From: Peter Maydell <peter.mayd...@linaro.org> The hexloader test invokes QEMU with the -nographic argument. This is unnecessary, because the qtest_initf() function will pass it -display none, which suffices to disable the graphical window. It also means that the QEMU process will make the stdin/stdout O_NONBLOCK. Since O_NONBLOCK is not per-file descriptor but per "file description", this non-blocking behaviour is then shared with any other process that's using the stdin/stdout of the 'make check' run, including make itself. This can result in make falling over with "make: write error: stdout" because it got an unexpected EINTR trying to write output messages to the terminal. This is particularly noticable if running 'make check' in a loop with while make check; do true; done (It does not affect single make check runs so much because the shell will remove the O_NONBLOCK status before it reads the terminal for interactive input.)
Remove the unwanted -nographic argument. Signed-off-by: Peter Maydell <peter.mayd...@linaro.org> Message-Id: <20190104145018.16950-1-peter.mayd...@linaro.org> Reviewed-by: Thomas Huth <th...@redhat.com> Signed-off-by: Paolo Bonzini <pbonz...@redhat.com> --- tests/hexloader-test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/hexloader-test.c b/tests/hexloader-test.c index 834ed52c22..8b7aa2d72d 100644 --- a/tests/hexloader-test.c +++ b/tests/hexloader-test.c @@ -23,7 +23,7 @@ static void hex_loader_test(void) const unsigned int base_addr = 0x00010000; QTestState *s = qtest_initf( - "-M vexpress-a9 -nographic -device loader,file=tests/data/hex-loader/test.hex"); + "-M vexpress-a9 -device loader,file=tests/data/hex-loader/test.hex"); for (i = 0; i < 256; ++i) { uint8_t val = qtest_readb(s, base_addr + i); -- 2.20.1