[LLVMbugs] [Bug 22025] New: [ASan/Win] Creating a suspended thread leads to a deadlock

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Wed Dec 24 06:46:58 PST 2014


            Bug ID: 22025
           Summary: [ASan/Win] Creating a suspended thread leads to a
           Product: compiler-rt
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P
         Component: compiler-rt
          Assignee: unassignedbugs at nondot.org
          Reporter: timurrrr at google.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Example code:
#include <windows.h>

DWORD WINAPI thread_proc(void *) {
  volatile char stack_buffer[42];
  for (int i = 0; i < sizeof(stack_buffer); ++i)
    stack_buffer[i] = 42;
  return 0x42;

int main() {
  DWORD exitcode;
  HANDLE thr = CreateThread(NULL, 0, thread_proc, NULL, CREATE_SUSPENDED,
  if (thr == 0)
    return 1;
  if (WAIT_OBJECT_0 != WaitForSingleObject(thr, INFINITE))
    return 2;

  GetExitCodeThread(thr, &exitcode);
  if (exitcode != 0x42)
    return 3;

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