On Thu, 19 Jan 2006, P. Christeas wrote: > On Tuesday 17 January 2006 2:26 pm, P. Christeas wrote: > > Does that apply to gcc-4.0.2 as well? It is mentioned in linux > > documentation that -funit-at-a-time is safe as of gcc-4.x. Is there (I'm > > not a MIPS expert) a way to verify whether gcc produces wrong instructions? > > I've had a similar problem (I only try with gcc 4, because I compile linux > > 2.6) and is reduced when I use -fno-unit-at-a-time. Still, I have > > instability, which now appears less often. > > I've tried the '-fno-unit-at-a-time' solution (for the whole kernel) and > > the 'pop/push' at interrupt.h fix. > > > Just to let you know: > In a very interesting twist, gcc4.0.2 produces a faulty kernel with the 2.4.31 > kernel (as the latter is provided from the hardware's manufacturer). > I'm validating gcc and binutils at the moment. That's why 2 days ago this one went in in 2.4.x: | [PATCH] document that gcc 4 is not supported | | gcc 4 is not supported for compiling kernel 2.4, and I don't see any | compelling reason why kernel 2.4 should ever be adapted to gcc 4. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds