Re: 2.6.32-rc4 ipw2200: oops on missing firmware

Ferenc Wagner
2009-10-13T20:22:47Z

Frans Pop <elendil@planet.nl> writes:

> Adding relevant CCs.

Thanks. Meanwhile I checked that the ipw2200 module can indeed be
removed and reinserted into the running system without problems,
here's the relevant part of dmesg:

[ 5837.082811] ipw2200: Firmware error detected. Restarting.
[ 5840.507981] ipw2200: Firmware error detected. Restarting.
[ 5886.248174] ipw2200 0000:02:02.0: PCI INT A disabled
[ 5919.283775] ipw2200: Intel(R) PRO/Wireless 2200/2915 Network Driver, 1.2.2kmprq
[ 5919.283782] ipw2200: Copyright(c) 2003-2006 Intel Corporation
[ 5919.283879] ipw2200 0000:02:02.0: PCI INT A -> Link[LNKF] -> GSI 11 (level, low) -> IRQ 11
[ 5919.285697] ipw2200: Detected Intel PRO/Wireless 2200BG Network Connection
[ 5919.285771] ipw2200 0000:02:02.0: firmware: requesting ipw2200-bss.fw
[ 5919.466323] ipw2200: Detected geography ZZR (14 802.11bg channels, 0 802.11a channels)
[ 5919.477923] udev: renamed network interface eth0 to wlan
[ 5982.543067] ipw2200: Firmware error detected. Restarting.
[ 5985.850947] ipw2200: Firmware error detected. Restarting.
[ 5989.170633] ipw2200: Firmware error detected. Restarting.
[ 5992.479084] ipw2200: Firmware error detected. Restarting.
[ 5995.786495] ipw2200: Firmware error detected. Restarting.
[ 5999.099022] ipw2200: Firmware error detected. Restarting.
[ 6003.193188] QoS Error need to parse QOS_PARAMETER IE
[ 6029.106407] ipw2200: Firmware error detected. Restarting.
[ 6032.415272] ipw2200: Firmware error detected. Restarting.

Yes, I continuously get firmware errors, and occasionally the QoS
error. I'm using firmware version 3.1, but these are probably
irrelevant for this bug report.

> Original message follows.
> ==============
> Hi,
>
> See the screenshot at http://apt.niif.hu/ipw_oops.png. During bootup,
> initramfs-tools tried to load the ipw2200 module, but nobody fed it
> the necessary firmware, so request_firmware timed out and the module
> unload cleanup oopsed in device_pm_remove:
>
> void device_pm_remove(struct device *dev)
> {
> pr_debug("PM: Removing info for %s:%s\n",
> dev->bus ? dev->bus->name : "No Bus",
> kobject_name(&dev->kobj));
> mutex_lock(&dpm_list_mtx);
> list_del_init(&dev->power.entry);
> mutex_unlock(&dpm_list_mtx);
> pm_runtime_remove(dev);
> }
>
> 00000a0a <device_pm_remove>:
> a0a: 55 push %ebp
> a0b: 89 e5 mov %esp,%ebp
> a0d: 53 push %ebx
> a0e: 89 c3 mov %eax,%ebx
> a10: b8 08 00 00 00 mov $0x8,%eax
> a15: e8 fc ff ff ff call a16 <device_pm_remove+0xc>
> a1a: 8d 4b 5c lea 0x5c(%ebx),%ecx
> a1d: 8b 53 5c mov 0x5c(%ebx),%edx
> a20: 8b 43 60 mov 0x60(%ebx),%eax
> a23: 89 42 04 mov %eax,0x4(%edx)
> a26: 89 10 mov %edx,(%eax)
> a28: 89 4b 5c mov %ecx,0x5c(%ebx)
> a2b: 89 4b 60 mov %ecx,0x60(%ebx)
> a2e: b8 08 00 00 00 mov $0x8,%eax
> a33: e8 fc ff ff ff call a34 <device_pm_remove+0x2a>
> a38: 89 d8 mov %ebx,%eax
> a3a: e8 fc ff ff ff call a3b <device_pm_remove+0x31>
> a3f: 5b pop %ebx
> a40: 5d pop %ebp
> a41: c3 ret
>
> The offending IP translates to line a23, so the problem is edx being 0
> at that point. I'm not sure which struct device field has offset
> 0x5c, maybe power, but I'm lost at this point anyway.
>
> I don't know whether it's a new bug or not, never did such insane
> things previously. rmmod ipw2200 definitely worked under 2.6.31, and
> it's possible that it works under 2.6.32-rc4 too, I forgot to check
> that (but will do so tonight).
>
> --
> Regards,
> Feri.