Dear developers,
My machine is ARM:
root@gms:~# uname -a
Linux gms 2.6.39-rc3 #71 PREEMPT Tue Apr 12 14:04:49 MSD 2011 armv5tejl
unknown
This machine have 64MB RAM and no processes which eat too much memory:
root@gms:~# ps
PID USER VSZ STAT COMMAND
1 root 1624 S init [5]
2 root 0 SW [kthreadd]
3 root 0 SW [ksoftirqd/0]
4 root 0 SW [kworker/0:0]
5 root 0 SW [kworker/u:0]
6 root 0 SW< [khelper]
7 root 0 DW [kworker/u:1]
10 root 0 SW< [netns]
134 root 0 SW [sync_supers]
136 root 0 SW [bdi-default]
138 root 0 SW< [kblockd]
144 root 0 SW< [ata_sff]
155 root 0 SW [khubd]
171 root 0 SW< [cfg80211]
254 root 0 SW< [rpciod]
260 root 0 DW [kswapd0]
261 root 0 SW [fsnotify_mark]
262 root 0 SW< [nfsiod]
263 root 0 SW< [crypto]
849 root 0 SW [mtdblock0]
854 root 0 SW [mtdblock1]
859 root 0 SW [mtdblock2]
864 root 0 SW [mtdblock3]
869 root 0 SW [mtdblock4]
874 root 0 SW [mtdblock5]
879 root 0 SW [mtdblock6]
884 root 0 SW [mtdblock7]
889 root 0 SW [mtdblock8]
930 root 0 SW [w1_bus_master1]
948 root 0 DW [kworker/u:2]
977 root 0 SW [scsi_eh_0]
978 root 0 SW [usb-storage]
997 root 1988 S < /sbin/udevd -d
1511 root 0 SW [flush-mtd-unmap]
1528 root 0 SWN [jffs2_gcd_mtd7]
1581 root 0 SWN [jffs2_gcd_mtd8]
1659 root 1984 S < /sbin/udevd -d
1661 root 1984 S < /sbin/udevd -d
1663 root 0 SW [kworker/0:2]
1666 root 3628 S /usr/sbin/wpa_supplicant -B -P
/var/run/wpa_supplican
1732 root 0 SW [kworker/u:3]
1776 root 1860 S dhcpcd wlan1
1806 messageb 3328 S /usr/bin/dbus-daemon --system
1816 root 4168 S /usr/sbin/sshd
1821 root 1800 S /usr/sbin/cron
1827 root 1676 S /usr/sbin/ifplugd -i eth0 -fwI -u0 -d10
1831 root 3444 S /usr/bin/ntpd -p /var/run/ntp.pid -g
1836 root 5320 S /usr/sbin/syslog-ng --process-mode background
--pidfi
1842 root 2376 S login -- root
1843 root 3056 S -sh
1847 root 2876 D dd if /dev/zero of /media/net/testfile
1848 root 0 SW [flush-0:17]
1849 root 4296 R sshd: root@pts/0
1853 root 3056 S -sh
1869 root 3056 R ps
The USB Wi-Fi adapter is "Qcom LR802UKN3" based on the RT3070 chipset.
I use NFS share to transmit a lot of data through Wi-FI for testing:
root@gms:~# mount -t nfs -o nolock,tcp
192.168.1.10:/home/plyatov/development/nfs /media/net
root@gms:~# dd if=/dev/zero of=/media/net/testfile
Then similar errors appeared after some time (~hour):
kworker/u:1: page allocation failure. order:1, mode:0x20
Backtrace:
[<c002a720>] (dump_backtrace+0x0/0x10c) from [<c033fcc0>]
(dump_stack+0x18/0x1c)
r7:c3830000 r6:00000030 r5:00000020 r4:00000000
[<c033fca8>] (dump_stack+0x0/0x1c) from [<c007b33c>]
(__alloc_pages_nodemask+0x58c/0x5f0)
[<c007adb0>] (__alloc_pages_nodemask+0x0/0x5f0) from [<c00a09c0>]
(cache_alloc_refill+0x2e4/0x5e0)
[<c00a06dc>] (cache_alloc_refill+0x0/0x5e0) from [<c00a0d50>]
(__kmalloc+0x94/0xd4)
[<c00a0cbc>] (__kmalloc+0x0/0xd4) from [<c0278348>] (__alloc_skb+0x54/0xec)
r7:00000020 r6:00000f60 r5:c33e6aa0 r4:c380dce0
[<c02782f4>] (__alloc_skb+0x0/0xec) from [<c0279470>]
(dev_alloc_skb+0x20/0x44)
r8:c30d9050 r7:c3852da0 r6:00000f14 r5:c3831f18 r4:0000000c
[<c0279450>] (dev_alloc_skb+0x0/0x44) from [<c0226698>]
(rt2x00queue_alloc_rxskb+0x4c/0xc4)
[<c022664c>] (rt2x00queue_alloc_rxskb+0x0/0xc4) from [<c0223480>]
(rt2x00lib_rxdone+0x44/0x298)
r8:c39d8600 r7:c3852da0 r6:c30d9050 r5:c3831f18 r4:c3852da0
[<c022343c>] (rt2x00lib_rxdone+0x0/0x298) from [<c0227eb8>]
(rt2x00usb_work_rxdone+0x54/0x74)
