Re: RT patch breaks X86_64 build

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



* Michal Schmidt <[email protected]> wrote:

> Ingo Molnar wrote:
> >hm, one difference is that i'm running a 64-bit kernel but 32-bit 
> >userspace (FC3-ish).
> 
> Yes, that's it! I've just successfully booted into 32-bit userspace (I 
> have a separate partition with old 32-bit Debian) with x86_64 kernel and 
> LATENCY_TRACE enabled. Everything seemed to work.
> Then I mounted my normal root partition under /mnt/64 and tried
>   chroot /mnt/64
> I got a SIGSEGV. Then I copied some simple binaries from /mnt/64/bin to 
> /root/test/bin and some necessary libraries to /root/test/lib and did
>   chroot /root/test
> I could run 64-bit sash, ls, cat, date, mkdir - it worked. 64-bit bash 
> however segfaulted.

perhaps my mcount stubs dont save enough registers, leading to register 
corruption on 64-bit userspace? In that case i'd expect more breakage 
though, so maybe it's something more subtle.

	Ingo
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

[Index of Archives]     [Kernel Newbies]     [Netfilter]     [Bugtraq]     [Photo]     [Stuff]     [Gimp]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Video 4 Linux]     [Linux for the blind]     [Linux Resources]
  Powered by Linux