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Any way to run 32 bit ndiswrapper on 64-bit Linux system?

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Instability after ndiswrapper unload with USB drivers

Hello!

I was too optimistic to write in a recent subversion commit that the  
USB problems in ndiswrapper have been fixed.  I managed to unload  
ndiswrapper several times in a row so I concluded that my fix  
(canceling an IRP before freeing it) was the right fix for the problem.

I still think my fix was correct.  Freeing an irp with a cancel  
routine is not a good idea.  But it wasn't relevant to the actual  
problem.  The actual problem happens if IoCancelIrp() is called  
directly from the Windows driver.  It doesn't happen every time.

As far as I can tell, there are three different problems, and it's not  
clear if they are connected.

1) The freed URB is accessed for writing after being freed.  I believe  
that's the real source of instability after ndiswrapper is unloaded.

2) IoCancelIrp() is called with an IRP that has stack location  
pointing the end of the memory allocated for the IRP.  That leads to  
reading dev_obj from random memory.  Fortunately, ndiswrapper's only  
implementation of cancel_routine doesn't use dev_obj at all.  I have a  
proof that IRP is set to that position in
IofCompleteRequest().  I think that function should be reviewed by  
somebody who knows Windows driver programming.  I have a simple fix  
that simply sends NULL instead of dev_obj in IoCancelIrp().  However,  
that fix doesn't fix the instability.

3) I get an occasional "invalid task" from  
NdisMSetInformationComplete(), which is racing against itself.   
However, it doesn't seem to be related to the instability after  
ndiswrapper unload.

As it stands now, the PCI support is pretty good, but USB support is  
quite unstable.  Maybe it doesn't matter for the end users that much,  
as they are unlikely to unload ndiswrapper.  But since we don't have a  
fix, it's hard to say definitely that the instability would only  
happen on the module unload.

I'll appreciate any help with those issues, as they delay the next release.

--

-- 
Regards,
Pavel Roskin

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BUG: unable to handle kernel paging request

Greetings.  I hope I'm doing this correctly.

I have a HP G62-355DX laptop running Linux 2.6.36 from Slackware.

This laptop has PCI Atheros Communications Inc. AR9285 Wireless Network 
Adapter (PCI-Express) (rev 01) network card.  It uses the Linux ath9k
driver, but I'm having problems with it.  Since I've used ndiswrapper
successfully in the past with my old laptop, I thought I'd give it a
try.

I downloaded the SVN trunk for revision 2729.  It compiled and installed
just fine, and the WinXP driver installed as well:

newlaptop-pts/5:/var/log% /usr/sbin/ndiswrapper -l
netathw : driver installed
        device (168C:002B) present (alternate driver: ath9k)

But when I try to modprobe it, I get this error:

May  7 07:11:52 laptop kernel: Disabling lock debugging due to kernel taint
May  7 07:11:52 laptop kernel: ndiswrapper (import:233): unknown symbol: ntoskrn
l.exe:'IoUnregisterPlugPlayNotification'
May  7 07:11:52 laptop kernel: ndiswrapper (import:233): unknown symbol: ntoskrn
l.exe:'IoRegisterPlugPlayNotification'
May  7 07:11:52 laptop kernel: ndiswrapper (import:233): unknown symbol: ntoskrn
l.exe:'DbgPrintEx'
May  7 07:11:52 laptop kernel: BUG: unable to handle kernel paging request at 00
1d8b6c
May  7 07:11:52 laptop kernel: IP: [<001d8b6c>] 0x1d8b6c
May  7 07:11:52 laptop kernel: *pde = 00000000 
May  7 07:11:52 laptop kernel: Oops: 0000 [#1] 
May  7 07:11:52 laptop kernel: last sysfs file: /sys/module/led_class/refcnt

(I've got the whole crash report if you want it)

Did I do something wrong?  Is there any help to be had?  Or do I need to
stick with the problematic ath9k driver?

Thank you very much.

