#18105: [Buffalo WBMR-HP-G300H] dsl_cpe_control: page allocation failures
----------------------+-----------------------------------
Reporter: drsound | Owner: developers
Type: defect | Status: new
Priority: normal | Milestone:
Component: packages | Version: Barrier Breaker 14.07
Keywords: |
----------------------+-----------------------------------
Running OpenWrt Barrier Breaker 14.07 on a Buffalo WBMR-HP-G300H. I get
several DSL disconnections a day due to dsl_cpe_control page allocation
failures. I have this problem with vanilla OpenWRT (no extra memory hungry
services installed). I got it with OpenWRT 12.09 too.
I'm using Annex A modem firmware:
* kmod-ltq-adsl-ar9 - 3.10.49+3.24.4.4-1
* kmod-ltq-adsl-ar9-fw-a - 0.1-1
* kmod-ltq-adsl-ar9-mei - 3.10.49-1
* ltq-adsl-app - 3.24.4.4-2
{{{
[278624.724000] leave showtime
[278624.724000] dsl_cpe_control: page allocation failure: order:4,
mode:0x2000d0
[278624.732000] CPU: 0 PID: 21114 Comm: dsl_cpe_control Not tainted
3.10.49 #5
[278624.736000] Stack : 00000000 00000000 00000000 00000000 8044c50e
0000003e 83822e70 002000d0
[278624.736000] 8037e690 803dd273 0000527a 80443960 83822e70
002000d0 803d5098 8184bbd8
[278624.736000] 0000003f 802de3b0 00000000 801f64c0 00000000
00000000 8037fd50 8184bb2c
[278624.736000] 00000000 00000000 00000000 00000000 00000000
00000000 00000000 00000000
[278624.736000] 00000000 00000000 00000000 00000000 00000000
00000000 00000000 8184bab8
[278624.736000] ...
[278624.772000] Call Trace:
[278624.776000] [<802455b0>] show_stack+0x48/0x70
[278624.780000] [<80301500>] warn_alloc_failed+0x104/0x128
[278624.784000] [<8002a2c4>] __alloc_pages_nodemask+0x3d0/0x680
[278624.792000] [<800985e8>] cache_alloc_refill+0x2d8/0x83c
[278624.796000] [<80048010>] __kmalloc+0x90/0x120
[278624.800000] [<83260dec>] DSL_BSP_FWDownload+0x148/0xab8 [ltq_mei_ar9]
[278624.808000] [<831b01ec>] DSL_DRV_DEV_FwDownload+0x104/0x288
[drv_dsl_cpe_api]
[278624.812000] [<831a30a8>] DSL_DRV_AutobootLoadFirmware+0x264/0x350
[drv_dsl_cpe_api]
[278624.820000] [<831a05b8>] DSL_DRV_IoctlHandleHelperCall+0xfc/0x184
[drv_dsl_cpe_api]
[278624.828000] [<831a2dc0>] DSL_DRV_IoctlHandle+0x56c/0x5f0
[drv_dsl_cpe_api]
[278624.836000] [<831a47b0>] DSL_DRV_ErrorToOS+0x11c/0x14c
[drv_dsl_cpe_api]
[278624.844000]
[278624.844000] Mem-Info:
[278624.848000] Normal per-cpu:
[278624.848000] CPU 0: hi: 18, btch: 3 usd: 0
[278624.856000] active_anon:1286 inactive_anon:1472 isolated_anon:0
[278624.856000] active_file:1858 inactive_file:4224 isolated_file:0
[278624.856000] unevictable:0 dirty:0 writeback:0 unstable:0
[278624.856000] free:989 slab_reclaimable:516 slab_unreclaimable:2062
[278624.856000] mapped:530 shmem:132 pagetables:74 bounce:0
[278624.856000] free_cma:0
[278624.888000] Normal free:3956kB min:980kB low:1224kB high:1468kB
active_anon:5144kB inactive_anon:5888kB active_file:7432kB
inactive_file:16896kB unevictable:0kB isolated(anon):0kB
isolated(file):0kB present:65536kB managed:60500kB mlocked:0kB dirty:0kB
writeback:0kB mapped:2120kB shmem:528kB slab_reclaimable:2064kB
slab_unreclaimable:8248kB kernel_stack:408kB pagetables:296kB unstable:0kB
bounce:0kB free_cma:0kB writeback_tmp:0kB pages_scanned:0
all_unreclaimable? no
[278624.928000] lowmem_reserve[]: 0 0
[278624.932000] Normal: 137*4kB (UEM) 130*8kB (UEM) 60*16kB (UEM) 44*32kB
(M) 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 3956kB
[278624.944000] 6403 total pagecache pages
[278624.948000] 189 pages in swap cache
[278624.952000] Swap cache stats: add 22975, delete 22786, find
47203/48711
[278624.956000] Free swap = 530492kB
[278624.960000] Total swap = 532692kB
[278624.968000] 16384 pages RAM
[278624.968000] 1214 pages reserved
[278624.972000] 266157 pages shared
[278624.976000] 11833 pages non-shared
[278624.980000] SLAB: Unable to allocate memory on node 0 (gfp=0xd0)
[278624.984000] cache: kmalloc-65536, object size: 65536, order: 4
[278624.992000] node 0: slabs: 25/25, objs: 25/25, free: 0
[278624.996000] [IFX_MEI_DFEMemoryAlloc 1519]: 4: kmalloc 65536 bytes
memory fail!
[278625.004000] [DSL_BSP_FWDownload 1639]: Error: No memory space left.
}}}
--
Ticket URL: <https://dev.openwrt.org/ticket/18105>
OpenWrt <http://openwrt.org>
Opensource Wireless Router Technology
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