Bug 1078590
| Summary: | use of tls with libvirt.so can leave zombie processes | |||
|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Eric Blake <eblake> | |
| Component: | libvirt | Assignee: | Michal Privoznik <mprivozn> | |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> | |
| Severity: | unspecified | Docs Contact: | ||
| Priority: | unspecified | |||
| Version: | 7.0 | CC: | dyuan, eblake, jdenemar, mzhan, rbalakri, tdosek, vivianzhang, ydu, zhwang | |
| Target Milestone: | rc | Keywords: | Upstream, ZStream | |
| Target Release: | --- | |||
| Hardware: | Unspecified | |||
| OS: | Unspecified | |||
| Whiteboard: | ||||
| Fixed In Version: | libvirt-1.2.7-1.el7 | Doc Type: | Bug Fix | |
| Doc Text: |
A previous update introduced an error where a SIG_SETMASK argument was incorrectly replaced by a SIG_BLOCK argument after the poll() system call. Consequently, the SIGCHLD signal could be permanently blocked, which caused signal masks not to return to their original values and defunct processes to be generated. With this update, the original signal masks are restored as intended, and poll() now functions correctly.
|
Story Points: | --- | |
| Clone Of: | 1078589 | |||
| : | 1112689 (view as bug list) | Environment: | ||
| Last Closed: | 2015-03-05 07:32:59 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: | ||||
| Bug Depends On: | 1078589 | |||
| Bug Blocks: | 1112689 | |||
|
Description
Eric Blake
2014-03-19 23:08:42 UTC
verify this issue on build
libvirt-1.2.8-9.el7.x86_64
qemu-img-rhev-2.1.2-14.el7.x86_64
1. Preapre the tls env with 2 servers (one is client and the other is server)
Make sure you could remote tls from client to server
# virsh -c qemu+tls://server/system
2. Install perl-Sys-Virt-1.2.8-3.el7.x86_64 on libvirt client
3. On client, run libvirt-perl.pl as comments 4
4.[root@client ~]# perl libvirt-perl.pl
init... pid=12300
while...
fork 1
end... pid=12301
receive chld
fork 2
end... pid=12302
receive chld
connection open
fork 3
end... pid=12303
receive chld
fork 4
end... pid=12304
receive chld
go next...
while...
fork 1
end... pid=12305
receive chld
fork 2
end... pid=12306
receive chld
connection open
fork 3
end... pid=12307
receive chld
fork 4
end... pid=12308
receive chld
go next...
while...
fork 1
end... pid=12309
receive chld
fork 2
end... pid=12310
receive chld
connection open
fork 3
end... pid=12311
receive chld
fork 4
end... pid=12312
receive chld
go next...
while...
fork 1
end... pid=12313
receive chld
fork 2
end... pid=12314
receive chld
connection open
fork 3
end... pid=12315
receive chld
fork 4
end... pid=12316
receive chld
go next...
while...
fork 1
end... pid=12317
receive chld
fork 2
end... pid=12318
receive chld
connection open
fork 3
end... pid=12320
receive chld
fork 4
end... pid=12321
receive chld
go next...
while...
fork 1
end... pid=12322
receive chld
fork 2
end... pid=12323
receive chld
connection open
fork 3
end... pid=12324
receive chld
....
4. check process, no zombie process
ps -afx |grep perl
12300 pts/0 S+ 0:00 | \_ perl libvirt-perl.pl
12382 pts/2 S+ 0:00 \_ grep --color=auto perl
5. repeat step 1-4 with libvirt tcp connection, got the same result
move to verified
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/RHSA-2015-0323.html |