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Opened 5 years ago

Last modified 5 years ago

#12466 reopened defect

wndr3700v2 / 3.6.6 kernel: swapper: page allocation failure

Reported by: raver@… Owned by: developers
Priority: normal Milestone:
Component: packages Version: Trunk
Keywords: Cc:

Description

Hi
WNDR3700v2 / 3.6.6 kernel r34112 throws me swap errors. I did check the swap partition and no errors shown.
After the first error occur, swap usage is always 0.
With 3.3.8 kernel r34112 everything works fine.

root@Netgear:~# free
             total         used         free       shared      buffers
Mem:         61772        60528         1244            0          832
-/+ buffers:              59696         2076
Swap:       252676            0       252676


[   56.500000] br-lan: port 3(wlan1) entered forwarding state
[13364.710000] nf_conntrack: automatic helper assignment is deprecated and it will be removed soon. Use the iptables CT target to attach helpers instead.
[15141.110000] swapper: page allocation failure: order:0, mode:0x20
[15141.110000] Call Trace:[<802719e4>] 0x802719e4
[15141.110000] [<802719e4>] 0x802719e4
[15141.110000] [<800b1480>] 0x800b1480
[15141.110000] [<800b37b0>] 0x800b37b0
[15141.110000] [<801e3020>] 0x801e3020
[15141.110000] [<800a76d4>] 0x800a76d4
[15141.110000] [<801e67c8>] 0x801e67c8
[15141.110000] [<831940b8>] 0x831940b8
[15141.110000] [<832e691c>] 0x832e691c
[15141.110000] [<800aa534>] 0x800aa534
[15141.110000] [<832e4fe8>] 0x832e4fe8
[15141.110000] [<800793e0>] 0x800793e0
[15141.110000] [<80078b84>] 0x80078b84
[15141.110000] [<80300000>] 0x80300000
[15141.110000] [<800aa3c4>] 0x800aa3c4
[15141.110000] [<80300000>] 0x80300000
[15141.110000] [<80078db0>] 0x80078db0
[15141.110000] [<800abad0>] 0x800abad0
[15141.110000] [<80078fe4>] 0x80078fe4
[15141.110000] [<8006306c>] 0x8006306c
[15141.110000] [<80063240>] 0x80063240
[15141.110000] [<80300000>] 0x80300000
[15141.110000] [<800975e0>] 0x800975e0
[15141.110000] [<80064aa8>] 0x80064aa8
[15141.110000] [<80063260>] 0x80063260
[15141.110000] [<802e18f0>] 0x802e18f0
[15141.110000] [<80270000>] 0x80270000
[15141.110000] [<802e12a8>] 0x802e12a8
[15141.110000] 
[15141.110000] Mem-Info:
[15141.110000] Normal per-cpu:
[15141.110000] CPU    0: hi:   18, btch:   3 usd:   3
[15141.110000] active_anon:520 inactive_anon:535 isolated_anon:0
[15141.110000]  active_file:4816 inactive_file:5111 isolated_file:0
[15141.110000]  unevictable:0 dirty:1 writeback:1088 unstable:0
[15141.110000]  free:96 slab_reclaimable:1019 slab_unreclaimable:1286
[15141.110000]  mapped:484 shmem:128 pagetables:125 bounce:0
[15141.110000] Normal free:384kB min:1016kB low:1268kB high:1524kB active_anon:2080kB inactive_anon:2140kB active_file:19264kB inactive_file:20444kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0kB dirty:4kB writeback:4352kB mapped:1936kB shmem:512kB slab_reclaimable:4076kB slab_unreclaimable:5144kB kernel_stack:560kB pagetables:500kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
[15141.110000] lowmem_reserve[]: 0 0
[15141.110000] Normal: 0*4kB 0*8kB 0*16kB 4*32kB 4*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
[15141.110000] 10055 total pagecache pages
[15141.110000] 0 pages in swap cache
[15141.110000] Swap cache stats: add 0, delete 0, find 0/0
[15141.110000] Free swap  = 252676kB
[15141.110000] Total swap = 252676kB
[15141.110000] 16384 pages RAM
[15141.110000] 941 pages reserved
[15141.110000] 12970 pages shared
[15141.110000] 5193 pages non-shared
...

