kernel panic when set mac address of FEC

[Bryan Wu]

From upstream, we got an patch to fix this kernel panic issue. The function fec_set_mac_address will cause kernel panic.

Paul and Tobin, could you please help me to test this on your Babbage hardware? just run ifconfig to change the mac address of eth0, to see whether kernel will panic. If yes, I will apply the patch from upstream and upload testing kernel package for you guys.

Thanks a lot,
-Bryan

[Bryan Wu (cooloney)]

I already prepared a testing kernel here:
http://people.canonical.com/~roc/kernel/lp575558/

And my git tree is here:
http://kernel.ubuntu.com/git?p=roc/ubuntu-lucid.git;a=shortlog;h=refs/heads/lp575558

Please help me to verify this patch fix the kernel panic issue
Thanks,
-Bryan

[Martin Pitt (pitti)]

Accepted linux-fsl-imx51 into lucid-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

[Tobin Davis (gruemaster)]

Ran "sudo ifconfig eth0 hw ether <modified mac>" and "sudo ifconfig eth0 hw ether <orig mac>" several times with checks in between each change. mac changes took, no hangs.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux-fsl-imx51 - 2.6.31-608.15

---------------
linux-fsl-imx51 (2.6.31-608.15) lucid-proposed; urgency=low

  [ Andy Whitcroft ]

  * rebase to Ubuntu-2.6.31-22.61
  * update to ubuntu-debian:7e708d33054c373faf41da23b73e8b48c342d958
    - LP: #570500, #576274

  [ Bryan Wu ]

  * SAUCE: IMX51: fix stgl5000 regulator_get failing error
    - LP: #567157

  [ Mattias Walstrom ]

  * (pre-upstream) FEC: Fix kernel panic in fec_set_mac_address.
    - LP: #575558

  [ Upstream Kernel Changes ]

  * ENGR00120510 atlas switch mode control
  * ENGR00120456 mx51: set VIOHI always on
  * ENGR00121069: MX51: Complete the constraints for the various
    regulators.
  * ENGR00121385 MX51: Leave MC13892 VUSB Turned on for USB OTG to work
  * netdev/fec: fix ifconfig eth0 down hang issue
    - LP: #559065

  [ Ubuntu: 2.6.31-22.61 ]

  * SAUCE: docs -- fix doc strings for fc_event_seq
  * update to ubuntu-debian:7e708d33054c373faf41da23b73e8b48c342d958
    - LP: #570500, #576274
  * SAUCE: sched: update load count only once per cpu in 10 tick update
    window
    - LP: #513848
  * (pre-stable) x86-32, resume: do a global tlb flush in S4 resume
    - LP: #531309
  * PCI: Ensure we re-enable devices on resume
    - LP: #566149
 -- Stefan Bader <email address hidden> Mon, 14 Jun 2010 11:58:42 +0200