[Ndiswrapper-general] Suspend broken after upgrade

[Javier K. <jk...@us...>]

Hi,

I have the Broadcom BCM4306 card that comes with the eMachines M6805
laptop. I just upgraded from version 1.8 of ndiswrapper to version 1.15,
and suspend/hibernation broke for the card. Previously it would restore
the network interface and link to working state after resume, now the
network does not work after resume. I'm using WEP on this link, in case
this matters. Note that I just upgraded to Debian's ndiswrapper 1.16 and
the problem persists.

I can reproduce this issue both with the same Windows driver I was using
with ndiswrapper 1.15 (3.120.27.0) and with the latest version I could
find (4.10.40.1), which doesn't work with the older ndiswrapper due to
missing symbols.

I've been told that this could be caused due to a recent change, where
ndiswrapper does not try to setup encryption after resume, as it did
before. If this were the case, wouldn't it be a regression in
ndiswrapper? Moreover, I couldn't find any references to this behavior
change in the change log, project's forums, wiki or the www, and the
mailing list is not archived according to SF.net.

Anyway, if this were expected behavior, could somebody give me a hint on
what changes are usually needed to get this to work as before?

Additional information below:

I'm using Debian's version of ndiswrapper, but last week I tried
compiling it myself, and I got the same behavior. Moreover, I went back
to ndiswrapper 1.8 after the first attempt and got working
suspend/resume once again. The kernel remains the same when switching
from one version to the other. Restarting the system does not make a
difference.

Here follows the banner that ndiswrapper displays when staring the
network interface:
ndiswrapper version 1.15 loaded (preempt=3Dno,smp=3Dno)
ndiswrapper: driver bcmwl5 (Broadcom,12/17/2005,
4.10.40.1) loaded
ACPI: PCI Interrupt 0000:00:0c.0[A] -> GSI 18 (level,
low) -> IRQ 21
ndiswrapper: using irq 21
wlan0: vendor: ''
wlan0: ndiswrapper ethernet device 00:90:96:8a:db:f4
using driver bcmwl5, 14E4:4320.5.conf
wlan0: encryption modes supported: WEP; TKIP with WPA,
WPA2, WPA2PSK; AES/CCMP with WPA, WPA2, WPA2PSK
wlan0: no IPv6 routers present

And this is what it reports since the upgrade when attempting to suspend
or resume:
ndiswrapper (miniport_set_power_state:374): wlan0 does not support power
management; halting the device

I found that bringing down the interface and then back up gives me
working networking. However, the following is printed when bringing down
the interface after a resume, since the upgrade:
ndiswrapper (ntoskernel_exit:239): Windows driver didn't free all MDLs;
freeing them now

Thanks,
--=20
Javier Kohen <jk...@us...>
ICQ: blashyrkh #2361802
Jabber: jk...@ja...