On Tue, 5 Jun 2007, Kostik Belousov wrote:
On Tue, Jun 05, 2007 at 06:00:05PM +0300, Kostik Belousov wrote:
On Wed, Jun 06, 2007 at 12:48:11AM +1000, Bruce Evans wrote:
On Tue, 5 Jun 2007, Konstantin Belousov wrote:
kib 2007-06-05 14:20:13 UTC
FreeBSD src repository
Modified files:
sys/kern kern_mutex.c
Log:
Restore non-SMP build.
Does it run? _thread_lock_flags() is an almost identical copy of
_mtx_lock_spin_flags(), but _mtx_lock_spin_flags() is only for SMP.
No, it panics immediately in vm_pagezero() with
panic: sleepq chain not locked @kern_mutex.c:678.
Clarification: panic occurs only if PREEMPTION is _not_ specified in kernel
config. For PREEMPTION non-SMP kernel, I see no problems is 5-minutes run
still.
I get a "spin lock held too long" panic during (an interrupt in?) acpi
initialization on booting non-PREEMPTION SCHED_4BSD SMP. Haven't tried
other cases.
Bruce
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