On Wed, 2005-08-03 at 11:15 -0400, Steven Rostedt wrote: > I tested this patch by switching the kjournald to FIFO prio 30 and doing > a make of the kernel and "find / -name vmlinux", but this took 40 > minutes to cause the deadlock. Attached is a dumb module that creates a > thread and spins. If you want to test my softlockup detect, this will > trigger it. The thread that is created is not RT so you can still do > work. My detector doesn't care if something spins in the kernel as an RT > task or not, it will flag it regardless.
Here's an updated version of the tarball. I've included another module called nodeadlock that does a msleep(1) instead of a schedule. This should _not_ be detected as a lockup. -- Steve
deadlock_module.tar
Description: Unix tar archive
