Messages in this thread | | | Date | Mon, 6 Sep 2004 11:43:21 +0100 | From | Russell King <> | Subject | Re: Linux serial console patch |
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On Mon, Sep 06, 2004 at 10:32:27AM +0000, Danny ter Haar wrote: > James Courtier-Dutton <James@superbug.demon.co.uk> wrote: > >> I have read your posts to lkml containing your serial console flow control > >> patches firstly for 2.4.x and then for 2.6.x kernels. > > > >Does this fix junk being output from the serial console? > >If one is using Pentium 4 HT, it seems that both CPU cores try to send > >characters to the serial port at the same time, resulting in lost > >characters as one CPU over writes the output from the other. > > We have multiple P4-HT enabled servers with debian installed & serial > console enabled (RPB++ ;-) and _i_ have never seen this behaviour.
I don't think this is a serial problem as such, but a problem with the kernel console subsystem (printk) itself. Maybe James can provide an example output to confirm exactly what he's seeing.
-- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 PCMCIA - http://pcmcia.arm.linux.org.uk/ 2.6 Serial core - 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/
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