Re: [parisc-linux] kernel update bug?

[Matthew Wilcox <willy@debian.org>]

On Thu, Jan 23, 2003 at 10:19:00PM +0100, b.gunreben wrote:
> Now the reason: I found, that with kernel 2.4.9, there were 3 serial devices
> found
> 
> /dev/ttyS0 uart 16550A port 0x0000 irq 90 baud_base 454545 spd_normal
> /dev/ttyS1 uart 16550A port 0x0000 irq 106 baud_base 454545 spd_normal
> /dev/ttyS2 uart 16550A port 0x0000 irq 170 baud_base 454545 spd_normal
> 
> the later kernel finds only the first two of these interfaces, and restarts
> when restoring the settings of /dev/ttyS2. Later it crashes completely of
> course. I could fix this behaviour by commenting out the last line in
> /etc/serial.conf.
> 
> Now my question: should kernel 2.4.20 find two or three serial devices on a
> C360, and why does the kernel crash if setserial tries to configure a
> (nonexistant?) device?

Well, how many serial ports do you have?  ;-)

It was a bug up till (i think) a 2.4.17 kernel that we found a ghost
serial port.  And setserial is a broken piece of crap that will crash
the machine if it tries to set serial ports that don't exist.

-- 
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