RE: [ipw3945-devel] iwl3945 dies on module reload

Maxim Levitsky
2009-11-23T23:54:27Z

On Mon, 2009-11-23 at 15:24 -0800, Cahill, Ben M wrote:
>
> >-----Original Message-----
> >From: Maxim Levitsky [mailto:maximlevitsky@gmail.com]
> >Sent: Monday, November 23, 2009 12:16 PM
> >To: Johannes Berg
> >Cc: linux-wireless; iwlwifi maling list
> >Subject: [ipw3945-devel] iwl3945 dies on module reload
> >
> >When reloading the iwl3945 driver I often get this:
> >
> >
> >[ 830.333386] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG
> >Network Connection driver for Linux, 1.2.26kds
> >[ 830.333407] iwl3945: Copyright(c) 2003-2009 Intel Corporation
> >[ 830.333536] iwl3945 0000:06:00.0: PCI INT A -> GSI 19
> >(level, low) -> IRQ 19
> >[ 830.374979] iwl3945 0000:06:00.0: Tunable channels: 13
> >802.11bg, 0 802.11a channels
> >[ 830.374995] iwl3945 0000:06:00.0: Detected Intel Wireless
> >WiFi Link 3945BG
> >[ 830.375163] iwl3945 0000:06:00.0: irq 32 for MSI/MSI-X
> >[ 830.376859] phy0: Selected rate control algorithm 'iwl-3945-rs'
> >[ 830.427214] iwl3945 0000:06:00.0: firmware: requesting
> >iwlwifi-3945-2.ucode
> >[ 830.526945] iwl3945 0000:06:00.0: loaded firmware version 15.32.2.9
> >[ 830.544236] CE: hpet increasing min_delta_ns to 15000 nsec
> >[ 830.575694] iwl3945 0000:06:00.0: BSM uCode verification
> >failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
> >[ 830.578862] iwl3945 0000:06:00.0: Hardware error detected.
> >Restarting.
> >[ 832.570133] iwl3945 0000:06:00.0: Wait for START_ALIVE
> >timeout after 2000ms.
> >[ 832.622676] iwl3945 0000:06:00.0: BSM uCode verification
> >failed at addr 0x00003800+0 (of 900), is 0xa5a5a5a2, s/b 0xf802020
> >[ 832.625839] iwl3945 0000:06:00.0: Hardware error detected.
> >Restarting.
> >[ 834.620132] iwl3945 0000:06:00.0: Wait for START_ALIVE
> >timeout after 2000ms.
>
> The 0xa5a5a5a2 signature indicates that the device is powered up and the PCI Express link is working, but somehow the device internals have not been powered up / initialized.
>
> Are you using a very recent version of the driver? I've done some work in this area in the past couple of months.

I use -git tip of wireless-testing

Best regards,
Maxim Levitsky