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Re: shmat apparently broken on n32 MIPS.
On Fri, Dec 01, 2006 at 11:36:59AM -0800, Kaz Kylheku wrote:
> The shmat() function is behaving strangely. In the kernel, do_shmat() is
> working fine. It returns 0, and sets *raddr to a valid value from
> do_mmap. The value is in the 32 bit address range, respecting the task
> size of the caller.
>
mips doesn't appear to be using the generic compat_sys_shmat wrapper.
I'd look at the differences between this and another architecture
inside the kernel. Which ABI are you using? 64-o32 seems to use
the ipc demuxer, while 64-n32 seems to use a custom coded shmat.
Probably a good starting place for where to find what's going wrong.
Cheers,
Kyle