I have been trying to figure this out a while now with printk's all over my
kernel as well as adding kdb and tracing the int3 events.
I have tried various 2.6 kernels and so far all i have tried do this.
My current tests are on 2.6.22.10
I have a simple init binary I compiled static that is my init that is loaded
into an init file system. I am not using cpio but that did not seem to matter.
---- begin testinit.c
#include <stdio.h>
#include <unistd.h>
int main(int argc, char *argv[])
{
printf("Hello world!\n");
sleep(999999999);
}
---- end
I am using syslunux to start my kernel and appending the follwiing startup
command most of this is specific to my true init script but again im using a
"hello world" script to debug this for now.
append debug kidb=early console=ttyS0,384008n initrd=ufoinit.img
init=/testinit rw var_size=12M tmp_size=MAX log_size=16M root_size=64M
root=/dev/ram0 boot=/dev/hda1,msdos rw pkgpath=/dev/hda1:msdos rw verbose
DELAY=0 TEST=0 DEBUG=0 VERBOSE=0 UFO=root,etc,modules
On an intel CA810EEA 800mhz board or QEMU this runs fine but on the via boards
it dies right after "Freeing unused kernel memory: 132k freed"
on the 500mhz board it dies every time on the 800mhz it is random.
I have noticed that i get the elf binarly loading into user space with some
page_faults then I get blasted with do_notify_resume with 0x04 or
TIF_SIGPENDING over and over as if its in an infinite loop.
This begins shortly after load_elf_binary -> clear_user i think right after a
page_fault during the clear_user. I dont even know why that signal is being
sent on other hardware it never happens.
I am not even sure what do try next.
I have been trying to get my distro up on 2.6 for a while now and away from
2.4 but im currently stuck here.
Any and all suggestions and help welcome..
my kernel config is here
http://pastebin.cross-lfs.org/4561
Thanks in advance..
Regards
Sean Mathews
struct SoftwareProfessional {
double salary;
long lunches;
float jobs;
char unstable;
void work;
short tempers;
};
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