RT-AC66U_b1 impossible CPU utilization

[densu90]

A 9 month ago i was managed to hook-up 4 TB HDD to RT-AC66U_b1 and it worked pretty well on NTFS for a year! 9 month after I dismount HDD for HW check because web-ui NTFS check dont work for 4 TB anyway. I preformed chekdisk (100% good) and defrag. After that i huked-up drive to rauter and get 100% CPU utilization and no volume mounting. RAM is on 50%.

Spoiler: Syslog shows nonsence:

Aug 27 19:57:36 kernel: device blocksize: 512
Aug 27 19:57:36 kernel: __find_get_block_slow() failed. block=6158477664, b_blocknr=1863510368

repeating indefinitely.

Spoiler: If I use "ps -T":

PID USER VSZ STAT COMMAND
***
1903 %myusrname% 5272 S /sbin/asus_sd sda3 add
***

Or 2 or 4. Depends what i tried in struggle.

Spoiler: For example i move NTFS partition to fit-in some ext partitions for test:

PID USER VSZ STAT COMMAND
1 %myusrname% 5280 D /sbin/preinit
2 %myusrname% 0 SW [kthreadd]
3 %myusrname% 0 SW [ksoftirqd/0]
4 %myusrname% 0 SW [kworker/0:0]
5 %myusrname% 0 SW [kworker/u:0]
6 %myusrname% 0 SW [migration/0]
7 %myusrname% 0 SW [migration/1]
8 %myusrname% 0 SW [kworker/1:0]
9 %myusrname% 0 SW [ksoftirqd/1]
10 %myusrname% 0 SW< [khelper]
11 %myusrname% 0 SW [sync_supers]
12 %myusrname% 0 SW [bdi-default]
13 %myusrname% 0 SW< [kblockd]
14 %myusrname% 0 SW [kswapd0]
15 %myusrname% 0 SW [fsnotify_mark]
16 %myusrname% 0 SW< [crypto]
24 %myusrname% 0 SW [mtdblock0]
25 %myusrname% 0 SW [mtdblock1]
26 %myusrname% 0 SW [mtdblock2]
27 %myusrname% 0 SW [mtdblock3]
28 %myusrname% 0 SW [kworker/u:1]
35 %myusrname% 0 SW [kworker/0:1]
36 %myusrname% 0 SW [kworker/1:1]
37 %myusrname% 0 SW [mtdblock4]
38 %myusrname% 0 SW [mtdblock5]
40 %myusrname% 664 S hotplug2 --persistent --no-coldplug
88 %myusrname% 5268 S console
94 %myusrname% 0 SWN [jffs2_gcd_mtd4]
101 %myusrname% 1412 S /sbin/syslogd -m 0 -S -O /tmp/syslog.log -s 256 -l 6
103 %myusrname% 1416 S /sbin/klogd -c 5
171 %myusrname% 5276 S /sbin/wanduck
178 %myusrname% 5048 S nt_monitor
179 %myusrname% 2068 S protect_srv
180 %myusrname% 5292 S /sbin/netool
187 %myusrname% 5292 S /sbin/netool
188 %myusrname% 5292 S /sbin/netool
191 %myusrname% 2068 S protect_srv
192 %myusrname% 2068 S protect_srv
193 %myusrname% 1152 S dropbear -p 192.168.1.1:22 -j -k
195 %myusrname% 5048 S nt_monitor
196 %myusrname% 5048 S nt_monitor
198 %myusrname% 5196 S nt_center
199 %myusrname% 1268 S /bin/eapd
201 %myusrname% 5272 S wpsaide
202 %myusrname% 2140 S /usr/sbin/wlc_nt
207 %myusrname% 5196 S nt_center
208 %myusrname% 5196 S nt_center
209 %myusrname% 1836 S nas
216 %myusrname% 2260 S /usr/sbin/wlceventd
218 %myusrname% 5048 S nt_monitor
220 %myusrname% 1672 S nt_actMail
221 %myusrname% 1672 S nt_actMail
222 %myusrname% 1672 S nt_actMail
224 %myusrname% 1444 S /usr/sbin/acsd
227 nobody 3200 S dnsmasq --log-async
228 %myusrname% 3188 S dnsmasq --log-async
235 %myusrname% 1440 S crond -l 9
253 %myusrname% 5800 S httpds -s -i br0 -p 8443
