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тАО07-21-2006 02:44 AM
тАО07-21-2006 02:44 AM
Hi
One of my servers running RH AS 3 Update 3
Kernel 2.4.21-20
The system was unable to be accessed via ssh or via ilo, once the password was entered the system would hang and never proceed past this point.
All I have to go on is the log /var/log/maillog displays messages such as
Jul 16 21:10:23 esmadl01 sendmail[1903]: rejecting connections on daemon MTA: load average: 48
Jul 16 21:11:08 esmadl01 last message repeated 3 times
This is repeated for days until the load reaches 1015 !!
I have no real idea what caused this, but we do collect some sar data this stopped at 19.30 on the same date (Jul 16)
I have attache this file sar.txt
The only thing strange is dentunusd and pgins goes high, Any ideas why the system would do this ?
Any thought as a little stuck
dmesg / messages shows nothing :-(
Thanks
One of my servers running RH AS 3 Update 3
Kernel 2.4.21-20
The system was unable to be accessed via ssh or via ilo, once the password was entered the system would hang and never proceed past this point.
All I have to go on is the log /var/log/maillog displays messages such as
Jul 16 21:10:23 esmadl01 sendmail[1903]: rejecting connections on daemon MTA: load average: 48
Jul 16 21:11:08 esmadl01 last message repeated 3 times
This is repeated for days until the load reaches 1015 !!
I have no real idea what caused this, but we do collect some sar data this stopped at 19.30 on the same date (Jul 16)
I have attache this file sar.txt
The only thing strange is dentunusd and pgins goes high, Any ideas why the system would do this ?
Any thought as a little stuck
dmesg / messages shows nothing :-(
Thanks
Argh ye land lovers !
Solved! Go to Solution.
3 REPLIES 3
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тАО07-21-2006 02:50 AM
тАО07-21-2006 02:50 AM
Re: Unknown reason for system hang
Also, this server runs veritas volume manager, and oracle 9.2
This server uses no external storage, only the internal disk cciss0: HP Smart Array 5i Controller.
This server uses no external storage, only the internal disk cciss0: HP Smart Array 5i Controller.
Argh ye land lovers !
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тАО07-21-2006 06:03 AM
тАО07-21-2006 06:03 AM
Solution
Paul,
Take a look at this:
https://bugzilla.redhat.com/bugzilla/long_list.cgi?buglist=117400
Looks like there might be a race condition with Veritas and certain versions of the 2.4 kernel where dentry_stat is updated to a negative number.
- Alex
Take a look at this:
https://bugzilla.redhat.com/bugzilla/long_list.cgi?buglist=117400
Looks like there might be a race condition with Veritas and certain versions of the 2.4 kernel where dentry_stat is updated to a negative number.
- Alex
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тАО07-25-2006 06:14 AM
тАО07-25-2006 06:14 AM
Re: Unknown reason for system hang
The sar output shows nothing interesting. If the system is able to work after power cycle, is all file system, such as size, missing links, etc. normal?
I did see one Dell 6850 lost filesystem when running, but it is fine after it is rebooted.
Check to see if there is any kernel update available.
I did see one Dell 6850 lost filesystem when running, but it is fine after it is rebooted.
Check to see if there is any kernel update available.
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