Hello. I was trying to create a meshnode which is also a hotspot using the following steps: 1. Create virtual interfaces iw dev wlan0 del iw phy phy0 interface add mesh0 type mp iw phy phy0 interface add ap0 type mp (hostapd will change the type to AP) 2. Set ip-adresses, enable routing, etc. 3. Start hostapd for interface ap0 (channel 13 HT40-) - Clients can connect fine 4. On interface mesh0 start authsae or issue unencrypted mesh (on same channel of course) join via iw on both meshnode and (mesh)gateway (same result) Station dump shows states to switch between OPEN_SNT, HOLDING, LISTEN, but never ESTAB.
As soon as hostapd is killed and step 4 is repeated the mesh is working fine. Issuing step 3 after step 4 seems to work but eventually the mesh de-establishes or even the kernel crashes: [ 5762.749369] ath: Failed to stop TX DMA, queues=0x10f! [ 5762.754738] skb_over_panic: text:d0cc78f3 len:43 put:17 head:cfdcb400 data:cfdcb42e tail:0xcfdcb459 end:0xcfdcb450 dev:<NULL> [ 5762.766246] ------------[ cut here ]------------ [ 5762.769483] kernel BUG at net/core/skbuff.c:127! [ 5762.769483] invalid opcode: 0000 [#1] [ 5762.769483] last sysfs file: /sys/devices/virtual/net/lo/operstate [ 5762.769483] Modules linked in: iptable_filter aes_i586 aes_generic ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables x_tables ipv6 arc4 ath9k mac80211 cfg80211 ath9k_common ath9k_hw ath rtc_cmos ftdi_sio rtc_core compat usbserial rtc_lib evdev led_class ext4 jbd2 crc16 ohci_hcd r6040 ehci_hcd mii usbcore [last unloaded: scsi_wait_scan] [ 5762.769483] [ 5762.769483] Pid: 1092, comm: phy0 Not tainted 2.6.34.10 #1 / [ 5762.769483] EIP: 0060:[<c11f7792>] EFLAGS: 00000292 CPU: 0 [ 5762.769483] EIP is at skb_over_panic+0x32/0x40 [ 5762.769483] EAX: 00000087 EBX: d0cc78f3 ECX: cfd01d8c EDX: c130d274 [ 5762.769483] ESI: 0000005e EDI: cff092e0 EBP: 0000003f ESP: cfd01d88 [ 5762.769483] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 [ 5762.769483] Process phy0 (pid: 1092, ti=cfd00000 task=cf30c760 task.ti=cfd00000) [ 5762.769483] Stack: [ 5762.769483] c130d274 d0cc78f3 0000002b 00000011 cfdcb400 cfdcb42e cfdcb459 cfdcb450 [ 5762.769483] <0> c130b44e cfdcb448 c11f94c3 cf11f420 d0cc78f3 cf740a60 1fdf4140 cf1c5d80 [ 5762.769483] <0> 00000018 cff9c120 cf498000 00000001 cf11f420 d0cc528e 0000003f d0cdce08 [ 5762.769483] Call Trace: [ 5762.769483] [<d0cc78f3>] ? mesh_path_error_tx+0x123/0x210 [mac80211] [ 5762.769483] [<c11f94c3>] ? skb_put+0x33/0x40 [ 5762.769483] [<d0cc78f3>] ? mesh_path_error_tx+0x123/0x210 [mac80211] [ 5762.769483] [<d0cc528e>] ? mesh_plink_broken+0x7e/0xb0 [mac80211] [ 5762.769483] [<d0c9a29f>] ? ieee80211_tx_status+0x9cf/0xc10 [mac80211] [ 5762.769483] [<c10a5a57>] ? kmem_cache_free+0x57/0x80 [ 5762.769483] [<d0d42555>] ? ath_tx_complete_buf+0xd5/0x130 [ath9k] [ 5762.769483] [<d0d44281>] ? ath_drain_txq_list+0xe1/0x140 [ath9k] [ 5762.769483] [<d0d44328>] ? ath_draintxq+0x48/0x180 [ath9k] [ 5762.769483] [<d0d45c3e>] ? ath_drain_all_txq+0xfe/0x140 [ath9k] [ 5762.769483] [<d0d3bf46>] ? ath_prepare_reset+0x46/0xb0 [ath9k] [ 5762.769483] [<d0d3d78f>] ? ath_reset_internal+0x5f/0x1a0 [ath9k] [ 5762.769483] [<d0d3db30>] ? ath_reset_work+0x0/0x10 [ath9k] [ 5762.769483] [<d0d3d8ee>] ? ath_reset+0x1e/0x80 [ath9k] [ 5762.769483] [<d0d3db30>] ? ath_reset_work+0x0/0x10 [ath9k] [ 5762.769483] [<c1034f1f>] ? worker_thread+0x10f/0x200 [ 5762.769483] [<c1038240>] ? autoremove_wake_function+0x0/0x30 [ 5762.769483] [<c1034e10>] ? worker_thread+0x0/0x200 [ 5762.769483] [<c1037eb4>] ? kthread+0x64/0x70 [ 5762.769483] [<c1037e50>] ? kthread+0x0/0x70 [ 5762.769483] [<c1002e36>] ? kernel_thread_helper+0x6/0x10 [ 5762.769483] Code: c9 74 2f 51 ff b0 a0 00 00 00 ff b0 9c 00 00 00 ff b0 a8 00 00 00 ff b0 a4 00 00 00 52 ff 70 50 53 68 74 d2 30 c1 e8 32 2e 08 00 <0f> 0b 83 c4 24 eb fe b9 4e b4 30 c1 eb ca 55 57 56 53 83 ec 04 [ 5762.769483] EIP: [<c11f7792>] skb_over_panic+0x32/0x40 SS:ESP 0068:cfd01d88 [ 5763.039324] ---[ end trace b99b70cd3652a432 ]--- [ 5763.044013] Kernel panic - not syncing: Fatal exception in interrupt [ 5763.050450] Pid: 1092, comm: phy0 Tainted: G D 2.6.34.10 #1 [ 5763.056788] Call Trace: [ 5763.059314] [<c127a56a>] ? panic+0x37/0x91 [ 5763.063577] [<c1005027>] ? oops_end+0x77/0x80 [ 5763.068099] [<c1003636>] ? do_invalid_op+0x66/0x80 [ 5763.073058] [<c11f7792>] ? skb_over_panic+0x32/0x40 [ 5763.078104] [<c1002e29>] ? common_interrupt+0x29/0x30 [ 5763.083333] [<c1022807>] ? vprintk+0x107/0x340 [ 5763.088042] [<d0cc78f3>] ? mesh_path_error_tx+0x123/0x210 [mac80211] [ 5763.094591] [<c127c20e>] ? error_code+0x5e/0x70 [ 5763.099385] [<d0cc78f3>] ? mesh_path_error_tx+0x123/0x210 [mac80211] [ 5763.106017] [<d0cc007b>] ? sta_ht_capa_read+0x2bb/0x5d0 [mac80211] [ 5763.112385] [<c10035d0>] ? do_invalid_op+0x0/0x80 [ 5763.117256] [<c11f7792>] ? skb_over_panic+0x32/0x40 [ 5763.122399] [<d0cc78f3>] ? mesh_path_error_tx+0x123/0x210 [mac80211] [ 5763.128941] [<c11f94c3>] ? skb_put+0x33/0x40 [ 5763.133471] [<d0cc78f3>] ? mesh_path_error_tx+0x123/0x210 [mac80211] [ 5763.140107] [<d0cc528e>] ? mesh_plink_broken+0x7e/0xb0 [mac80211] [ 5763.146467] [<d0c9a29f>] ? ieee80211_tx_status+0x9cf/0xc10 [mac80211] [ 5763.153096] [<c10a5a57>] ? kmem_cache_free+0x57/0x80 [ 5763.158246] [<d0d42555>] ? ath_tx_complete_buf+0xd5/0x130 [ath9k] [ 5763.164524] [<d0d44281>] ? ath_drain_txq_list+0xe1/0x140 [ath9k] [ 5763.170721] [<d0d44328>] ? ath_draintxq+0x48/0x180 [ath9k] [ 5763.176392] [<d0d45c3e>] ? ath_drain_all_txq+0xfe/0x140 [ath9k] [ 5763.182495] [<d0d3bf46>] ? ath_prepare_reset+0x46/0xb0 [ath9k] [ 5763.188510] [<d0d3d78f>] ? ath_reset_internal+0x5f/0x1a0 [ath9k] [ 5763.194700] [<d0d3db30>] ? ath_reset_work+0x0/0x10 [ath9k] [ 5763.200365] [<d0d3d8ee>] ? ath_reset+0x1e/0x80 [ath9k] [ 5763.205683] [<d0d3db30>] ? ath_reset_work+0x0/0x10 [ath9k] [ 5763.211345] [<c1034f1f>] ? worker_thread+0x10f/0x200 [ 5763.216480] [<c1038240>] ? autoremove_wake_function+0x0/0x30 [ 5763.222310] [<c1034e10>] ? worker_thread+0x0/0x200 [ 5763.227267] [<c1037eb4>] ? kthread+0x64/0x70 [ 5763.231704] [<c1037e50>] ? kthread+0x0/0x70 [ 5763.236051] [<c1002e36>] ? kernel_thread_helper+0x6/0x10 I am using Atheros 92xx cards and a compat-wireless built from the o80211s git tree a couple of days ago. Usually this setup should be doable, right? I would be glad to help resolving the issues causing this. Is there another mailinglist which should be set on CC? (Maybe ath9k-devel, wireless-dev, hostap) Best regards, Kai _______________________________________________ Devel mailing list [email protected] http://open80211s.com/mailman/listinfo/devel
