On Sunday 13 November 2005 02:36, Rob Landley wrote:
> I needed to patch two things to get 2.6.15-rc1 to build on an x86-64
> system running PLD linux:
>
> diff -ru linux-2.6.15-rc1/arch/um/Kconfig.x86_64
> linux-2.6.15-rc1-new/arch/um/Kconfig.x86_64 ---
> linux-2.6.15-rc1/arch/um/Kconfig.x86_64 2005-11-13 02:08:34.318108152 +0100
> +++ linux-2.6.15-rc1-new/arch/um/Kconfig.x86_64 2005-11-13
> 01:55:47.761861224 +0100 @@ -9,7 +9,7 @@
>  #XXX: this is so in the underlying arch, but it's wrong!!!
>  config RWSEM_GENERIC_SPINLOCK
>   bool
> - default y
> + default n

The patch for this (which fixes a couple of other things, too) is attached in 
this thread and has been sent to -mm (cc'ing uml-devel):

[uml-user] 2.6.14.git: user-mode-linux/x86_64 does not build
[uml-devel] [PATCH 4/9] uml - fixups for "reuse i386 cpu-specific tuning"

> diff -ru linux-2.6.15-rc1/arch/um/Makefile
> linux-2.6.15-rc1-new/arch/um/Makefile --- linux-2.6.15-rc1/arch/um/Makefile
> 2005-11-13 02:08:34.318108152 +0100 +++
> linux-2.6.15-rc1-new/arch/um/Makefile 2005-11-13 02:01:11.364014056 +0100
> @@ -107,7 +107,7 @@
>  prepare: $(ARCH_DIR)/include/kern_constants.h
>
>  LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static
> -LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib
> +LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib64
>
>  CPP_MODE-$(CONFIG_MODE_TT) := -DMODE_TT
>  CONFIG_KERNEL_STACK_ORDER ?= 2
Is that _needed_ on your system? I ask because it always worked and it's 
highly host distro-dependant, I guess.

> Then I ran it with my standard ./linux rootfstype=hostfs rw init=/bin/sh
> and got the following:


> Console initialized on /dev/tty0
> Failed to open 'root_fs', errno = 2
> VFS: Mounted root (hostfs filesystem).
> Stub registers -
>         0 - 9090909090909090
0x90 is the pad used to fill holes in binaries..., and it's strange it's 
there.

I guess that the dump is taken from the stack and that's how this is printed.

>         1 - 9090909090909090
>         2 - 9090909090909090
>         3 - 9090909090909090
>         4 - 9090909090909090
>         5 - 9090909090909090
>         6 - 9090909090909090
>         7 - 9090909090909090
>         8 - 9090909090909090
>         9 - 9090909090909090
>         10 - 0
>         11 - 9090909090909090
>         12 - 9090909090909090
>         13 - 9090909090909090
>         14 - 9090909090909090
>         15 - ffffffffffffffff
>         16 - 9090909090909090
>         17 - 33
>         18 - 292
>         19 - 9090909090909090
>         20 - 2b
> ...
> [Remaining registers omitted because Jeff's debug patch iterates with the
> wrong constants.  The corrected version produced only the first 20.]
> ...
> Kernel panic - not syncing: get_skas_faultinfo : failed to wait for
> SIGUSR1/SIGTRAP, pid = 10090, n = 10090, errno = 0, status = 0xb7f

-- 
Inform me of my mistakes, so I can keep imitating Homer Simpson's "Doh!".
Paolo Giarrusso, aka Blaisorblade (Skype ID "PaoloGiarrusso", ICQ 215621894)
http://www.user-mode-linux.org/~blaisorblade

        

        
                
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