Spurious interrupts on a 2821

Hi,

For the 3rd time in a month I had a lot of 'spurious interrupts' on a 2821 with a HWIC-1ADSL running on IOS 12.4(11)T Advanced Enterprise Services:

Jan 25 10:01:08: %HWIC_ADSL_BRI-7-NETSPURIOUSEVENT: HWIC_ADSL_BRI 1: Spurious network interrupt 0 happened, mask 3FF. Jan 25 10:01:08: %HWIC_ADSL_BRI-7-IRQSPURIOUSEVENT: HWIC_ADSL_BRI: Spurious IRQ1 interrupt 0 happened. Jan 25 10:01:40: %HWIC_ADSL_BRI-7-NETSPURIOUSEVENT: HWIC_ADSL_BRI 1: Spurious network interrupt 0 happened, mask 3FF. Jan 25 10:02:01: %HWIC_ADSL_BRI-7-IRQSPURIOUSEVENT: HWIC_ADSL_BRI: Spurious IRQ1 interrupt 0 happened. Jan 25 10:02:11: %HWIC_ADSL_BRI-7-NETSPURIOUSEVENT: HWIC_ADSL_BRI 1: Spurious network interrupt 0 happened, mask 3FF. Jan 25 10:02:33: %HWIC_ADSL_BRI-7-IRQSPURIOUSEVENT: HWIC_ADSL_BRI: Spurious IRQ1 interrupt 0 happened. Jan 25 10:02:43: %HWIC_ADSL_BRI-7-NETSPURIOUSEVENT: HWIC_ADSL_BRI 1: Spurious network interrupt 0 happened, mask 3FF. Jan 25 10:03:05: %HWIC_ADSL_BRI-7-IRQSPURIOUSEVENT: HWIC_ADSL_BRI: Spurious IRQ1 interrupt 0 happened. Jan 25 10:03:15: %HWIC_ADSL_BRI-7-NETSPURIOUSEVENT: HWIC_ADSL_BRI 1: Spurious network interrupt 0 happened, mask 3FF. Jan 25 10:03:47: %HWIC_ADSL_BRI-7-NETSPURIOUSEVENT: HWIC_ADSL_BRI 1: Spurious network interrupt 0 happened, mask 3FF. Jan 25 10:04:19: %HWIC_ADSL_BRI-7-NETSPURIOUSEVENT: HWIC_ADSL_BRI 1: Spurious network interrupt 0 happened, mask 3FF. Jan 25 10:04:19: %HWIC_ADSL_BRI-7-IRQSPURIOUSEVENT: HWIC_ADSL_BRI: Spurious IRQ1 interrupt 0 happened. Jan 25 10:04:51: %HWIC_ADSL_BRI-7-NETSPURIOUSEVENT: HWIC_ADSL_BRI 1: Spurious network interrupt 0 happened, mask 3FF.

After this the router is completely unreachable. When I reset the router everything is OK again for a week or so. The only information I can find on the cisco website about this errormessages is that this are debug-messages only, and that no action is required:

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Any ideas? Can it be a bug in the IOS (HWIC-1ADSL is only supported in the T-train), or is the HWIC-1ADSL module the problem?

Thanks in advance! Roel Koops

Reply to
Roel
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If everyting is working I would believe the documents.

You don't actually have adebug enabled do you?

Reply to
Bod43

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Sorry pressed wrong button.

If everyting is working I would believe the documents.

You don't actually have a debug enabled do you?

Level 7 is the least significant message type. Very often cisco do know what they are doing.

Reply to
Bod43

I don't believe "no action required" if the router is unreachable ;-)

No, there's no debug enabled in the last 2 months.

Reply to
Roel

action required" if the router is unreachable ;-)

in the last 2 months.

Sorry, did not read the whole mesage carefully. On usenet you get more than you pay for:-)

In that case it sounds like a bug.

TAC or if you don't have that try different software.

You could try stripping out non-essential config items and manually allocating buffers to reduce or eliminate failures and missed buffers, but you will have to be very lucky to fix it that way.

If you want buffer sugegstions post

sh buffers

also check for general overload, what is the CPU? are there any drops, ignores, throttles?

Reply to
Bod43

I stripped out some config items. We'll see if it helps in the next weeks.

The CPU load is low, between 1 and 5%.

