[uml-devel] Re: uml-patch-2.6.0

[Gerd Knorr <kraxel@bytesex.org>]

Sven Köhler <skoehler@upb.de> writes:

> > The 2.6.0 UML patch is available at
> > 	http://www.user-mode-linux.org/mirror/uml-patch-2.6.0-1.bz2
> 
> gcc -Wl,-T,arch/um/uml.lds.s -static -Wl,--wrap,malloc -Wl,--wrap,free
> -Wl,--wra
> p,calloc \
> 	-o linux arch/um/main.o vmlinux -L/usr/lib -lutil
> vmlinux(.text+0x5288): In function `mem_init':
> : undefined reference to `phys_page'
> vmlinux(.init.text+0x21f3): In function `kmap_init':
> : undefined reference to `pte_offset'
> collect2: ld returned 1 exit status

Disable CONFIG_HIGHMEM, then it does build.

I have a few more questions:

 * what is the status of kernel modules in 2.6 kernels?  It doesn't
   build without patching the kernel: One issue is some elf relocation
   defines being missing (R_386_32, R_386_PC32), making
   apply_relocate() fail to build.  The other issue is
   apply_alternatives() not being defined, making the final link fail.
   Trying to fix that, booting and trying to load modules leads to
   kernel panic.

 * Any known issues with 2.6.1 kernels?  Tried to apply the 2.6.0
   patch to 2.6.1 and fixup the one reject in arch/um/kernel/irq.c
   manually and the fs/proc/task_mmu.c build failure with a patch
   fished from this list.  But the resulting kernel fails to boot up
   the system.  I see the init start banner, then it stops.  Looking
   whats up with gdb shows that the fork syscall seems to hang in a
   endless loop, pagefaulting at the same address over and over ...

  Gerd

-- 
You have a new virus in /var/mail/kraxel


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