compat.c is only included if CONFIG_SYSVIPC_COMPAT is defined. This
isn't anywhere in 18.104.22.168. Is this what you're refering to?
Ralf Baechle wrote:
> On Tue, Jul 25, 2006 at 05:32:41PM -0700, Chad Reese wrote:
>>If you're running a 64bit kernel with N32 userspace, shmctl will corrupt
>>memory in userspace. When copy_shmid_to_user() is called, it copies the
>>entire kernel shmid_ds into userspace. For a 64bit kernel, this is 88
>>bytes. In N32 userspace it is 76 bytes.
>>My hack to get around the problem is attached, but I expect someone here
>>will be able to come up with a better fix. shmid_ds contains a lot of
>>members that are marked unused. Are these really useless?
> Can you try below patch?
> diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
> index 98abbc5..605d393 100644
> --- a/arch/mips/kernel/scall64-n32.S
> +++ b/arch/mips/kernel/scall64-n32.S
> @@ -150,7 +150,7 @@ EXPORT(sysn32_call_table)
> PTR sys_madvise
> PTR sys_shmget
> PTR sys32_shmat
> - PTR sys_shmctl /* 6030 */
> + PTR compat_sys_shmctl /* 6030 */
> PTR sys_dup
> PTR sys_dup2
> PTR sys_pause
Chad Reese <firstname.lastname@example.org>
Phone: 650 - 623 - 7038
Cell: 321 - 438 - 7753