Re: Boot panic -CURRENT #196643

Kostik Belousov wrote:
> On Sat, Aug 29, 2009 at 11:45:22PM +0200, Andreas Tobler wrote:
>> Kostik Belousov wrote:
>>
>>> Please, try this.
>>>
>>> diff --git a/sys/vm/vm_glue.c b/sys/vm/vm_glue.c
>>> index 234cde9..b0e8d3c 100644
>>> --- a/sys/vm/vm_glue.c
>>> +++ b/sys/vm/vm_glue.c
>>> _at__at_ -447,6 +447,8 _at__at_ vm_thread_dispose(struct thread *td)
>>> 	pages = td->td_kstack_pages;
>>> 	ksobj = td->td_kstack_obj;
>>> 	ks = td->td_kstack;
>>> +	td->td_kstack = 0;
>>> +	td->td_kstack_pages = 0;
>>> 	if (pages == KSTACK_PAGES && kstacks <= kstack_cache_size) {
>>> 		ks_ce = (struct kstack_cache_entry *)ks;
>>> 		ks_ce->ksobj = ksobj;
>>> _at__at_ -457,8 +459,6 _at__at_ vm_thread_dispose(struct thread *td)
>>> 		return;
>>> 	}
>>> 	vm_thread_stack_dispose(ksobj, ks, pages);
>>> -	td->td_kstack = 0;
>>> -	td->td_kstack_pages = 0;
>>> }
>>>
>>> static void
>> panic: Assertion td->td_lock == TDQ_LOCKPTR(tdq) failed ... sched_ule.c:1878
>> cpuid = 1
>> KDB: enter: panic
>> [thread pid 0 tid 100073 ]
>> Stopped at 	kdb_enter+0x3a: movl	$0,kdb_why
>>
>> As you see I managed to reboot my zfs root ;)
> 
> Fair enough.
> 
> I reverted the change for now, HEAD must be kept in the working state,
> esp. during the release.
> 
> My apologies for the breakage, r196648 should return the world
> to less broken state.


Np. Thank you for helping here!

FreeBSD 9.0-CURRENT (TC) #3 r196648M: Sun Aug 30 00:02:14 CEST 2009

Boots again and the rev in the line above is back.

Regards,
Andreas