Re: [Fwd: Re: [patch] Real-Time Preemption, -RT-2.6.9-mm1-V0.4]

[Michal Schmidt]

Hi,

This is after "modprobe -r uhci-hcd" on -V0.6.5:

BUG: sleeping function called from invalid context rmmod(5093) at 
kernel/mutex.c:30
in_atomic():1 [00000001], irqs_disabled():1
 [<c01060d3>] dump_stack+0x23/0x30 (20)
 [<c011b2e2>] __might_sleep+0xc2/0xe0 (36)
 [<c0134d78>] __mutex_lock+0x38/0x50 (24)
 [<c0134dad>] _mutex_lock+0x1d/0x20 (16)
 [<c01482c4>] do_drain+0x24/0x60 (32)
 [<c0148269>] smp_call_function_all_cpus+0x29/0x60 (28)
 [<c0148327>] drain_cpu_caches+0x27/0x60 (28)
 [<c014837c>] __cache_shrink+0x1c/0x100 (36)
 [<c014855d>] kmem_cache_destroy+0x9d/0x190 (28)
 [<f8a40e24>] uhci_hcd_cleanup+0x24/0x67 [uhci_hcd] (16)
 [<c0138c40>] sys_delete_module+0x120/0x150 (96)
 [<c0105293>] syscall_call+0x7/0xb (-8124)
---------------------------
| preempt count: 00000002 ]
| 2-level deep critical section nesting:
----------------------------------------
.. [<c0148263>] .... smp_call_function_all_cpus+0x23/0x60
.....[<c0148327>] ..   ( <= drain_cpu_caches+0x27/0x60)
.. [<c0136b0d>] .... print_traces+0x1d/0x90
.....[<c01060d3>] ..   ( <= dump_stack+0x23/0x30)


Michal
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