[haiku-bugs] [Haiku] #11153: KDL in usb module (EHCI)
- From: "jackburton" <trac@xxxxxxxxxxxx>
- Date: Sat, 23 Aug 2014 19:03:48 -0000
#11153: KDL in usb module (EHCI)
-------------------------+------------------------------
Reporter: jackburton | Owner: mmlr
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Drivers/USB | Version: R1/Development
Keywords: ehci | Blocked By:
Blocking: | Has a Patch: 0
Platform: All |
-------------------------+------------------------------
Recently I resumed development on a wireless usb dongle driver. Last time
I tried it, a couple of months ago, I was able to load the firmware and
reset the dongle.
Now, every time I open the dongle, I get a KDL in the usb bus manager.
I'm probably doing something wrong, but I wonder if the recent changes in
the usb stack broke something.
The KDL shows that EHCI::FinishThread() is called with a NULL parameter,
which is then dereferenced in EHCI::FinishTransfer().
Any idea ?
My driver code is here:
https://github.com/jackburton79/haiku_ralink_usb/blob/master/ralink_usb.cpp
The usb function which causes the KDL is this one:
size_t actualLength;
status_t status = gUSBModule->send_request(fDevice,
USB_REQTYPE_VENDOR | USB_REQTYPE_DEVICE_OUT,
RT2870_RESET, 8, 0, 0, NULL, &actualLength);
if (status != B_OK) {
TRACE_ALWAYS(DRIVER_NAME": firmware reset failed\n");
free(buffer);
return status;
}
In the syslog I get this:
My driver logs:
KERN: ralink_usb: open device net/usb_ralink/0 index 0, KERN:
RalinkUSB::Open()
KERN: ralink_usb: selected firmware /system/non-
packaged/data/firmware/ralink/rt2870.bin
KERN: ralink_usb: loading firmware...
KERN: ralink_usb: firmware reset...
this is the USB module:
KERN: usb error control pipe 82: timeout waiting for queued request to
complete
Last message repeated 1 time
KERN: vm_page_fault: kernel thread accessing invalid user memory!
On boot, the only ehci logs are these:
KERN: usb ehci -1: successfully took ownership of the host controller
KERN: sitd entry size 64, itd entry size 128
KERN: usb ehci -1: successfully started the controller
KERN: add_memory_type_range(563, 0xfc404000, 0x1000, 0)
KERN: usb ehci -1: successfully took ownership of the host controller
KERN: sitd entry size 64, itd entry size 128
KERN: usb ehci -1: successfully started the controller
KERN: usb hub 17: port 1: device removed
KERN: usb hub 22: port 0: device removed
KERN: usb hub 32: port 3: new device connected
KERN: usb ehci -1: fullspeed device connected, giving up port ownership
KERN: usb hub 32: port 4: new device connected
Is the "-1" index correct ?
--
Ticket URL: <https://dev.haiku-os.org/ticket/11153>
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