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    Subject[regression?] e1000e breaks IPMI
    it seems that e1000e breaks IPMI support on at least some motherboards (ie SuperMicro PDSMi-LN4 with AOC-IPMI20-E+ module, and also others).
    When e1000e module is loaded, IPMI module stops to respond. The problem is, that it was working before, so I tried examining further and bisect showed that following commit caused it to stop working:

    commit 5918bd88effd0233a048983570ec5803f5f753dc
    Author: Auke Kok <>
    Date: Tue Feb 12 15:20:24 2008 -0800

    e1000e: Fix CRC stripping in hardware context bug

    CRC stripping was only correctly enabled for packet split recieves
    which is used when receiving jumbo frames. Correctly enable SECRC
    also for normal buffer packet receives.

    Tested by Andy Gospodarek and Johan Andersson, see bugzilla #9940.

    Signed-off-by: Auke Kok <>
    Signed-off-by: Jeff Garzik <>

    I can confirm that reverting the patch makes IPMI work again. So it either is a regression, or maybe just trigger for some other bug (seems more likely to me). Pity I haven't noticed it sooner, we've been using older e1000[e] drivers up to now.

    Any suggestions on where the problem could be?



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