[<c0227e64>] (rt2x00usb_work_rxdone+0x0/0x74) from [<c004c910>]
(process_one_work+0x27c/0x3f8)
r5:c3826c60 r4:c38530bc
[<c004c694>] (process_one_work+0x0/0x3f8) from [<c004d148>]
(worker_thread+0x244/0x480)
[<c004cf04>] (worker_thread+0x0/0x480) from [<c00532e4>] (kthread+0x88/0x90)
[<c005325c>] (kthread+0x0/0x90) from [<c003bdac>] (do_exit+0x0/0x6dc)
r7:00000013 r6:c003bdac r5:c005325c r4:c382bee0
Mem-info:
Normal per-cpu:
CPU 0: hi: 18, btch: 3 usd: 16
active_anon:719 inactive_anon:8 isolated_anon:0
active_file:6090 inactive_file:6132 isolated_file:0
unevictable:0 dirty:0 writeback:784 unstable:1439
free:431 slab_reclaimable:288 slab_unreclaimable:1120
mapped:167 shmem:54 pagetables:66 bounce:0
Normal free:1724kB min:1016kB low:1268kB high:1524kB active_anon:2876kB
inactive_anon:32kB active_file:24360kB inactive_file:24528kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB
mlocked:0kB dirty:0kB writeback:3136kB mapped:668kB shmem:216kB
slab_reclaimable:1152kB slab_unreclaimable:4480kB kernel_stack:432kB
pagetables:264kB unstable:5756kB bounce:0kB writeback_tmp:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0
Normal: 403*4kB 2*8kB 2*16kB 2*32kB 0*64kB 0*128kB 0*256kB 0*512kB
0*1024kB 0*2048kB 0*4096kB = 1724kB
12276 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
16384 pages of RAM
552 free pages
1218 reserved pages
1408 slab pages
3841 pages shared
0 pages swap cached
kworker/u:1: page allocation failure. order:1, mode:0x20
Backtrace:
[<c002a720>] (dump_backtrace+0x0/0x10c) from [<c033fcc0>]
(dump_stack+0x18/0x1c)
r7:c3830000 r6:00000030 r5:00000020 r4:00000000
[<c033fca8>] (dump_stack+0x0/0x1c) from [<c007b33c>]
(__alloc_pages_nodemask+0x58c/0x5f0)
[<c007adb0>] (__alloc_pages_nodemask+0x0/0x5f0) from [<c00a09c0>]
(cache_alloc_refill+0x2e4/0x5e0)
[<c00a06dc>] (cache_alloc_refill+0x0/0x5e0) from [<c00a0d50>]
(__kmalloc+0x94/0xd4)
[<c00a0cbc>] (__kmalloc+0x0/0xd4) from [<c0278348>] (__alloc_skb+0x54/0xec)
r7:00000020 r6:00000f60 r5:c33e6aa0 r4:c380dce0
[<c02782f4>] (__alloc_skb+0x0/0xec) from [<c0279470>]
(dev_alloc_skb+0x20/0x44)
r8:c30d9064 r7:c3852da0 r6:00000f14 r5:c3831f18 r4:0000000c
[<c0279450>] (dev_alloc_skb+0x0/0x44) from [<c0226698>]
(rt2x00queue_alloc_rxskb+0x4c/0xc4)
[<c022664c>] (rt2x00queue_alloc_rxskb+0x0/0xc4) from [<c0223480>]
(rt2x00lib_rxdone+0x44/0x298)
r8:c39d8600 r7:c3852da0 r6:c30d9064 r5:c3831f18 r4:c3852da0
[<c022343c>] (rt2x00lib_rxdone+0x0/0x298) from [<c0227eb8>]
(rt2x00usb_work_rxdone+0x54/0x74)
[<c0227e64>] (rt2x00usb_work_rxdone+0x0/0x74) from [<c004c910>]
(process_one_work+0x27c/0x3f8)
r5:c3826c60 r4:c38530bc
[<c004c694>] (process_one_work+0x0/0x3f8) from [<c004d148>]
(worker_thread+0x244/0x480)
[<c004cf04>] (worker_thread+0x0/0x480) from [<c00532e4>] (kthread+0x88/0x90)
[<c005325c>] (kthread+0x0/0x90) from [<c003bdac>] (do_exit+0x0/0x6dc)
r7:00000013 r6:c003bdac r5:c005325c r4:c382bee0
Mem-info:
Normal per-cpu:
CPU 0: hi: 18, btch: 3 usd: 1
active_anon:719 inactive_anon:8 isolated_anon:0
active_file:6080 inactive_file:6109 isolated_file:33
unevictable:0 dirty:0 writeback:784 unstable:1439
free:419 slab_reclaimable:288 slab_unreclaimable:1122
mapped:167 shmem:54 pagetables:66 bounce:0
Normal free:1676kB min:1016kB low:1268kB high:1524kB active_anon:2876kB
inactive_anon:32kB active_file:24320kB inactive_file:24436kB
unevictable:0kB isolated(anon):0kB isolated(file):132kB present:65024kB