Attachments (0)

Change History (14)

comment:1 Changed 5 years ago by florian

Please try again with the latest kernel update to 3.6.7.

comment:2 Changed 5 years ago by raver@…

Hi florian,
It seems solved. Swap space now shows non-zero usage.
I think you can close the ticket.

root@Netgear:/tmp# free
             total         used         free       shared      buffers
Mem:         61772        50112        11660            0         1360
-/+ buffers:              48752        13020
Swap:       252676         3820       248856

comment:3 Changed 5 years ago by florian

  • Resolution set to fixed
  • Status changed from new to closed

comment:4 Changed 5 years ago by raver@…

  • Resolution fixed deleted
  • Status changed from closed to reopened

Hi,
Unfortunately 3.6.8 kernel brought this again. I'm using r34427, built after 'make dirclean'.

Dec  2 22:23:55 Netgear kern.warn kernel: [29041.690000] swapper: page allocation failure: order:0, mode:0x20
Dec  2 22:23:56 Netgear kern.warn kernel: [29041.690000] Call Trace:[<802722a0>] 0x802722a0
Dec  2 22:23:56 Netgear kern.warn kernel: [29041.690000] [<802722a0>] 0x802722a0
Dec  2 22:23:56 Netgear kern.warn kernel: [29041.690000] [<800b14f0>] 0x800b14f0
Dec  2 22:23:56 Netgear kern.warn kernel: [29041.690000] [<800b3820>] 0x800b3820
Dec  2 22:23:56 Netgear kern.warn kernel: [29041.690000] [<801e37e0>] 0x801e37e0
Dec  2 22:23:56 Netgear kern.warn kernel: [29041.690000] [<801e6fb0>] 0x801e6fb0
Dec  2 22:23:56 Netgear kern.warn kernel: [29041.690000] [<830d40b8>] 0x830d40b8
Dec  2 22:23:56 Netgear kern.warn kernel: [29041.690000] [<8326691c>] 0x8326691c
Dec  2 22:23:56 Netgear kern.warn kernel: [29041.690000] [<83264fe8>] 0x83264fe8
Dec  2 22:23:56 Netgear kern.warn kernel: [29041.690000] [<80079460>] 0x80079460
Dec  2 22:23:56 Netgear kern.warn kernel: [29041.690000] [<80078c04>] 0x80078c04
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<80300000>] 0x80300000
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<800aa434>] 0x800aa434
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<80300000>] 0x80300000
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<80078e30>] 0x80078e30
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<800abb40>] 0x800abb40
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<80079064>] 0x80079064
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<800630ec>] 0x800630ec
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<800632c0>] 0x800632c0
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<80300000>] 0x80300000
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<80097660>] 0x80097660
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<800ab868>] 0x800ab868
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<80064b28>] 0x80064b28
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<800632e0>] 0x800632e0
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<802e18f0>] 0x802e18f0
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] [<802e12a8>] 0x802e12a8
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] 
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] Mem-Info:
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] Normal per-cpu:
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] CPU    0: hi:   18, btch:   3 usd:   6
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] active_anon:1605 inactive_anon:1664 isolated_anon:0
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000]  active_file:3790 inactive_file:3893 isolated_file:0
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000]  unevictable:0 dirty:1 writeback:1104 unstable:0
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000]  free:95 slab_reclaimable:1175 slab_unreclaimable:1306
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000]  mapped:289 shmem:126 pagetables:136 bounce:0
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] Normal free:380kB min:1016kB low:1268kB high:1524kB active_anon:6420kB inactive_anon:6656kB active_file:15160kB inactive_file:15572kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] lowmem_reserve[]: 0 0
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] Normal: 1*4kB 1*8kB 1*16kB 3*32kB 4*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 380kB
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] 7809 total pagecache pages
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] 0 pages in swap cache
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] Swap cache stats: add 2, delete 2, find 0/0
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] Free swap  = 252668kB
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] Total swap = 252676kB
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] 16384 pages RAM
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] 941 pages reserved
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] 9949 pages shared
Dec  2 22:23:56 Netgear kern.warn kernel: [29042.620000] 7442 pages non-shared
Dec  2 22:23:56 Netgear kern.err kernel: [29042.850000] ath: skbuff alloc of size 1926 failed
...

comment:5 follow-up: Changed 5 years ago by raver@…

Don't know if it might help, but I just tried r34472 with 3.6.7 kernel and the problem seems to be gone.

Linux Netgear 3.6.7 #2 Tue Dec 4 16:11:35 WET 2012 mips GNU/Linux
root@Netgear:~# free
             total         used         free       shared      buffers
Mem:         61792        60424         1368            0         9392
-/+ buffers:              51032        10760
Swap:       252676         1740       250936

comment:6 in reply to: ↑ 5 ; follow-up: Changed 5 years ago by anonymous

Tried with now active 3.6.9?

