Date: Sat, 1 May 2010 17:32:37 +0100 From: Rui Paulo <rpaulo@freebsd.org> To: "M. Warner Losh" <imp@bsdimp.com> Cc: fk@bsdler.de, freebsd-mips@freebsd.org Subject: Re: Trap when setting up ath0 Message-ID: <D48087C6-E236-47F9-9B53-7975FDA47B5E@freebsd.org> In-Reply-To: <20100501.101914.634347869592892486.imp@bsdimp.com> References: <1272703119.48777.19.camel@brain.lan.terror.local> <0CB1D579-01A7-4F60-BC57-760016FB7E47@freebsd.org> <1272729476.48777.25.camel@brain.lan.terror.local> <20100501.101914.634347869592892486.imp@bsdimp.com>
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On 1 May 2010, at 17:19, M. Warner Losh wrote:
> In message: <1272729476.48777.25.camel@brain.lan.terror.local>
> Florian Kruegl <fk@bsdler.de> writes:
> : Hi
> :=20
> : On Sat, 2010-05-01 at 11:09 +0100, Rui Paulo wrote:
> : > On 1 May 2010, at 09:38, Florian Kruegl wrote:
> : >=20
> : > > Hi,
> : > >=20
> : > > I get a trap when setting up wlan interface on RS pro.=20
> : >=20
> : > Maybe this is because some structure is misaligned. Can you enable =
AH_DEBUG and ATH_DEBUG and edit {if_ath.c,ah_osdep.c} so that =
ath_debug=3D0xffffffff and ath_hal_debug=3D0xffffffff ?
> : >=20
> :=20
> : --------------< bootup >--------------
> : ath0: <Atheros 9280> irq 1 at device 18.0 on pci0
> : ath0: [ITHREAD]
> : ath_getchannels: eeprom rd 32924 cc 156 (mapped rd 32924 cc 156)
> : location I ecm
> : ath_descdma_setup: rx DMA: 40 buffers 1 desc/buf
> : ath_descdma_setup: rx DMA map: 0xa0923000 (3840) -> 0x923000 (3840)
> : ath_descdma_setup: tx DMA: 200 buffers 10 desc/buf
> : ath_descdma_setup: tx DMA map: 0xa0980000 (192000) -> 0x980000 =
(192000)
> : ath_descdma_setup: beacon DMA: 4 buffers 1 desc/buf
> : ath_descdma_setup: beacon DMA map: 0xa0970000 (384) -> 0x970000 =
(384)
> : ath0: AR9280 mac 128.2 RF5133 phy 13.0
> : --------------< bootup >--------------
> :=20
> :=20
> : --------------< setup >--------------
> : xerxes# ifconfig ath0 up
> : ath_init: if_flags 0x8803
> : ath_stop_locked: invalid 0 if_flags 0x8803
> : Trap cause =3D 7 (bus error (load or store) - kernel mode)
> : [ thread pid 1809 tid 100067 ]
> : Stopped at platform_start+0x1b10: srl v0,a1,8
> : --------------< setup >--------------
>=20
> Looks a bit like the atheros bug. Try applying
> http://people.freebsd.org/~imp/ar71xx_ath_war.diff and including the
> AH_RXCFG_SDMAMW_4BYTES option in your kernel?
The AR9280 is based on the AR5416 MAC and it's an 11n part, so if this =
only shows up on AR5212 MACs, this patch may not help.
Regards,
--
Rui Paulo
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