Bug 175652
| Summary: | adding more memory makes the machine use 100% CPU | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | jairo medina <jairo19> | ||||
| Component: | xorg-x11 | Assignee: | X/OpenGL Maintenance List <xgl-maint> | ||||
| Status: | CLOSED CURRENTRELEASE | QA Contact: | David Lawrence <dkl> | ||||
| Severity: | medium | Docs Contact: | |||||
| Priority: | medium | ||||||
| Version: | 4 | CC: | davej, wtogami | ||||
| Target Milestone: | --- | ||||||
| Target Release: | --- | ||||||
| Hardware: | i686 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | FC5 | Doc Type: | Bug Fix | ||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2006-06-27 16:35:04 UTC | Type: | --- | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
|
||||||
|
Description
jairo medina
2005-12-13 17:54:02 UTC
can you strace the X server process thats taking up all teh CPU and see what its doing ? It sounds like an X bug to me, but I'll stay on the Cc for a while to be sure, and bring in the X folks. PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
2974 root 25 0 0 0 0 R 99.9 0.0 203:05.59 X
12066 root 25 0 4372 1216 1048 S 7.9 0.1 0:12.04 prefdm
1909 root 12 -3 11936 628 468 S 2.0 0.0 0:00.23 auditd
2716 root 15 0 2140 764 668 S 2.0 0.0 0:11.15 hald-addon-hid-
1 root 16 0 1740 576 492 S 0.0 0.0 0:01.25 init
[root@linux2 ~]# strace -p 2974
attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted
is there another way to strace the process ?
I installed the latest kernel from your ftp, with the same results execpt that I was able to attached to the process, but nothing comes out of it and I cannot break from it. Tasks: 134 total, 2 running, 132 sleeping, 0 stopped, 0 zombie Cpu(s): 0.1% us, 42.1% sy, 0.0% ni, 57.8% id, 0.0% wa, 0.0% hi, 0.0% si Mem: 4149108k total, 191452k used, 3957656k free, 12072k buffers Swap: 4194288k total, 0k used, 4194288k free, 85168k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 2976 root 25 0 37872 8456 2012 R 99.7 0.2 2:21.21 X [root@linux2 ~]# uname -a Linux linux2 2.6.14-1.1651_FC4smp #1 SMP Mon Dec 12 21:46:12 EST 2005 i686 i686 i386 GNU/Linux [root@linux2 ~]# strace -p 2976 Process 2976 attached - interrupt to quit Thanks, Created attachment 122200 [details]
Xstrace-output-linux2-4Gb-2.6.14-1.1651_FC4smp.txt
ran strace twice on X
I power cycled and got the problem, then I just issued a 'reboot' and the machine came back up without the problem. The difference this time is that the machine was coming up from a power-on state instead of a power cycle. Note that knoppix was able to boot from a power cycle. I attached the strace output of X running without the problem. There seems to be a buffer overflow. Since this bugzilla report was filed, there have been several major
updates to the X Window System, which may resolve this issue. Users
who have experienced this problem are encouraged to upgrade to the
latest version of Fedora Core, which can be obtained from:
http://fedora.redhat.com/download
If this issue turns out to still be reproduceable in the latest
version of Fedora Core, please file a bug report in the X.Org
bugzilla located at http://bugs.freedesktop.org in the "xorg"
component.
Once you've filed your bug report to X.Org, if you paste the new
bug URL here, Red Hat will continue to track the issue in the
centralized X.Org bug tracker, and will review any bug fixes that
become available for consideration in future updates.
Setting status to "CURRENTRELEASE".
|