Replying to raver@…:

Don't know if it might help, but I just tried r34472 with 3.6.7 kernel and the problem seems to be gone.

Linux Netgear 3.6.7 #2 Tue Dec 4 16:11:35 WET 2012 mips GNU/Linux
root@Netgear:~# free
             total         used         free       shared      buffers
Mem:         61792        60424         1368            0         9392
-/+ buffers:              51032        10760
Swap:       252676         1740       250936

comment:7 in reply to: ↑ 6 Changed 5 years ago by raver@…

Replying to anonymous:

Tried with now active 3.6.9?

I tried it and it did happen once. Now I'm using 3.6.10 r34639 and still having problems, but now the error seems a bit different.

[   57.380000] br-lan: port 3(wlan1) entered forwarding state
[ 3040.510000] kworker/u:1: page allocation failure: order:0, mode:0x20
[ 3040.510000] Call Trace:[<802715c8>] 0x802715c8
[ 3040.510000] [<802715c8>] 0x802715c8
[ 3040.510000] [<800b1580>] 0x800b1580
[ 3040.510000] [<800b38b0>] 0x800b38b0
[ 3040.510000] [<8329b5b4>] 0x8329b5b4
[ 3040.510000] [<801e2ca0>] 0x801e2ca0
[ 3040.510000] [<801e42ec>] 0x801e42ec
[ 3040.510000] [<801e6470>] 0x801e6470
[ 3040.510000] [<832c80b8>] 0x832c80b8
[ 3040.510000] [<83266028>] 0x83266028
[ 3040.510000] [<832647cc>] 0x832647cc
[ 3040.510000] [<80079460>] 0x80079460
[ 3040.510000] [<80078c04>] 0x80078c04
[ 3040.510000] [<800aa4c4>] 0x800aa4c4
[ 3040.510000] [<80078e30>] 0x80078e30
[ 3040.510000] [<83264808>] 0x83264808
[ 3040.510000] [<80079064>] 0x80079064
[ 3040.510000] [<800630ec>] 0x800630ec
[ 3040.510000] [<80097208>] 0x80097208
[ 3040.510000] [<80097670>] 0x80097670
[ 3040.510000] [<801ad968>] 0x801ad968
[ 3040.510000] [<8016b724>] 0x8016b724
[ 3040.510000] [<801ae388>] 0x801ae388
[ 3040.510000] [<80096c04>] 0x80096c04
[ 3040.510000] [<801ae244>] 0x801ae244
[ 3040.510000] [<80087a58>] 0x80087a58
[ 3040.510000] [<80097670>] 0x80097670
[ 3040.510000] [<802e0000>] 0x802e0000
[ 3040.510000] [<802e0000>] 0x802e0000
[ 3040.510000] [<800880c0>] 0x800880c0
[ 3040.510000] [<80274980>] 0x80274980
[ 3040.510000] [<80087da8>] 0x80087da8
[ 3040.510000] [<80087da8>] 0x80087da8
[ 3040.510000] [<8008c168>] 0x8008c168
[ 3040.510000] [<80064af0>] 0x80064af0
[ 3040.510000] [<8008c0e0>] 0x8008c0e0
[ 3040.510000] [<80064ae0>] 0x80064ae0
[ 3040.510000] 
[ 3040.510000] Mem-Info:
[ 3040.510000] Normal per-cpu:
[ 3040.510000] CPU    0: hi:   18, btch:   3 usd:   3
[ 3040.510000] active_anon:468 inactive_anon:484 isolated_anon:0
[ 3040.510000]  active_file:4866 inactive_file:5115 isolated_file:1
[ 3040.510000]  unevictable:0 dirty:650 writeback:0 unstable:0
[ 3040.510000]  free:96 slab_reclaimable:1035 slab_unreclaimable:1279
[ 3040.510000]  mapped:294 shmem:123 pagetables:113 bounce:0
[ 3040.510000] Normal free:384kB min:1016kB low:1268kB high:1524kB active_anon:1872kB inactive_anon:1936kB active_file:19464kB inactive_file:20460kB unevictable:0kB isolated(anon):0kB isolated(file):4kB present:65024kB mlocked:0kB dirty:2600kB writeback:0kB mapped:1176kB shmem:492kB slab_reclaimable:4140kB slab_unreclaimable:5116kB kernel_stack:536kB pagetables:452kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:1 all_unreclaimable? no
[ 3040.510000] lowmem_reserve[]: 0 0
[ 3040.510000] Normal: 0*4kB 0*8kB 0*16kB 4*32kB 4*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
[ 3040.510000] 10105 total pagecache pages
[ 3040.510000] 0 pages in swap cache
[ 3040.510000] Swap cache stats: add 0, delete 0, find 0/0
[ 3040.510000] Free swap  = 252676kB
[ 3040.510000] Total swap = 252676kB
[ 3040.510000] 16384 pages RAM
[ 3040.510000] 936 pages reserved
[ 3040.510000] 10898 pages shared
[ 3040.510000] 5225 pages non-shared
[ 3040.770000] ath: skbuff alloc of size 1926 failed
[ 3040.780000] kworker/u:1: page allocation failure: order:0, mode:0x20
[ 3040.780000] Call Trace:[<802715c8>] 0x802715c8
[ 3040.780000] [<802715c8>] 0x802715c8
[ 3040.780000] [<800b1580>] 0x800b1580
[ 3040.780000] [<800b38b0>] 0x800b38b0
...

