Cannot login into my NAS nor shutdown it safely

[jeyare]

dir (to see last edit timestamps)

 

[daghemo]

Ok, so just like any other Linux system...
I saw this:

2019-09-11T15:10:14+02:00 RS1219NAS kernel: [346071.420088] FAT-fs (synoboot2): fat_set_state: set=1 process=synoddsmd pid=15221 2019-09-11T15:10:14+02:00 RS1219NAS kernel: [346071.440881] FAT-fs (synoboot2): fat_set_state: set=0 process=synoddsmd pid=15221 2019-09-11T15:10:14+02:00 RS1219NAS kernel: [346071.491536] FAT-fs (synoboot2): fat_set_state: set=1 process=synoddsmd pid=15221 2019-09-11T15:10:14+02:00 RS1219NAS kernel: [346071.504123] FAT-fs (synoboot2): fat_set_state: set=0 process=synoddsmd pid=15221 2019-09-11T22:00:03+02:00 RS1219NAS synoscgi_SYNO.ActiveBackup.Task_1_backup[15053]: Ipc response from '/run/synoabk/abk-agent-service-cmd-socket' is not success: {"error_code":120 2,"success":false} 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.391835] INFO: task ActiveBackup-GS:15987 blocked for more than 120 seconds. 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.400124] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.416991] ffff880410cffc60 0000000000000082 000000000000c000 ffff880410cfffd8 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.425394] ffff880410cfffd8 ffff8803ddae1800 0000000000000000 0000000000000286 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.433835] ffff88011834d458 ffff88011834d458 ffff880307b872d8 0000000000000fff 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.442250] Call Trace: 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.445116] [<ffffffffa06fba65>] ? btrfs_start_ordered_extent+0x95/0x110 [btrfs] 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.453603] [<ffffffff81054730>] ? wake_up_atomic_t+0x30/0x30 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.460272] [<ffffffffa06ee3c0>] ? btrfs_page_mkwrite+0x180/0x3d0 [btrfs] 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.468079] [<ffffffff810d7d76>] ? do_wp_page+0x596/0x8f0 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.474322] [<ffffffff810d91f6>] ? handle_pte_fault+0x5a6/0x9a0 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.481145] [<ffffffff810da1a9>] ? handle_mm_fault+0x149/0x2a0 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.487873] [<ffffffff8102b7db>] ? __do_page_fault+0x16b/0x480 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.494600] [<ffffffff811016ce>] ? __sb_end_write+0x2e/0x70 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.501037] [<ffffffff810fdc3a>] ? vfs_write+0x27a/0x350 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.507188] [<ffffffff810ff064>] ? SyS_write+0x84/0xb0 2019-09-12T04:15:01+02:00 RS1219NAS kernel: [393196.513136] [<ffffffff814b2592>] ? page_fault+0x22/0x30 2019-09-12T04:43:01+02:00 RS1219NAS kernel: [394877.857090] INFO: task domain_http_ser:14358 blocked for more than 120 seconds. 2019-09-12T04:43:01+02:00 RS1219NAS kernel: [394877.865372] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.882291] ffff880417ba3bc8 0000000000000086 000000000000c000 ffff880417ba3fd8 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.890699] ffff880417ba3fd8 ffff88042493d800 0000000000000286 ffff880188034878 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.899104] ffff880188034878 ffff88041f220358 ffff8803773d7780 ffff88041f220200 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.907608] Call Trace: 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.910474] [<ffffffffa06fba65>] ? btrfs_start_ordered_extent+0x95/0x110 [btrfs] 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.918961] [<ffffffff81054730>] ? wake_up_atomic_t+0x30/0x30 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.925615] [<ffffffffa06efb70>] ? lock_and_cleanup_extent_if_need+0x200/0x220 [btrfs] 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.934702] [<ffffffffa06f1d47>] ? __btrfs_buffered_write+0x197/0x5e0 [btrfs] 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.943015] [<ffffffffa06f5e08>] ? btrfs_file_aio_write+0x238/0x590 [btrfs] 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.951007] [<ffffffff810f8aa7>] ? __mem_cgroup_commit_charge.constprop.55+0x77/0x320 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.959970] [<ffffffff810fcff9>] ? do_sync_write+0x69/0xa0 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.966320] [<ffffffff810fda81>] ? vfs_write+0xc1/0x350 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.972366] [<ffffffff810ff03c>] ? SyS_write+0x5c/0xb0 2019-09-12T04:43:02+02:00 RS1219NAS kernel: [394877.978316] [<ffffffff814b2dc4>] ? system_call_fastpath+0x22/0x27