<div dir="ltr">Hi All,<br><br>Please help me to decode the error messages and reason for this errors.<br><br>System Configuration<br>1. Kernel 4.14.65 For Android Pie.<br>2. RAM 2GB<div><br></div><div>As per my understanding its because of</div><div>i) I am out of memory or due to fragmentation.</div><div><br></div><div>I also tried to set /proc/sys/vm/min_freekbytes from 3MB to 64MB, but issue still persists.<br><br>Below are the errors.<br><br>1)<br>[ 3205.818891] HwBinder:1894_6: page allocation failure: order:7, mode:0x14040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null)<br>[ 3205.830189] CPU: 3 PID: 23012 Comm: HwBinder:1894_6 Tainted: P           O    4.14.65 #261<br>[ 3205.838803] Hardware name: Android(Flattened Device Tree)<br>[ 3205.845153] Backtrace:<br>[ 3205.847617] [<8020dbec>] (dump_backtrace) from [<8020ded0>] (show_stack+0x18/0x1c)<br>[ 3205.855187]  r6:600f0013 r5:8141c21c r4:00000000 r3:d98a4108<br>[ 3205.860852] [<8020deb8>] (show_stack) from [<80bab014>] (dump_stack+0x94/0xa8)<br>[ 3205.868081] [<80baaf80>] (dump_stack) from [<80350674>] (warn_alloc+0xe0/0x194)<br>[ 3205.875389]  r6:80e09abc r5:00000000 r4:81216588 r3:d98a4108<br>[ 3205.881054] [<80350598>] (warn_alloc) from [<80351544>] (__alloc_pages_nodemask+0xd70/0x124c)<br>[ 3205.889576]  r3:00000007 r2:80e09abc<br>[ 3205.893149]  r6:00000040 r5:00000000 r4:00000000<br>[ 3205.897771] [<803507d4>] (__alloc_pages_nodemask) from [<80375484>] (kmalloc_order_trace+0x34/0x124)<br>[ 3205.906906]  r10:00080000 r9:803a983c r8:00080000 r7:00000007 r6:17c00000 r5:014000c0<br>[ 3205.914731]  r4:bf20b800<br>[ 3205.917268] [<80375450>] (kmalloc_order_trace) from [<803a983c>] (__kmalloc+0x1e0/0x318)<br>[ 3205.925358]  r9:80607760 r8:014000c0 r7:20000008 r6:17c00000 r5:17c00000 r4:bf20b800<br>[ 3205.933107] [<803a965c>] (__kmalloc) from [<806a9464>] (dma_common_contiguous_remap+0x40/0xc8)<br>[ 3205.941721]  r10:bf20b800 r9:80607760 r8:af78bd34 r7:20000008 r6:17c00000 r5:17c00000<br>[ 3205.949546]  r4:bf20b800<br>[ 3205.952085] [<806a9424>] (dma_common_contiguous_remap) from [<802187e4>] (__alloc_from_contiguous+0x118/0x144)<br>[ 3205.962086]  r7:00017c00 r6:17c00000 r5:81216588 r4:00000001<br>[ 3205.967748] [<802186cc>] (__alloc_from_contiguous) from [<80218854>] (cma_allocator_alloc+0x44/0x4c)<br>[ 3205.976881]  r10:00000000 r9:af78bdd8 r8:81216588 r7:00c00000 r6:b93ac300 r5:80607760<br>[ 3205.984707]  r4:00000001<br>[ 3205.987241] [<80218810>] (cma_allocator_alloc) from [<80217e28>] (__dma_alloc+0x19c/0x2e4)<br>[ 3205.995501]  r5:be30a400 r4:014000c0<br>[ 3205.999094] [<80217c8c>] (__dma_alloc) from [<80218000>] (arm_dma_alloc+0x4c/0x54)<br>[ 3206.006677]  r10:00000080 r9:17c00000 r8:80c01778 r7:be30a400 r6:81216588 r5:00c00000<br>[ 3206.014533]  r4:00000707<br>[ 3206.017100] [<80217fb4>] (arm_dma_alloc) from [<80607760>] (pmap_cma_alloc+0xbc/0x14c)<br>[ 3206.025048]  r5:814278b8 r4:814901f8<br><br><br>2)<br><br>[  671.925663] kworker/u8:13: page allocation stalls for 10090ms, order:1, mode:0x15080c0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), nodemask=(null)<br>[  671.938469] CPU: 2 PID: 3551 Comm: kworker/u8:13 Tainted: P           O    4.14.65#273<br>[  671.946822] Hardware name: Android (Flattened Device Tree)<br>[  671.953184] Workqueue: events_unbound