From mboxrd@z Thu Jan 1 00:00:00 1970 From: Li Wang Date: Sat, 7 Nov 2015 20:28:17 +0800 Subject: [LTP] [PATCH] signal: add new testcase signal06.c Message-ID: <1446899297-8052-1-git-send-email-liwang@redhat.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ltp@lists.linux.it Regression test for kernel commit: commit df24fb859a4e200d9324e2974229fbb7adf00aef Author: Oleg Nesterov Date: Tue Sep 2 19:57:17 2014 +0200 commit 66463db4fc5605d51c7bb81d009d5bf30a783a2c Author: Oleg Nesterov Date: Tue Sep 2 19:57:13 2014 +0200 Signed-off-by: Li Wang --- runtest/ltplite | 1 + runtest/stress.part3 | 1 + runtest/syscalls | 1 + testcases/kernel/syscalls/signal/Makefile | 2 + testcases/kernel/syscalls/signal/signal06.c | 148 ++++++++++++++++++++++++++++ 5 files changed, 153 insertions(+) create mode 100644 testcases/kernel/syscalls/signal/signal06.c diff --git a/runtest/ltplite b/runtest/ltplite index aaa5c73..f2c9dcf 100644 --- a/runtest/ltplite +++ b/runtest/ltplite @@ -840,6 +840,7 @@ signal02 signal02 signal03 signal03 signal04 signal04 signal05 signal05 +signal06 signal06 sigpending02 sigpending02 diff --git a/runtest/stress.part3 b/runtest/stress.part3 index 63505ec..36bb16f 100644 --- a/runtest/stress.part3 +++ b/runtest/stress.part3 @@ -744,6 +744,7 @@ signal02 signal02 signal03 signal03 signal04 signal04 signal05 signal05 +signal06 signal06 sigpending02 sigpending02 diff --git a/runtest/syscalls b/runtest/syscalls index 958f66e..cfbcbea 100644 --- a/runtest/syscalls +++ b/runtest/syscalls @@ -1143,6 +1143,7 @@ signal02 signal02 signal03 signal03 signal04 signal04 signal05 signal05 +signal06 signal06 signalfd01 signalfd01 diff --git a/testcases/kernel/syscalls/signal/Makefile b/testcases/kernel/syscalls/signal/Makefile index bd617d8..46885db 100644 --- a/testcases/kernel/syscalls/signal/Makefile +++ b/testcases/kernel/syscalls/signal/Makefile @@ -21,3 +21,5 @@ top_srcdir ?= ../../../.. include $(top_srcdir)/include/mk/testcases.mk include $(top_srcdir)/include/mk/generic_leaf_target.mk + +signal06: CFLAGS+=-O2 -lpthread diff --git a/testcases/kernel/syscalls/signal/signal06.c b/testcases/kernel/syscalls/signal/signal06.c new file mode 100644 index 0000000..166d33c --- /dev/null +++ b/testcases/kernel/syscalls/signal/signal06.c @@ -0,0 +1,148 @@ +/* + * Copyright (c) 2015 Author: Oleg Nesterov + * Modify: Li Wang + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * you should have received a copy of the GNU General Public License along + * with this program; if not, write the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +/* + * Description: + * These below commits fix the issue on v3.17-rc3-3 stable kernel: + * + * commit df24fb859a4e200d9324e2974229fbb7adf00aef + * Author: Oleg Nesterov + * Date: Tue Sep 2 19:57:17 2014 +0200 + * + * commit 66463db4fc5605d51c7bb81d009d5bf30a783a2c + * Author: Oleg Nesterov + * Date: Tue Sep 2 19:57:13 2014 +0200 + * + * Reproduce: + * Test-case (needs -O2). + */ + +#include +#include +#include +#include +#include +#include +#include + +#include "test.h" + +char *TCID = "signal06"; +int TST_TOTAL = 5; + +#if __x86_64__ + +volatile double D; +int FLAGE; + +char altstack[4096 * 10] __attribute__((aligned(4096))); + +void test(double d) +{ + int loop = 1; + int pid = getpid(); + + D = d; + while (D == d && loop < 10000) { + /* sys_tkill(pid, SIGHUP); asm to avoid save/reload + * fp regs around c call */ + asm ("" : : "a"(200), "D"(pid), "S"(1)); + asm ("syscall" : : : "ax"); + + loop++; + } + + FLAGE = 1; + tst_resm(TINFO, "loop = %d", loop); + + if (loop == 10000) { + tst_resm(TPASS, "%s call succeeded", TCID); + } else { + tst_resm(TFAIL, "Bug Reproduced!"); + exit(-1); + } +} + +void sigh(int sig LTP_ATTRIBUTE_UNUSED) +{ +} + +void *tfunc(void *arg LTP_ATTRIBUTE_UNUSED) +{ + FLAGE = 0; + + for (; ;) { + mprotect(altstack, sizeof(altstack), PROT_READ); + mprotect(altstack, sizeof(altstack), PROT_READ|PROT_WRITE); + + if (FLAGE == 1) + return NULL; + } +} + +int main(int ac, char **av) +{ + int i, lc, res; + pthread_t pt; + + stack_t st = { + .ss_sp = altstack, + .ss_size = sizeof(altstack), + .ss_flags = SS_ONSTACK, + }; + + struct sigaction sa = { + .sa_handler = sigh, + }; + + tst_parse_opts(ac, av, NULL, NULL); + + for (lc = 0; TEST_LOOPING(lc); lc++) { + tst_count = 0; + + for (i = 0; i < TST_TOTAL; i++) { + + sigaction(SIGSEGV, &sa, NULL); + sigaltstack(&st, NULL); + sa.sa_flags = SA_ONSTACK; + sigaction(SIGHUP, &sa, NULL); + + res = pthread_create(&pt, NULL, tfunc, NULL); + if (res) { + tst_brkm(TBROK, NULL, "pthread_create(): %s", + tst_strerrno(res)); + } + + test(123.456); + + res = pthread_join(pt, NULL); + if (res) + tst_brkm(TBROK, NULL, "pthread_join(): %s", + tst_strerrno(res)); + + } + } + + tst_exit(); +} + +#else +int main(void) +{ + tst_brkm(TCONF, NULL, "Only test on x86_64."); +} +#endif -- 1.8.3.1