoshkevich <iii at linux.ibm.com>
  Date:   2024-07-13 (Sat, 13 Jul 2024)

  Changed paths:
    M compiler-rt/lib/sanitizer_common/sanitizer_common_libcdep.cpp

  Log Message:
  -----------
  [sanitizer] Suggest checking ulimit -d in addition to ulimit -v (#98625)

Since Linux 4.7, RLIMIT_DATA may result in mmap() returning ENOMEM.
Example:

    $ clang -fsanitize=address -o hello hello.c
    $ ulimit -d 100000
    $ ./hello
==3349007==ERROR: AddressSanitizer failed to allocate 0x10000000
(268435456) bytes at address 7fff7000 (errno: 12)
==3349007==ReserveShadowMemoryRange failed while trying to map
0x10000000 bytes. Perhaps you're using ulimit -v

Suggest checking ulimit -d in addition to ulimit -v.



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