Hallo,
After installing the Arch 0.8 with kernel 2.6.20 and wlan-ng26 the activation of
wlan couses an Bug and Oops:

Mar 17 19:04:15 pluto Prism2 card SN: 000000000000
Mar 17 19:04:20 pluto linkstatus=CONNECTED
Mar 17 19:04:20 pluto BUG: unable to handle kernel paging request at virtual address 3d736b87
Mar 17 19:04:20 pluto printing eip:
Mar 17 19:04:20 pluto f8ff5c87
Mar 17 19:04:20 pluto *pde = 00000000
Mar 17 19:04:20 pluto Oops: 0000 [#1]


The internet connection is established, I can see it by an ping script, but
the keyboard don't work more and the whole system can be only be swicht off by
disconnecting the power.

I tried with kernels 2.6.20.1 til 2.6.20.3 and the newest wlan-ng26 package,
the problem remains the same.
On my older Version Arch 0.7.1 and 0.7.2 with kernels 2.6.14 or 2.6.19 there
is no problem with the Wlan.

My hardware is: AMD Athlon XP 2000+
and D-Link DWL-122 USB Wlan device. (Prism2_usb)


This is a part of messages in log:

Mar 17 18:58:39 pluto usb 2-1: new full speed USB device using ohci_hcd and address 2
Mar 17 18:58:39 pluto usb 2-1: configuration #1 chosen from 1 choice
Mar 17 18:58:39 pluto prism2usb_init: prism2_usb.o: 0.2.7 Loaded
Mar 17 18:58:39 pluto prism2usb_init: dev_info is: prism2_usb
Mar 17 18:58:39 pluto usbcore: registered new interface driver prism2_usb
Mar 17 18:58:53 pluto hfa384x_usbctlx_complete_sync: CTLX[5] error: state(Request failed)
Mar 17 18:58:53 pluto hfa384x_drvr_readpda: Read from index 0 failed, continuing
Mar 17 18:58:54 pluto PDA Read from 0x003f0000 in EXTDS space.
Mar 17 18:58:54 pluto PDA Read from 0x007f0000 in EXTDS space.
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7e2ffe
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7e3ffe
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7e4ffe
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7e5ffe
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7e6ffe
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7e7ffe
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7e8ffe
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7e9ffe
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7eaffe
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7ebffe
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7ecffe
Mar 17 18:58:54 pluto Writing 4096 bytes to ram @0x7edffe
Mar 17 18:58:54 pluto Writing 3010 bytes to ram @0x7eeffe
Mar 17 18:58:54 pluto Writing 416 bytes to ram @0x7efc20
Mar 17 18:58:54 pluto Writing 16 bytes to ram @0x7efdd0
Mar 17 18:58:54 pluto Writing 4044 bytes to ram @0x7f0800
Mar 17 18:58:54 pluto Writing 3288 bytes to ram @0x7fe000
Mar 17 18:58:54 pluto ident: nic h/w: id=0x8026 1.0.0
Mar 17 18:58:54 pluto ident: pri f/w: id=0x15 1.1.3
Mar 17 18:58:54 pluto ident: sta f/w: id=0x1f 1.8.3
Mar 17 18:58:54 pluto MFI:SUP:role=0x00:id=0x01:var=0x01:b/t=1/1
Mar 17 18:58:54 pluto CFI:SUP:role=0x00:id=0x02:var=0x02:b/t=1/1
Mar 17 18:58:54 pluto PRI:SUP:role=0x00:id=0x03:var=0x01:b/t=1/4
Mar 17 18:58:54 pluto STA:SUP:role=0x00:id=0x04:var=0x01:b/t=1/15
Mar 17 18:58:54 pluto PRI-CFI:ACT:role=0x01:id=0x02:var=0x02:b/t=1/1
Mar 17 18:58:54 pluto STA-CFI:ACT:role=0x01:id=0x02:var=0x02:b/t=1/1
Mar 17 18:58:54 pluto STA-MFI:ACT:role=0x01:id=0x01:var=0x01:b/t=1/1
Mar 17 18:58:54 pluto Prism2 card SN: 000000000000
Mar 17 18:58:59 pluto linkstatus=CONNECTED
Mar 17 18:58:59 pluto BUG: unable to handle kernel NULL pointer dereference at virtual address 000000d0
Mar 17 18:58:59 pluto printing eip:
Mar 17 18:58:59 pluto f8feec87
Mar 17 18:58:59 pluto *pde = 00000000
Mar 17 18:58:59 pluto Oops: 0000 [#1]
Mar 17 18:58:59 pluto PREEMPT SMP
Mar 17 18:58:59 pluto Modules linked in: prism2_usb p80211 ppdev lp analog snd_seq_oss snd_seq_midi_event snd_seq snd_seq_device snd_pcm_oss snd_mixer_oss rtc ns558 parport_pc parport psmouse
serio_raw gameport ppp_generic slhc shpchp sis900 mii snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm snd_timer snd soundcore ohci_hcd sis_agp agpgart sg i2c_sis96x i2c_core pci_hotplug snd_page_alloc
ehci_hcd tsdev evdev pcspkr usbcore reiserfs sr_mod cdrom sd_mod ata_generic pata_sis libata
Mar 17 18:58:59 pluto CPU: 0
Mar 17 18:58:59 pluto EIP: 0060:[<f8feec87>] Not tainted VLI
Mar 17 18:58:59 pluto EFLAGS: 00010286 (2.6.20-ARCH #1)
Mar 17 18:58:59 pluto EIP is at prism2sta_commsqual_defer+0x17/0xe0 [prism2_usb]
Mar 17 18:58:59 pluto eax: f6978b94 ebx: 000000ac ecx: dffff6c0 edx: 00000004
Mar 17 18:58:59 pluto esi: f6978b94 edi: f7dd9c00 ebp: 00000202 esp: dfe13e90
Mar 17 18:58:59 pluto ds: 007b es: 007b ss: 0068
Mar 17 18:58:59 pluto Process events/0 (pid: 5, ti=dfe12000 task=c18fd570 task.ti=dfe12000)
Mar 17 18:58:59 pluto Stack: dfe13f42 00000002 00000002 dfe13f42 f6978000 00000202 f8feec55 dfe13f42
Mar 17 18:58:59 pluto 00000002 00000000 00000000 dfe13f16 0000003c f7dd9c00 f8fef87d 00000002
Mar 17 18:58:59 pluto dfe13f80 c033dd16 00000002 f6978bc8 dfe13f68 00000000 c16d2c00 c03cc460
Mar 17 18:58:59 pluto Call Trace:
Mar 17 18:58:59 pluto [<f8feec55>] hfa384x_drvr_getconfig+0x35/0x50 [prism2_usb]
Mar 17 18:58:59 pluto [<f8fef87d>] prism2sta_processing_defer+0x46d/0x670 [prism2_usb]
Mar 17 18:58:59 pluto [<c033dd16>] schedule+0x356/0xbe0
Mar 17 18:58:59 pluto [<c01378d3>] run_workqueue+0x93/0x140
Mar 17 18:58:59 pluto [<f8fef410>] prism2sta_processing_defer+0x0/0x670 [prism2_usb]
Mar 17 18:58:59 pluto [<c0138447>] worker_thread+0x147/0x170
Mar 17 18:58:59 pluto [<c0121350>] default_wake_function+0x0/0x10
Mar 17 18:58:59 pluto [<c0138300>] worker_thread+0x0/0x170
Mar 17 18:58:59 pluto [<c013b2eb>] kthread+0xbb/0xf0
Mar 17 18:58:59 pluto [<c013b230>] kthread+0x0/0xf0
Mar 17 18:58:59 pluto [<c0103e6f>] kernel_thread_helper+0x7/0x18
Mar 17 18:58:59 pluto =======================
Mar 17 18:58:59 pluto Code: 18 83 c4 1c c3 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 90 83 ec 38 89 74 24 30 89 c6 89 5c 24 2c 89 7c 24 34 8b 98 80 0b 00 00 <8b> 7b 24 85 ff 75 72 8b 83 84 00 00 00 85
c0 74 68 83 f8 03 74
Mar 17 18:58:59 pluto EIP: [<f8feec87>] prism2sta_commsqual_defer+0x17/0xe0 [prism2_usb] SS:ESP 0068:dfe13e90



