Date: Mon, 27 Sep 2010 11:20:36 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: Anton Shterenlikht <mexas@bristol.ac.uk> Subject: Re: amd64 panic: lock (sleep mutex) ral0 not locked @ /usr/src/sys/dev/ral/rt2560.c:2012 Message-ID: <201009271120.36337.jhb@freebsd.org> In-Reply-To: <20100925195334.GA58609@mech-cluster241.men.bris.ac.uk> References: <20100925195334.GA58609@mech-cluster241.men.bris.ac.uk>
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On Saturday, September 25, 2010 3:53:34 pm Anton Shterenlikht wrote:
> On amd64 r213168 I've a ral(4) CardBus
> wireless device of obscure origin.
> It is identified as
>
> db> bt
> Tracing pid 0 tid 100068 td 0xffffff0001b59440
> kbd_enter() at kbd_enter+0x3d
> panic() at panic+0x17b
> witness_unlock() at witness_unlock+0x297
> _mtx_unlock_flags() at _mtx_unlock_flags+0x7e
> rt2560_ioctl() at rt2560_ioctl+0xbf
> taskqueue_run() at taskqueue_run+0x63
> taskqueue_thread_loop() at taskqueue_thread_loop+0x54
> fork_exit() at fork_exit+0x12a
> fork_trampoline() at fork_trampoline+0xe
> --- trap 0, rip 0, rsp=0xffffff80b2d41cf0, rbp = 0 ---
This will likely fix your panic, but I think the card is likely to still not
work:
Index: rt2560.c
===================================================================
--- rt2560.c (revision 212900)
+++ rt2560.c (working copy)
@@ -2667,8 +2667,7 @@
RAL_WRITE(sc, RT2560_CSR1, RT2560_HOST_READY);
if (rt2560_bbp_init(sc) != 0) {
- rt2560_stop(sc);
- RAL_UNLOCK(sc);
+ rt2560_stop_locked(sc);
return;
}
--
John Baldwin
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