Date: Thu, 25 Aug 2022 07:48:23 GMT From: Peter Holm <pho@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 2aba6e7aaf2f - main - stress2: Added a regression test Message-ID: <202208250748.27P7mNWY013205@gitrepo.freebsd.org>
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The branch main has been updated by pho: URL: https://cgit.FreeBSD.org/src/commit/?id=2aba6e7aaf2fa993b0983457f3055450b1495569 commit 2aba6e7aaf2fa993b0983457f3055450b1495569 Author: Peter Holm <pho@FreeBSD.org> AuthorDate: 2022-08-25 07:47:58 +0000 Commit: Peter Holm <pho@FreeBSD.org> CommitDate: 2022-08-25 07:47:58 +0000 stress2: Added a regression test --- tools/test/stress2/misc/signal2.sh | 53 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/tools/test/stress2/misc/signal2.sh b/tools/test/stress2/misc/signal2.sh new file mode 100755 index 000000000000..2cb0589f1dce --- /dev/null +++ b/tools/test/stress2/misc/signal2.sh @@ -0,0 +1,53 @@ +#!/bin/sh + +# Test scenario from: +# Bug 265889 - sys.kern.basic_signal.trap_signal_test crashes bhyve in i386 VM +# Test scenario by: Li-Wen Hsu <lwhsu@FreeBSD.org> + +cat > /tmp/signal2.c <<EOF +#include <stdio.h> +#include <signal.h> + +#include <machine/psl.h> +#define SET_TRACE_FLAG(ucp) (ucp)->uc_mcontext.mc_eflags |= PSL_T +#define CLR_TRACE_FLAG(ucp) (ucp)->uc_mcontext.mc_eflags &= ~PSL_T + +static volatile sig_atomic_t trap_signal_fired = 0; + +static void +trap_sig_handler(int signo __unused, siginfo_t *info __unused, void *_ucp) +{ + ucontext_t *ucp = _ucp; + + if (trap_signal_fired < 9) { + SET_TRACE_FLAG(ucp); + } else { + CLR_TRACE_FLAG(ucp); + } + trap_signal_fired++; +} + +int main() { + struct sigaction sa = { + .sa_sigaction = trap_sig_handler, + .sa_flags = SA_SIGINFO, + }; + + sigemptyset(&sa.sa_mask); + sigaction(SIGTRAP, &sa, NULL); + + raise(SIGTRAP); + + printf("test\n"); +} +EOF +cc -o /tmp/signal2 -Wall -Wextra -O0 -m32 /tmp/signal2.c || exit 1 + +/tmp/signal2; s=$? +for i in `jot 30`; do + /tmp/signal2 & +done > /dev/null +wait + +rm -f /tmp/signal2 /tmp/signal2.c +exit $s
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