This is the output from /etc/wlan/wlan-udev.sh wlan0

message=lnxreq_ifstate
ifstate=fwload
resultcode=success
Reading S-record file /etc/wlan//prism2_ru.hex...
NIC ID: 0x8026 v1.0.0
MFI ID: 0x1 v1 1->1
CFI ID: 0x2 v2 1->1
PRI ID: 0x3 v1 1->4
Version: ID 0x1f 1.8.3
Compat: Role 0 Id 0x4 v3 1->15
Compat: Role 0x1 Id 0x1 v1 1->1
Compat: Role 0x1 Id 0x2 v2 1->1
Compat: Role 0x1 Id 0x3 v1 4->4
Seq: 0
Platform: ID 0x800a 1.0.0
Platform: ID 0x800f 1.0.0
Platform: ID 0x8010 1.0.0
Platform: ID 0x8011 1.0.0
Platform: ID 0x801e 1.0.0
Platform: ID 0x801f 1.0.0
Platform: ID 0x8020 1.0.0
Platform: ID 0x8025 1.0.0
Platform: ID 0x8026 1.0.0
Platform: ID 0x8027 1.0.0
prism2dl: warning: Failed to find PDR for plugrec 0x0405.
prism2dl: warning: Failed to find PDR for plugrec 0x0406.
prism2dl: warning: Failed to find PDR for plugrec 0x0302.
prism2dl: warning: Failed to find PDR for plugrec 0x0303.
prism2dl: warning: Failed to find PDR for plugrec 0x0412.
prism2dl: warning: Failed to find PDR for plugrec 0x0414.
prism2dl: finished.
wlan0 start OK