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sar output fails on sarge with udev and 2.6 kernel



Hi ,
     Looks like a bug . Or something failed .
I just moved one of my nfs servers to sarge from woody, as the system has 6 GB of ram I compiled the kernel 2.6.11.12 . The system is working fine.
although sar for the i/o system is failing . I have not compiled devfs option .

iostat 1 shows

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               0.00         0.00         0.00          0          0
sdb             134.00       240.00      4288.00        240       4288
sdc               0.00         0.00         0.00          0          0
sdd               0.00         0.00         0.00          0          0

avg-cpu:  %user   %nice %system %iowait   %idle
           0.50    0.00    1.00    5.47   93.03

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               0.00         0.00         0.00          0          0
sdb             142.00       480.00      4152.00        480       4152
sdc               7.00         0.00       144.00          0        144
sdd               0.00         0.00         0.00          0          0

avg-cpu:  %user   %nice %system %iowait   %idle
           0.50    0.00    1.50    3.50   94.50

Device:            tps   Blk_read/s   Blk_wrtn/s   Blk_read   Blk_wrtn
sda               2.00         0.00        24.00          0         24
sdb             100.00         0.00      3440.00          0       3440
sdc               3.00         0.00        32.00          0         32
sdd               0.00         0.00         0.00          0          0


But ...
sar -bdr

07:45:01         0.00      0.00      0.00      0.00      0.00

07:45:01          tps      rtps      wtps   bread/s   bwrtn/s
07:55:01         0.00      0.00      0.00      0.00      0.00
08:05:01         0.00      0.00      0.00      0.00      0.00
08:15:01         0.00      0.00      0.00      0.00      0.00
08:25:01         0.00      0.00      0.00      0.00      0.00
08:35:01         0.00      0.00      0.00      0.00      0.00
08:45:01         0.00      0.00      0.00      0.00      0.00
08:55:01         0.00      0.00      0.00      0.00      0.00
09:05:01         0.00      0.00      0.00      0.00      0.00
09:18:10         0.00      0.00      0.00      0.00      0.00
09:25:01         0.00      0.00      0.00      0.00      0.00
09:35:01         0.00      0.00      0.00      0.00      0.00
09:45:01         0.00      0.00      0.00      0.00      0.00
09:55:01         0.00      0.00      0.00      0.00      0.00
10:05:01         0.00      0.00      0.00      0.00      0.00
10:15:01         0.00      0.00      0.00      0.00      0.00
10:25:01         0.00      0.00      0.00      0.00      0.00
Average:         0.00      0.00      0.00      0.00      0.00

00:05:01    kbmemfree kbmemused  %memused kbbuffers  kbcached kbswpfree
kbswpused  %swpused  kbswpcad
00:15:01      3644524   2590636     41.55    699004   1714928   8128860
644      0.01         0
00:25:01      2135248   4099912     65.75    702196   3222900   8128860
644      0.01         0
00:35:01       304676   5930484     95.11    703356   5054884   8128860
644      0.01         0
00:45:01       298556   5936604     95.21    706864   5060964   8128860
644      0.01         0
00:55:01       278164   5956996     95.54    708248   5081340   8128860
644      0.01         0
01:05:01       105188   6129972     98.31    616388   5349796   8128860
644      0.01         0
01:15:01        97280   6137880     98.44    624184   5349684   8128860
644      0.01         0
01:25:01        91596   6143564     98.53    630012   5349500   8128860
644      0.01         0
01:35:01       187416   6047744     96.99    526596   5362000   8128860
644      0.01         0
01:45:01       177624   6057536     97.15    535868   5361976   8128860
644      0.01         0
01:55:01       162996   6072164     97.39    550752   5361576   8128860
644      0.01         0
02:05:01       156548   6078612     97.49    557284   5361980   8128860
644      0.01         0
02:15:01       142916   6092244     97.71    571100   5361968   8128860
644      0.01         0
02:25:01       131384   6103776     97.89    583052   5361032   8128860
644      0.01         0
02:35:01       118364   6116796     98.10    595636   5361844   8128860
644      0.01         0
02:45:01        87364   6147796     98.60    626584   5361904   8128860
644      0.01         0
02:55:01        18628   6216532     99.70    722704   5349220   8128860
644      0.01         0
03:05:01        15836   6219324     99.75    733192   5343968   8128860
644      0.01         0
03:15:01        10356   6224804     99.83    733320   5349552   8128860
644      0.01         0
03:25:01        11668   6223492     99.81    733200   5349128   8128860
644      0.01         0
03:35:01        10388   6224772     99.83    734508   5349656   8128860
644      0.01         0
03:45:02        10212   6224948     99.84    735268   5349984   8128860
644      0.01         0
03:55:01        10204   6224956     99.84    735748   5349640   8128860
644      0.01         0




Looks like I have no log for io stats and that is bad .

Cheers
yogesh








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