Messages in this thread | | | Date | Fri, 31 Jan 2003 15:05:41 +0000 | From | Dave Jones <> | Subject | Re: [PATCH] 2.5.59 morse code panics |
| |
On Fri, Jan 31, 2003 at 09:40:27AM -0500, Valdis.Kletnieks@vt.edu wrote:
> I have to do most of my kernel hacking at home, on my own time. So I'm > sitting there with a laptop and no second machine. Now, if the intent is > to say "Don't bother doing anything that might require debugging unless you > can afford 2 machines", that's OK - but let's be open about that requirement. > And has been pointed out, some laptops don't even *HAVE* a serial port.
So go see Ingo's netconsole. (Which admittedly only supports certain net drivers). Or one of the crashdump facilities. All of which is far more reliable and useful than sitting there with a microphone.
> There's a *REASON* that IBM RS/6K boxes have at least a little 3-digit LED > display - during boot or a panic, even if you can't trust the console drivers > anymore, you can still output *something*.
There's no reason to trust morse panic output more than console output. If something has scribbled over kernel space memory, you're screwed anyway. It's hit or miss whether your panic-method-de-jour has been stomped on.
Dave
-- | Dave Jones. http://www.codemonkey.org.uk - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |