Dave Jones wrote:
This patch from Randy has proven quite useful from time to time,
and has been in Fedora kernels for a while for that reason.
I fixed up some checkpatch warnings, and rediffed it a bunch
of times, Randy did the heavy lifting.
---
This one delays each printk() during boot by a variable time
(from kernel command line), while system_state == SYSTEM_BOOTING.
Caveat: it's not terribly SMP safe or SMP nice.
Any ideas for improvements (esp. in the SMP area) are appreciated.
---
From: Randy Dunlap <[email protected]>
Optionally add a boot delay after each kernel printk() call,
crudely measured in milliseconds, with a maximum delay of
10 seconds per printk.
Enable CONFIG_BOOT_DELAY=y and then add (e.g.):
"lpj=loops_per_jiffy boot_delay=100"
to the kernel command line.
Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Dave Jones <[email protected]>
---
init/calibrate.c | 2 +-
init/main.c | 25 +++++++++++++++++++++++++
kernel/printk.c | 33 +++++++++++++++++++++++++++++++++
lib/Kconfig.debug | 18 ++++++++++++++++++
4 files changed, 77 insertions(+), 1 deletion(-)
hey, that's pretty neat.
I've occasionally hand-hacked something similar, to achieve those effects.
Jeff
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