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| author |   Jan Beulich <jbeulich@novell.com> | 2007-02-13 13:26:26 +0100 |
|---|---|---|
| committer |   Andi Kleen <andi@basil.nowhere.org> | 2007-02-13 13:26:26 +0100 |
| commit | 22c5ace7290b792faf64ffe90cf933950fbf52db (patch) | |
| tree | 28f97a1f6bf22ed91424a8e7810e285bf18c9a79 /arch/x86_64 | |
| parent | [PATCH] i386: fix 32-bit ioctls on x64_32 (diff) | |
| download | linux-dev-22c5ace7290b792faf64ffe90cf933950fbf52db.tar.xz linux-dev-22c5ace7290b792faf64ffe90cf933950fbf52db.zip | |
[PATCH] i386: Fix broken CONFIG_COMPAT_VDSO on i386
After updating several machines to 2.6.20, I can't boot anymore the single
one of them that supports the NX bit and is configured as a 32-bit system.
My understanding is that the VDSO changes in 2.6.20-rc7 were not fully
cooked, in that with that config option enabled VDSO_SYM(x) now equals
x, meaning that an address in the fixmap area is now being passed to
apps via AT_SYSINFO. However, the page is mapped with PAGE_READONLY
rather than PAGE_READONLY_EXEC.
I'm not certain whether having app code go through the fixmap area is
intended, but in case it is here is the simple patch that makes things work
again.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/x86_64')
0 files changed, 0 insertions, 0 deletions