On Sat, 4 May 2002, David O'Brien wrote:

> On Sat, May 04, 2002 at 09:26:33PM +0100, Brian Somers wrote:
> > Try disabling -pipe when building the compiler.  This seems to make
> > things more stable here (CFLAGS=-O in /etc/make.conf) - as if
> > building the kernel with -pipe sometimes produces a kernel that
> > subsequently murders the compiler with sig11/sig4 all the time.
> If so, then we have a bug in our pipe ('|', not 'gcc -pipe')
> implimentation.

I have seen signs of a generic pipe bug in vi: vi's i/o buffer for
pipes is sometimes invalid (kern/sys_pipe.c:pipe_build_write_buffer()
gets an error faulting it in).  This doesn't usually cause signals;
it just confuses vi.


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