Fwd: twe0 interrupt storm

[Stanislav]

Hi, I have problem on FreeBSD 6.2, 7.0 with 3ware 8006-2LP RAID-1 controller:

 Model         8006-2LP
 Serial #      L018501C7271467
 Firmware      FE8S 1.05.00.068
 Driver        1.50.01.002
 BIOS  BE7X 1.08.00.048
 Monitor       ME7X 1.01.00.040
 Memory Installed      512 kB
 # of Ports    2
 # of Drives   2
 # of Units    1

Jun 11 21:38:00 gans kernel: twe0: <3ware Storage Controller. Driver
version 1.50.01.002> port 0xe800-0xe80f mem
0xfebffc00-0xfebffc0f,0xfe000000-0xfe7fffff irq 20 at device 2.0
on pci3
Jun 11 21:38:00 gans kernel: twe0: [GIANT-LOCKED]
Jun 11 21:38:00 gans kernel: twe0: [ITHREAD]
Jun 11 21:38:00 gans kernel: twe0: 2 ports, Firmware FE8S 1.05.00.068,
BIOS BE7X 1.08.00.048

/var/log/messages
Jun 10 14:51:36 gans kernel: interrupt storm detected on "irq21:";
throttling interrupt source
Jun 10 14:52:07 gans last message repeated 31 times
Jun 10 14:54:08 gans last message repeated 121 times
Jun 10 15:04:09 gans last message repeated 598 times
Jun 10 15:14:10 gans last message repeated 599 times
Jun 10 15:24:11 gans last message repeated 600 times
Jun 10 15:34:12 gans last message repeated 598 times
Jun 10 15:44:13 gans last message repeated 598 times
Jun 10 15:54:14 gans last message repeated 600 times
Jun 10 16:04:15 gans last message repeated 600 times
Jun 10 16:14:16 gans last message repeated 599 times
Jun 10 16:24:17 gans last message repeated 598 times

[root at gans /home/sg]# vmstat -w 5
 procs      memory      page                   disk   faults         cpu
 r b w     avm    fre   flt  re  pi  po    fr  sr tw0   in   sy   cs us sy id
 8 3 0   5389M   220M  1410  23   5   3   809 1762   0 11200 1377 3451 26 15 59
 7 5 0   5505M   139M 16909 188   1   0 11025   0  81 565387 182791
30440 68 18 14
 1 6 0   5468M   158M 19244  35   1   0 19469   0  42 563246 217685
7941 75 22  3
 6 3 0   5276M   235M 23078   7   1   0 27426   0 135 555198 118844
73807 33 20 47
 0 0 0   5177M   283M  9636   3   1   0 20972   0 108 564052 144113
6643 29 14 57
 5 0 0   5176M   284M  8968   7   0   0  8607   0  22 567849 143837
6767 27 12 60
 9 1 0   5199M   268M 14417   0   0   0 25905   0  31 567551 249480
6951 48 22 29
 1 3 0   5341M   201M  8095  16  25   0  5087   0 112 565233 63826 6777 28  8 63
 1 4 0   5356M   184M 30195  11   2   0 38720   0  95 560968 137901
52156 71 22  7
 1 3 0   5266M   225M 13461   2   1   0 15518   0  46 564340 101664
9105 33 13 54
[root at gans /home/sg]# vmstat -i
interrupt                          total       rate
irq1: atkbd0                           4          0
irq16: ohci0                           1          0
irq17: ohci1 ohci3                     1          0
irq18: ohci2 ohci4                     1          0
irq21: twe0                  38629583391     101980
cpu0: timer                    757587412       1999
cpu1: timer                    757587403       1999
Total                        40144758213     105980

I have recompiled kernel to 6.2-STABLE, 7.0-RELEASE, 7.0-RELEASE-p1,
7.0-STABLE but error persists.

System work good for some time (few days) and than vmstat -i irq20;
rate increases from 60-90 to 100000+ and than system hangs.
After reboot system work good for some time.

I have replaced sever, moved disks to another server with same
hardware (and controller), and error persists.

Kind Regards