Re: kernel losing printk messages?

From: Szekeres IstvÃn
Date: Tue Feb 26 2008 - 16:44:43 EST


Hi,

> I don't see this on 2.6.25-rc3. Does this happen only on boot? What if you
> do
>
> rmmod usbhid
> rmmod hid
> modprobe hid debug=1
> modprobe usbhid
>
> on already booted system?

Actually I did it the same way. I have no info about the output on boot.

> I guess in dmesg the output is also corrupted, right?

Interesting. Even after a dmesg -c -s 1000000 it contains only the end
of the story. This is the beginning of the dmesg output:

rusalka:~% dmesg | head
input.c: Mapping: Consumer.0230 ---> IGNORED
[85080.775297] drivers/hid/hid-input.c: Mapping: Consumer.0231 ---> IGNORED
[85080.775302] drivers/hid/hid-input.c: Mapping: Consumer.0232 ---> IGNORED
[85080.775308] drivers/hid/hid-input.c: Mapping: Consumer.0233 ---> Key.ScrollUp
[85080.775314] drivers/hid/hid-input.c: Mapping: Consumer.0234 --->
Key.ScrollDown

So the first line is corrupted. In the remaining of the output
(total=220 lines) I cannot see the evidence of corruption.

Regards,
Istvan
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