Re: Linux 2.0.31pre9 - Glimpse 4.0 seg faults?

Chris Evans (chris@ferret.lmh.ox.ac.uk)
Wed, 17 Sep 1997 15:10:27 +0100 (BST)


On Tue, 16 Sep 1997, Robert Wuest wrote:

> Hi,
>
> I hope this is the right place for this.
> Glimpse (4.0b1) was working fine with 2.0.29. Now it always gives
> "Segmentation fault (core dumped)".
> Here's the end of strace output:

> munmap(0x4000a000, 4096) = 0
> --- SIGSEGV (Segmentation fault) ---
> +++ killed by SIGSEGV +++

Hmmmm, possibly related to the squake-1.1 segfault under 2.0.31pre9. My
squake segfault occurs _regardless_ of whether I specify "-nosound" or
not. It is not sound related. The last thing I see with strace is a couple
of "mprotect()" calls I think.

However if I load the system (ie. make -j), then squake-1.1 _will_ start
up and run fine. There is probably a race condition, either in squake or
recent kernels. As I have mentioned before, all is fine with 2.1.54, and
2.0.30pre2.

What significant mm and/or buffer changes have been made between early
pre2.0.31's and pre9??

Cheers
Chris