> maybe I should report to openwrt-devel list, but I think it is the problem > of ath9k, caused by using the module minstrel_ht.
I have the same issue using ath9k/minstrel_ht. I think the problem is due to the way the "streams" variable is calculated in minstrel_ht_get_group_idx(). I printed some info when the warning occurs: minstrel_ht_get_group_idx[120]: streams 12 rate->flags & flags 32 minstrel_ht_get_group_idx[125]: minstrel_mcs_groups[0].streams 1 minstrel_mcs_groups[0].flags 0 minstrel_ht_get_group_idx[125]: minstrel_mcs_groups[1].streams 2 minstrel_mcs_groups[1].flags 0 minstrel_ht_get_group_idx[125]: minstrel_mcs_groups[2].streams 1 minstrel_mcs_groups[2].flags 128 minstrel_ht_get_group_idx[125]: minstrel_mcs_groups[3].streams 2 minstrel_mcs_groups[3].flags 128 minstrel_ht_get_group_idx[125]: minstrel_mcs_groups[4].streams 1 minstrel_mcs_groups[4].flags 32 minstrel_ht_get_group_idx[125]: minstrel_mcs_groups[5].streams 2 minstrel_mcs_groups[5].flags 32 minstrel_ht_get_group_idx[125]: minstrel_mcs_groups[6].streams 1 minstrel_mcs_groups[6].flags 160 minstrel_ht_get_group_idx[125]: minstrel_mcs_groups[7].streams 2 minstrel_mcs_groups[7].flags 160 ------------[ cut here ]------------ WARNING: at /home/lorenzo/src/openwrt/buildroot/build_dir/linux-ar71xx/compat-wireless-2010-03-03/net/mac80211/rc80211_minstrel_ht.c:127 0x81f) Modules linked in: ath9k ath9k_common ath9k_hw ath mac80211 cfg80211 compat_firmware_class compat deflate cbc Call Trace:[<80069d48>] 0x80069d48 [<80069d48>] 0x80069d48 [<81fa32f4>] 0x81fa32f4 [<80082d58>] 0x80082d58 [<81fa32f4>] 0x81fa32f4 [<81fa32f4>] 0x81fa32f4 [<800b9f90>] 0x800b9f90 [<8006de40>] 0x8006de40 [<81f81cbc>] 0x81f81cbc [<81f280b4>] 0x81f280b4 [<81f2a26c>] 0x81f2a26c [<800ba25c>] 0x800ba25c [<81fc11f0>] 0x81fc11f0 [<81f2aa3c>] 0x81f2aa3c [<81f273c8>] 0x81f273c8 [<81f262c4>] 0x81f262c4 [<8020b214>] 0x8020b214 [<81f23570>] 0x81f23570 [<800891d0>] 0x800891d0 [<800897e4>] 0x800897e4 [<80089e54>] 0x80089e54 [<8006082c>] 0x8006082c [<800897e4>] 0x800897e4 [<804179e8>] 0x804179e8 [<81f23570>] 0x81f23570 [<80060820>] 0x80060820 [<80074024>] 0x80074024 [<80060820>] 0x80060820 [<8052bb0c>] 0x8052bb0c [<804179e8>] 0x804179e8 [<80417a08>] 0x80417a08 [<8050f6e8>] 0x8050f6e8 [<80417a08>] 0x80417a08 [<8056c0fc>] 0x8056c0fc [<8055be90>] 0x8055be90 [<80445428>] 0x80445428 [<805705f4>] 0x805705f4 [<8006f730>] 0x8006f730 [<805704c8>] 0x805704c8 [<8006f720>] 0x8006f720 ---[ end trace 454674867bb3dfb4 ]--- > the reason I try minstrel_ht is I could only get around 50Mbps throughput > rate by using ath9k for my AR9280 card. some developer said the low > throughput is a known problem for ath9k on IPX4xx platform, it was kind of > optimizing work. I still cannot see any light on this problem since last > year. > > I saw the crashing on several trunk since OpenWrt r20294, till r20851, yes > it was caused by iperf test while it was just nice by ping test. > topology: PC1 - STA - AP - PC2 > > iperf/ping was form PC1 to PC2, the crash happened on both AP and STA, > > see attachment for the log, Thank You !! > > > > _______________________________________________ > ath9k-devel mailing list > ath9k-devel@lists.ath9k.org > https://lists.ath9k.org/mailman/listinfo/ath9k-devel > > Regards Lorenzo _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
