I encounter a kind of strange problem which seems to be related to the timer
problem. My machine is behaving differently when under load. Actually
behaving better when under load.
I am testing the eth ports and thus I am pining on both internal ports and I
am also pinging the box from another server on eth1.
Within 1 min I received 4.92062e+06 Interrupts on eth1(not bad for a 2 way
ping) and 130 Interrupts on eth0 for the 1 way ping.
The timer interrupts are 5992 which I would say pretty good for a hand reading
You can also see completly different behavior on the ports and a jamming don't
ask me where it is coming from. The box has no other task to preform.
Can anybody make any sense out of that ?
I changed the debug level for the eth driver. It returns every few seconds:
APIC error on CPU1 : 02(02) (i know not an eth message, but it pops up at
APIC error on CPU0 : 02(02) the same time)
vortex_error(), status = 0xe481
vortex_error(), status = 0xe281
vortex_error(), status = 0xe681
vortex_error(), status = 0xe081
The vortex error may be 1 to 4 messages and either one is possible in any
combination
I attach the readings
/proc/interrupts at the start
CPU0 CPU1
0: 3163847 3164837 IO-APIC-edge timer
1: 2839 2811 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
5: 2603035427 2603245593 IO-APIC-level eth1
6: 36 36 IO-APIC-edge floppy
8: 0 2 IO-APIC-edge rtc
11: 70888 69025 IO-APIC-level dpti0, eth0
12: 12580 12617 IO-APIC-edge PS/2 Mouse
14: 2 2 IO-APIC-edge ide0
NMI: 0 0
LOC: 6328682 6328831
ERR: 558
MIS: 1458
/proc/interrupts after 1 min
CPU0 CPU1
0: 3166842 3167834 IO-APIC-edge timer
1: 2898 2872 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
5: 2605498761 2605702882 IO-APIC-level eth1
6: 42 42 IO-APIC-edge floppy
8: 0 2 IO-APIC-edge rtc
11: 70951 69092 IO-APIC-level dpti0, eth0
12: 12580 12617 IO-APIC-edge PS/2 Mouse
14: 2 2 IO-APIC-edge ide0
NMI: 0 0
LOC: 6334674 6334822
ERR: 558
MIS: 1458
the ifconfig output
eth0 Link encap:Ethernet HWaddr 00:E0:81:21:FF:A2
inet addr:192.168.47.11 Bcast:192.168.47.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:125798 errors:0 dropped:0 overruns:0 frame:0
TX packets:188956 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:12327368 (11.7 Mb) TX bytes:18517194 (17.6 Mb)
Interrupt:11 Base address:0x2400
eth1 Link encap:Ethernet HWaddr 00:E0:81:21:FF:A3
inet addr:192.168.47.12 Bcast:192.168.47.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:126196 errors:0 dropped:0 overruns:0 frame:0
TX packets:63016 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:12366600 (11.7 Mb) TX bytes:6164576 (5.8 Mb)
Interrupt:5 Base address:0x2480
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:8 errors:0 dropped:0 overruns:0 frame:0
TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:400 (400.0 b) TX bytes:400 (400.0 b)
the ping on eth0
The blocks of 5 return at the same time , as the time differnce is always 1sec
off look pretty nasty
PING 192.168.47.47 (192.168.47.47) from 192.168.47.11 eth0: 56(84) bytes of
data.
64 bytes from 192.168.47.47: icmp_seq=1 ttl=255 time=912 ms
64 bytes from 192.168.47.47: icmp_seq=2 ttl=255 time=4912 ms
64 bytes from 192.168.47.47: icmp_seq=3 ttl=255 time=3912 ms
64 bytes from 192.168.47.47: icmp_seq=4 ttl=255 time=2912 ms
64 bytes from 192.168.47.47: icmp_seq=5 ttl=255 time=1912 ms
64 bytes from 192.168.47.47: icmp_seq=6 ttl=255 time=912 ms
64 bytes from 192.168.47.47: icmp_seq=7 ttl=255 time=4905 ms
64 bytes from 192.168.47.47: icmp_seq=8 ttl=255 time=3905 ms
64 bytes from 192.168.47.47: icmp_seq=9 ttl=255 time=2905 ms
64 bytes from 192.168.47.47: icmp_seq=10 ttl=255 time=1905 ms
64 bytes from 192.168.47.47: icmp_seq=11 ttl=255 time=905 ms
64 bytes from 192.168.47.47: icmp_seq=12 ttl=255 time=4912 ms
64 bytes from 192.168.47.47: icmp_seq=13 ttl=255 time=3911 ms
64 bytes from 192.168.47.47: icmp_seq=14 ttl=255 time=2912 ms
64 bytes from 192.168.47.47: icmp_seq=15 ttl=255 time=1912 ms
64 bytes from 192.168.47.47: icmp_seq=16 ttl=255 time=912 ms
64 bytes from 192.168.47.47: icmp_seq=17 ttl=255 time=4902 ms
64 bytes from 192.168.47.47: icmp_seq=18 ttl=255 time=3902 ms
64 bytes from 192.168.47.47: icmp_seq=19 ttl=255 time=2902 ms
64 bytes from 192.168.47.47: icmp_seq=20 ttl=255 time=1902 ms
64 bytes from 192.168.47.47: icmp_seq=21 ttl=255 time=902 ms
--- 192.168.47.47 ping statistics ---
22 packets transmitted, 21 received, 4% loss, time 21039ms
rtt min/avg/max/mdev = 902.583/2812.949/4912.193/1444.073 ms, pipe 5
The ping from eth1 looks a lot better, everything again in blocks of 5 just
this time 4 good one's and 1 bad
PING 192.168.47.47 (192.168.47.47) from 192.168.47.12 eth1: 56(84) bytes of
data.
