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Date:      Wed, 14 Aug 2013 10:13:49 -0700
From:      Adrian Chadd <adrian@freebsd.org>
To:        Julio Merino <julio@meroh.net>
Cc:        "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org>
Subject:   Re: kern/181100: [bwi] Turning up bwi0 crashes / deadlocks the kernel
Message-ID:  <CAJ-Vmo=-P0g=Hx4Kksh8T-GiaVdphdC4=NGmWXW_EmWVRLou-g@mail.gmail.com>
In-Reply-To: <CADyfeQVAq5yTssxMF_RFxrqP%2B_D7Vds0k5jQGm5e5FzTJCPA=w@mail.gmail.com>
References:  <201308111650.r7BGo1Qt048071@freefall.freebsd.org> <CAJ-Vmo=u7VZjs0Nd0dGkaHNboNwUU=5N%2B25CT=0RfcT7kG0oVg@mail.gmail.com> <CADyfeQWv6t8TuKZqTvtVUiQMNDcAsDZjsDzG_ooRxLgTSUuvcQ@mail.gmail.com> <CAJ-Vmonc0NiZXnvCLSsceFgwQ-f3qiRBG2yxgk5%2BL8BhSQD5bQ@mail.gmail.com> <CADyfeQXsa1NoCthcQqobvwCuuBzP%2BXVp87dBU=QN1FCEevz0kg@mail.gmail.com> <CAJ-Vmo=Zp4s_vkDSUNkO3ekC2A9NdGqDoA2MxCgvbXFUhQDkdw@mail.gmail.com> <52099CF4.7050101@meroh.net> <CAJ-VmonqB0TfY1wxC4zcr4-03sW4J_uTfgnAeAeTJmcRvnmvEA@mail.gmail.com> <CAJ-Vmon2__hA41n2Cri26Sv%2BFxUC7zh5iuM28TM4T9JMpaQN-Q@mail.gmail.com> <CADyfeQVAq5yTssxMF_RFxrqP%2B_D7Vds0k5jQGm5e5FzTJCPA=w@mail.gmail.com>

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Hi,

Can you please work with Justin to figure out the IP of that panic inside
_bwi_txeof(), and then map it back to a line number?

I've no idea where the panic is actually triggering.

Thanks,


-adrian


On 13 August 2013 19:45, Julio Merino <julio@meroh.net> wrote:

> On Tue, Aug 13, 2013 at 5:58 AM, Adrian Chadd <adrian@freebsd.org> wrote:
> > Hi!
> >
> > Please update to the latest -HEAD and try again.
>
> No luck. It gets a bit further now (ifconfig wlan0 up returns to the
> shell) but then panics:
>
> panic: ring_idx 0
> cpuid = 1
> KDB: stack backtrace:
> kdb_backtrace
> vpanic
> kassert_panic
> _bwi_txeof
> bwi_txeof_status32
> bwi_intr
> intr_event_execute_handlers
> ithread_loop
> fork_exit
> fork_trampoline
>
> (blindly typed while reading from kdb)
>
> --
> Julio Merino / @jmmv
>



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