These problems use to happen when I'm copying large files from my mac to an external hard drive attached to the router, through wifi and netatalk.
BTW I'm using netatal 2.2.4. Previously I was running 2.2.2 when the troubles began. No issues with 2.2.2 and 3.3.8 kernel though.

comment:8 follow-ups: Changed 5 years ago by florian

You should rebuild your kernel with the option Compile the kernel with symbol table information so we have a strack trace of the allocation failure.

comment:9 in reply to: ↑ 8 Changed 5 years ago by raver@…

Replying to florian:

You should rebuild your kernel with the option Compile the kernel with symbol table information so we have a strack trace of the allocation failure.

You're right, I should have done it already. I'll do it asap, today I hope.

comment:10 in reply to: ↑ 8 Changed 5 years ago by raver@…

Replying to florian:

You should rebuild your kernel with the option Compile the kernel with symbol table information so we have a strack trace of the allocation failure.

I'm using the same revision (r34639) and did the same procedure (large file copy from mac to router through wifi and netatalk).
Throughput is around 10MB/s stable. I'm using the 5GHz band.

Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] swapper: page allocation failure: order:0, mode:0x20
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] Call Trace:
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<80273788>] dump_stack+0x8/0x34
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<800b35d0>] warn_alloc_failed+0xe8/0x10c
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<800b5900>] __alloc_pages_nodemask+0x5c4/0x624
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<801e4e70>] __netdev_alloc_frag+0x54/0x12c
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<801e8640>] __netdev_alloc_skb+0x5c/0x110
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<831b40b8>] ath_rxbuf_alloc+0x30/0x98 [ath]
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<83366028>] ath_rx_tasklet+0x8e8/0xfbc [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<833647cc>] ath9k_tasklet+0xe8/0x140 [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<80079820>] tasklet_action+0x74/0xc4
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<80078fc4>] __do_softirq+0xb4/0x188
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<800791f0>] do_softirq+0x48/0x68
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<80079424>] irq_exit+0x4c/0x74
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<800630ec>] ret_from_irq+0x0/0x4
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<800632e0>] r4k_wait+0x20/0x40
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<80064db4>] cpu_idle+0x30/0x60
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] [<803068f0>] start_kernel+0x36c/0x38c
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] 
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] Mem-Info:
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] Normal per-cpu:
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] CPU    0: hi:   18, btch:   3 usd:  17
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] active_anon:884 inactive_anon:915 isolated_anon:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000]  active_file:4344 inactive_file:4487 isolated_file:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000]  unevictable:0 dirty:3 writeback:1072 unstable:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000]  free:96 slab_reclaimable:1242 slab_unreclaimable:1332
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000]  mapped:412 shmem:122 pagetables:129 bounce:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] Normal free:384kB min:1016kB low:1268kB high:1524kB active_anon:3536kB inactive_anon:3660kB active_file:17376kB inactive_file:17948kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] lowmem_reserve[]: 0 0
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] Normal: 0*4kB 0*8kB 12*16kB 4*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] 8953 total pagecache pages
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] 0 pages in swap cache
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] Swap cache stats: add 2, delete 2, find 0/0
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] Free swap  = 252668kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] Total swap = 252676kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] 16384 pages RAM
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] 978 pages reserved
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] 11912 pages shared
Dec 12 23:19:07 Netgear kern.warn kernel: [20939.940000] 6254 pages non-shared
Dec 12 23:19:07 Netgear kern.err kernel: [20940.160000] ath: skbuff alloc of size 1926 failed
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] swapper: page allocation failure: order:0, mode:0x20
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] Call Trace:
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<80273788>] dump_stack+0x8/0x34
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<800b35d0>] warn_alloc_failed+0xe8/0x10c
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<800b5900>] __alloc_pages_nodemask+0x5c4/0x624
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<801e4e70>] __netdev_alloc_frag+0x54/0x12c
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<801e8640>] __netdev_alloc_skb+0x5c/0x110
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<831b40b8>] ath_rxbuf_alloc+0x30/0x98 [ath]
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<83366028>] ath_rx_tasklet+0x8e8/0xfbc [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<833647cc>] ath9k_tasklet+0xe8/0x140 [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<80079820>] tasklet_action+0x74/0xc4
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<80078fc4>] __do_softirq+0xb4/0x188
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<800791f0>] do_softirq+0x48/0x68
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<80079424>] irq_exit+0x4c/0x74
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<800630ec>] ret_from_irq+0x0/0x4
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<800632e0>] r4k_wait+0x20/0x40
