Wrt3200acm kmod-mac80211 - 4.4.71+2017-01-31-2 trace in kernel.log

eduperez · July 11, 2017, 10:20pm

Looks like this known bug on the wifi drivers for that device:

10.3.4.0-20170606 driver problem?

opened 05:01PM - 05 Jul 17 UTC

closed 06:03AM - 13 Jul 17 UTC

ValCher1961

When testing iperf with the last driver on wrt3200, I'm getting this. ``` [ 4…] 15.00-16.00 sec 39.3 MBytes 330 Mbits/sec 0 428 KBytes [ 4] 16.00-17.00 sec 38.5 MBytes 323 Mbits/sec 0 428 KBytes [ 109.213069] ------------[ cut here ]------------ [ 109.217755] WARNING: CPU: 0 PID: 0 at net/mac80211/rx.c:4326 ieee80211_rx_napi+0x5ca/0x690 [mac80211] [ 109.227030] Modules linked in: xt_nat ipt_MASQUERADE nf_nat_masquerade_ipv4 ipt_REJECT nf_reject_ipv4 xt_TCPMSS xt_tcpudp xt_conntrack iptable_mangle iptable_filter nf_nat_ftp nf_conntrack_ftp nf_nat_proto_gre ip_gre gre iptable_nat ip_tables nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack libcrc32c x_tables bridge stp llc mwlwifi mac80211 cfg80211 [ 109.259545] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.12.0 #3 [ 109.265487] Hardware name: Marvell Armada 380/385 (Device Tree) [ 109.271441] [<c010c2e9>] (unwind_backtrace) from [<c0108ddb>] (show_stack+0xb/0xc) [ 109.279045] [<c0108ddb>] (show_stack) from [<c02d7691>] (dump_stack+0x71/0x80) [ 109.286300] [<c02d7691>] (dump_stack) from [<c011991d>] (__warn+0xad/0xc0) [ 109.293203] [<c011991d>] (__warn) from [<c011999b>] (warn_slowpath_null+0x13/0x18) [ 109.300832] [<c011999b>] (warn_slowpath_null) from [<bf899cdb>] (ieee80211_rx_napi+0x5ca/0x690 [mac80211]) [ 109.310559] [<bf899cdb>] (ieee80211_rx_napi [mac80211]) from [<bf94f939>] (pcie_rx_recv_ndp+0x74c/0x81c [mwlwifi]) [ 109.320958] [<bf94f939>] (pcie_rx_recv_ndp [mwlwifi]) from [<c011ce0b>] (tasklet_action+0x53/0xac) [ 109.329955] [<c011ce0b>] (tasklet_action) from [<c011cf43>] (__do_softirq+0x9f/0x198) [ 109.337818] [<c011cf43>] (__do_softirq) from [<c011d223>] (irq_exit+0x6f/0x94) [ 109.345071] [<c011d223>] (irq_exit) from [<c01493db>] (__handle_domain_irq+0x43/0x7c) [ 109.352934] [<c01493db>] (__handle_domain_irq) from [<c0101355>] (gic_handle_irq+0x39/0x6c) [ 109.361319] [<c0101355>] (gic_handle_irq) from [<c0109625>] (__irq_svc+0x65/0x94) [ 109.368832] Exception stack(0xc0a01f38 to 0xc0a01f80) [ 109.373902] 1f20: 00000001 00000000 [ 109.382113] 1f40: c0a01f90 c0113141 c0a00000 c0a03d04 c0a03cb4 c09497a8 c0a01f90 00000000 [ 109.390324] 1f60: 00000000 c092f8c0 c0533cf5 c0a01f88 c01068d5 c01068d6 40070033 ffffffff [ 109.398535] [<c0109625>] (__irq_svc) from [<c01068d6>] (arch_cpu_idle+0x22/0x24) [ 109.405963] [<c01068d6>] (arch_cpu_idle) from [<c0141643>] (do_idle+0xf3/0x158) [ 109.413303] [<c0141643>] (do_idle) from [<c014186f>] (cpu_startup_entry+0x13/0x14) [ 109.420906] [<c014186f>] (cpu_startup_entry) from [<c0900a07>] (start_kernel+0x2d3/0x2dc) [ 4] 17.00-18.[ 109.429135] ---[ end trace fc7fb1121835fba3 ]--- 00 sec 35.6 MBytes 299 Mbits/sec 0 428 KBytes [ 4] 18.00-19.00 sec 32.7 MBytes 275 Mbits/sec 0 428 KBytes [ 4] 19.00-20.00 sec 38.3 MBytes 321 Mbits/sec 0 428 KBytes [ 4] 20.00-21.00 sec 38.7 MBytes 325 Mbits/sec 0 428 KBytes ``` The driver installed several times on kernel 4.11.8 and 4.12.

It has probably been fixed on recent releases of that driver, you can try my builds at: