Date: Sat, 29 Aug 2009 23:13:43 +0200 From: Andreas Tobler <andreast-list@fgznet.ch> To: Kostik Belousov <kostikbel@gmail.com> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: Boot panic -CURRENT #196643 Message-ID: <4A999A07.9000204@fgznet.ch> In-Reply-To: <20090829205723.GW1881@deviant.kiev.zoral.com.ua> References: <4A997442.1060200@fgznet.ch> <20090829183906.GS1881@deviant.kiev.zoral.com.ua> <4A9988ED.2040403@fgznet.ch> <20090829201614.GU1881@deviant.kiev.zoral.com.ua> <4A999344.5000703@fgznet.ch> <20090829205723.GW1881@deviant.kiev.zoral.com.ua>
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Kostik Belousov wrote:
> On Sat, Aug 29, 2009 at 10:44:52PM +0200, Andreas Tobler wrote:
>> Kostik Belousov wrote:
>>> On Sat, Aug 29, 2009 at 10:00:45PM +0200, Andreas Tobler wrote:
>>>> Kostik Belousov wrote:
>>>>> On Sat, Aug 29, 2009 at 08:32:34PM +0200, Andreas Tobler wrote:
>>>>>> Hello,
>>>>>>
>>>>>> I synced the sources today to #196643.
>>>>> Try 196644.
>>>> [tc:head/src/sys] andreast% svn info
>>>> Path: .
>>>> URL: svn://svn.freebsd.org/base/head/sys
>>>> Repository Root: svn://svn.freebsd.org/base
>>>> Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f
>>>> Revision: 196644
>>>> Node Kind: directory
>>>> Schedule: normal
>>>> Last Changed Author: kib
>>>> Last Changed Rev: 196644
>>>> Last Changed Date: 2009-08-29 20:01:02 +0200 (Sat, 29 Aug 2009)
>>>>
>>>> Still the same, as below.
>>>>
>>>> But with WITNESS etc. on:
>>>>
>>>> I get this panic:
>>>> ---
>>>> Trying to mount root from zfs:zroot
>>>> panic: thread_alloc got thread with kstack
>>>> cpuid = 0
>>>> KDB: enter: panic
>>>> [thread pid 1 tid 100002 ]
>>>> Stopped at kdb_enter+0x3a: movl $0,kdb_why
>>> Can you show me the backtrace (from ddb) ?
>> I would like, yes, but as I said, the keyboard is not functional at this
>> moment, it would be activated after this mount.
>>
>> Do I have other possibilties to get in connection with this machine?
I tried "26.6.2 Serial Console Configuration, Terse Version"
And now I can't boot at all.
I have a second partition with 8.0BETA3 on this machine, this one I can
boot. But how can I mount a zfs root ?
tc# gpart show ad4s4
=> 0 251371512 ad4s4 BSD (120G)
0 242982904 1 freebsd-zfs (116G)
242982904 8380811 2 freebsd-swap (4.0G)
251363715 7797 - free - (3.8M)
I'd like to mount ad4s4a to /mnt with the following command:
tc# mount -t zfs /dev/ad4s4a /mnt
mount: /dev/ad4s4a : Invalid argument
Any idea what I'm doing wrong? Or is it not possible?
>>
>>
>>
>>>>>> And built a kernel with WITNESS etc. off.
>>>>>>
>>>>>> My boot partition sits on zfs.
>>>>>>
>>>>>> I get the below panic. Unfortunately I can't bt since the usb keyboard
>>>>>> ist not functional at this moment.
>>>>>>
>>>>>> ---
>>>>>> Trying to mount root from zfs:zroot
>>>>>> spin lock 0x80dccc00 (sched lock 1) held by 0x8595baf0 (tid 100003) too
>>>>>> long
>>>>>> panic: spin lock held too long
>>>>>> cpuid = 0
>>>>>> KDB: enter: panic
>>>>>> [thread pid 1 tid 100002 ]
>>>>>> Stopped at kdb_enter+0x3a: movl $0,kdb_why
>>>>>> ---
>>>>>>
>>>>>> Unfortunately I can't say exactly which version the previous, working,
>>>>>> kernel has. The svn nbr has gone. (I have this subversion:
>>>>>> subversion-freebsd-1.6.5)
>>>> This question is still open.
>>> r196639 will work for you.
>> :) I'll need a quick eye on it then.
>
> Please, try this.
I'll do so, asap I can boot again.
Thanks,
Andreas
>
> 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
> @@ -447,6 +447,8 @@ 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;
> @@ -457,8 +459,6 @@ 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
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