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Date:      Sat, 11 Aug 2018 15:29:48 +0200
From:      Hans Petter Selasky <hps@selasky.org>
To:        Roman Bogorodskiy <novel@freebsd.org>
Cc:        Matthew Macy <mmacy@freebsd.org>, freebsd-current@freebsd.org
Subject:   Re: panic after ifioctl/if_clone_destroy
Message-ID:  <983b03f2-928d-852e-325e-1d03b394e591@selasky.org>
In-Reply-To: <20180811074407.GA6299@kloomba>
References:  <20180805153556.GA1957@kloomba> <CAPrugNqVUoP0V8%2ByKTbCZgMoDu22xvCfUuga2LbKabjyi_=__A@mail.gmail.com> <a03803e6-5f1e-1960-c6a1-c7477f0ac9d4@selasky.org> <8acc8f27-29f2-d4c1-7473-f7053b14e7ad@selasky.org> <911d520a-4eb5-02b4-a119-3663a7537e6a@selasky.org> <CAPrugNoivMkazen1R_5DkODaCYbL1dRoM9m1VEEmVDvMTW4Kmg@mail.gmail.com> <24743f03-8af2-4106-653d-3bfd13d910c9@selasky.org> <20180811074407.GA6299@kloomba>

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On 8/11/18 9:44 AM, Roman Bogorodskiy wrote:
>    Hans Petter Selasky wrote:
> 
>> On 08/06/18 21:43, Matthew Macy wrote:
>>> The struct thread is typesafe. The problem is that the link is no longer
>>> typesafe now that it’s not part of the thread. Thanks for pointing this
>>> out. I’ll commit a fix later today.
>>>
>>
>> Is there a patch yet?
>>
>> --HPS
>>
> 
> This was committed in:
> 
> https://svnweb.freebsd.org/changeset/base/337525
> 
> However, I've just updated to r337595, and it still panics. Not sure if
> that's related to the original issue though:
> 
> (kgdb) #0  doadump (textdump=0) at pcpu.h:230
> #1  0xffffffff8043ddfb in db_dump (dummy=<value optimized out>,
>      dummy2=<value optimized out>, dummy3=<value optimized out>,
>      dummy4=<value optimized out>) at /usr/src/sys/ddb/db_command.c:574
> #2  0xffffffff8043dbc9 in db_command (cmd_table=<value optimized out>)
>      at /usr/src/sys/ddb/db_command.c:481
> #3  0xffffffff8043d944 in db_command_loop ()
>      at /usr/src/sys/ddb/db_command.c:534
> #4  0xffffffff80440b6f in db_trap (type=<value optimized out>,
>      code=<value optimized out>) at /usr/src/sys/ddb/db_main.c:252
> #5  0xffffffff80bdef83 in kdb_trap (type=9, code=0, tf=<value optimized out>)
>      at /usr/src/sys/kern/subr_kdb.c:693
> #6  0xffffffff8107aee1 in trap_fatal (frame=0xfffffe00760dc8a0, eva=0)
>      at /usr/src/sys/amd64/amd64/trap.c:906
> #7  0xffffffff8107a3bd in trap (frame=0xfffffe00760dc8a0) at counter.h:87
> #8  0xffffffff81054d05 in calltrap ()
>      at /usr/src/sys/amd64/amd64/exception.S:232
> #9  0xffffffff80ded513 in inp_gcmoptions (ctx=0xfffff80003079f20)
>      at epoch_private.h:188
> #10 0xffffffff80bd9cba in epoch_call_task (arg=<value optimized out>)
>      at /usr/src/sys/kern/subr_epoch.c:507
> #11 0xffffffff80bdd0a9 in gtaskqueue_run_locked (queue=0xfffff800035be900)
>      at /usr/src/sys/kern/subr_gtaskqueue.c:332
> #12 0xffffffff80bdce28 in gtaskqueue_thread_loop (arg=<value optimized out>)
>      at /usr/src/sys/kern/subr_gtaskqueue.c:507
> #13 0xffffffff80b530c4 in fork_exit (
>      callout=0xffffffff80bdcda0 <gtaskqueue_thread_loop>,
>      arg=0xfffffe00061a4038, frame=0xfffffe00760dcac0)
>      at /usr/src/sys/kern/kern_fork.c:1057
> #14 0xffffffff81055cde in fork_trampoline ()
>      at /usr/src/sys/amd64/amd64/exception.S:990
> #15 0x0000000000000000 in ?? ()
> Current language:  auto; currently minimal
> (kgdb)
> 
> Full core.txt is here: https://people.freebsd.org/~novel/misc/core.20180811.txt
> 
> Roman Bogorodskiy
> 

What is the full panic message? Are you loading // unloading any network 
modules?

--HPS



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