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Re: Cpu stall caused by hostapd running two interfaces

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Hi,

I've updated the kernel to 4.18.1 and then followed the instructions
(I've checked and 0x6e did not changed)
Here is the gdb output:

(gdb) l *(ieee80211_regulatory_limit_wmm_params+0x6e)
0x110e is in ieee80211_regulatory_limit_wmm_params (net/mac80211/util.c:1151).
1146
1147            if (sdata->vif.type == NL80211_IFTYPE_AP)
1148                    wmm_ac = &rrule->wmm_rule->ap[ac];
1149            else
1150                    wmm_ac = &rrule->wmm_rule->client[ac];
1151            qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min);
1152            qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max);
1153            qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn);
1154            qparam->txop = !qparam->txop ? wmm_ac->cot / 32 :
1155                    min_t(u16, qparam->txop, wmm_ac->cot / 32);
(gdb)

2018-08-14 7:14 GMT+02:00 Stanislaw Gruszka <sgruszka@xxxxxxxxxx>:
> On Mon, Aug 13, 2018 at 08:48:17PM +0200, Grzegorz Duszyński wrote:
>> Can I help you somehow with this ?
>
> Enable CONFIG_DEBUG_INFO=y in .config if not done already.
> Then do:
>
> make net/mac80211/util.o
> gdb net/mac80211/util.o
> l *(ieee80211_regulatory_limit_wmm_params+0x6e)
>
> and provide output of gdb l command, this should show code
> line number where oops occurs.
>
> Thanks
> Stanislaw




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