WRT300N v2 AR5416 (was:MV88E6060 switch)

Sun Oct 15 14:50:17 PDT 2017

On Sat, 14 Oct 2017 17:48:12 +0300 Nerijus Baliunas <nerijus at users.sourceforge.net> wrote:

> Thank you. Another question about wifi - there is no /etc/config/wireless
> file, and even if I create it and reboot the device, wifi is not working
> and there is no wlan0 interface. ath5k module is loaded.

WRT300N v2 has AR5416 card, so the driver should be ath9k. I enabled
kmod-ath9k, but did not check "Support chips used in PC OEM cards" and
"Enable TX99 support (WARNING: testing only, breaks normal operation!)".
The module is loaded when booting, but:

[   14.686040] ath9k 0000:00:01.0: enabling device (0340 -> 0342)
[   15.372420] kmodloader: page allocation failure: order:6, mode:0x240c0c0
[   15.379319] CPU: 0 PID: 1331 Comm: kmodloader Not tainted 4.4.91 #0
[   15.385595] Hardware name: Linksys WRT300N v2
[   15.389993] Backtrace: 
[   15.392516] [<c00150cc>] (dump_backtrace) from [<c00152cc>] (show_stack+0x18/0x1c)
[   15.400134]  r7:00000000 r6:00000006 r5:0240c0c0 r4:00000001
[   15.405870] [<c00152b4>] (show_stack) from [<c0135240>] (dump_stack+0x20/0x28)
[   15.413187] [<c0135220>] (dump_stack) from [<c006f1a4>] (warn_alloc_failed+0xf0/0x118)
[   15.421176] [<c006f0b8>] (warn_alloc_failed) from [<c0071684>] (__alloc_pages_nodemask+0x6c4/0x718)
[   15.430258]  r3:00002001 r2:00000000
[   15.433848]  r7:00000000 r6:0240c0c0 r5:00000006 r4:0240c0c0
[   15.439603] [<c0070fc0>] (__alloc_pages_nodemask) from [<c00718fc>] (alloc_kmem_pages+0x18/0x20)
[   15.448421]  r10:00000002 r9:00000004 r8:00000000 r7:00000000 r6:024080c0 r5:c0a34c10
[   15.456290]  r4:c0a34b80
[   15.458925] [<c00718e4>] (alloc_kmem_pages) from [<c0082714>] (kmalloc_order+0x18/0x4c)
[   15.466991] [<c00826fc>] (kmalloc_order) from [<c00997fc>] (__kmalloc+0x2c/0x120)
[   15.474897] [<c00997d0>] (__kmalloc) from [<bf110098>] (ieee80211_txq_setup_flows+0x90/0x1f8 [mac80211])
[   15.484453]  r7:00000000 r6:0000002f r5:c0a34c10 r4:c0a34b80
[   15.490864] [<bf110008>] (ieee80211_txq_setup_flows [mac80211]) from [<bf0e8f8c>] (ieee80211_register_hw+0x898/0x948 )
[   15.502505]  r7:00000000 r6:0000002f r5:00000000 r4:c0a34b80
[   15.508685] [<bf0e86f4>] (ieee80211_register_hw [mac80211]) from [<bf1cc614>] (ath9k_init_device+0x8e0/0xa04 [ath9k])
[   15.519371]  r10:c0e800fc r9:c0e80010 r8:c0e80010 r7:00000000 r6:00000000 r5:c0a34b80
[   15.527246]  r4:c0a354a0
[   15.529948] [<bf1cbd34>] (ath9k_init_device [ath9k]) from [<bf1d6e20>] (ath_pci_probe+0x240/0x2fc [ath9k])
[   15.539632]  r10:00000000 r9:bf1db968 r8:c0a34b80 r7:00000000 r6:c084bc68 r5:c0a354a0
[   15.547501]  r4:c084bc00
[   15.550170] [<bf1d6be0>] (ath_pci_probe [ath9k]) from [<c0160e64>] (pci_device_probe+0x70/0xbc)
[   15.558911]  r10:c005bec8 r9:00000001 r8:bf1de4c0 r7:00000000 r6:c084bc68 r5:c084bc00
[   15.566785]  r4:bf1de4f4
[   15.569385] [<c0160df4>] (pci_device_probe) from [<c01866b8>] (driver_probe_device+0xf4/0x258)
[   15.578027]  r9:00000001 r8:bf1de4f4 r7:c03ba818 r6:c03ba81c r5:c084bc9c r4:c084bc68
[   15.585842] [<c01865c4>] (driver_probe_device) from [<c018688c>] (__driver_attach+0x70/0x94)
