Hi Alan, On Wed, May 07, 2014 at 05:41:51PM +0100, One Thousand Gnomes wrote: > > Possibly, but I fear we'd incur the wrath of Alan after reading that other > > thread. Having a CONFIG_ option or similar to control the amount of printing > > we do is very similar to the command-line option Jan proposed in his series. > > I've nothing against a configuration option, and having a printk that > queued most stuff to the serial IRQ handler on overflow and a boot option > of printk=synchronous for debug work would be awesome in my book. Many end > production boxes don't give a toss about losing the odd bit of data they > just need to shift the logs somewhere for filing.
Ok, I'll revisit this with a command-line option for the debug case. Thanks. > All these "clever" approaches just seem to me to be ever more convoluted > attempts to fail to deal with the simple reality that if you put more > down the sewage pipe than fits it has to overflow somewhere. > > Our tty drivers have a fifo, our tty drivers have an IRQ driven write > operation. It seems silly to be adding magic to solve the problem rather > than just using it (and in turn getting a ton of other consoles for free, > and being able to take GregKH's current usb console hack out) Hmm, I'm not at all familiar with the tty layer, so I'd have to go and take a look. Jan, did you look at this at all? Will -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
