Eric Blake wrote: > It could very well be a bug in qemu's user-mode emulation not handling > stack overflow in the same way a native program would do.
Definitely. In my experience, qemu's user-mode emulation has the following limitations: - Catching stack overflow is not supported. - ioctl() are not well supported (e.g. functions that deal with ttys). (except on arm64) - glibc iconv modules are not installed (on Debian/Ubuntu). - Spin lock tests hang. (on sparc64) - SIGILL on some instructions used by glibc for <fenv.h> functions (on powerpc*) - O_CLOEXEC is not well supported (e.g. in dup3, open). (on alpha) - The emulation of floating-point operations is broken. (on m68k) - Incorrect behaviour of floating-point exceptions. (on mips) - Quiet NaNs behave like signalling NaNs and vice versa (on mips) If you want to test catching stack overflow, you need to use qemu in system-mode emulation. Bruno
