Patch available for shared em interrupts (Re: em, bge, network problems survey.)

[Ade Lovett]

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On Oct 5, 2006, at 19:34 , Kris Kennaway wrote:
> Based on successful testing on a machine with shared em interrupt, the
> following patch should work around the problem *in that case*.

This solves the em(4) issue for me on a shared interrupt.  Prior to  
this, the network hang (no watchdog timeouts) was trivially  
reproducible with an NFS-mounted FreeBSD repository to two builder  
boxes, and running cvs -q upd on the ports tree at the same time.  
(the builder boxes also have em(4) interfaces, which I haven't  
patched, but they're running 7.0-CURRENT).  Everything is i386.

[root at foo:/dtbox] 739# vmstat -i
...
irq21: em0 acpi0                  965426        857
...

- -aDe

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