Thread (1 message) 1 message, 1 author, 2012-07-23

RE: 3.5.0 iwlagn AP crash...

From: Berg, Johannes <hidden>
Date: 2012-07-23 06:57:44
Also in: lkml

quoted
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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 [off-list ref]
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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