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<80064db4>] cpu_idle+0x30/0x60
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] [<803068f0>] start_kernel+0x36c/0x38c
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] 
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] Mem-Info:
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] Normal per-cpu:
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] CPU    0: hi:   18, btch:   3 usd:  17
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] active_anon:884 inactive_anon:915 isolated_anon:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000]  active_file:4344 inactive_file:4487 isolated_file:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000]  unevictable:0 dirty:3 writeback:1072 unstable:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000]  free:96 slab_reclaimable:1242 slab_unreclaimable:1332
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000]  mapped:412 shmem:122 pagetables:129 bounce:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] Normal free:384kB min:1016kB low:1268kB high:1524kB active_anon:3536kB inactive_anon:3660kB active_file:17376kB inactive_file:17948kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] lowmem_reserve[]: 0 0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] Normal: 0*4kB 0*8kB 12*16kB 4*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] 8953 total pagecache pages
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] 0 pages in swap cache
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] Swap cache stats: add 2, delete 2, find 0/0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] Free swap  = 252668kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] Total swap = 252676kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] 16384 pages RAM
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] 978 pages reserved
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] 11912 pages shared
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.160000] 6254 pages non-shared
Dec 12 23:19:07 Netgear kern.err kernel: [20940.370000] ath: skbuff alloc of size 1926 failed
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<800b5900>] __alloc_pages_nodemask+0x5c4/0x624
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<801e4e70>] __netdev_alloc_frag+0x54/0x12c
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<801e8640>] __netdev_alloc_skb+0x5c/0x110
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<831b40b8>] ath_rxbuf_alloc+0x30/0x98 [ath]
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<83366028>] ath_rx_tasklet+0x8e8/0xfbc [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<833647cc>] ath9k_tasklet+0xe8/0x140 [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<80079820>] tasklet_action+0x74/0xc4
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<80078fc4>] __do_softirq+0xb4/0x188
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<800791f0>] do_softirq+0x48/0x68
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<80079424>] irq_exit+0x4c/0x74
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<800630ec>] ret_from_irq+0x0/0x4
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<800632e0>] r4k_wait+0x20/0x40
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<80064db4>] cpu_idle+0x30/0x60
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] [<803068f0>] start_kernel+0x36c/0x38c
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] 
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] Mem-Info:
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] Normal per-cpu:
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] CPU    0: hi:   18, btch:   3 usd:  17
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] active_anon:884 inactive_anon:915 isolated_anon:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000]  active_file:4344 inactive_file:4487 isolated_file:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000]  unevictable:0 dirty:3 writeback:1072 unstable:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000]  free:96 slab_reclaimable:1242 slab_unreclaimable:1332
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000]  mapped:412 shmem:122 pagetables:129 bounce:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] Normal free:384kB min:1016kB low:1268kB high:1524kB active_anon:3536kB inactive_anon:3660kB active_file:17376kB inactive_file:17948kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] lowmem_reserve[]: 0 0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] Normal: 0*4kB 0*8kB 12*16kB 4*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] 8953 total pagecache pages
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] 0 pages in swap cache
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] Swap cache stats: add 2, delete 2, find 0/0
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] Free swap  = 252668kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] Total swap = 252676kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] 16384 pages RAM
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] 978 pages reserved
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] 11912 pages shared
Dec 12 23:19:07 Netgear kern.warn kernel: [20940.810000] 6254 pages non-shared
Dec 12 23:19:07 Netgear kern.err kernel: [20941.020000] ath: skbuff alloc of size 1926 failed
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] swapper: page allocation failure: order:0, mode:0x20
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] Call Trace:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<80273788>] dump_stack+0x8/0x34
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<800b35d0>] warn_alloc_failed+0xe8/0x10c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<800b5900>] __alloc_pages_nodemask+0x5c4/0x624
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<801e4e70>] __netdev_alloc_frag+0x54/0x12c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<801e8640>] __netdev_alloc_skb+0x5c/0x110
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<831b40b8>] ath_rxbuf_alloc+0x30/0x98 [ath]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<83366028>] ath_rx_tasklet+0x8e8/0xfbc [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<833647cc>] ath9k_tasklet+0xe8/0x140 [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<80079820>] tasklet_action+0x74/0xc4
