[parisc-linux] User space locks -- what's wrong

[John David Anglin]

> That's absolutely bizarre. Can you include steps for us toolchain
> newbies to reproduce this? I'd love to try and trace down why this is
> occuring. It could be a problem indicative of something very funky
> occuring in our kernel.

There definitely are some funky things going on in the kernel.
For example, if I try to build GCC with 'make -j 4 bootstrap' on
gsyprf11, about 50% of the time make dies because of a malloc data
corruption or a shell problem.  However, I never see this with
just 'make bootstrap'.

It's crossed my mind that locking could break if there is a memory
aliasing issue,

Dave
-- 
J. David Anglin                                  dave.anglin at nrc-cnrc.gc.ca
National Research Council of Canada              (613) 990-0752 (FAX: 952-6602)