Re: [Bugme-new] [Bug 30952] New: asix driver broken since 2.6.35

(switched to email.  Please respond via emailed reply-to-all, not via the
bugzilla web interface).

The reporter says "workaround suggested in:
https://bugzilla.kernel.org/show_bug.cgi?id=16831 seems to work well
for me as well".  That workaround appears to be "dump the kernel driver
and use the driver off the vendor's website".


On Sat, 12 Mar 2011 14:02:37 GMT
bugzilla-daemon@bugzilla.kernel.org wrote:

https://bugzilla.kernel.org/show_bug.cgi?id=30952

           Summary: asix driver broken since 2.6.35
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.35+
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Network
        AssignedTo: drivers_network@kernel-bugs.osdl.org
        ReportedBy: lipski.bogdan@gmail.com
        Regression: Yes


Hey,

there a few reports in here logged but I am not sure if they are 100% the same,
anyway you can close this one as duplicate if so.
https://bugzilla.kernel.org/show_bug.cgi?id=16831
https://bugzilla.kernel.org/show_bug.cgi?id=29082

config:
- gentoo x64, fully updated
- tried kernels 2.6.36/2.6.37/2.6.37.3
- network card d-link dub-e100:
asix 5-2:1.0: eth2: register 'asix' at usb-0000:00:1d.7-2, ASIX AX88772 USB 2.0
Ethernet

Bus 005 Device 002: ID 2001:3c05 D-Link Corp. [hex] DUB-E100 Fast Ethernet
[asix]
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          255 Vendor Specific Class
  bDeviceSubClass       255 Vendor Specific Subclass
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x2001 D-Link Corp. [hex]
  idProduct          0x3c05 DUB-E100 Fast Ethernet [asix]
  bcdDevice            0.01
  iManufacturer           1 D-Link Corporation
  iProduct                2 DUB-E100
  iSerial                 3 000001
  bNumConfigurations      1

card is connected directly to scientific atlanta epc2203 cable/voip modem for
internet access, reason is isp locks it down to mac address and i really don't
like calling them in case motherboard changes etc...


the problem:
1. under 2.6.34 (tried 2.6.34-gentoo) everything seems to be well.
2. patch from 2.6.35/signed off by Jussi Kivilinna "[PATCH] asix: check packet
size against mtu+ETH_HLEN instead of ETH_FRAME_LEN"
=> since this patch I am getting a lot of "asix_rx_fixup() Bad RX Length" and
packets get dropped, under ifconfig I see RX error counter increasing for every
message logged in dmesg, number of RX errors can shoot up easily to couple
hundred thousands in just a few hours.
3. tried to revert this patch in 2.6.37.3 as it seems to be just a one-liner,
but it looks like other patches applied to asix.c since 2.6.34 have also some
influence. anyway when reverting this single patch the behaviour with plenty of
error messages logged under dmesg stops and there are no RX errors logged under
ifconfig. however it seems that after some time card starts loosing the packets
again - i will update this report later if I have any further findings.