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<80078fc4>] __do_softirq+0xb4/0x188
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<800791f0>] do_softirq+0x48/0x68
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<80079424>] irq_exit+0x4c/0x74
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<800630ec>] ret_from_irq+0x0/0x4
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<800632e0>] r4k_wait+0x20/0x40
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<80064db4>] cpu_idle+0x30/0x60
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] [<803068f0>] start_kernel+0x36c/0x38c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] 
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] Mem-Info:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] Normal per-cpu:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] CPU    0: hi:   18, btch:   3 usd:  17
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] active_anon:884 inactive_anon:915 isolated_anon:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000]  active_file:4344 inactive_file:4487 isolated_file:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000]  unevictable:0 dirty:3 writeback:1072 unstable:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000]  free:96 slab_reclaimable:1242 slab_unreclaimable:1332
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000]  mapped:412 shmem:122 pagetables:129 bounce:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] Normal free:384kB min:1016kB low:1268kB high:1524kB active_anon:3536kB inactive_anon:3660kB active_file:17376kB inactive_file:17948kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] lowmem_reserve[]: 0 0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] Normal: 0*4kB 0*8kB 12*16kB 4*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] 8953 total pagecache pages
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] 0 pages in swap cache
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] Swap cache stats: add 2, delete 2, find 0/0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] Free swap  = 252668kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] Total swap = 252676kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] 16384 pages RAM
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] 978 pages reserved
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] 11912 pages shared
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.020000] 6254 pages non-shared
Dec 12 23:19:07 Netgear kern.err kernel: [20941.240000] ath: skbuff alloc of size 1926 failed
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] swapper: page allocation failure: order:0, mode:0x20
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] Call Trace:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<80273788>] dump_stack+0x8/0x34
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<800b35d0>] warn_alloc_failed+0xe8/0x10c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<800b5900>] __alloc_pages_nodemask+0x5c4/0x624
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<801e4e70>] __netdev_alloc_frag+0x54/0x12c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<801e8640>] __netdev_alloc_skb+0x5c/0x110
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<831b40b8>] ath_rxbuf_alloc+0x30/0x98 [ath]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<83366028>] ath_rx_tasklet+0x8e8/0xfbc [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<833647cc>] ath9k_tasklet+0xe8/0x140 [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<80079820>] tasklet_action+0x74/0xc4
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<80078fc4>] __do_softirq+0xb4/0x188
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<800791f0>] do_softirq+0x48/0x68
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<80079424>] irq_exit+0x4c/0x74
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<800630ec>] ret_from_irq+0x0/0x4
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<800632e0>] r4k_wait+0x20/0x40
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<80064db4>] cpu_idle+0x30/0x60
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] [<803068f0>] start_kernel+0x36c/0x38c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] 
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] Mem-Info:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] Normal per-cpu:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] CPU    0: hi:   18, btch:   3 usd:  17
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] active_anon:884 inactive_anon:915 isolated_anon:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000]  active_file:4344 inactive_file:4487 isolated_file:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000]  unevictable:0 dirty:3 writeback:1072 unstable:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000]  free:96 slab_reclaimable:1242 slab_unreclaimable:1332
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000]  mapped:412 shmem:122 pagetables:129 bounce:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] Normal free:384kB min:1016kB low:1268kB high:1524kB active_anon:3536kB inactive_anon:3660kB active_file:17376kB inactive_file:17948kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] lowmem_reserve[]: 0 0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] Normal: 0*4kB 0*8kB 12*16kB 4*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] 8953 total pagecache pages
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] 0 pages in swap cache
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] Swap cache stats: add 2, delete 2, find 0/0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] Free swap  = 252668kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] Total swap = 252676kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] 16384 pages RAM
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] 978 pages reserved
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] 11912 pages shared
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.240000] 6254 pages non-shared
Dec 12 23:19:07 Netgear kern.err kernel: [20941.450000] ath: skbuff alloc of size 1926 failed
