On Mon, 2006-11-27 at 13:36 +0900, Tetsuo Handa wrote: > Hello. > > I found the following code fails on arm processor, > while it works on x86 processor. Hi, clone() is not a function that normal userspace should call; it's behavior is very platform specific and it's use should really be confined to glibc and similar C libraries! > The above code works if I use malloc(3). > Is passing 'statically' allocated stack memory to clone(2) illegal? Stacks need a minimum level of alignment in memory; the alignment is different on different systems (on x86 it's 16 bytes in practice to be reliable, but 4 will already appear to work until you do fancy things). I don't know what ARM has, but I'd not be surprised if it's more than 4 as well. The code you pasted will at best only do a 4 byte alignment..... so it's even broken on x86 in subtle ways :) Greetings, Arjan van de Ven -- if you want to mail me at work (you don't), use arjan (at) linux.intel.com Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
