Hi, Thomas and all
I have setup the secured mesh (after patching to allow hw crypto in mesh)
as follow (not multihop case testing, 1 hop scenario):
Mesh Node (Mesh Gateway) <----------> Mesh Node A
<----------> Mesh Node B
Both of the Mesh Node A and B are directly linked to Mesh Gateway. When
Mesh Node A generates the TCP stream towards Mesh Gateway and later on Mesh
Node B generates the TCP stream towards Mesh Gateway as well, the Mesh Node
B seems fail to push the throughput towards Mesh Gateway. The following
errors happen on Mesh Node B:
# iperf -c 10.44.29.245 -i 1 -t 100 -p 5002
------------------------------------------------------------
Client connecting to 10.44.29.245, TCP port 5002
TCP window size: 16.0 KByte (default)
------------------------------------------------------------
[ 3] local 10.44.29.154 port 50127 connected with 10.44.29.245 port 5002
<7>ath: tx queue 2 (3069858), link a30697f4
<7>ath: TX complete: skb: 83a043b0
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 3.25 MBytes 27.3 Mbits/sec
<7>ath: transmitting packet, skb: 83a04cb0
[ 3] 1.0- 2.0 sec 3.25 MBytes 27.3 Mbits/sec
<7>ath: TX complete: skb: 822d6230
[ 3] 2.0- 3.0 sec 3.50 MBytes 29.4 Mbits/sec
<7>ath: tx queue 2 (30660e0), link a306c1c0
<7>ath: link[2] (a30637dc)=30626ac (a30626ac)
[ 3] 3.0- 4.0 sec 3.38 MBytes 28.3 Mbits/sec
kworker/u:2: page allocation failure. order:0, mode:0x20
Call Trace:
[<802599d4>] dump_stack+0x8/0x34
[<800b0074>] __alloc_pages_nodemask+0x628/0x698
[<800d21b8>] new_slab+0x8c/0x21c
[<800d2d04>] __slab_alloc.clone.69.clone.74+0x120/0x1ac
[<800d2dd4>] kmem_cache_alloc+0x44/0xa8
[<830aa6f8>] ieee80211_mesh_init_sdata+0x774/0x8e4 [mac80211]
Mem-Info:
Normal per-cpu:
CPU 0: hi: 18, btch: 3 usd: 2
active_anon:404 inactive_anon:14 isolated_anon:0
active_file:187 inactive_file:362 isolated_file:0
unevictable:0 dirty:0 writeback:0 unstable:0
free:96 slab_reclaimable:152 slab_unreclaimable:13253
mapped:251 shmem:25 pagetables:58 bounce:0
Normal free:384kB min:1016kB low:1268kB high:1524kB active_anon:1616kB
inactive_anon:56kB active_file:748kB inactive_file:1448kB unevictable:0kB
isolated(anon):0kB isolated(file):0kB present:65024kB mlocked:0kB dirty:0kB
writeback:0kB mapped:1004kB shmem:100kB slab_reclaimable:608kB
slab_unreclaimable:53012kB kernel_stack:344kB pagetables:232kB unstable:0kB
bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0
Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 1*128kB 1*256kB 0*512kB 0*1024kB
0*2048kB 0*4096kB = 384kB
574 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 RAM
919 pages reserved
1155 pages shared
14896 pages non-shared
SLUB: Unable to allocate memory on node -1 (gfp=0x20)
cache: kmalloc-128, object size: 128, buffer size: 128, default order: 0,
min order: 0
node 0: slabs: 0, objs: 0, free: 0
kworker/u:2: page allocation failure. order:0, mode:0x20
Call Trace:
[<802599d4>] dump_stack+0x8/0x34
[<800b0074>] __alloc_pages_nodemask+0x628/0x698
[<800d21b8>] new_slab+0x8c/0x21c
[<800d2d04>] __slab_alloc.clone.69.clone.74+0x120/0x1ac
[<800d2dd4>] kmem_cache_alloc+0x44/0xa8
[<830aa6f8>] ieee80211_mesh_init_sdata+0x774/0x8e4 [mac80211
Do you all have any ideas?
Regards,
Chun-Yeow
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