Messages in this thread | | | Date | 5 Oct 2003 17:37:07 +0200 | Date | Sun, 5 Oct 2003 17:37:07 +0200 | From | Andi Kleen <> | Subject | Re: Oops linux 2.4.23-pre6 on amd64 |
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On Sun, Oct 05, 2003 at 03:29:38PM +0100, Tony Hoyle wrote: > Andi Kleen wrote: > > >To rule out the compiler you can use the compiler/binutils from > > > >ftp.suse.com:/pub/suse/x86-64/supplementary/CrossTools/8.1-i386/ > > > OK I built with that and here are the results: > > 1. The ehci-hcd driver fails in exactly the same place. > 2. It was still v. unstable, which led me to investigate why (since I'm > pretty sure the hardware is good & the suse compiler is supposed to be a > good one). I started stripping out options until eventually I found > that it's devfs that's the culprit - with that enabled I get random > compile errors every few seconds. With it disabled the compile works > perfectly, even with the debian compiler (tried -j20 and -j255 and both > passed).
Thanks for tracking this down. I would have never noticed because I don't use devfs.
Marcelo, any ideas? Do you get broken devfs reports for other 64bit architectures too?
AFAIK devfs is unmaintained and I don't really plan to maintain it myself. My proposal is to just disable it in the configuration for x86-64 for now.
> My first guess was you can't use a 32bit devfsd with a 64bit kernel, but > stopping devfsd didn't seem to make a whole lot of difference to the > stability... only compiling out the entire devfs system solved it.
Very likely the devfs code in the kernel is buggy. It is known to be race hell, I wouldn't be surprised if it has 64bit bugs too.
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