On 17-Mar-2002 Robert Watson wrote:
> On Sun, 17 Mar 2002, Alfred Perlstein wrote:
>> * Munehiro Matsuda <[EMAIL PROTECTED]> [020317 06:36] wrote:
>> > 
>> > PS. I got another message that happend when I ^C'ed a buildworld earlier, 
>> > with same kernel. May be it should go to Alfred Perlstein?
>> > 
>> > lock order reversal
>> >  1st 0xc198eec0 pipe mutex @ ../../../kern/sys_pipe.c:779
>> >  2nd 0xc0367fe0 Giant @ ../../../i386/i386/trap.c:716
>> I think there's a place where the pipe can fault on an address while
>> copying, I'll take a look at this. 
> Are there any assertions that should be in place for copyin/copyout
> requring fault handling?  It sounds like somewhere we need to assert that
> Giant is held...

More correct is that probably no locks other than Giant should be held for


John Baldwin <[EMAIL PROTECTED]>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/

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