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] swapper: page allocation failure: order:0, mode:0x20
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] Call Trace:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<80273788>] dump_stack+0x8/0x34
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<800b35d0>] warn_alloc_failed+0xe8/0x10c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<800b5900>] __alloc_pages_nodemask+0x5c4/0x624
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<801e4e70>] __netdev_alloc_frag+0x54/0x12c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<801e8640>] __netdev_alloc_skb+0x5c/0x110
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<831b40b8>] ath_rxbuf_alloc+0x30/0x98 [ath]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<83366028>] ath_rx_tasklet+0x8e8/0xfbc [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<833647cc>] ath9k_tasklet+0xe8/0x140 [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<80079820>] tasklet_action+0x74/0xc4
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<80078fc4>] __do_softirq+0xb4/0x188
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<800791f0>] do_softirq+0x48/0x68
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<80079424>] irq_exit+0x4c/0x74
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<800630ec>] ret_from_irq+0x0/0x4
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<800632e0>] r4k_wait+0x20/0x40
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<80064db4>] cpu_idle+0x30/0x60
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] [<803068f0>] start_kernel+0x36c/0x38c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] 
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] Mem-Info:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] Normal per-cpu:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] CPU    0: hi:   18, btch:   3 usd:  17
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] active_anon:884 inactive_anon:915 isolated_anon:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000]  active_file:4344 inactive_file:4487 isolated_file:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000]  unevictable:0 dirty:3 writeback:1072 unstable:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000]  free:96 slab_reclaimable:1242 slab_unreclaimable:1332
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000]  mapped:412 shmem:122 pagetables:129 bounce:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] Normal free:384kB min:1016kB low:1268kB high:1524kB active_anon:3536kB inactive_anon:3660kB active_file:17376kB inactive_file:17948kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] lowmem_reserve[]: 0 0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] Normal: 0*4kB 0*8kB 12*16kB 4*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] 8953 total pagecache pages
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] 0 pages in swap cache
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] Swap cache stats: add 2, delete 2, find 0/0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] Free swap  = 252668kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] Total swap = 252676kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] 16384 pages RAM
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] 978 pages reserved
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] 11912 pages shared
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.460000] 6254 pages non-shared
Dec 12 23:19:07 Netgear kern.err kernel: [20941.670000] ath: skbuff alloc of size 1926 failed
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] swapper: page allocation failure: order:0, mode:0x20
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] Call Trace:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<80273788>] dump_stack+0x8/0x34
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<800b35d0>] warn_alloc_failed+0xe8/0x10c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<800b5900>] __alloc_pages_nodemask+0x5c4/0x624
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<801e4e70>] __netdev_alloc_frag+0x54/0x12c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<801e8640>] __netdev_alloc_skb+0x5c/0x110
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<831b40b8>] ath_rxbuf_alloc+0x30/0x98 [ath]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<83366028>] ath_rx_tasklet+0x8e8/0xfbc [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<833647cc>] ath9k_tasklet+0xe8/0x140 [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<80079820>] tasklet_action+0x74/0xc4
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<80078fc4>] __do_softirq+0xb4/0x188
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<800791f0>] do_softirq+0x48/0x68
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<80079424>] irq_exit+0x4c/0x74
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<800630ec>] ret_from_irq+0x0/0x4
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<800632e0>] r4k_wait+0x20/0x40
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<80064db4>] cpu_idle+0x30/0x60
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] [<803068f0>] start_kernel+0x36c/0x38c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] 
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] Mem-Info:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] Normal per-cpu:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] CPU    0: hi:   18, btch:   3 usd:  17
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] active_anon:884 inactive_anon:915 isolated_anon:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000]  active_file:4344 inactive_file:4487 isolated_file:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000]  unevictable:0 dirty:3 writeback:1072 unstable:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000]  free:96 slab_reclaimable:1242 slab_unreclaimable:1332
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000]  mapped:412 shmem:122 pagetables:129 bounce:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] Normal free:384kB min:1016kB low:1268kB high:1524kB active_anon:3536kB inactive_anon:3660kB active_file:17376kB inactive_file:17948kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] lowmem_reserve[]: 0 0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] Normal: 0*4kB 0*8kB 12*16kB 4*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] 8953 total pagecache pages
