compat.c is only included if CONFIG_SYSVIPC_COMPAT is defined. This isn't anywhere in 2.6.16.26. Is this what you're refering to? Chad 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? > > Ralf > > 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 <kreese@xxxxxxxxxxxxxxxxxx> Cavium Networks Phone: 650 - 623 - 7038 Cell: 321 - 438 - 7753
