Comment 3 for bug 1908771

The system experienced a kernel OOPS when trying to allocate memory so it is not likely an issue with ubiquity itself.

Dec 19 08:09:31 ubuntu-mate hw-detect: Detected module 'usb-storage' for 'USB storage'
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918359] cat: page allocation failure: order:5, mode:0x40dc0(GFP_KERNEL|__GFP_COMP|__GFP_ZERO), nodemask=(null),cpuset=/,mems_allowed=0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918369] CPU: 3 PID: 63230 Comm: cat Tainted: P O 5.8.0-25-generic #26-Ubuntu
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918370] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1 04/01/2014
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918370] Call Trace:
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918377] show_stack+0x52/0x58
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918380] dump_stack+0x70/0x8d
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918382] warn_alloc.cold+0x7b/0xdf
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918384] __alloc_pages_slowpath.constprop.0+0xa9f/0xae0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918386] ? get_page_from_freelist+0x68/0x2c0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918387] __alloc_pages_nodemask+0x2d5/0x300
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918389] alloc_pages_current+0x87/0x110
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918391] kmalloc_order+0x1f/0x80
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918392] kmalloc_order_trace+0x24/0xa0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918395] __kmalloc+0x234/0x270
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918397] proc_sys_call_handler.isra.0+0x180/0x210
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918399] proc_sys_read+0x15/0x20
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918400] vfs_read+0xaa/0x190
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918402] ksys_read+0x67/0xe0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918403] __x64_sys_read+0x1a/0x20
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918405] do_syscall_64+0x49/0xc0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918407] entry_SYSCALL_64_after_hwframe+0x44/0xa9
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918409] RIP: 0033:0x7fa4b0734ad2
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918412] Code: c0 e9 b2 fe ff ff 50 48 8d 3d b2 b8 0a 00 e8 d5 0a 02 00 0f 1f 44 00 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 0f 05 <48> 3d 00 f0 ff ff 77 56 c3 0f 1f 44 00 00 48 83 ec 28 48 89 54 24
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918412] RSP: 002b:00007ffe5daece68 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918414] RAX: ffffffffffffffda RBX: 0000000000020000 RCX: 00007fa4b0734ad2
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918414] RDX: 0000000000020000 RSI: 00007fa4afb2a000 RDI: 0000000000000004
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918415] RBP: 00007fa4afb2a000 R08: 00007fa4afb29010 R09: 00007fa4afb29010
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918416] R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000000
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918416] R13: 0000000000000004 R14: 0000000000020000 R15: 0000000000020000
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918418] Mem-Info:
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918421] active_anon:47905 inactive_anon:100831 isolated_anon:0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918421] active_file:93834 inactive_file:70809 isolated_file:0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918421] unevictable:8 dirty:0 writeback:0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918421] slab_reclaimable:20072 slab_unreclaimable:234290
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918421] mapped:31937 shmem:49250 pagetables:1935 bounce:0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918421] free:86517 free_pcp:0 free_cma:0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918423] Node 0 active_anon:191620kB inactive_anon:403324kB active_file:375336kB inactive_file:283236kB unevictable:32kB isolated(anon):0kB isolated(file):0kB mapped:127748kB dirty:0kB writeback:0kB shmem:197000kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB all_unreclaimable? no
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918424] Node 0 DMA free:12456kB min:228kB low:284kB high:340kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:8kB inactive_file:196kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918426] lowmem_reserve[]: 0 3047 3047 3047 3047
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918428] Node 0 DMA32 free:333612kB min:44824kB low:56028kB high:67232kB reserved_highatomic:0KB active_anon:191620kB inactive_anon:403324kB active_file:375328kB inactive_file:283040kB unevictable:32kB writepending:0kB present:3313536kB managed:3223908kB mlocked:32kB kernel_stack:7600kB pagetables:7740kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918433] lowmem_reserve[]: 0 0 0 0 0
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918434] Node 0 DMA: 36*4kB (UME) 37*8kB (UME) 31*16kB (UME) 32*32kB (UM) 12*64kB (UME) 4*128kB (ME) 2*256kB (UE) 3*512kB (UME) 3*1024kB (UME) 2*2048kB (ME) 0*4096kB = 12456kB
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918440] Node 0 DMA32: 14990*4kB (UME) 9818*8kB (UME) 7846*16kB (UME) 2103*32kB (UME) 47*64kB (UM) 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 334344kB
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918445] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918446] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918446] 215168 total pagecache pages
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918448] 1284 pages in swap cache
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918449] Swap cache stats: add 20968, delete 19684, find 2137/2707
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918449] Free swap = 1790028kB
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918450] Total swap = 1854460kB
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918450] 832382 pages RAM
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918451] 0 pages HighMem/MovableOnly
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918451] 22428 pages reserved
Dec 19 08:09:31 ubuntu-mate kernel: [ 366.918452] 0 pages hwpoisoned
Dec 19 08:09:31 ubuntu-mate ubiquity: cat:
Dec 19 08:09:31 ubuntu-mate ubiquity: /proc/sys/kernel/printk
Dec 19 08:09:31 ubuntu-mate ubiquity: : Cannot allocate memory