The return value captured is 0xe00002e8. I think Fernando was
correct in that the bus is stalled (since I now think activity has
stopped). I still do not know the reason, but it only seems to
happen when the device is plugged into an external usb hub, and even
then, the device behaves normally most of the time, but then suddenly
stops. I have not given it much thought for the last few weeks, and
had believed (in part because of the way our code is designed) that
the device was still sending data. However, I now think this is not
the case as I mentioned above. I would have to do a few more tests to
verify this, and this might take a week or so (my wife and I just had
our first child 5 days ago ... things are a little hectic! :-) )
This is probably not an issue of Apple's (since everything works
when plugged into the controller), but any insight from you guys
would defintely be helpful. For now, I am telling people not to use a
hub! :-D
As usual, thanks for all the help!
Robert.
Some other information:
1) Latest OS, G5.
2) 1152 bytes requested.
3) Interface #0 - Vendor-specific
Alternate Setting 0
Number of Endpoints 1
Interface Class: 255 (Vendor-specific)
Interface Subclass; 0 (Vendor-specific)
Interface Protocol: 0
Endpoint 0x81 - Bulk Input
Address: 0x81 (IN)
Attributes: 0x02 (Bulk no synchronization data
endpoint)
Max Packet Size: 32
Polling Interval: 1 ms
4) Here is a selection of the logs where I believe the error is seen:
1770.504 [6] AppleUSBHub[0x4258800]
(0x4b100000)::HubAreAllPortsDisconnectedOrSuspended - port 1 enabled
and not suspended
1770.643 [6] AppleUSBOHCI[0x413b800] Time to check for root hub
inactivity on bus 43
1771.057 [6] AppleUSBHub[0x4258600]::GetPortStatus for port 1,
status: 0x 303, change: 0x 0 - returning kIOReturnSuccess
1771.057 [6] AppleUSBHub[0x4258600]
(0x4b110000)::HubAreAllPortsDisconnectedOrSuspended - port 1 enabled
and not suspended
1772.643 [6] AppleUSBEHCI[0x4040000] Time to check for root hub
inactivity on bus 75
1772.643 [6] AppleUSBEHCI
[0x4040000]::RootHubAreAllPortsDisconnectedOrSuspended - port 1
enabled and not suspended
1772.643 [6] AppleUSBEHCI
[0x4040000]::RootHubAreAllPortsDisconnectedOrSuspended - port 1
CONNECTED, NOT ENABLED and not suspended - we used to allow this but
no more
1772.643 [6] AppleUSBEHCI::RHAPDOS: USBCMD(0x80b31) USBSTS(0xe000)
USBIntr(0x1f) PortSC(0x301005 0x301000 0x301005 0x303400 0x301000)
1773.532 [6] AppleUSBHub[0x48e1e00]::GetPortStatus for port 1,
status: 0x 103, change: 0x 0 - returning kIOReturnSuccess
1773.532 [6] AppleUSBHub[0x48e1e00]
(0x4b300000)::HubAreAllPortsDisconnectedOrSuspended - port 1 enabled
and not suspended
1776.505 [6] AppleUSBHub[0x4258800]::GetPortStatus for port 1,
status: 0x 103, change: 0x 0 - returning kIOReturnSuccess
1776.505 [6] AppleUSBHub[0x4258800]
(0x4b100000)::HubAreAllPortsDisconnectedOrSuspended - port 1 enabled
and not suspended
1777.058 [6] AppleUSBHub[0x4258600]::GetPortStatus for port 1,
status: 0x 303, change: 0x 0 - returning kIOReturnSuccess
1777.058 [6] AppleUSBHub[0x4258600]
(0x4b110000)::HubAreAllPortsDisconnectedOrSuspended - port 1 enabled
and not suspended
1777.644 [6] AppleUSBEHCI[0x4040000] Time to check for root hub
inactivity on bus 75
1777.644 [6] AppleUSBEHCI
[0x4040000]::RootHubAreAllPortsDisconnectedOrSuspended - port 1
enabled and not suspended
1777.644 [6] AppleUSBEHCI
[0x4040000]::RootHubAreAllPortsDisconnectedOrSuspended - port 1
CONNECTED, NOT ENABLED and not suspended - we used to allow this but
no more
1777.644 [6] AppleUSBEHCI::RHAPDOS: USBCMD(0x80b31) USBSTS(0xe000)
USBIntr(0x1f) PortSC(0x301005 0x301000 0x301005 0x303400 0x301000)
1777.750 [4] AppleUSBEHCI[0x4040000]::EHCIUIMDoDoneQueueProcessing -
TD (0x40c928c) - got transferStatus 0x8 with flags (0x82a08d52)
1777.750 [4] AppleUSBEHCI[0x4040000]::EHCIUIMDoDoneQueueProcessing -
got errror 0xe00002e8
1778.644 [5] AppleUSBEHCI[0x4040000]::CheckEDListForTimeouts - pED
(0x4256b00) - mismatched logical and physical - TD (L:0x4c9a214 - P:
0x2c84280) will be scavenged later
1778.644 [5] IOUSBControllerListElement[0x4256b00]::print -
_sharedPhysical[0x118180]
1778.644 [5] IOUSBControllerListElement::print - _sharedLogical
[0x522e5180]
