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Cause:
Vagrind didn't recognize the sigpending system call on powerpc64
Consequence:
programs using the sigpending system call on ppc64 would generate a warning message when ran under valgrind.
Fix:
valgrind now recognizes that system call
Result:
No more warning produced when running under valgrind
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2015-2259.html
Programs using sigpending (like qemu) cannot be run on ppc64 because: WARNING: unhandled ppc64be-linux syscall: 175 The upstream patch is a simple oneliner: diff -u a/coregrind/m_syswrap/syswrap-ppc64-linux.c b/coregrind/m_syswrap/syswrap-ppc64-linux.c --- a/coregrind/m_syswrap/syswrap-ppc64-linux.c 2015-04-21 10:51:45.450216797 +0200 +++ b/coregrind/m_syswrap/syswrap-ppc64-linux.c 2015-04-21 10:27:34.916665631 +0200 @@ -988,7 +988,7 @@ LINXY(__NR_rt_sigaction, sys_rt_sigaction), // 173 LINXY(__NR_rt_sigprocmask, sys_rt_sigprocmask), // 174 -// _____(__NR_rt_sigpending, sys_rt_sigpending), // 175 + LINXY(__NR_rt_sigpending, sys_rt_sigpending), // 175 LINXY(__NR_rt_sigtimedwait, sys_rt_sigtimedwait), // 176 LINXY(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo), // 177 LINX_(__NR_rt_sigsuspend, sys_rt_sigsuspend), // 178 Support for this is already in valgrind on fedora rawhide.