[   15.594315]  r9:00000000 r8:c0372008 r7:c0388b28 r6:bf1de4f4 r5:c084bc9c r4:c084bc68
[   15.602179] [<c018681c>] (__driver_attach) from [<c0184ec4>] (bus_for_each_dev+0x74/0x98)
[   15.610389]  r7:c0388b28 r6:c018681c r5:bf1de4f4 r4:00000000
[   15.616117] [<c0184e50>] (bus_for_each_dev) from [<c018625c>] (driver_attach+0x20/0x28)
[   15.624153]  r6:c055a900 r5:00000000 r4:bf1de4f4
[   15.628850] [<c018623c>] (driver_attach) from [<c0185e70>] (bus_add_driver+0xd4/0x1e8)
[   15.636803] [<c0185d9c>] (bus_add_driver) from [<c0186ed8>] (driver_register+0xa4/0xe8)
[   15.644843]  r7:c0376008 r6:c0376008 r5:bf1e1000 r4:bf1de4f4
[   15.650595] [<c0186e34>] (driver_register) from [<c016070c>] (__pci_register_driver+0x38/0x40)
[   15.659240]  r5:bf1e1000 r4:c0428ee0
[   15.662919] [<c01606d4>] (__pci_register_driver) from [<bf1d6ef8>] (ath_pci_init+0x1c/0x2c [ath9k])
[   15.672150] [<bf1d6edc>] (ath_pci_init [ath9k]) from [<bf1e1014>] (init_module+0x14/0x38 [ath9k])
[   15.681153] [<bf1e1000>] (init_module [ath9k]) from [<c0011d14>] (do_one_initcall+0x1bc/0x200)
[   15.689863] [<c0011b58>] (do_one_initcall) from [<c005d274>] (do_init_module+0x60/0x1a0)
[   15.697985]  r9:c0d83f34 r8:0000001a r7:00000000 r6:c0428420 r5:c06bc800 r4:bf1de540
[   15.705803] [<c005d214>] (do_init_module) from [<c005e87c>] (load_module+0x1444/0x188c)
[   15.713848]  r6:c06bca10 r5:c06bc800 r4:bf1de540
[   15.718540] [<c005d438>] (load_module) from [<c005edd8>] (SyS_init_module+0x114/0x134)
[   15.726460]  r10:00000051 r9:c0d82000 r8:0001276a r7:c1b0417c r6:00000000 r5:b6f2518c
[   15.734358]  r4:0000c17c
[   15.736932] [<c005ecc4>] (SyS_init_module) from [<c00093c0>] (ret_fast_syscall+0x0/0x38)
[   15.745060]  r10:00000000 r9:c0d82000 r8:c0009564 r7:00000080 r6:00000003 r5:00000000
[   15.752956]  r4:00001f02
[   15.755496] Mem-Info:
[   15.757853] active_anon:135 inactive_anon:2 isolated_anon:0
[   15.757853]  active_file:204 inactive_file:193 isolated_file:0
[   15.757853]  unevictable:0 dirty:0 writeback:0 unstable:0
[   15.757853]  slab_reclaimable:181 slab_unreclaimable:1094
[   15.757853]  mapped:246 shmem:3 pagetables:20 bounce:0
[   15.757853]  free:579 free_pcp:0 free_cma:0
[   15.789499] DMA free:2316kB min:444kB low:552kB high:664kB active_anon:540kB inactive_anon:8kB active_file:816kB inaco
[   15.832021] lowmem_reserve[]: 0 0 0
[   15.835528] DMA: 159*4kB (U) 76*8kB (U) 25*16kB (U) 13*32kB (U) 4*64kB (U) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB B
[   15.847828] 400 total pagecache pages
[   15.851504] 0 pages in swap cache
[   15.854830] Swap cache stats: add 0, delete 0, find 0/0
[   15.860105] Free swap  = 0kB
[   15.862988] Total swap = 0kB
[   15.865870] 4096 pages RAM
[   15.868616] 0 pages HighMem/MovableOnly
[   15.872456] 976 pages reserved
[   16.518904] ath9k 0000:00:01.0: Failed to initialize device
[   16.525279] ath9k: probe of 0000:00:01.0 failed with error -12
[   16.535006] kmodloader: done loading kernel modules from /etc/modules.d/*

is it because of low RAM?
# cat /proc/meminfo 
MemTotal:          12480 kB
MemFree:             576 kB

Regards,
Nerijus