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Expect lib.libc.sys.getcontext_test.setcontext_link to fail on amd64; add

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additional debugging to make the underlying problem more visible

Calling setcontext(2) on amd64 as shown in the test program is failing on
amd64, not i386, with a return code of -1 and an errno of EINVAL

Further investigation is being done in the PR to determine the root cause for
the failure

PR: 194828
Tested with the following configuration:
- amd64/i386
- 11.0-CURRENT @ r273153
- 100 times in a tight loop as root with the following commands...
-- kyua test lib/libc
-- kyua test lib/libc/sys
-- kyua test lib/libc/sys/getcontext_test
This commit is contained in:
Enji Cooper 2014-11-05 16:38:57 +00:00
parent 5ff32a6885
commit 0369b14474
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=274143
1 changed files with 14 additions and 0 deletions
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14
contrib/netbsd-tests/lib/libc/sys/t_getcontext.c
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@ -101,6 +101,13 @@ ATF_TC_BODY(setcontext_link, tc)
ucontext_t save;
volatile int i = 0; /* avoid longjmp clobbering */
#ifdef __FreeBSD__
#ifdef __amd64__
atf_tc_expect_fail("setcontext in this testcase fails on "
"FreeBSD/amd64 with rc == -1/errno == EINVAL; see PR # 194828");
#endif
#endif
for (i = 0; i < DEPTH; ++i) {
ATF_REQUIRE_EQ(getcontext(&uc[i]), 0);
@ -114,8 +121,15 @@ ATF_TC_BODY(setcontext_link, tc)
ATF_REQUIRE_EQ(getcontext(&save), 0);
#ifdef __FreeBSD__
if (calls == 0) {
int rc = setcontext(&uc[DEPTH-1]);
ATF_REQUIRE_EQ_MSG(rc, 0, "%d != 0; (errno = %d)", rc, errno);
}
#else
if (calls == 0)
ATF_REQUIRE_EQ(setcontext(&uc[DEPTH-1]), 0);
#endif
}
ATF_TP_ADD_TCS(tp)