I'm facing this problem with the host kernel enabled by my tty-patch
(www.corewars.org/tty_patch.diff) to send tty-poll_outs...
When you output a large file to the terminal, it kills X.
This happens even when I'm not root. I tried breaking in at various
places - line_write_interrupt, sigio_handler, sigio_interrupt,
buffer_data... but it crashes before getting to any of them.
Visually, I can make out that it crashes imm. after hitting the point
where the output used to be truncated... Writing small sized files works
[Don't remember facing this with an earlier kernel, thought I'd point
it out-] If I boot uml with a gdb in the cmdline, everything
I type gets replicated. Special keys (like tab) are ignored. If I attach
gdb to the tracing thread later, it works fine...
bash# echo "hello_world_once"