Re: System reset on Kernel 2.4.10

["Petr Vandrovec" <VANDROVE@vc.cvut.cz>]

On  2 Oct 01 at 23:52, VDA wrote:
> V> Straced vmlinux does not reboot.
> V> Kernel: 2.4.10+ext3+preempt
> 
> Well... sometimes it reboots too.
> Once it rebooted ~10 mins after strace (system was at zero load).
> Also it rebooted after two strace's in succession.

Look at fs/binfmt_elf.c, at line 642 (in -ac2). There is

error = elf_map(....)

but nobody bothers with checking error value, it even tries it
to use as an offset if stars are in wrong constellation.
If you could add these lines below the call:

if ((unsigned long)error >= (unsigned long)(-256)) {
  set_fs(old_fs);
  printk(KERN_DEBUG "Something went wrong with elf_map()\n");
  kfree(elf_phdata);
  send_sig(SIGSEGV, current, 0);
  return 0;
}

and then report results...
                                    Petr Vandrovec
                                    (not willing to test it myself)