8.99.1: exiting unheld spin mutex

[Thomas Klausner <tk%giga.or.at@localhost>]

Hi!

I just upgraded from 7.99.75 to 8.99.1. The kernel didn't really come
up (I didn't watch the console at first). It paniced with a mutex
issue. When it came up again with a 8.99.1 kernel, it paniced while
writing the kernel core file to disk, with something like:

SPL NOT LOWERED ON SYSCALL EXIT

When it came up again, it paniced during startup, a bit later, with a
backtrace this time:

Mutex error: mutex_vector_exit,720: exiting unheld spin mutex

lock address : 0xfffffe882ef8d0b8
current cpu  :                  6
current lwp  : 0xfffffe881c147a40
owner field  : 0x0000000000000600 wait/spin: 0/1

panic: lock error: Mutex: ... (same thing)
cpu6: begin traceback...
vpanic9)
snprintf()
lockdebug_abort()
mutex_vector_exit()
crypto_getfeat()
cryptof_ioctl()
sys_ioctl()
syscall() at netbsd:syscall+0x1d8
-- syscall (number 54) ---
72c3f3d18baa:
cpu6: End traceback...

That's with a DIAGNOSTIC kernel.

Anyone else seen this?
 Thomas