Status: Untriaged
Owner: ----
CC: [email protected], [email protected], [email protected]
Labels: Type-Bug Priority-Medium
New issue 4142 by [email protected]: "MemorySanitizer can not mmap the
shadow memory" error on v8_linux64_msan_rel
https://code.google.com/p/v8/issues/detail?id=4142
Seen here:
https://codereview.chromium.org/1154833002/
http://build.chromium.org/p/tryserver.v8/builders/v8_linux64_msan_rel/builds/4
Command: out/Release/d8 --test --random-seed=-1039056793 -e "function foo()
{ "use strict"; var x = ++private; } " --throws
Run #1
Exit code: 77
Result: FAIL
Expected outcomes: PASS
Duration: 00:00:012
Stderr:
FATAL: Cannot protect memory range 0x000000000000 - 0x1fffffffffff.
FATAL: MemorySanitizer can not mmap the shadow memory.
FATAL: Make sure to compile with -fPIE and to link with -pie.
FATAL: Disabling ASLR is known to cause this error.
FATAL: If running under GDB, try 'set disable-randomization off'.
==14360==Process memory map follows:
0x000000000000-0x200000000000
0x7f6fe8dae000-0x7f6fe9200000
0x7f6fe9300000-0x7f6fe9400000
0x7f6fe94bf000-0x7f6fe967a000 /lib/x86_64-linux-gnu/libc-2.19.so
...
This is weird because the memory map shows an existing anonymous mapping at
the lower 32Tb, which is a footprint of MSan. Are we trying to initialize
twice somehow? Evgeniy, have you seen this before?
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