RE: Freeing unused kernel memory

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> -----Original Message-----
> From: redhat-list-bounces@xxxxxxxxxx 
> [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of Mark Farmer
> Sent: Monday, February 21, 2005 9:35 AM
> To: General Red Hat Linux discussion list
> Subject: Freeing unused kernel memory
> 
> Hi
> 
> We have a server running AS 2.1 which stops booting after 
> saying "freeing unused kernel memory: 248k freed" at this point I can 
> ctrl+alt+del and the server reboots so it's not actually hung 
> & if left
> long enough a message will apear on screen saying 
> "aacraid:controller 0 completed scrub test" which I suspect 
> is comming from the raid controller itself & not the OS.
> I can boot from cd1 with 'linux rescue' & it mounts the 
> install into /mnt/sysimage & I can chroot in no problem, 
> start services etc.
> I've grabbed a copy of the logs while running in rescue mode 
> but there is nothing at all near the time of the crash and 
> nothing obvious in dmesg etc.
> 
> After googleing i've tried passing (not all at the same time) 
> 'apm=off' 
> 'acpi=off' 'vsdo=0' but none of these help.
> I don't know what the 'vsod=0' does, anyone?
> 
> The last time the server ran under it's own steam we saw a 
> kernel panic with a message about an error on cpu1, I have 
> tried both smp & std kernels but neither will complete the 
> boot process.
> 
> Short of reinstalling the machine which seems a little 
> drastic i'm at a loss here, does anyone have any ideas or 
> indeed know of a fix?
> 
> TIA
> 
> --
> Mark Farmer
> Linux System Administrator
> 
> 
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Can you boot into single user mode?

Albert Smith
Sr. Unix Systems Administrator
HPCSA, RHCT
Genex Services
440 E. Swedesford Rd.
Wayne, PA 19087
albert.smith@xxxxxxxxxxxxxxxxx
(610) 964-5154
 


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