call_usermodehelper_exec_work<br>[  671.959449] Backtrace:<br>[  671.961901] [<8020dbec>] (dump_backtrace) from [<8020ded0>] (show_stack+0x18/0x1c)<br>[  671.969469]  r6:60060113 r5:8141c09c r4:00000000 r3:db12065c<br>[  671.975129] [<8020deb8>] (show_stack) from [<80ba6850>] (dump_stack+0x94/0xa8)<br>[  671.982356] [<80ba67bc>] (dump_stack) from [<80350610>] (warn_alloc+0xe0/0x194)<br>[  671.989664]  r6:80e09180 r5:00000000 r4:81216588 r3:db12065c<br>[  671.995326] [<80350534>] (warn_alloc) from [<80351520>] (__alloc_pages_nodemask+0xdb0/0x124c)<br>[  672.003846]  r3:0000276a r2:80e09180<br>[  672.007417]  r6:812166a4 r5:8141d880 r4:00000000<br>[  672.012039] [<80350770>] (__alloc_pages_nodemask) from [<8021e914>] (copy_process.part.5+0x114/0x1a28)<br>[  672.021345]  r10:00000000 r9:99848780 r8:00000000 r7:81447c48 r6:81216588 r5:00808111<br>[  672.029169]  r4:9b355280<br>[  672.031702] [<8021e800>] (copy_process.part.5) from [<802203b0>] (_do_fork+0xd0/0x464)<br>[  672.039617]  r10:00000000 r9:00000000 r8:9d008400 r7:00000000 r6:81216588 r5:9b62f840<br>[  672.047441]  r4:00808111<br>[  672.049972] [<802202e0>] (_do_fork) from [<802207a4>] (kernel_thread+0x38/0x40)<br>[  672.057281]  r10:00000000 r9:81422554 r8:9d008400 r7:00000000 r6:9d004500 r5:9b62f840<br>[  672.065105]  r4:81216588<br>[  672.067642] [<8022076c>] (kernel_thread) from [<802399b4>] (call_usermodehelper_exec_work+0x44/0xe0)<br>[  672.076775] [<80239970>] (call_usermodehelper_exec_work) from [<8023cfc8>] (process_one_work+0x154/0x518)<br>[  672.086338]  r5:9b62f840 r4:98b43480<br>[  672.089913] [<8023ce74>] (process_one_work) from [<8023d3e4>] (worker_thread+0x58/0x56c)<br>[  672.098003]  r10:00000088 r9:98b43480 r8:98b43498 r7:8120f900 r6:88eea038 r5:9d008424<br>[  672.105827]  r4:9d008400<br>[  672.108362] [<8023d38c>] (worker_thread) from [<802440d8>] (kthread+0x134/0x164)<br>[  672.115757]  r10:838dbe68 r9:99e7a2a8 r8:8023d38c r7:98b43480 r6:9bf0d600 r5:00000000<br>[  672.123581]  r4:99e7a280<br>[  672.126116] [<80243fa4>] (kthread) from [<80209258>] (ret_from_fork+0x14/0x3c)<br>[  672.133338]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80243fa4<br>[  672.141162]  r4:9bf0d600 r3:00000000<br>[  672.147376] Mem-Info:<br>[  672.149667] active_anon:68540 inactive_anon:101042 isolated_anon:207<br>[  672.149667]  active_file:26674 inactive_file:17535 isolated_file:2<br>[  672.149667]  unevictable:610 dirty:0 writeback:152 unstable:0<br>[  672.149667]  slab_reclaimable:5039 slab_unreclaimable:9749<br>[  672.149667]  mapped:32149 shmem:45729 pagetables:4266 bounce:0<br>[  672.149667]  free:18378 free_pcp:59 free_cma:0<br>[  672.183745] Node 0 active_anon:274456kB inactive_anon:404216kB active_file:106672kB inactive_file:70164kB unevictable:2440kB isolated(anon):416kB isolated(file):8kB mapped:128596kB dirty:0kB writeback:544kB shmem:182916kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no<br>[  672.208055] DMA free:72984kB min:65536kB low:87004kB high:103388kB active_anon:109860kB inactive_anon:109304kB active_file:408kB inactive_file:772kB unevictable:0kB writepending:616kB present:450560kB managed:414704kB mlocked:0kB kernel_stack:5984kB pagetables:7024kB bounce:0kB free_pcp:708kB local_pcp:4kB free_cma:0kB</div><div><br></div><div><br></div><div>Regards,</div><div>Pankaj</div></div>