Re: if_ipw not working on T41 with 2005-05-20's CURRENT

Matti Saarinen <mjsaarin_at_cc.helsinki.fi> wrote:

> For some reason the ipw driver has stopped working on my laptop (IBM
> T41). It used to work when the laptop ran CURRENT from 2005-04-11.
> Now, when I upgraded at the beginnig of May the wireless connection
> just stops and loses connectivity. The system logs
> 
> ipw0: fatal error
> 
> and the interface goes down.
> 
> If I do "ifconfig ipw0 up" everything starts working then the fatal
> error occures again. If I bring the interface up a few times (normally
> four) the interface stays up but does not transmit traffic. If I do
> ifconfig down and up to the interface, it does not help. Actually, it
> makes things worse. After about half a minute the system eihter
> freezes or panics. Unfortunately, I wasn't able to get the system to
> panic and produce a trace when it run a debug kernel. Below is a trace
> from non-debug kernel. I hope it will give some information what is
> wrong.
> 
> The interface works if I use ndis wrapper and the Windows drivers.
> 
> ipw0: fatal error
> 
> Fatal trap 12: page fault while in kernel mode
> fault virtual address		= 0x48
> fault code			= supervisor read, page not present
> instruction pointer		= 0x20:0xc05868bb
> stack pointer			= 0x28:0xf4d67b44
> frame pointer			= 0x28:0xf4d67b74
> code segment			= base 0x0, limit 0xfffff, type 0x1b
> 				= DPL 0, pres 1, def32 1, gran 1
> processor eflags		= interrupt enabled, resume, IOPL = 0
> current process			= 639 (ifconfig)
> [thread pid 639 tid 100057
> Stopped at	in_ifinit+0x17b:		testb	$0x18,0x48(%eax)
> db> trace
> Tracing pid 639 tid 100057 td 0xc211eaf0
> in_ifinit(c233167c,0,x0624fa6,0,0) at in_ifinit+0x17b
> in_control(c233167c,8040691a,c221dd40,c2117c00,c211eaf0) at in_control+0xd8a
> ifioctl(c233167c,8040691a,c221dd40,c211eaf0) at ifioctl+0x177
> soo_ifioctl(c2153d38,8040691a,c221dd40,c2157700,c211eaf0) at soo_ioctl+0x290
> ioctl(c211eaf0) at ioctl+0xfb
> syscall(3b,3b,3b,80553a0,1) at syscall+0x1e3
> Xint0x80_syscall() at X_int0x80_syscall+0xif
> --- syscall (54, FreeBSD ELF32, ioctl), eip = 0x280c526b, esp = 0xbfbfe31c, ebp = 0xbfbfeb70 ----
> db>

Did you rebuild if_ipw.ko after you updated the system?
If if_ipw.ko and kernel are out of sync, you're asking for trouble. 

Fabian
-- 
http://www.fabiankeil.de/