Hello!
I had some problems running linux 2.6.19.1 as client UML. When
starting 'mapping mmap stub failed, errno = -12' is printed - with an
additional Kernel panic. In the file arch/um/Kconfig.i386 the
definition of STUB_CODE and STUB_DATA depend on the configuration
symbol HOST_2G_2G which has gone sometimes in between 2.6.18.6 and
2.6.19.1.
The applied patch solves the problem for me.
Kind regards
Andreas Florath
diff -u linux-2.6.19.1_orig/arch/um/Kconfig.i386
linux-2.6.19.1/arch/um/Kconfig.i386
--- linux-2.6.19.1_orig/arch/um/Kconfig.i386 2006-12-11
20:32:53.000000000 +0100
+++ linux-2.6.19.1/arch/um/Kconfig.i386 2007-01-10 09:32:01.000000000 +0100
@@ -67,13 +67,13 @@
config STUB_CODE
hex
- default 0xbfffe000 if !HOST_2G_2G
- default 0x7fffe000 if HOST_2G_2G
+ default 0xbfffe000 if !HOST_VMSPLIT_2G
+ default 0x7fffe000 if HOST_VMSPLIT_2G
config STUB_DATA
hex
- default 0xbffff000 if !HOST_2G_2G
- default 0x7ffff000 if HOST_2G_2G
+ default 0xbffff000 if !HOST_VMSPLIT_2G
+ default 0x7ffff000 if HOST_VMSPLIT_2G
config STUB_START
hex
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