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] 0 pages in swap cache
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] Swap cache stats: add 2, delete 2, find 0/0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] Free swap  = 252668kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] Total swap = 252676kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] 16384 pages RAM
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] 978 pages reserved
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] 11912 pages shared
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.670000] 6254 pages non-shared
Dec 12 23:19:07 Netgear kern.err kernel: [20941.880000] ath: skbuff alloc of size 1926 failed
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] swapper: page allocation failure: order:0, mode:0x20
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] Call Trace:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<80273788>] dump_stack+0x8/0x34
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<800b35d0>] warn_alloc_failed+0xe8/0x10c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<800b5900>] __alloc_pages_nodemask+0x5c4/0x624
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<801e4e70>] __netdev_alloc_frag+0x54/0x12c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<801e8640>] __netdev_alloc_skb+0x5c/0x110
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<831b40b8>] ath_rxbuf_alloc+0x30/0x98 [ath]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<83366028>] ath_rx_tasklet+0x8e8/0xfbc [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<833647cc>] ath9k_tasklet+0xe8/0x140 [ath9k]
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<80079820>] tasklet_action+0x74/0xc4
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<80078fc4>] __do_softirq+0xb4/0x188
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<800791f0>] do_softirq+0x48/0x68
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<80079424>] irq_exit+0x4c/0x74
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<800630ec>] ret_from_irq+0x0/0x4
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<800632e0>] r4k_wait+0x20/0x40
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<80064db4>] cpu_idle+0x30/0x60
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] [<803068f0>] start_kernel+0x36c/0x38c
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] 
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] Mem-Info:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] Normal per-cpu:
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] CPU    0: hi:   18, btch:   3 usd:  17
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] active_anon:884 inactive_anon:915 isolated_anon:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000]  active_file:4344 inactive_file:4487 isolated_file:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000]  unevictable:0 dirty:3 writeback:1072 unstable:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000]  free:96 slab_reclaimable:1242 slab_unreclaimable:1332
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000]  mapped:412 shmem:122 pagetables:129 bounce:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] Normal free:384kB min:1016kB low:1268kB high:1524kB active_anon:3536kB inactive_anon:3660kB active_file:17376kB inactive_file:17948kB unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] lowmem_reserve[]: 0 0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] Normal: 0*4kB 0*8kB 12*16kB 4*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 384kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] 8953 total pagecache pages
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] 0 pages in swap cache
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] Swap cache stats: add 2, delete 2, find 0/0
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] Free swap  = 252668kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] Total swap = 252676kB
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] 16384 pages RAM
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] 978 pages reserved
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] 11912 pages shared
Dec 12 23:19:07 Netgear kern.warn kernel: [20941.890000] 6254 pages non-shared
Dec 12 23:19:07 Netgear kern.err kernel: [20942.100000] ath: skbuff alloc of size 1926 failed
Dec 12 23:19:07 Netgear kern.err kernel: [20942.100000] ath: skbuff alloc of size 1926 failed
Dec 12 23:19:07 Netgear kern.err kernel: [20942.110000] ath: skbuff alloc of size 1926 failed
Dec 12 23:19:07 Netgear kern.err kernel: [20942.110000] ath: skbuff alloc of size 1926 failed
Dec 12 23:19:07 Netgear kern.err kernel: [20942.120000] ath: skbuff alloc of size 1926 failed
...

comment:11 Changed 5 years ago by raver@…

I'm not experiencing these errors for some time.
My latest build is trunk r35050 / 3.7.1 kernel, built with gcc-linaro 4.7.3 2012.12 and binutils 2.23.1.
However I can not be sure if the problem has been definitively solved.

comment:12 follow-up: Changed 5 years ago by anonymous

Nice that you do regular testing.
I really wonder that it appears and disappears with changing kernel versions?!
(By the way, have you also gone through 3.6.11?)

comment:13 in reply to: ↑ 12 Changed 5 years ago by raver@…

Replying to anonymous:

(By the way, have you also gone through 3.6.11?)

Yes i did test some builds with 3.6.11 (gcc-linaro 4.6.x, binutils 2.22) and I did have trouble with some early ones. The most recent ones (latest was r35025) were ok but I test them for a short time.

comment:14 Changed 5 years ago by raver@…

It has been quite fine lately, without crashes while doing heavy file transfers over wifi. My latest build is trunk r35251 and seems rock stable.
I think it's ok to close the ticket.
Here's how swap space is being used.

root@Netgear:~# free
             total         used         free       shared      buffers
Mem:         61544        58876         2668            0         4936
-/+ buffers:              53940         7604
Swap:       252676         3640       249036

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