Re: [BK PATCH] Add ext3 indexed directory (htree) support

Theodore Ts'o
2002-09-26T15:37:52Z

On Thu, Sep 26, 2002 at 12:41:54AM -0700, Ryan Cumming wrote:
> On September 25, 2002 22:57, Theodore Ts'o wrote:
> > On Wed, Sep 25, 2002 at 10:23:11PM -0700, Ryan Cumming wrote:
> > > It seems to be running stable now. Linux 2.4.19, UP Athlon, GCC 3.2.
> >
> > Just to humor me, can you try it with gcc 2.95.4? I just want to
> > eliminate one variable....
>
> Using GCC 2.95.4 seems to stabilize dir_index nicely, both before and after
> the hdparm -fD run. Only the kernel was recompiled with 2.95.4, I reused the
> original GCC 3.2 compiled e2fsprogs.

Hmm... I just tried biult 2.4.19 with the ext3 patch on my UP P3
machine, using GCC 3.2, and I wasn't able to replicate your problem.
(This was using Debian's gcc 3.2.1-0pre2 release from testing.)

What was the precise GCC 3.2 version you were using, and for what
architecture were you compiling for? As I recall P3 kernels should
run on Athlons, if memory serves me correctly. (I don't have any
Athlons at home, so if it's an Athlon-specific code generation bug,
I'll have problems replicating it.) Could you try compiling a kernel
for the P3 architecture using GCC 3.2, and see whether or not the
problem is there? This is just a shot in the dark, but....

- Ted