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    SubjectRE: 3.5.0 iwlagn AP crash...
    Date
    > > > BUG: unable to handle kernel NULL pointer dereference at      (null)
    > > > IP: [<ffffffffa02e869d>] ieee80211_ave_rssi+0xd/0x50 [mac80211]
    > >
    > > From my debug kernel, sdata is clearly NULL:
    > >
    > > (gdb) list *0xffffffff815b74f8
    > > 0xffffffff815b74f8 is in ieee80211_ave_rssi (net/mac80211/util.c:1801).
    > > 1796 int ieee80211_ave_rssi(struct ieee80211_vif *vif)
    > > 1797 {
    > > 1798 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
    >
    > I'll look into it, thanks.

    We had a fix, but it seems I missed putting it into 3.5:

    commit e19ebcab01cc130fa832764d453b263460ec3b91
    Author: Ilan Peer <ilan.peer@intel.com>
    Date: Thu May 10 15:53:14 2012 +0300

    iwlwifi: Check BSS ctx active before call mac80211

    I'll ask Greg to include it in 3.5 stable.

    johannes
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