[Haiku-bugs] [Haiku] #3261: multi_audio KDL: page fault with interrupts disabled

[korli]

#3261: multi_audio KDL: page fault with interrupts disabled
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 Reporter:  umccullough    |       Owner:  korli         
     Type:  bug            |      Status:  new           
 Priority:  normal         |   Milestone:  R1            
Component:  Drivers/Audio  |     Version:  R1 development
Blockedby:                 |    Platform:  All           
 Blocking:                 |  
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Comment(by korli):

 Replying to [comment:7 axeld]:
 > > Maybe it's a bad idea to copy to userland with interrupts disabled.
 >
 > I can assure that this is indeed a bad idea. You either need to lock the
 memory (using lock_memory()) before copying (and turning off interrupts),
 or use user_memcpy() with enabled interrupts.

 I can do that, but I don't see many drivers which use user_memcpy(). This
 might need be reviewed globally then. What do you think ?

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Ticket URL: <http://dev.haiku-os.org/ticket/3261#comment:8>
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