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 copyin/copyout. -- John Baldwin <[EMAIL PROTECTED]> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-current" in the body of the message
