On Mon, Jul 06, 2015 at 10:02:29AM -0400, fred veldini via Devel wrote:
> Hello,
>
> Doing some testing with latest wireless-testing build 4.1 and have run into
> constant Kernel Panics and then system reboots. The funny part is the
> reboot's could be within minutes of the box booting or in a couple of
> hours. But the message is always the same.
Yikes!
> Just as a sanity check I put Kernel 4.1-rc8 back on the system and
> everything ran great since last friday.
>
> [ 94.111745] BUG: unable to handle kernel paging request at 20202054
Hmm, pointer is in the ascii range: " 6" ... odd, could be an unrelated
memory corruption. Might try with the SLUB poison checks turned on.
> [ 94.112012] [<f832c518>] mesh_nexthop_lookup+0xc7/0xd9 [mac80211]
> [ 94.112012] [<f832c55e>] mesh_nexthop_resolve+0x34/0xe7 [mac80211]
> [ 94.112012] [<f8311eb2>] ieee80211_xmit+0x92/0xc1 [mac80211]
Stack trace looks like this code:
if (next_hop) {
memcpy(hdr->addr1, next_hop->sta.addr, ETH_ALEN);
memcpy(hdr->addr2, sdata->vif.addr, ETH_ALEN);
ieee80211_mps_set_frame_flags(sdata, next_hop, hdr);
err = 0;
}
We're doing a lookup in preparation for sending ARP reply back to requestor.
next_hop is null checked though, and hdr should be valid here...
Could you bisect it by any chance? I don't see any changes between
v4.1-rc8 and v4.1 in mac80211. What's the commit sha-1 you're testing in
wireless-testing?
--
Bob Copeland %% http://bobcopeland.com/
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