Kernal 2.6.15-26 Server Memory Leaks and Disk I/O errors

Please attach dmesg.

Please note that CVE 1859 is already patched in our latest dapper kernel.

Also, describe more completely the behavior you are seeing and the behavior that you are expecting. The numbers you show above meen very little without some context to explain why they are incorrect.

dmesg

3724395.730000] ata1: status=0x51 { DriveReady SeekComplete Error }
[43724436.990000] ata1: no sense translation for status: 0x51
[43724436.990000] ata1: translated ATA stat/err 0x51/00 to SCSI SK/ASC/ASCQ 0x3/11/04
[43724436.990000] ata1: status=0x51 { DriveReady SeekComplete Error }

Then the primary drive shut down
 Free

Without some more info on the memory issue, I'll assume there's no security problem.

As for the IO errors, please attach full dmesg output, and describe exactly what steps you take to reproduce the problem.

Today I checked the dmesg. And I notice a error like this

ata1: command 0x25 timeout, stat 0x50 host_stat 0x61 Free looks like this

total used free shared buffers cached
Mem: 1003 532 470 0 157 116
-/+ buffers/cache: 258 744
Swap: 2917 0 2917

I not use a lot of services just apache mysql bind and a postfix MTA. The MTA is not live at moment.
The webserver is not live (preproduction) How come I only have 532 free where I should have about 800.

Output of "ps axu > ps.txt" would be helpful.

Ok, from what it looks like, most of your memory is used up in cache. Are you doing anything disk intensive?

Please provide output of "lsmod > lsmod.txt"

Sorry, need these too:

cat /proc/meminfo > meminfo.txt
cat /proc/slabinfo > slabinfo.txt

I don't see anything out of the ordinary. You have a lot of cache used, but again, that's normal, especially if you are doing a lot of disk related things (like web, sql, etc).

The cache isn't "used memory" per se, but it does show up in the free list as being used. If userspace programs need this memory, the kernel will automatically free from the cache.

I think the memory aspect of this bug report is a non-issue. If you want more assistance with the I/O error, please provide a full dmesg with this problem occuring in it.

Checked on this, rejecting this bug, since the ATA errors are in another bug report (55692).