1778.644 [5] IOUSBControllerListElement::print - _logicalNext[0x4252580]
1778.644 [5] AppleEHCIQueueHead::print - shared.nextQH[0x1180c2]
1778.644 [5] AppleEHCIQueueHead::print - shared.flags[0x200109]
1778.644 [5] AppleEHCIQueueHead::print - shared.splitFlags[0x40830000]
1778.644 [5] AppleEHCIQueueHead::print - shared.CurrqTDPtr[0x908340]
1778.644 [5] AppleEHCIQueueHead::print - shared.NextqTDPtr[0x2c84280]
1778.644 [5] AppleEHCIQueueHead::print - shared.AltqTDPtr[0x2c84280]
1778.644 [5] AppleEHCIQueueHead::print - shared.qTDFlags[0x82a08d52]
1778.644 [5] AppleEHCIQueueHead::print - shared.BuffPtr[0][0x4c80438]
1778.644 [5] AppleEHCIQueueHead::print - shared.BuffPtr[1][0x208d000]
1778.644 [5] AppleEHCIQueueHead::print - shared.BuffPtr[2][0]
1778.644 [5] AppleEHCIQueueHead::print - shared.BuffPtr[3][0]
1778.644 [5] AppleEHCIQueueHead::print - shared.BuffPtr[4][0]
1778.644 [5] AppleEHCIQueueHead::print - shared.extBuffPtr[0][0]
1778.644 [5] AppleEHCIQueueHead::print - shared.extBuffPtr[1][0]
1778.644 [5] AppleEHCIQueueHead::print - shared.extBuffPtr[2][0]
1778.644 [5] AppleEHCIQueueHead::print - shared.extBuffPtr[3][0]
1778.644 [5] AppleEHCIQueueHead::print - shared.extBuffPtr[4][0]
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: ------pTD at 0x4c9a214
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: shared.nextTD: 0x908480
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: shared.altTD: 0x908480
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: shared.flags: 0x4808d80
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: shared.BuffPtr0:
0x2378724
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: pEndpt: 0x4256b00
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: pPhysical: 0x2c84280
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: pLogicalNext: 0x40c9354
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: logicalBuffer:
0x4d16780
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: lastTDofTransaction: TRUE
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: ------pTD at 0x40c9354
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: shared.nextTD: 0x34a4400
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: shared.altTD: 0x34a4400
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: shared.flags: 0x4808d80
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: shared.BuffPtr0:
0x356cbf0
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: pEndpt: 0x4256b00
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: pPhysical: 0x908480
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: pLogicalNext: 0x4cf4304
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: logicalBuffer:
0x4bb3480
1778.644 [5] AppleUSBEHCI[0x4040000]::printTD: lastTDofTransaction: TRUE
1779.533 [6] AppleUSBHub[0x48e1e00]::GetPortStatus for port 1,
status: 0x 103, change: 0x 0 - returning kIOReturnSuccess
1779.533 [6] AppleUSBHub[0x48e1e00]
(0x4b300000)::HubAreAllPortsDisconnectedOrSuspended - port 1 enabled
and not suspended
1779.644 [5] AppleUSBEHCI[0x4040000]::CheckEDListForTimeouts - pED
(0x4256b00) - mismatched logical and physical - TD (L:0x4c9a214 - P:
0x2c84280) will be scavenged later
1779.644 [5] IOUSBControllerListElement[0x4256b00]::print -
_sharedPhysical[0x118180]
1779.644 [5] IOUSBControllerListElement::print - _sharedLogical
[0x522e5180]
1779.644 [5] IOUSBControllerListElement::print - _logicalNext[0x4252580]
1779.644 [5] AppleEHCIQueueHead::print - shared.nextQH[0x1180c2]
1779.644 [5] AppleEHCIQueueHead::print - shared.flags[0x200109]
1779.644 [5] AppleEHCIQueueHead::print - shared.splitFlags[0x40830000]
1779.644 [5] AppleEHCIQueueHead::print - shared.CurrqTDPtr[0x908340]
1779.644 [5] AppleEHCIQueueHead::print - shared.NextqTDPtr[0x2c84280]
1779.644 [5] AppleEHCIQueueHead::print - shared.AltqTDPtr[0x2c84280]
1779.644 [5] AppleEHCIQueueHead::print - shared.qTDFlags[0x82a08d52]
1779.644 [5] AppleEHCIQueueHead::print - shared.BuffPtr[0][0x4c80438]
1779.644 [5] AppleEHCIQueueHead::print - shared.BuffPtr[1][0x208d000]
1779.644 [5] AppleEHCIQueueHead::print - shared.BuffPtr[2][0]
1779.644 [5] AppleEHCIQueueHead::print - shared.BuffPtr[3][0]
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