Wireless problems on 8.0-RELEASE

[Ian Smith]

On Tue, 19 Jan 2010, Alex wrote:
 > On Tue, 19 Jan 2010 12:17:49 +0000
 > Paul B Mahol <onemda at gmail.com> wrote:
 > 
 > > On 1/19/10, Alex <alex323 at gmail.com> wrote:
 > > > On Mon, 18 Jan 2010 21:34:27 +0000
 > > > Paul B Mahol <onemda at gmail.com> wrote:
 > > >
 > > >> On 1/18/10, Alex <alex323 at gmail.com> wrote:
 > > >> > On Mon, 18 Jan 2010 16:23:56 +0000
 > > >> > Paul B Mahol <onemda at gmail.com> wrote:
 > > >> >
 > > >> >> On 1/18/10, Alex <alex323 at gmail.com> wrote:
 > > >> >> > The module is loaded at boot time in loader.conf, but I think
 > > >> >> > this is the message you were looking for:
 > > >> >> >
 > > >> >> > ntoskrnl dummy called...
 > > >> >>
 > > >> >> I was looking for:
 > > >> >>
 > > >> >> no match for IoWMIQueryAllData
 > > >> >> no match for IoWMIOpenBlock
 > > >> >>
 > > >> >> Does message appears only when uploading
 > > >> >> or just always, after boot is completed
 > > >> >> but before interface is turned up (via ifconfig)
 > > >> >>
 > > >> >
 > > >> > I've never seen those messages in the dmesg output. Strangely,
 > > >> > the only method by which I can successfully upload large files
 > > >> > is scp.
 > > >>
 > > >> Here is my test results (another driver/card combination):
 > > >> With opera and gmail, upload "stuck" at ~32kb but rtorrent and sftp
 > > >> uploads just fine. Upload of 1.3M file in opera stuck at few kb but
 > > >> it was complete after
 > > >> few seconds.
 > > >>
 > > >> >> You said that 7.2 doesnt have this problem,
 > > >> >> are you using same SYS and INF files with 8.0 ?
 > > >> >>
 > > >> >
 > > >> > No, because Lenovo released updates for the driver. Both the
 > > >> > older version of the driver (the one I used on 7.2) and the
 > > >> > newest version of the driver produce the same problems on 8.0.
 > > >> > If you want, I can upload the older version of the driver too.
 > > >>
 > > >> Try to remove line with OID_GEN_CURRENT_LOOKAHEAD
 > > >> in /sys/dev/if_ndis.c, rebuild and reinstall if_ndis module and see
 > > >> if that helps.
 > > >>
 > > >
 > > > /sys/dev/if_ndis.c does not exist,
 > > > however /sys/dev/if_ndis/if_ndis.c does exist. I have commented out
 > > > the line and executed:
 > > >
 > > > make buildkernel
 > > > make installkernel
 > > >
 > > > but it did not seem to fix the problem (I don't use modules -- I
 > > > only compile in what I need).
 > > >
 > > >> Why are you have tso disabled, does it works with tso enabled?
 > > >> Are there any other custom sysctl options?
 > > >>
 > > >
 > > > If I recall correctly, someone on IRC recommended I try disabling
 > > > that. Changing this setting had no effect -- the problem existed
 > > > either way. It is enabled now. No other sysctl options are in
 > > > effect.
 > > >
 > > >> What is signal strength of the AP? And current link speed? (this
 > > >> one is available only on CURRENT and from my git repo code)
 > > >
 > > > SSID/MESH ID    BSSID              CHAN RATE   S:N     INT CAPS
 > > > skynet          00:28:10:00:28:10    6   54M -71:-96  100 EP
 > > >
 > > > media: IEEE 802.11 Wireless Ethernet OFDM/36Mbps mode 11g
 > > That one is just after association, code from CURRENT have fixed this.
 > > 
 > > Does lowering mtu of wlan0 interface to 1400 helps?
 > > 
 > > Speaking about "ntoskrnl dummy called..."
 > > 
 > > Try to change return value of IoWMIRegistrationControl, in
 > > /sys/compat/ndis/subr_ntoskrnl.c , from STATUS_SUCCESS to
 > > STATUS_NOT_IMPLEMENTED and recompile/reinstall kernel.
 > > 
 > 
 > I have changed the return value, but the ntoskrnl messages are still
 > being displayed at a rate of about one per second.
 > 
 > I have changed the MTU and am now able to log in to gmail, however when
 > I do the following message appears:
 > 
 > "Some Gmail features have failed to load due to an Internet
 > connectivity problem."
 > 
 > Moreover, the user interface is unresponsive.

Are you sure that your firewall is not blocking ICMP traffic, 
specifically icmptype 3, so preventing path MTU discovery?

cheers, Ian