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| author | Robin Holt <holt@sgi.com> | 2005-12-05 20:02:31 -0600 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2005-12-06 09:12:34 -0800 |
| commit | bd1d6e2451f2bb0132416fda4d129c4f57a827bc (patch) | |
| tree | 64fc1ba7d4734ea5ecec8942795b32a32e4623a4 /arch/ia64/ia32/ia32priv.h | |
| parent | acb7f67280128a9ddaa756ff10212391d28caec4 (diff) | |
| download | blackbird-op-linux-bd1d6e2451f2bb0132416fda4d129c4f57a827bc.tar.gz blackbird-op-linux-bd1d6e2451f2bb0132416fda4d129c4f57a827bc.zip | |
[IA64] Change SET_PERSONALITY to comply with comment in binfmt_elf.c.
We have a customer application which trips a bug. The problem arises
when a driver attempts to call do_munmap on an area which is mapped, but
because current->thread.task_size has been set to 0xC0000000, the call
to do_munmap fails thinking it is an unmap beyond the user's address
space.
The comment in fs/binfmt_elf.c in load_elf_library() before the call
to SET_PERSONALITY() indicates that task_size must not be changed for
the running application until flush_thread, but is for ia64 executing
ia32 binaries.
This patch moves the setting of task_size from SET_PERSONALITY() to
flush_thread() as indicated. The customer application no longer is able
to trip the bug.
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/ia32/ia32priv.h')
| -rw-r--r-- | arch/ia64/ia32/ia32priv.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/ia64/ia32/ia32priv.h b/arch/ia64/ia32/ia32priv.h index e3e9290e3ff2..68ceb4e690c7 100644 --- a/arch/ia64/ia32/ia32priv.h +++ b/arch/ia64/ia32/ia32priv.h @@ -305,7 +305,6 @@ struct old_linux32_dirent { #define ELF_DATA ELFDATA2LSB #define ELF_ARCH EM_386 -#define IA32_PAGE_OFFSET 0xc0000000 #define IA32_STACK_TOP IA32_PAGE_OFFSET #define IA32_GATE_OFFSET IA32_PAGE_OFFSET #define IA32_GATE_END IA32_PAGE_OFFSET + PAGE_SIZE |
