On 2005.07.29 13:18:03 +0000, khaqq wrote:
| On Wed, 27 Jul 2005 03:49:06 +0100
| Rui Paulo <rpaulo@NetBSD.org> wrote:
| 
| > On 2005.07.26 20:15:21 +0000, mcesare@nc.rr.com wrote:
| > | I've seen this on two different machines now with hme 100BaseT cards
| > | 
| > | Configuring network interfaces: le0 hme0stray interrupt ipl 0x7
| > | pc=0xf0183838 npc=0xf018383c psr=400001c2<S,PS>
| > | 
| > | both get this just after configuring hme0
| > | never see it again.
| > | Is this normal ?
| > 
| > http://netbsd.org/Documentation/kernel/
| > 
| >     What does Stray interrupt on IRQ 7 mean? (top)                              
| >                                                                                 
| >    The "Stray interrupt on IRQ 7" kernel message means that the interrupt       
| >    controller reported an unmasked interrupt on IRQ 7, but no driver attached   
| >    to that IRQ 'claimed' it.                                                    
| > 
| >    ...
| > 
| > I think this also applies to SPARC, but with IPLs, not IRQs.
| > 
| > Anyway, maybe hme(4) is missing some interrupts ?
| 
| This happens here quite often under full network load. The CPU seems to
| spend 70-80% of its cycles in "interrupt" according to top (interrupt handler ?).
| Transferring about 1GB through the box makes the error happen about 2 or 3
| times.
| That's on a SS5/110 with 32MB of RAM, never seems to swap, QFE 2.0,
| NetBSD 2.0.
| What would make it "miss" some interrupts ?
| 
| khaqq
| 
| # dmesg | grep "ipl 7"
| hme0 at sbus0 slot 1 offset 0x8c00000 level 4 (ipl 7): Sun Happy Meal Ethernet (SUNW,hme)
| hme1 at sbus0 slot 1 offset 0x8c10000 level 4 (ipl 7): Sun Happy Meal Ethernet (SUNW,hme)
| hme2 at sbus0 slot 1 offset 0x8c20000 level 4 (ipl 7): Sun Happy Meal Ethernet (SUNW,hme)
| hme3 at sbus0 slot 1 offset 0x8c30000 level 4 (ipl 7): Sun Happy Meal Ethernet (SUNW,hme)
| 
| # dmesg | grep "ipl 0x7"
| stray interrupt ipl 0x7 pc=0xf0009ee8 npc=0xf0009eec psr=44000c7<S,PS>
| stray interrupt ipl 0x7 pc=0xf0009ef4 npc=0xf0009ef8 psr=44000c7<S,PS>
| stray interrupt ipl 0x7 pc=0xf0009eec npc=0xf0009ef0 psr=44000c7<S,PS>
| stray interrupt ipl 0x7 pc=0xf0009ee8 npc=0xf0009eec psr=44000c7<S,PS>
| stray interrupt ipl 0x7 pc=0xf0009efc npc=0xf0009f00 psr=44000c7<S,PS>
| (...)

Well, I consider this "normal". You'll get a panic if you
"get 10 interrupts in 10 seconds". It's probably not a so fast box to handle
100Mbit.

		-- Rui Paulo