Re: Oops assist...

Pavel Machek (pavel@bug.ucw.cz)
Thu, 6 May 1999 23:55:59 +0200


Hi!

> > Wouldn't it be quite reasonable to make "Reboot on Oops" an config-option
> > or a sysctl?
>
> Obviously, yes. (I think that reboot on Oops should be the default).

No. I've seen many oopses which were completely harmless (few
processes died, who cares? :-).

I advocated putting 10sec delay after oops. It is good so at least you
can see the oops and you can remeber IP if you are fast enough
;-). Much better than quickly rebooting machine. If you extend this
delay to 10min, user will have plenty of time to copy data onto paper
;-)))).

--- clean/arch/i386/kernel/traps.c Fri Feb 26 18:39:57 1999
+++ linux/arch/i386/kernel/traps.c Fri Feb 26 11:49:39 1999
@@ -201,6 +201,18 @@
spin_lock_irq(&die_lock);
printk("%s: %04lx\n", str, err & 0xffff);
show_registers(regs);
+ {
+ long flags;
+ int i;
+ save_flags(flags); cli();
+ printk( "Oops -> waiting" );
+ for(i=0; i<10; i++) {
+ mdelay(1000);
+ printk( "." );
+ }
+ printk( "\n" );
+ restore_flags(flags);
+ }
spin_unlock_irq(&die_lock);
do_exit(SIGSEGV);
}

> IMHO, the swapfile is the best & portable solution: NT uses
> the swapfile, I've read the Solaris uses the swapfile, too.

Unfortunately, there were cases when this destroyed valuable data.

-- 
I'm really pavel@ucw.cz. Look at http://195.113.31.123/~pavel.          Pavel
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