qemu trouble...

Tim Niemeyer tim.niemeyer at mastersword.de
Wed Jul 25 15:28:50 CEST 2007


Hello

I have also some problems with qemu.
I have build everything with the MokoMakefile and it works really nice!
;-)

But when i want to use the gadged system to ssh into my moko, i get some
trouble...
I figured out that i had to recompile my default Debian Etch Kernel an did
it. Now it seems to be all like in the wiki describes:
http://wiki.openmoko.org/wiki/OpenMoko_under_QEMU#Setting_up_USB_connection

Has anyone an idea for me? Is something wrong?

But when i then do the "usb_add gadget:1" command the qemu repeats:

###############################################################################
gadget_read: event error: 4
gadget_read: event error: 4
gadget_read: event error: 4
gadget_read: event error: 4
gadget_read: event error: 4
###############################################################################


In my Syslog i can see many entrys:

###############################################################################
dummy_udc dummy_udc: binding gadget driver 'gadgetfs'
gadgetfs: bound to dummy_udc driver
dummy_hcd dummy_hcd: port status 0x00010101 has changes
dummy_hcd dummy_hcd: port status 0x00010101 has changes
dummy_hcd dummy_hcd: port status 0x00100503 has changes
usb 6-1: new high speed USB device using dummy_hcd and address 5
gadgetfs: connected
gadgetfs: disconnected
dummy_hcd dummy_hcd: port status 0x00100503 has changes
dummy_udc dummy_udc: set_address = 5
gadgetfs: connected
dummy_udc dummy_udc: enabled ep-a (ep3in-intr) maxpacket 16
dummy_udc dummy_udc: disabled ep-a
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
dummy_udc dummy_udc: stale req = dd372840
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
dummy_udc dummy_udc: stale req = dd372840
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
dummy_udc dummy_udc: stale req = dd372840
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
dummy_udc dummy_udc: stale req = dd372840
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
dummy_udc dummy_udc: stale req = dd372840
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
usb 6-1: string descriptor 0 read error: -32
dummy_udc dummy_udc: stale req = dd372840
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
dummy_udc dummy_udc: stale req = dd372840
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
dummy_udc dummy_udc: stale req = dd372840
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
dummy_udc dummy_udc: stale req = dd372840
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
dummy_udc dummy_udc: stale req = dd372840
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
dummy_udc dummy_udc: stale req = dd372840
dummy_hcd dummy_hcd: ep ep0 halted, urb e912d5c0
usb 6-1: string descriptor 0 read error: -32
usb 6-1: configuration #1 chosen from 1 choice
gadgetfs: configuration #1
###############################################################################


This seems to repeat till i kill qemu and see this in my syslog:

###############################################################################
BUG: warning at drivers/usb/gadget/dummy_hcd.c:49 8/dummy_free_request()
 [<f8cf156c>] dummy_free_request+0x41/0x4e [dummy _hcd]
 [<f8cf7413>] gadgetfs_unbind+0x47/0x50 [gadgetfs ]
 [<f8cf13a6>] usb_gadget_unregister_driver+0x79/0 xd2 [dummy_hcd]
 [<f8cf721f>] dev_release+0x11/0x44 [gadgetfs]
 [<c015ae41>] __fput+0x8a/0x13f
 [<c01589aa>] filp_close+0x4e/0x54
 [<c011ead3>] put_files_struct+0x65/0xa7
 [<c011fa43>] do_exit+0x1d1/0x71b
 [<c0120003>] sys_exit_group+0x0/0xd
 [<c0127a6d>] get_signal_to_deliver+0x395/0x3bc
 [<c01023a6>] do_notify_resume+0x71/0x5d7
 [<c0126fc1>] group_send_sig_info+0x4e/0x56
 [<c0117778>] default_wake_function+0x0/0xc
 [<c0124657>] do_gettimeofday+0x31/0xce
 [<c0131ffc>] sys_futex+0xdc/0xf1
 [<c0102d0a>] work_notifysig+0x13/0x19
dummy_hcd dummy_hcd: port status 0x00010100 has c hanges
dummy_hcd dummy_hcd: port status 0x00010100 has c hanges
usb 6-1: USB disconnect, address 5
###############################################################################

Thanks...

Tim Niemeyer
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