[BRLTTY] BRLTTY Implicated In Resource Exhaustion

[Jason White]

Sabahattin Gucukoglu <mail at sabahattin-gucukoglu.com> wrote:
> I don't know which resource, though.  All I know is that the kernel keeps
> running, and those services which don't require new threads and processes
> keep running (DNS).  But the keyboard is unusable, even for ctrl+alt+del,
> and so the only option is to hard reboot the box.

Can you log in over ssh from another machine?

Have you tried
echo 1 > /proc/sys/kernel/sched_autogroup_enabled
to invoke the per session group scheduling in 2.6.38, which might help if it's
a CPU issue?

Have you collected information from top, vmstat, ps, etc., to determine which
processes are using the most memory and CPU?
> 
> Uname -a output: Linux Bloodstone 2.6.38-2-686 #1 SMP Sat Apr 23 19:04:20
> UTC 2011 i686 GNU/Linux (The latest Debian unstable kernel.)
> 
> BRLTTY 4.2; BrlAPI server 0.5.5 (The latest "brltty" package in Debian
> Unstable.)

I'm running debian unstable here, kernel 2.6.38 x86-64, BRLTTY 4.2, braille
display connected via a USB interface, and no stability issues.