Re: Is it possible to implement interrupt time printk's reliably?
From: Jon Smirl
Date: Mon May 10 2004 - 17:23:47 EST
So how long is the delay between PCI probe time (when the framebuffer goes
active) and when early user space is up with initrd? Or is initrd up first? If
initrd is up first then early user space mode setting will occur at the same
time that it does currently.
--- James Simmons <jsimmons@xxxxxxxxxxxxx> wrote:
> > So how do printk's work in the very early boot? Is the video card active
> > the kernel probes it's module, or are these very early printk's being queued
> > until the video driver is probed?
> printk messages are stored in log_buf in printk.c. The console driver just
> reads the buffer and displays what is in the buffer. Look at printk.c
Do you Yahoo!?
Win a $20,000 Career Makeover at Yahoo! HotJobs
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/