#1017: "rx FIFO overrun" prevents traffic from flowing
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Reporter: [EMAIL PROTECTED] | Owner:
Type: defect | Status: new
Priority: critical | Milestone:
Component: madwifi: driver | Version: trunk
Resolution: | Keywords:
Patch_attached: 0 |
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Comment (by [EMAIL PROTECTED]):
It's interesting that a master abort is thrown, but apparently never
cleared.
For troubleshooting's sake, if anyone can, try throwing into the kernel
the bridge control flag PCI_BRIDGE_CTL_MASTER_ABORT. That should force a
target abort to be thrown to the device instead; the device may not like
it, but it should then just restart -- a temporary outage instead of a
permanent one. And then the problem will at least be narrowed, and we can
look for why the bus master is trying to grab the bus when it can't. May
be worth trying.
There's a patch for 2.6.11 at http:
//groups.google.com/group/fa.linux.kernel/msg/0d5c4a2c4208c560 that makes
that bus control flag available at boot time. That page also explains
some of the problems stemming from Master Abort problems and devices not
handling them and/or target aborts properly.
--
Ticket URL: <http://madwifi.org/ticket/1017#comment:104>
madwifi.org <http://madwifi.org/>
Multiband Atheros Driver for Wireless Fidelity
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