David Greaves wrote:

Duane Griffin wrote:

quoted

On 07/06/07, David Greaves [off-list ref] wrote:

quoted

quoted

How hard does the machine freeze?  Can you use sysrq?  If so, please
dump sysrq-t.

I suspect there is a problem writing to the consoles...

I recompiled (rc4+patch) with sysrq support, suspended, resumed and
tried
sysrq-t but got no output.

I *can* change VTs and see the various login prompts, bitmap messages
and the
console messages. Caps/Num lock lights work.

Fearing incompetence I tried sysrq-s sysrq-u sysrq-b and got a reboot
so sysrq
is OK.

Try sysrq-9 before the sysrq-t. Probably the messages are not being
printed to console with your default output level.

Good idea :)
Didn't work :(

Can you setup serial console and/or netconsole (not sure whether this
would work tho)?

-- 
tejun