Subject: Mutex error: mutex_vector_enter: locking against myself
To: None <firstname.lastname@example.org>
From: Anders Lindgren <email@example.com>
Date: 04/12/2007 00:29:56
I get this error (trivially reproducible) on port-evbarm/TS7200 kernels,
both 4.99.16 from a couple of days ago and 4.99.17 built ~24h ago.
The lock in question is no other than sched_mutex in kern_synch.o, which
seems pretty bad. :-)
Interestingly enough, the problem disappears if the kernel is compiled
with options LOCKDEBUG. It seems evbarm usage of this option is isolated
to arm32/pmap.c, so I guess I'll continue looking there...
Anyone else seen this on other platforms?
.oO( just fishing to see if this is exclusively evbarm, or MI )
Should I grab the panic message and ddb bt/ps output and file a PR with