64 bytes from 192.168.47.47: icmp_seq=1 ttl=255 time=0.169 ms
64 bytes from 192.168.47.47: icmp_seq=2 ttl=255 time=0.180 ms
64 bytes from 192.168.47.47: icmp_seq=3 ttl=255 time=0.173 ms
64 bytes from 192.168.47.47: icmp_seq=4 ttl=255 time=645 ms
64 bytes from 192.168.47.47: icmp_seq=5 ttl=255 time=0.181 ms
64 bytes from 192.168.47.47: icmp_seq=6 ttl=255 time=0.174 ms
64 bytes from 192.168.47.47: icmp_seq=7 ttl=255 time=0.169 ms
64 bytes from 192.168.47.47: icmp_seq=8 ttl=255 time=0.173 ms
64 bytes from 192.168.47.47: icmp_seq=9 ttl=255 time=654 ms
64 bytes from 192.168.47.47: icmp_seq=10 ttl=255 time=0.177 ms
64 bytes from 192.168.47.47: icmp_seq=11 ttl=255 time=0.171 ms
64 bytes from 192.168.47.47: icmp_seq=12 ttl=255 time=0.173 ms
64 bytes from 192.168.47.47: icmp_seq=13 ttl=255 time=0.171 ms
64 bytes from 192.168.47.47: icmp_seq=14 ttl=255 time=653 ms
64 bytes from 192.168.47.47: icmp_seq=15 ttl=255 time=0.171 ms
64 bytes from 192.168.47.47: icmp_seq=16 ttl=255 time=0.174 ms
64 bytes from 192.168.47.47: icmp_seq=17 ttl=255 time=0.173 ms
64 bytes from 192.168.47.47: icmp_seq=18 ttl=255 time=0.170 ms
64 bytes from 192.168.47.47: icmp_seq=19 ttl=255 time=672 ms
64 bytes from 192.168.47.47: icmp_seq=20 ttl=255 time=0.181 ms
64 bytes from 192.168.47.47: icmp_seq=21 ttl=255 time=0.174 ms
64 bytes from 192.168.47.47: icmp_seq=22 ttl=255 time=0.174 ms
--- 192.168.47.47 ping statistics ---
22 packets transmitted, 22 received, 0% loss, time 21066ms
rtt min/avg/max/mdev = 0.169/119.485/672.358/253.133 ms
and last but not least a list of attached PCI devices.
The eth driver used is the 3c59x from Donald Becker
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System
Controller (rev 17).
Master Capable. Latency=64.
Prefetchable 32 bit memory at 0xf8000000 [0xfbffffff].
Prefetchable 32 bit memory at 0xf6200000 [0xf6200fff].
I/O at 0x1010 [0x1013].
Bus 0, device 1, function 0:
PCI bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] AGP Bridge
(rev 0).
Master Capable. Latency=64. Min Gnt=4.
Bus 0, device 7, function 0:
ISA bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ISA (rev 5).
Bus 0, device 7, function 1:
IDE interface: Advanced Micro Devices [AMD] AMD-768 [Opus] IDE (rev 4).
Master Capable. Latency=64.
I/O at 0x0 [0x7].
I/O at 0x0 [0x3].
I/O at 0xf000 [0xf00f].
Bus 0, device 7, function 3:
Bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI (rev 3).
Master Capable. Latency=64.
Bus 0, device 9, function 0:
I2O: Distributed Processing Technology SmartRAID V Controller (rev 1).
IRQ 11.
Master Capable. Latency=64. Min Gnt=1.Max Lat=1.
Prefetchable 32 bit memory at 0xfc000000 [0xfdffffff].
Bus 0, device 9, function 1:
PCI bridge: Distributed Processing Technology PCI Bridge (rev 1).
Master Capable. Latency=64. Min Gnt=4.
Bus 0, device 16, function 0:
PCI bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] PCI (rev 5).
Master Capable. Latency=99. Min Gnt=12.
Bus 3, device 4, function 0:
Serial controller: Timedia Technology Co Ltd PCI2S550 (Dual 16550 UART)
(rev 1).
IRQ 11.
I/O at 0x2800 [0x281f].
I/O at 0x2820 [0x282f].
I/O at 0x2848 [0x284f].
I/O at 0x2840 [0x2847].
I/O at 0x2838 [0x283f].
I/O at 0x2830 [0x2837].
Bus 3, device 7, function 0:
VGA compatible controller: ATI Technologies Inc Rage XL (rev 39).
Master Capable. Latency=66. Min Gnt=8.
Non-prefetchable 32 bit memory at 0xf5000000 [0xf5ffffff].
I/O at 0x2000 [0x20ff].
Non-prefetchable 32 bit memory at 0xf4001000 [0xf4001fff].
Bus 3, device 8, function 0:
Ethernet controller: 3Com Corporation 3c980-TX 10/100baseTX NIC [Python-T]
(rev 120).
IRQ 11.
Master Capable. Latency=80. Min Gnt=10.Max Lat=10.
I/O at 0x2400 [0x247f].
Non-prefetchable 32 bit memory at 0xf4002000 [0xf400207f].
Bus 3, device 9, function 0:
Ethernet controller: 3Com Corporation 3c980-TX 10/100baseTX NIC [Python-T]
(#2) (rev 120).
IRQ 5.
Master Capable. Latency=80. Min Gnt=10.Max Lat=10.
I/O at 0x2480 [0x24ff].
Non-prefetchable 32 bit memory at 0xf4002400 [0xf400247f].
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Wed Aug 07 2002 - 22:00:30 EST