--hymie!    http://lactose.homelinux.net/~hymie    hymie <at> lactose.homelinux.net
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ndiswrapper-kmod-common

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Need another release

Hi, Giri!

We need another release.  It turns out that the i386 compilation was
broken since Linux 2.6.31.  The code assumed that Linux 2.6.31 and newer
export cmpxchg8b() on i386, but it wasn't true for any kernel version.

To anticipate future compile errors, I checked compilation with the
current linux-next branch, which includes changes scheduled for the
future kernels.  Everything was fine for i386 and x86_64.

I made a change to satisfy realtime kernels distributed by Ubuntu.  They
don't have init_MUTEX.

There is one big thing that needs to be done.  It's porting the
configuration from Wireless Extension to cfg80211.  Linux 2.6.33 will
disable wireless extensions unless some old wireless driver is enabled
(e.g. ipw2100).  That will surely result in user complaints.  But that
effort is better done in a separate release.

--

-- 
Regards,
Pavel Roskin

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problen driver USR5421 on linux 64bit

hi,
  I have a usb-key wireless USrobotics 5421

in archlinux 32bit following this:  
http://sourceforge.net/apps/mediawiki/ndiswrapper/index.php?title=US_Robotics_USR805421
all works OK

I have problem installing it on archlinux 64bit
I use this: 
http://www.usr.com/support/5421a/5421a-files/5421-v6.01.19.10x64.exe

but I find only .inf file
and no .sys

can you help me?

thankyou

sacarde <at> tiscali.it

p.s.
http://sourceforge.net/projects/ndiswrapper/forums/forum/323168/topic/3526052/index/page/1

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Powerpc architecture

I have Ubuntu running on a G3 Powerpc, but cannot get the wireless to 
work. Will Ndiswrapper compile and install on a Powerpc?

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how many ethernet card support?

Hi, All,

In the "main page", i see follow line:
-------------------------------------------------------
other devices are known to work: e.g., ethernet cards,
-------------------------------------------------------

I want to know, how many type's of such cards support current time, i
try to find, only find:

  3Com 3C410

      From ndiswrapper

Jump to: navigation
<http://sourceforge.net/apps/mediawiki/ndiswrapper/index.php?title=3Com_3C410#column-one>,
search
<http://sourceforge.net/apps/mediawiki/ndiswrapper/index.php?title=3Com_3C410#searchInput>

    3COM #3C410, HPNA 2.0 (not wireless)

Ndiswrapper can support normal ethernet card, i mean "not wireless", right?

Thanks for your help first!

Best Regards

Bob

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Re: Need help to create driver for Netgear WN111v2

--- On Fri, 2/10/09, Malte Gell <malte.gell <at> gmx.de> wrote:

> "Hin-Tak Leung" <hintak_leung <at> yahoo.co.uk>
> wrote
> 
> > --- On Thu, 1/10/09, Malte Gell <malte.gell <at> gmx.de>
> wrote:
> > > I can unload ndiswrapper without any problems...
> kernel
> > > 2.6.27-29. But, in the
> > > meantime I switched to kernel 2.6.31 and I
> installed
> > > compat-wireless and now
> > > the Fritz! USBN N works with a native driver, so
> I don't
> > > need ndiswrapper any
> > > longer 
>  
> > It would still be nice to know if the new patch works
> or not. 
> 
> Ok, I will try it. 
> 
> Applying the patch failed:
> 
> File to patch: iw_ndis.c
> patching file iw_ndis.c
> Hunk #1 FAILED at 1239.
> 1 out of 1 hunk FAILED -- saving rejects to file
> iw_ndis.c.rej
> 
> I have used ndiswrapper 1.55, I have attached the
> *original* iw_ndis.c so you 
> can look at it and correct the patch.

As Pavel wrote - there is no need to include verbose unmodified/public version of source code, or any part of
- we can get it elsewhere.

It is probably just white space (adding -l option may help), or a possiblity is that Pavel may be working
against svn head instead of 1.55? In any case, since it is just one hunk, it should be applicable by hand...

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