[acpi] panic: knlist locked, but should not be

[pluknet]

Hi,

Reproducible panic after entering into acpiconf -s 3
on -current SMP i386.

[manually transcribed]
panic: knlist locked, but should not be
cpuid = 1
KDB: enter: panic
[thread pid 1107 tid 100062 ]
Stopped at kdb_enter
db> bt
Tracing pid 1107...
kdb_enter
panic
knote
acpi_ReqSleepState
acpiioctl
devfs_ioctl_f
kern_ioctl
ioctl
syscall
...
db> show locks
exclusive sleep mutex ACPI global lock (ACPI global lock r = 0 (0xc086b040) loc
ked @ /usr/src/sys/dev/acpica/acpi.c:2316

I'm still in ddb and can give further info if needed.

-- 
wbr,
pluknet