Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Bug 1225964

Summary: Missing sigpending syscall support on ppc64
Product: Red Hat Enterprise Linux 7 Reporter: Mark Wielaard <mjw>
Component: valgrindAssignee: Mark Wielaard <mjw>
Status: CLOSED ERRATA QA Contact: Miloš Prchlík <mprchlik>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.2CC: jakub, mbenitez, mcermak, mfranc, mprchlik
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: valgrind-3.10.0-9.el7 Doc Type: Bug Fix
Doc Text:
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
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-11-19 09:04:59 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Mark Wielaard 2015-05-28 14:43:32 UTC
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.

Comment 2 Miloš Prchlík 2015-09-23 11:50:30 UTC
Verified for build valgrind-3.10.0-16.el7.

Comment 4 errata-xmlrpc 2015-11-19 09:04:59 UTC
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