Dear Friends

Please help

I've compiled switchfin for ip04 with default config, following all instructions and it built fine and well with no errors. However, after few hours work, it often crashed and print message:

asterisk: page allocation failure. order:6, mode:0xd0
Stack info:
SP: [0x0217fdac] гд
Memory from 0x0217fda0 to 02180000
0217fda0: 000000d0  0217fdac  00000000 [00000000] 00035492  00c25700  00000000  000000d0
0217fdc0: 00c258e0  00000006  000000d0  00000001  00000040  0021c56c  00000000  0217e008
0217fde0: 00000010  00000050  00000040  0217e000  0217e000  0124d360  000200d0  0021cf9c
0217fe00: 00000040  00000007  00c25700  00000007  00000040  00000010  00000000  0021c56c
0217fe20: 00000000  00000000  00000000  0021c56c  023bf23c  0003d350  00029000  026a2508
0217fe40: 026a2508  00000006  00000073  00000000  04000021  0217fe6c  00a6c7d8  00000010
0217fe60: 00000000  021790f4  04000021  023bf23c  0003d6aa  00000000  026a2508  00000000
0217fe80: 00000003  00000073  00000000  04000021  024336e0  00000035  00029000  00000004
0217fea0: 04000021  00000000  0217feb0  0004d082  00000004  02179070  0003da3c  00000000
0217fec0: 00029000  00455250  0217e000  00000000  04000021  00000003  00000000  01275900
0217fee0: 00029000  00000003  04000021  00000000  ffa008aa  0003d9f8  000000c0  00000000
0217ff00: ffffe000  00000000  00000000  ffffe000  0266c004  0000fffe  04000021  00000000
0217ff20: 00000000  0114d2c8  00008000  00000000  00000000  02180000  0114d2c8  0114d2c8
0217ff40: 0116c02e  ffa00e30  02003065  0115bb07  0044b3b7  0115bb06  0044b3b6  00000000
0217ff60: 00000000  00000000  00000000  00000000  00000000  00000000  7ffff000  000000c0
0217ff80: 00000137  00000000  00000000  00000000  00000000  0000005b  00001802  00000001
0217ffa0: 00a6374c  00000006  00000003  00000001  00000000  02179064  02179070  00455250
0217ffc0: 0168e8e8  00455250  00000000  016b7718  000000c0  00000000  00454b9c  00000000
0217ffe0: 00000000  04000021  00000003  00029000  00000000  00000000  000000c0  00000006
Return addresses in stack:
Mem-Info:
DMA per-cpu:
CPU    0: hi:    0, btch:   1 usd:   0
active_anon:0 inactive_anon:0 isolated_anon:0
active_file:9 inactive_file:0 isolated_file:0
unevictable:10 dirty:0 writeback:0 unstable:0
free:5366 slab_reclaimable:83 slab_unreclaimable:309
mapped:0 shmem:0 pagetables:0 bounce:0
DMA free:21464kB min:836kB low:1044kB high:1252kB active_anon:0kB inactive_anon:0kB active_file:36kB inactive_file:0kB unevictable:40kB isolated(anon):0kB isolated(file):0kB present:43688kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:332kB slab_unreclaimable:1236kB kernel_stack:472kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 239*4kB 148*8kB 145*16kB 89*32kB 73*64kB 72*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB 0*8192kB 0*16384kB 0*32768kB = 21452kB
19 total pagecache pages
11008 pages RAM
686 pages reserved
9 pages shared
4891 pages non-shared
Allocation of length 167936 from process 1786 (asterisk) failed
DMA per-cpu:
CPU    0: hi:    0, btch:   1 usd:   0
active_anon:0 inactive_anon:0 isolated_anon:0
active_file:9 inactive_file:0 isolated_file:0
unevictable:10 dirty:0 writeback:0 unstable:0
free:5362 slab_reclaimable:83 slab_unreclaimable:313
mapped:0 shmem:0 pagetables:0 bounce:0
DMA free:21444kB min:836kB low:1044kB high:1252kB active_anon:0kB inactive_anon:0kB active_file:36kB inactive_file:0kB unevictable:40kB isolated(anon):0kB isolated(file):0kB present:43688kB mlocked:0kB dirty:0kB writeback:0kB mapped:0kB shmem:0kB slab_reclaimable:332kB slab_unreclaimable:1256kB kernel_stack:472kB pagetables:0kB unstable:0kB bounce:0kB writeback_tmp:0kB pages_scanned:0 all_unreclaimable? no
lowmem_reserve[]: 0 0 0
DMA: 236*4kB 148*8kB 145*16kB 89*32kB 73*64kB 72*128kB 1*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB 0*8192kB 0*16384kB 0*32768kB = 21440kB
19 total pagecache pages



The problem was noticed with different application: asterisk, ssmtp and other.

root@ip0x:~> cat /proc/meminfo
MemTotal:          41288 kB
MemFree:           22128 kB
Buffers:              40 kB
Cached:              448 kB
SwapCached:            0 kB
Active:               64 kB
Inactive:            140 kB
Active(anon):          0 kB
Inactive(anon):        0 kB
Active(file):         64 kB
Inactive(file):      140 kB
Unevictable:         284 kB
Mlocked:               0 kB
MmapCopy:          15232 kB
SwapTotal:             0 kB
SwapFree:              0 kB
Dirty:                 0 kB
Writeback:             0 kB
AnonPages:             0 kB
Mapped:                0 kB
Shmem:                 0 kB
Slab:               1592 kB
SReclaimable:        352 kB
SUnreclaim:         1240 kB
KernelStack:         464 kB
PageTables:            0 kB
NFS_Unstable:          0 kB
Bounce:                0 kB
WritebackTmp:          0 kB
CommitLimit:       20644 kB
Committed_AS:          0 kB
VmallocTotal:          0 kB
VmallocUsed:           0 kB
VmallocChunk:          0 kB

Particularly alarming nonzero value Unevictable.

So i have to manually boot it all the time. How to fix this issue?

Thank you very much for your help