mlocked:0kB dirty:0kB writeback:3136kB mapped:668kB shmem:216kB
slab_reclaimable:1152kB slab_unreclaimable:4488kB kernel_stack:432kB
pagetables:264kB unstable:5756kB bounce:0kB writeback_tmp:0kB
pages_scanned:33 all_unreclaimable? no
lowmem_reserve[]: 0 0
Normal: 391*4kB 2*8kB 2*16kB 2*32kB 0*64kB 0*128kB 0*256kB 0*512kB
0*1024kB 0*2048kB 0*4096kB = 1676kB
12278 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
16384 pages of RAM
528 free pages
1218 reserved pages
1410 slab pages
3877 pages shared
0 pages swap cached
kworker/u:0: page allocation failure. order:1, mode:0x20
Backtrace:
[<c002a720>] (dump_backtrace+0x0/0x10c) from [<c033fcc0>]
(dump_stack+0x18/0x1c)
r7:c382a000 r6:00000030 r5:00000020 r4:00000000
[<c033fca8>] (dump_stack+0x0/0x1c) from [<c007b33c>]
(__alloc_pages_nodemask+0x58c/0x5f0)
[<c007adb0>] (__alloc_pages_nodemask+0x0/0x5f0) from [<c00a09c0>]
(cache_alloc_refill+0x2e4/0x5e0)
[<c00a06dc>] (cache_alloc_refill+0x0/0x5e0) from [<c00a0d50>]
(__kmalloc+0x94/0xd4)
[<c00a0cbc>] (__kmalloc+0x0/0xd4) from [<c0278348>] (__alloc_skb+0x54/0xec)
r7:00000020 r6:00000f60 r5:c33e6780 r4:c380dce0
[<c02782f4>] (__alloc_skb+0x0/0xec) from [<c0279470>]
(dev_alloc_skb+0x20/0x44)
r8:c30d9320 r7:c3852da0 r6:00000f14 r5:c382bf18 r4:0000000c
[<c0279450>] (dev_alloc_skb+0x0/0x44) from [<c0226698>]
(rt2x00queue_alloc_rxskb+0x4c/0xc4)
[<c022664c>] (rt2x00queue_alloc_rxskb+0x0/0xc4) from [<c0223480>]
(rt2x00lib_rxdone+0x44/0x298)
r8:c39d8600 r7:c3852da0 r6:c30d9320 r5:c382bf18 r4:c3852da0
[<c022343c>] (rt2x00lib_rxdone+0x0/0x298) from [<c0227eb8>]
(rt2x00usb_work_rxdone+0x54/0x74)
[<c0227e64>] (rt2x00usb_work_rxdone+0x0/0x74) from [<c004c910>]
(process_one_work+0x27c/0x3f8)
r5:c3826fa0 r4:c38530bc
[<c004c694>] (process_one_work+0x0/0x3f8) from [<c004d148>]
(worker_thread+0x244/0x480)
[<c004cf04>] (worker_thread+0x0/0x480) from [<c00532e4>] (kthread+0x88/0x90)
[<c005325c>] (kthread+0x0/0x90) from [<c003bdac>] (do_exit+0x0/0x6dc)
r7:00000013 r6:c003bdac r5:c005325c r4:c381df00
Mem-info:
Normal per-cpu:
CPU 0: hi: 18, btch: 3 usd: 15
active_anon:720 inactive_anon:9 isolated_anon:0
active_file:6112 inactive_file:6131 isolated_file:0
unevictable:0 dirty:0 writeback:784 unstable:1439
free:407 slab_reclaimable:288 slab_unreclaimable:1122
mapped:158 shmem:56 pagetables:66 bounce:0
Normal free:1628kB min:1016kB low:1268kB high:1524kB active_anon:2880kB
inactive_anon:36kB active_file:24448kB inactive_file:24524kB
unevictable:0kB isolated(anon):0kB isolated(file):0kB present:65024kB
mlocked:0kB dirty:0kB writeback:3136kB mapped:632kB shmem:224kB
slab_reclaimable:1152kB slab_unreclaimable:4488kB kernel_stack:432kB
pagetables:264kB unstable:5756kB bounce:0kB writeback_tmp:0kB
pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0
Normal: 379*4kB 2*8kB 2*16kB 2*32kB 0*64kB 0*128kB 0*256kB 0*512kB
0*1024kB 0*2048kB 0*4096kB = 1628kB
12299 total pagecache pages
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap = 0kB
Total swap = 0kB
16384 pages of RAM
527 free pages
1218 reserved pages
1410 slab pages
3796 pages shared
0 pages swap cached
This problem tested with WEP security in 802.11bg mode with "Zyxel
P660HTW2" AP and 802.11bgn mode with "TP-Link TL-WR1043ND" AP.
Does somebody can fix this, or recommend how to fix?
Best regards!
--
Igor Plyatov
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