Hi! I'm trying to get an Ar9385 mini-pcie module work on a Marvell Kirkwood board. When adding the PCI ID, the card is detected as AR9300, properly claims to support MCS rates up to 23 and seems to work at first. As soon as any traffic goes over the interface, I previously got ath: DMA failed to stop... ath: Could not stop RX... messages after a while and the card stopped working. Now with more recent compat-wireless (2010-08-10 + OpenWrt patches) it looks like this:
BUG: soft lockup - CPU#0 stuck for 22s! [iperf:4363] Modules linked in: gpio_keys_polled leds_gpio ip6t_REJECT ip6t_LOG ip6t_rt ip6t_hbh ip6t_mh ip6t_ipv6header ip6t_frag ip6t_eui64 ip6t_ah ip6table_raw ip6_queue ip6tabl6 irq event stamp: 0 hardirqs last enabled at (0): [< (null)>] (null) hardirqs last disabled at (0): [<c02f5640>] copy_process+0x34c/0xe1c softirqs last enabled at (0): [<c02f5640>] copy_process+0x34c/0xe1c softirqs last disabled at (0): [< (null)>] (null) Pid: 4363, comm: iperf CPU: 0 Tainted: G W (3.0.0 #17) PC is at ___dma_single_dev_to_cpu+0x34/0xbc LR is at dma_async_memcpy_buf_to_pg+0xa0/0x104 pc : [<c02e9044>] lr : [<c04734e8>] psr: 80000013 sp : c6777c40 ip : c6777c60 fp : c6777c5c r10: 0014b000 r9 : c79f7d80 r8 : 0000014b r7 : c0bd2a98 r6 : 00000001 r5 : 00000028 r4 : c667c628 r3 : c0bd2ab0 r2 : c8000000 r1 : 00000028 r0 : c667c628 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 0005397f Table: 067a8000 DAC: 00000015 [<c02e4e94>] (show_regs+0x0/0x58) from [<c033901c>] (watchdog_timer_fn+0x110/0x164) r4:c6776000 r3:60000093 [<c0338f0c>] (watchdog_timer_fn+0x0/0x164) from [<c031a2c0>] (__run_hrtimer+0xe4/0x1b4) [<c031a1dc>] (__run_hrtimer+0x0/0x1b4) from [<c031adbc>] (hrtimer_interrupt+0x114/0x254) [<c031aca8>] (hrtimer_interrupt+0x0/0x254) from [<c02ed2a8>] (orion_timer_interrupt+0x34/0x44) r9:c06b7cc0 r8:00000000 r7:00000001 r6:c0698f60 r5:c069f888 r4:c0698f60 [<c02ed274>] (orion_timer_interrupt+0x0/0x44) from [<c03399cc>] (handle_irq_event_percpu+0x80/0x238) [<c033994c>] (handle_irq_event_percpu+0x0/0x238) from [<c0339bd0>] (handle_irq_event+0x4c/0x6c) [<c0339b84>] (handle_irq_event+0x0/0x6c) from [<c033b780>] (handle_level_irq+0xc8/0x114) r6:00000000 r5:c069f888 r4:c069f840 r3:00022000 [<c033b6b8>] (handle_level_irq+0x0/0x114) from [<c033935c>] (generic_handle_irq+0x40/0x54) r5:00000001 r4:c06aa304 [<c033931c>] (generic_handle_irq+0x0/0x54) from [<c02e32d0>] (asm_do_IRQ+0x70/0x90) [<c02e3260>] (asm_do_IRQ+0x0/0x90) from [<c02e3b58>] (__irq_svc+0x38/0xa0) Exception stack(0xc6777bf8 to 0xc6777c40) 7be0: c667c628 00000028 7c00: c8000000 c0bd2ab0 c667c628 00000028 00000001 c0bd2a98 0000014b c79f7d80 7c20: 0014b000 c6777c5c c6777c60 c6777c40 c04734e8 c02e9044 80000013 ffffffff r6:0000001e r5:fed20200 r4:ffffffff r3:00000000 [<c02e9010>] (___dma_single_dev_to_cpu+0x0/0xbc) from [<c04734e8>] (dma_async_memcpy_buf_to_pg+0xa0/0x104) r6:c667c628 r5:00000028 r4:c79f7cf8 r3:00000000 [<c0473448>] (dma_async_memcpy_buf_to_pg+0x0/0x104) from [<c0474a18>] (dma_memcpy_to_iovec+0xdc/0x170) [<c047493c>] (dma_memcpy_to_iovec+0x0/0x170) from [<c0536564>] (dma_skb_copy_datagram_iovec+0x7c/0x230) [<c05364e8>] (dma_skb_copy_datagram_iovec+0x0/0x230) from [<c055c924>] (tcp_recvmsg+0x618/0xa58) [<c055c30c>] (tcp_recvmsg+0x0/0xa58) from [<c057cccc>] (inet_recvmsg+0x50/0x64) [<c057cc7c>] (inet_recvmsg+0x0/0x64) from [<c050d9a8>] (sock_recvmsg+0xac/0xc0) r5:00000000 r4:00000000 [<c050d8fc>] (sock_recvmsg+0x0/0xc0) from [<c0510254>] (sys_recvfrom+0x98/0xf0) r8:01393df0 r7:c6777ebc r6:00000000 r5:c779f860 r4:00020000 [<c05101bc>] (sys_recvfrom+0x0/0xf0) from [<c05102d4>] (sys_recv+0x28/0x30) [<c05102ac>] (sys_recv+0x0/0x30) from [<c02e3f60>] (ret_fast_syscall+0x0/0x38) Kernel panic - not syncing: softlockup: hung tasks Backtrace: [<c02e70e8>] (dump_backtrace+0x0/0x11c) from [<c05b5098>] (dump_stack+0x20/0x24) r6:c069f760 r5:00000000 r4:c06b8dc8 r3:60000093 [<c05b5078>] (dump_stack+0x0/0x24) from [<c05b5104>] (panic+0x68/0x1a0) [<c05b509c>] (panic+0x0/0x1a0) from [<c0339040>] (watchdog_timer_fn+0x134/0x164) r3:00000001 r2:00000000 r1:e92dd800 r0:c0644b70 r7:c069f770 [<c0338f0c>] (watchdog_timer_fn+0x0/0x164) from [<c031a2c0>] (__run_hrtimer+0xe4/0x1b4) [<c031a1dc>] (__run_hrtimer+0x0/0x1b4) from [<c031adbc>] (hrtimer_interrupt+0x114/0x254) [<c031aca8>] (hrtimer_interrupt+0x0/0x254) from [<c02ed2a8>] (orion_timer_interrupt+0x34/0x44) r9:c06b7cc0 r8:00000000 r7:00000001 r6:c0698f60 r5:c069f888 r4:c0698f60 [<c02ed274>] (orion_timer_interrupt+0x0/0x44) from [<c03399cc>] (handle_irq_event_percpu+0x80/0x238) [<c033994c>] (handle_irq_event_percpu+0x0/0x238) from [<c0339bd0>] (handle_irq_event+0x4c/0x6c) [<c0339b84>] (handle_irq_event+0x0/0x6c) from [<c033b780>] (handle_level_irq+0xc8/0x114) r6:00000000 r5:c069f888 r4:c069f840 r3:00022000 [<c033b6b8>] (handle_level_irq+0x0/0x114) from [<c033935c>] (generic_handle_irq+0x40/0x54) r5:00000001 r4:c06aa304 [<c033931c>] (generic_handle_irq+0x0/0x54) from [<c02e32d0>] (asm_do_IRQ+0x70/0x90) [<c02e3260>] (asm_do_IRQ+0x0/0x90) from [<c02e3b58>] (__irq_svc+0x38/0xa0) Exception stack(0xc6777bf8 to 0xc6777c40) 7be0: c667c628 00000028 7c00: c8000000 c0bd2ab0 c667c628 00000028 00000001 c0bd2a98 0000014b c79f7d80 7c20: 0014b000 c6777c5c c6777c60 c6777c40 c04734e8 c02e9044 80000013 ffffffff r6:0000001e r5:fed20200 r4:ffffffff r3:00000000 [<c02e9010>] (___dma_single_dev_to_cpu+0x0/0xbc) from [<c04734e8>] (dma_async_memcpy_buf_to_pg+0xa0/0x104) r6:c667c628 r5:00000028 r4:c79f7cf8 r3:00000000 [<c0473448>] (dma_async_memcpy_buf_to_pg+0x0/0x104) from [<c0474a18>] (dma_memcpy_to_iovec+0xdc/0x170) [<c047493c>] (dma_memcpy_to_iovec+0x0/0x170) from [<c0536564>] (dma_skb_copy_datagram_iovec+0x7c/0x230) [<c05364e8>] (dma_skb_copy_datagram_iovec+0x0/0x230) from [<c055c924>] (tcp_recvmsg+0x618/0xa58) [<c055c30c>] (tcp_recvmsg+0x0/0xa58) from [<c057cccc>] (inet_recvmsg+0x50/0x64) [<c057cc7c>] (inet_recvmsg+0x0/0x64) from [<c050d9a8>] (sock_recvmsg+0xac/0xc0) r5:00000000 r4:00000000 [<c050d8fc>] (sock_recvmsg+0x0/0xc0) from [<c0510254>] (sys_recvfrom+0x98/0xf0) r8:01393df0 r7:c6777ebc r6:00000000 r5:c779f860 r4:00020000 [<c05101bc>] (sys_recvfrom+0x0/0xf0) from [<c05102d4>] (sys_recv+0x28/0x30) [<c05102ac>] (sys_recv+0x0/0x30) from [<c02e3f60>] (ret_fast_syscall+0x0/0x38) Any ideas? _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
