From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:51678) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gldy7-0004Mb-2y for qemu-devel@nongnu.org; Mon, 21 Jan 2019 13:06:43 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gldy6-00049N-8S for qemu-devel@nongnu.org; Mon, 21 Jan 2019 13:06:43 -0500 Received: from mail-wr1-x435.google.com ([2a00:1450:4864:20::435]:42787) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gldy6-00048i-0k for qemu-devel@nongnu.org; Mon, 21 Jan 2019 13:06:42 -0500 Received: by mail-wr1-x435.google.com with SMTP id q18so24433738wrx.9 for ; Mon, 21 Jan 2019 10:06:41 -0800 (PST) Sender: Paolo Bonzini From: Paolo Bonzini Date: Mon, 21 Jan 2019 19:05:49 +0100 Message-Id: <1548093980-43088-19-git-send-email-pbonzini@redhat.com> In-Reply-To: <1548093980-43088-1-git-send-email-pbonzini@redhat.com> References: <1548093980-43088-1-git-send-email-pbonzini@redhat.com> Subject: [Qemu-devel] [PULL 18/49] tests/hexloader-test: Don't pass -nographic to the QEMU under test List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell From: Peter Maydell 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 Message-Id: <20190104145018.16950-1-peter.maydell@linaro.org> Reviewed-by: Thomas Huth Signed-off-by: Paolo Bonzini --- 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 834ed52..8b7aa2d 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); -- 1.8.3.1