(Newport) console problems on IP22

(Newport) console problems on IP22

[Julien BLACHE]

Hi,

Martin Michlmayr offered a build of 2.6.29-rc5 for test to
debian-mips, and that kernel is showing console-related issues on my
IP22.

I'm not sure what's going, so here are my observations:
 - the Newport console is not detected anymore
 - getty process stuck

 root      1226 98.7  0.0      0     0 tty1     Rs+  19:48   9:22 [getty]

gettys on tty[2-6] might also be stuck somewhere. Can't strace the
getty on tty1 (operation not permitted) and strace on tty[2-6]
attaches to the process but doesn't print anything and is stuck from
here on. Cannot detach or anything. Processes are of course
unkillable.

 - dmesg fills up with 

 tty_release_dev: tty1: read/write wait queue active!


No keyboard/screen attached, serial console only.

Does that ring any bell wrt recent tty changes? Any idea?

JB.

-- 
Julien BLACHE                                   <http://www.jblache.org> 
<jb@jblache.org>                                  GPG KeyID 0xF5D65169

Re: (Newport) console problems on IP22

[Julien BLACHE]

Julien BLACHE <jb@jblache.org> wrote:

>  - getty process stuck
>
>  root      1226 98.7  0.0      0     0 tty1     Rs+  19:48   9:22 [getty]
>
> gettys on tty[2-6] might also be stuck somewhere. Can't strace the
> getty on tty1 (operation not permitted) and strace on tty[2-6]
> attaches to the process but doesn't print anything and is stuck from
> here on. Cannot detach or anything. Processes are of course
> unkillable.

Looks like the strace on the getty process on tty2 led to something
hanging to the point my serial console on ttyS0 was hung after that.

But I could still log in via SSH, so the kernel keeps running fine
despite that.

JB.

-- 
Julien BLACHE                                   <http://www.jblache.org> 
<jb@jblache.org>                                  GPG KeyID 0xF5D65169