Hi,

I have a strong feeling that this list is not the best place
to ask this question. I apologize; please be kind and give
me a pointer to a more proper list.

When working on a isp116x usb host controller driver I
wanted to see, whether enabling the CONFIG_DEBUG_SPINLOCK
option would shed some new light to the driver. Now, when
running the isp116x-hcd against the usbtest tests, every now
and then I get a bunch of messages (say, one bunch for 10000
tests) from the sceduler as below. Has anyone a clue,
whether these messages indicate a problem and if yes then
whether they may be caused by the isp116x-hcd? The kernel is
2.6.10.

Thanks in advance,
Olav

# ./testusb -a -s 2048 -t 1 -c 10000
unknown speed   /proc/bus/usb/001/002
kernel/sched.c:2326: spin_lock(kernel/sched.c:c01a4d98)
already locked by kernel/sched.c/2584
kernel/sched.c:323: spin_lock(kernel/sched.c:c01a4d98)
already locked by kernel/sched.c/2584
kernel/sched.c:2781: spin_lock(kernel/printk.c:c017a4c8)
already locked by kernel/sched.c/2781
kernel/sched.c:2781: spin_lock(kernel/printk.c:c017a4c8)
already locked by kernel/sched.c/2781
kernel/sched.c:2781: spin_lock(kernel/printk.c:c017a4c8)
already locked by kernel/sched.c/2781
kernel/sched.c:2781: spin_lock(kernel/printk.c:c017a4c8)
already locked by kernel/sched.c/2781
kernel/sched.c:2781: spin_lock(kernel/printk.c:c017a4c8)
already locked by kernel/sched.c/2781
kernel/sched.c:2781: spin_lock(kernel/printk.c:c017a4c8)
already locked by kernel/sched.c/2781
kernel/sched.c:2781: spin_lock(kernel/printk.c:c017a4c8)
already locked by kernel/sched.c/2781
kernel/sched.c:2781: spin_lock(kernel/printk.c:c017a4c8)
already locked by kernel/sched.c/2781
kernel/sched.c:323: spin_lock(kernel/sched.c:c01a4d98)
already locked by kernel/sched.c/2584

/proc/bus/usb/001/002 test 1,   30.020000 secs
#




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