Not only transmission but webmin was also killed , it started happening since last 2 days
$this->bbcode_second_pass_code('', '[95274.590000] transmission-da invoked oom-killer: gfp_mask=0x201da, order=0, oomkilladj=0
[95274.600000] [<c002e1fc>] (unwind_backtrace+0x0/0xe0) from [<c007b340>] (oom_kill_process.isra.8+0xa0/0x214)
[95274.610000] [<c007b340>] (oom_kill_process.isra.8+0xa0/0x214) from [<c007b79c>] (__out_of_memory+0x120/0x1ac)
[95274.620000] [<c007b79c>] (__out_of_memory+0x120/0x1ac) from [<c007ba8c>] (out_of_memory+0x6c/0xdc)
[95274.630000] [<c007ba8c>] (out_of_memory+0x6c/0xdc) from [<c007e348>] (__alloc_pages_nodemask+0x534/0x560)
[95274.640000] [<c007e348>] (__alloc_pages_nodemask+0x534/0x560) from [<c0080600>] (__do_page_cache_readahead+0x104/0x25c)
[95274.650000] [<c0080600>] (__do_page_cache_readahead+0x104/0x25c) from [<c008097c>] (force_page_cache_readahead+0x94/0xcc)
[95274.660000] [<c008097c>] (force_page_cache_readahead+0x94/0xcc) from [<c007bc88>] (sys_fadvise64_64+0x18c/0x1e0)
[95274.670000] [<c007bc88>] (sys_fadvise64_64+0x18c/0x1e0) from [<c002c05c>] (sys_arm_fadvise64_64+0x18/0x20)
[95274.680000] [<c002c05c>] (sys_arm_fadvise64_64+0x18/0x20) from [<c0028ee0>] (ret_fast_syscall+0x0/0x2c)
[95274.690000] Mem-info:
[95274.690000] Normal per-cpu:
[95274.690000] CPU 0: hi: 42, btch: 7 usd: 31
[95274.700000] CPU 1: hi: 42, btch: 7 usd: 36
[95274.700000] Active_anon:9456 active_file:1213 inactive_anon:9978
[95274.700000] inactive_file:1406 unevictable:0 dirty:3 writeback:1470 unstable:0
[95274.700000] free:320 slab:1509 mapped:471 pagetables:79 bounce:0
[95274.720000] Normal free:1280kB min:1440kB low:1800kB high:2160kB active_anon:37824kB inactive_anon:39912kB active_file:4852kB inactive_file:5624kB unevictable:0kB present:130048kB pages_scanned:8288 all_unreclaimable? no
[95274.740000] lowmem_reserve[]: 0 0
[95274.750000] Normal: 284*4kB 0*8kB 1*16kB 2*32kB 1*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 1280kB
[95274.760000] 18365 total pagecache pages
[95274.760000] 0 pages in swap cache
[95274.760000] Swap cache stats: add 0, delete 0, find 0/0
[95274.770000] Free swap = 0kB
[95274.770000] Total swap = 0kB
[95274.780000] 32768 pages of RAM
[95274.780000] 479 free pages
[95274.780000] 1323 reserved pages
[95274.790000] 1512 slab pages
[95274.790000] 3363 pages shared
[95274.790000] 0 pages swap cached
[95274.800000] Out of memory: kill process 5509 (transmission-da) score 529 or a child
[95274.800000] Killed process 5509 (transmission-da)
')