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SubjectRe: User Mode Linux still broken in 2.6.23.1
On Thu, Nov 15, 2007 at 02:57:21PM -0600, Rob Landley wrote:
> On Thursday 15 November 2007 00:02:55 Greg KH wrote:
> > On Wed, Nov 14, 2007 at 11:58:15PM -0600, Rob Landley wrote:
> > > On Wednesday 14 November 2007 12:54:44 Greg KH wrote:
> > > > On Sat, Nov 03, 2007 at 11:51:50PM -0500, Rob Landley wrote:
> > > > > Building with the attached .config on x86-64, it does this:
> > > > >
> > > > > CC arch/um/kernel/smp.o
> > > > > In file included from include/asm/arch/tlb.h:11,
> > > > > from include/asm/tlb.h:4,
> > > > > from arch/um/kernel/smp.c:8:
> > > > > include/asm-generic/tlb.h: In function ???tlb_flush_mmu???:
> > > > > include/asm-generic/tlb.h:76: error: implicit declaration of function
> > > > > ???release_pages??? include/asm-generic/tlb.h: In function
> > > > > ???tlb_remove_page???:
> > > > > include/asm-generic/tlb.h:105: error: implicit declaration of
> > > > > function ???page_cache_release??? make[1]: *** [arch/um/kernel/smp.o]
> > > > > Error 1 make: *** [arch/um/kernel] Error 2
> > > > >
> > > > > I've been doing the following to fix it. I know it's not the right
> > > > > fix, (see the earlier thread about it at
> > > > > http://lkml.org/lkml/2007/8/24/441 ) but could the one line fix go
> > > > > into the -stable queue 2.6.23 while a proper fix goes into 2.6.24?
> > > >
> > > > I think the patches that I have just added to the stable queue for
> > > > 2.6.23.2 will fix this. If not, please let me know after testing.
> > >
> > > Where do I find these patches to test? I know where to find the stable
> > > releases, but not the "stable queue".
> > >
> > > Documentation/stable_kernel_rules.txt just says there _is_ a stable
> > > queue, not where to access it. Google's first hit for "linux stable
> > > queue" was
> > > http://git.kernel.org/?p=linux/kernel/git/chrisw/stable-queue.git;a=short
> > >log which apparently stopped updating in march...
> > >
> > > Happy to test the patch you mentioned, if I can figure out where to find
> > > it...
> >
> > It's at:
> > http://git.kernel.org/?p=linux/kernel/git/stable/stable-queue.git;a=summar
> >y
> >
> > Chris and I used to have separate queues, but that got messy, I suppose
> > we should just delete those old copies...
>
> In a freshly extracted 2.6.23 tarball, I applied the 4 uml-*.patch files from
> stable-queue/review-2.6.23-2 in sequence (all applied cleanly), and then did
> the following:
>
> cat > mini.conf << EOF &&
> CONFIG_BINFMT_ELF=y
> CONFIG_HOSTFS=y
> CONFIG_LBD=y
> CONFIG_BLK_DEV=y
> CONFIG_BLK_DEV_LOOP=y
> CONFIG_STDERR_CONSOLE=y
> CONFIG_UNIX98_PTYS=y
> CONFIG_EXT2_FS=y
> EOF
> make ARCH=um allnoconfig KCONFIG_ALLCONFIG=mini.conf
>
> Then I did:
>
> make -j 2 ARCH=um
>
> And it still breaks:
>
> CC arch/um/kernel/smp.o
> In file included from include/asm/arch/tlb.h:11,
> from include/asm/tlb.h:4,
> from arch/um/kernel/smp.c:8:
> include/asm-generic/tlb.h: In function ???tlb_flush_mmu???:
> include/asm-generic/tlb.h:76: error: implicit declaration of
> function ???release_pages???
> include/asm-generic/tlb.h: In function ???tlb_remove_page???:
> include/asm-generic/tlb.h:105: error: implicit declaration of
> function ???page_cache_release???
> make[1]: *** [arch/um/kernel/smp.o] Error 1
> make: *** [arch/um/kernel] Error 2
> make: *** Waiting for unfinished jobs....
>
> My .config is attached.

Hm, not good. I'll let Jeff handle this :)

thanks,

greg k-h
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