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Subject: Re: [linux-usb-devel] Re: [BK PATCH] USB changes for 2.5.34
From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: David Brownell <david-b@pacbell.net>,
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On Tue, 2002-09-10 at 17:51, Linus Torvalds wrote:
> (In fact, on UP a BUG() tends to be quite usable just about anywhere 
> except in an interrupt handler: there may be some local locks like 
> directory semaphores etc that are held and not released, but _most_ of the 
> time the machine is quite usable. SMP really does make things harder to 
> debug even quite apart from the races it introduces. Sad.)

It drops you politely into the kernel debugger, you fix up the values
and step over it. If you want to debug with zen mind power and printk
feel free. For the rest of us BUG() is fine on SMP

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