kernel panic is coming in Repeater mode while upgrading hostapd 0.4.8 to 0.6.9

gokulnatha at yahoo.co.in gokulnatha at yahoo.co.in
Fri Jun 5 07:55:55 EDT 2009


--- On Sun, 31/5/09, Pavel Roskin <proski at gnu.org> wrote:

> From: Pavel Roskin <proski at gnu.org>
> Subject: Re: kernel panic is coming in Repeater mode while upgrading hostapd 0.4.8 to 0.6.9
> To: "gokulnath A" <gokulnatha at yahoo.co.in>
> Cc: hostap at lists.shmoo.com
> Date: Sunday, 31 May, 2009, 3:25 AM
> On Sat, 2009-05-30 at 13:09 +0530,
> gokulnath A wrote:
> > hi all...
> >   
> >    I have upgraded the hostapd version 0.4.8
> to 0.6.9 in my atheros
> > based chipset. I am using Madwifi Wirless driver
> .  i have set
> > Repeater Mode with first Vap as managed mode and
> Second Vap as Master
> > mode . While setting WPA, WPA2 , WPA-PSK, WPA2-PSK,
> WPA-auto,
> > WPA2-auto anyone of the security settings in VAP2 ,
> kernel panic is
> > coming after reboot . Please help me to solve this
> issue.
> > 
> > But setting in VAP1 have no problem. Only VAP2 having
> the kernel panic
> > problem. 
> 



> Userspace software such as hostapd or wpa_supplicant cannot
> be held
> responsible for kernel panics.
> 
> Kernel panic is a kernel issue and should be reported as
> such, that is,
> to the list about the appropriate driver (MadWifi in this
> case),
> complete with the versions of the software involved (kernel
> and MadWifi)
> and the backtrace from the kernel log.


hi .

  The kernel panic is coming when i upgrade the hostapd to 0.6.9. In the version i previously used is 0.4.8.In that version there is no  kernel panic and the system works fine. if it is not a hostapd issue then the panic should come in 0.4.8 version . But in my case its not coming . 

And In the System Kernel(linux-2.4.25) , Wireless Driver (madwifi-ng),  I didn't change anything in that . 

As i said when Vap2 entered promiscuous mode its try to get the security settings. there only kernel panic starts.
here is kernel log :
<6>device ath1 entered promiscuous mode
<6>device ath2 entered promiscuous mode
<4>unexpected operating mode 1Break instruction in kernel code in traps.c::do_bp, line 591:
<4>$0 : 00000000 1000ed00 0000001b 00000001 80158898 00000000 1000ed00 00000031
<4>$8 : 00000000 00000000 00000001 80164aeb fffffffb ffffffff 0000000a 00000000
<4>$16: 81c88160 81f04000 81d28160 81d28ae0 c04aa8d0 00000001 00000000 00000001
<4>$24: 81fa9cb8 80164ecf                   81fa8000 81fa9d98 00000000 c049b344
<4>Hi : 00000000
<4>Lo : 0000000a
<4>epc   : c049b344    Tainted: P
<4>Status: 1000ed03
<4>Cause : 10800024
<4>PrId  : 00018009
<4>Process hostapd (pid: 470, stackpage=81fa8000)
<4>Stack:    00000059 00000001 81fa9ea0 81fa9ea0 81c82b20 800b8c60 81f04000
<4> 00000001 81d28ae0 81fa9ea0 c04aa8d0 c04aa924 8104d200 80029a98 000001f0
<4> 800b87ec 81f04000 c049a534 8013c420 81fc1d80 81f9015c 81fc1d80 81fa9ea4
<4> 81d28160 81fa9ea0 c04aa9b8 00000000 c04aab30 00000000 10000ba8 00000000
<4> 00000001 00000000 00000000 8013c420 00457450 81c58000 00008be6 81fa9e90
<4> 800c7220 ...
<4>Call Trace:   [<800b8c60>] [<c04aa8d0>] [<c04aa924>] [<80029a98>] [<800b87ec>]
<4> [<c049a534>] [<c04aa9b8>] [<c04aab30>] [<800c7220>] [<80024940>] [<80024908>]
<4> [<800bef30>] [<800b5cb0>] [<800b5c64>] [<80052954>] [<800fc5e4>] [<800b54b8>]
<4> [<8004ccb4>] [<800b5ad0>] [<80009664>]
<4>
<4>Code: 24422f0c  0040f809  00000000 <0200000d> 08126c3a  9622002c  9487002c  8c83001c  24850179 
<0>Kernel panic: Aiee, killing interrupt handler!
<0>In interrupt handler - not syncing




Regards , 

Goks








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