Re: 2.6.15-mm4

[Brice Goglin]

Ingo Molnar wrote:

>* Brice Goglin <Brice.Goglin@xxxxxxxxxxxx> wrote:
>
>  
>
>>Hi Andrew,
>>
>>I get the following badness when booting mm4 on my thinkpad T43:
>>
>>hdaps: IBM ThinkPad T43 detected.
>>hdaps: initial latch check good (0x01).
>>Time: acpi_pm clocksource has been installed.
>>input: hdaps as /class/input/input3
>>hdaps: driver successfully loaded.
>>Non-volatile memory driver v1.2
>>Badness in __mutex_trylock_slowpath at kernel/mutex.c:281
>> [<c01251cf>] mutex_trylock+0x5a/0xe7
>> [<e09c02d2>] hdaps_inputdev_poll+0xd/0xbd [hdaps]
>> [<c011befc>] run_timer_softirq+0x105/0x147
>> [<c0118a0b>] __do_softirq+0x34/0x7d
>> [<c0118a76>] do_softirq+0x22/0x26
>> [<c0104a64>] do_IRQ+0x22/0x2a
>> [<c01033ce>] common_interrupt+0x1a/0x20
>>kjournald starting.  Commit interval 5 seconds
>>    
>>
>
>Could you try the patch below?
>
>  
>

Yes, it does fix it. What's the bug ? The mutexes are supposed to work
where semaphores do, aren't they ?

Brice

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