Gordon, Nov 29
ssh'd into the systems, and checked the interrupt load With the "intcount" command.
On vipers, PC104/GPIO interrupt is number 25, GPIO 01.
On titans, PC104/GPIO interrupt is number 129, GPIO 17.
On vipers and titans, ttyS1 is irq 37, ttyS2 is irq 36.
On vipers, ttyS3 is interrupt 116.
On titans, ttyS3 is interrupt 122
DSM |
ttyS5-20, IRQ 3 |
PC104/GPIO |
ttyS2, IRQ 36 |
ttyS1, 37 |
ttyS3 116/122 |
USB |
kernel |
notes |
|---|---|---|---|---|---|---|---|---|
a1 |
150-900 |
150-900 |
20 |
3.2 |
20 |
1018 |
2.6.35.9-ael1-1-viper Sep 14 10:54:19 MDT 2012 |
1,3 |
a2 |
5.4 |
5.4 |
20 |
3 |
20 |
1019 |
2.6.35.9-ael1-1-viper Sep 14 10:54:19 MDT 2012 |
3 |
a3 |
18.8 |
18.8 |
20 |
2 |
|
13.4 |
2.6.35.9-ael1-2-titan Oct 13 12:45:33 MDT 2012 |
|
a4 |
|
|
20 |
3 |
4 |
13.4 |
2.6.35.9-ael1-2-titan Sep 14 11:29:27 MDT 2012 |
|
a5 |
2300-3900 |
2300-3900 |
20 |
3 |
20 |
1020 |
2.6.35.9-ael1-1-viper Oct 4 13:21:09 MDT 2012 |
1,3 |
a6 |
5.4 |
5.4 |
20 |
3 |
20 |
1044 |
2.6.35.9-ael1-1-viper Sep 14 10:54:19 MDT 2012 |
3 |
a7 |
|
|
20 |
2 |
4 |
15 |
2.6.35.9-ael1-2-titan Sep 14 11:29:27 MDT 2012 |
|
a8 |
1500-2550 |
1500-2550 |
20 |
2 |
20 |
1020 |
2.6.35.9-ael1-1-viper Sep 14 10:54:19 MDT 2012 |
1,3 |
a9 |
|
|
20 |
2 |
20 |
1020 |
2.6.35.9-ael1-1-viper Sep 14 10:54:19 MDT 2012 |
3 |
a10 |
|
|
20 |
13 |
20 |
1020 |
2.6.35.9-ael1-1-viper Sep 14 10:54:19 MDT 2012 |
3 |
a11 |
|
|
20 |
3 |
4 |
18.6 |
2.6.35.9-ael1-2-titan Sep 14 11:29:27 MDT 2012 |
|
a12 |
|
|
20 |
2 |
3 |
15.6 |
2.6.35.9-ael1-2-titan Sep 14 11:29:27 MDT 2012 |
|
a13 |
|
|
20 |
3 |
4 |
12.8 |
2.6.35.9-ael1-2-titan Sep 14 11:29:27 MDT 2012 |
|
a14 |
|
|
20 |
3 |
20 |
1020 |
2.6.35.9-ael1-1-viper Sep 14 10:54:19 MDT 2012 |
3 |
a15 |
|
|
20 |
3 |
4 |
13.2 |
2.6.35.9-ael1-2-titan Sep 14 11:29:27 MDT 2012 |
|
a16 |
|
|
20 |
3 |
4 |
13.4 |
2.6.35.9-ael1-2-titan Sep 14 11:29:27 MDT 2012 |
|
a17 |
|
|
20 |
3 |
4 |
18.2 |
2.6.35.9-ael1-2-titan Sep 14 11:29:27 MDT 2012 |
|
a18 |
|
|
20 |
3 |
4 |
13.8 |
2.6.35.9-ael1-2-titan Sep 14 11:29:27 MDT 2012 |
|
a19 |
|
|
20 |
3 |
4 |
14.6 |
2.6.35.9-ael1-2-titan Sep 14 11:29:27 MDT 2012 |
|
c20 |
52 |
52 |
3 |
2 |
20 |
7.2 |
2.6.35.9-ael1-1-viper Sep 14 10:54:19 MDT 2012 |
4 |
m21 |
350 |
6000-7700 |
3 |
21 |
20 |
14 |
2.6.35.9-ael1-1-viper Oct 3 12:12:46 MDT 2012 |
1,2,4 |
m22 |
64 |
64 |
2 |
3 |
|
3 |
2.6.35.9-ael1-2-titan Oct 2 21:50:26 MDT 2012 |
4 |
Notes:
1: Some vipers have a large pc104 interrupt load. Occurs with both Sep 14 (a1,a8) and the Oct 4 (a5) kernels.
2: Not completely sure why on m21 the IRQ3 load is less than the pc104 load. Perhaps that version of the pc104 irq routine exits if pending bits are 0.
3: High USB interrupts are seen on vipers with bluetooth radios interfaced via USB. Not on Titans. Assume it is due the different interfaces. On a1-19 Vipers, only bluetooth radios are on USB. On Titans a1-19, bluetooth and flash drive are on USB.
4: On c20,m21, m22, USB is used only for flash drives
The only titans with PC104 serial are a3 and m22. They're both OK.
The big question is what is wrong with the PC104 interrupts on a1, a5, a8 and m21. Will have to investigate those systems back in the lab.