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тАО10-03-2010 11:31 PM
тАО10-03-2010 11:31 PM
4gb seg fixup
Oct 2 22:03:00 ss2 kernel: printk: 78325 messages suppressed.
Oct 2 22:03:00 ss2 kernel: 4gb seg fixup, process httpd (pid 9471), cs:ip 73:00eba4f2
Oct 2 22:03:05 ss2 kernel: printk: 144865 messages suppressed.
Oct 2 22:03:05 ss2 kernel: 4gb seg fixup, process java (pid 4787), cs:ip 73:00969057
What's the root cause?
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тАО10-04-2010 05:43 AM
тАО10-04-2010 05:43 AM
Re: 4gb seg fixup
Is Google broken? I know nothing, but a
simple Web search for the message seems to
find many things.
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тАО10-04-2010 04:50 PM
тАО10-04-2010 04:50 PM
Re: 4gb seg fixup
try google search
kernel + 4gb +seq +fixup
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тАО10-04-2010 07:06 PM
тАО10-04-2010 07:06 PM
Re: 4gb seg fixup
I would (and did) try:
"4gb seg fixup"
> Oct 4, 2010 13:43:31 GMT 0 pts
You might find that you'll get more help if
you try the simple and obvious things
yourself, and _then_ ask for help when they
don't do what you need. People who demand
help, but who don't try to help themselves,
are often ignored.
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тАО10-04-2010 07:30 PM
тАО10-04-2010 07:30 PM
Re: 4gb seg fixup
I appreciate our advice but isn't that what forums for? Question and answer, and also leave a trace for people who encounter same problem in the future can get hints from my post?
I have been google-ing for many days until i decided to post a question here. But it seems this forums is only opened for professional and questions have to be approved by some of the senior here.
Nevertheless, have a nice day. Good bye.
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тАО10-04-2010 08:17 PM
тАО10-04-2010 08:17 PM
Re: 4gb seg fixup
> forums for? [...]
I believe that these forums are most useful
for dealing with problems which are not
already documented in (many) other places.
But, if you can find someone here who is
willing to do your whole job for you, then
you have my blessing.
> I have been google-ing for many days [...]
My psychic powers were too weak to tell me
that. And you learned nothing from it?
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тАО10-05-2010 06:49 AM
тАО10-05-2010 06:49 AM
Re: 4gb seg fixup
I've seen this before in reference to java memory leaks.. The first thing I would recommend is to confirm that your JRE is current. The second thing I would do is to use top or ps to see if your physical memory utilization is maxed out.
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тАО10-06-2010 10:08 AM
тАО10-06-2010 10:08 AM
Re: 4gb seg fixup
If you are using Xen, Google showed me these messages might mean your httpd and java processes are using "regular" system libraries instead of the "Xenified" ones.
If you run this command:
cat /etc/ld.so.conf.d/kernelcap-`uname -r`.conf
The response should include this:
hwcap 0 nosegneg
If the file does not exist or does not contain "hwcap 0 nosegneg", fix it, then run "ldconfig", and then restart all the processes that are mentioned in the "4gb seg fixup" messages.
In RHEL 5, the important file seems to come with the "kernel-xen" RPM, at least on the RHEL 5.5 update level. (If you're running RHEL 5.4 or older, please update, then reboot so that the system can start using the updated kernel.
MK