Buffer elements: 1117 in free list (1119 max allowed) 1014474 hits, 0 misses, 619 created

Public buffer pools: Small buffers, 104 bytes (total 33, permanent 50, peak 71 @ 2d17h): 31 in free list (20 min, 150 max allowed) 2101845 hits, 398 misses, 408 trims, 391 created 130 failures (0 no memory) Middle buffers, 600 bytes (total 33, permanent 25, peak 64 @ 2d17h): 12 in free list (10 min, 150 max allowed) 90888 hits, 147 misses, 185 trims, 193 created 57 failures (0 no memory) Big buffers, 1536 bytes (total 9, permanent 50): 9 in free list (5 min, 150 max allowed) 33678 hits, 72 misses, 128 trims, 87 created 44 failures (0 no memory) VeryBig buffers, 4520 bytes (total 1, permanent 10, peak 11 @ 2d12h): 1 in free list (0 min, 100 max allowed) 15 hits, 29 misses, 35 trims, 26 created 29 failures (0 no memory) Large buffers, 5024 bytes (total 1, permanent 0, peak 2 @ 2d04h): 1 in free list (0 min, 10 max allowed) 5 hits, 24 misses, 25 trims, 26 created 24 failures (0 no memory) Huge buffers, 18024 bytes (total 1, permanent 0, peak 2 @ 2d04h): 1 in free list (0 min, 4 max allowed) 5 hits, 19 misses, 25 trims, 26 created 19 failures (0 no memory)

Interface buffer pools: Syslog ED Pool buffers, 600 bytes (total 150, permanent 150): 118 in free list (150 min, 150 max allowed) 39 hits, 0 misses CD2430 I/O buffers, 1536 bytes (total 0, permanent 0): 0 in free list (0 min, 0 max allowed) 0 hits, 0 fallbacks Dot11Radio0/1/0Psp buffers, 1680 bytes (total 80, permanent 80): 80 in free list (0 min, 80 max allowed) 300 hits, 0 fallbacks Dot11Radio0/1/0 buffers, 2400 bytes (total 96, permanent 96): 32 in free list (0 min, 96 max allowed) 378229 hits, 0 fallbacks IPC buffers, 4096 bytes (total 2, permanent 2): 2 in free list (1 min, 8 max allowed) 0 hits, 0 fallbacks, 0 trims, 0 created 0 failures (0 no memory)

Header pools: Header buffers, 0 bytes (total 768, permanent 768): 256 in free list (128 min, 1024 max allowed) 512 hits, 0 misses, 0 trims, 0 created 0 failures (0 no memory) 512 max cache size, 512 in cache 230985 hits in cache, 0 misses in cache

Particle Clones: 1024 clones, 0 hits, 0 misses

Public particle pools: F/S buffers, 256 bytes (total 768, permanent 768): 256 in free list (128 min, 1024 max allowed) 124355 hits, 0 misses, 0 trims, 0 created 0 failures (0 no memory) 512 max cache size, 512 in cache 0 hits in cache, 0 misses in cache Normal buffers, 1548 bytes (total 768, permanent 768): 768 in free list (128 min, 1024 max allowed) 133 hits, 0 misses, 0 trims, 0 created 0 failures (0 no memory)

Private particle pools: IDS SM buffers, 240 bytes (total 128, permanent 128): 0 in free list (0 min, 128 max allowed) 128 hits, 0 fallbacks 128 max cache size, 128 in cache 0 hits in cache, 0 misses in cache GigabitEthernet0/0 buffers, 1536 bytes (total 192, permanent 192): 0 in free list (0 min, 192 max allowed) 192 hits, 0 fallbacks 192 max cache size, 128 in cache 5951463 hits in cache, 0 misses in cache GigabitEthernet0/1 buffers, 1536 bytes (total 192, permanent 192): 0 in free list (0 min, 192 max allowed) 192 hits, 0 fallbacks 192 max cache size, 128 in cache 5317461 hits in cache, 0 misses in cache ATM0/0/0 buffers, 1548 bytes (total 16, permanent 16): 0 in free list (8 min, 24 max allowed) 24 hits, 133 fallbacks 16 max cache size, 7 in cache 911406 hits in cache, 129 misses in cache NETGX_CACHE_BUFFERS buffers, 1700 bytes (total 256, permanent 256): 0 in free list (0 min, 256 max allowed) 256 hits, 0 fallbacks 256 max cache size, 256 in cache 0 hits in cache, 0 misses in cache

Reply to
Roel

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