254 %myusrname% 5800 S httpd -i br0
255 %myusrname% 1240 S /usr/sbin/infosvr br0
258 %myusrname% 1240 S sysstate
259 %myusrname% 5272 S watchdog
264 %myusrname% 1240 S cstats
265 %myusrname% 2824 S rstats
279 %myusrname% 1280 S lld2d br0
280 %myusrname% 5860 S networkmap --bootwait
283 %myusrname% 5024 S mastiff
284 %myusrname% 5272 S bwdpi_check
286 %myusrname% 5272 S pctime
291 %myusrname% 5272 S erp_monitor
294 %myusrname% 660 S /usr/sbin/sd-idle-2.6 -i 900
300 %myusrname% 1484 S lldpd -L /usr/sbin/lldpcli -I vlan1,eth1,eth2,wds0.*,wds1.*,wds2.* -s RT-AC68U
304 nobody 1456 S lldpd -L /usr/sbin/lldpcli -I vlan1,eth1,eth2,wds0.*,wds1.*,wds2.* -s RT-AC68U
305 %myusrname% 3844 S cfg_server
321 %myusrname% 5280 S amas_lib
344 %myusrname% 0 SW [khubd]
378 %myusrname% 5280 S amas_lib
382 %myusrname% 5024 S mastiff
383 %myusrname% 5024 S mastiff
384 %myusrname% 5024 S mastiff
423 %myusrname% 3844 S cfg_server
424 %myusrname% 3844 S cfg_server
495 %myusrname% 5272 S usbled
496 %myusrname% 2444 S u2ec
497 %myusrname% 1312 S lpd br0
499 %myusrname% 2444 S u2ec
500 %myusrname% 2444 S u2ec
550 %myusrname% 1432 S /usr/sbin/ntp -t -S /sbin/ntpd_synced -p pool.ntp.org -p time.nist.gov
560 %myusrname% 5272 S disk_monitor
588 %myusrname% 8672 S aaews --sdk_log_dir=/tmp
596 %myusrname% 8672 S aaews --sdk_log_dir=/tmp
597 %myusrname% 8672 S aaews --sdk_log_dir=/tmp
598 %myusrname% 8672 S aaews --sdk_log_dir=/tmp
599 %myusrname% 8672 S aaews --sdk_log_dir=/tmp
600 %myusrname% 8672 S aaews --sdk_log_dir=/tmp
601 %myusrname% 8672 S aaews --sdk_log_dir=/tmp
620 %myusrname% 1788 S dcd -i 3600 -p 43200 -b -d /tmp/bwdpi/
621 %myusrname% 2944 S wred -B
622 %myusrname% 1788 S dcd -i 3600 -p 43200 -b -d /tmp/bwdpi/
623 %myusrname% 1788 S dcd -i 3600 -p 43200 -b -d /tmp/bwdpi/
624 %myusrname% 2944 S wred -B
625 %myusrname% 2944 S wred -B
626 %myusrname% 1788 S dcd -i 3600 -p 43200 -b -d /tmp/bwdpi/
627 %myusrname% 1788 S dcd -i 3600 -p 43200 -b -d /tmp/bwdpi/
628 %myusrname% 1788 S dcd -i 3600 -p 43200 -b -d /tmp/bwdpi/
658 %myusrname% 2944 S wred -B
659 %myusrname% 2944 S wred -B
660 %myusrname% 2944 S wred -B
661 %myusrname% 2944 S wred -B
662 %myusrname% 2944 S wred -B
663 %myusrname% 2944 S wred -B
664 %myusrname% 2944 S wred -B
665 %myusrname% 2944 S wred -B
682 %myusrname% 5272 S bwdpi_wred_alive
703 %myusrname% 664 S tcd
1087 %myusrname% 1428 S /sbin/udhcpc -i eth0 -p /var/run/udhcpc0.pid -s /tmp/udhcpc -O33 -O249
1283 %myusrname% 8672 S aaews --sdk_log_dir=/tmp
1837 %myusrname% 1184 S dropbear -p 192.168.1.1:22 -j -k
1838 %myusrname% 1424 S -sh
2227 %myusrname% 1176 S dropbear -p 192.168.1.1:22 -j -k
2237 %myusrname% 1424 S -sh
2296 %myusrname% 0 SW [scsi_eh_0]
2298 %myusrname% 0 SW [usb-storage]
2313 %myusrname% 688 S hotplug2 --persistent --no-coldplug
2317 %myusrname% 688 S hotplug2 --persistent --no-coldplug
2318 %myusrname% 5272 S /sbin/asus_sd sda4 add
2320 %myusrname% 5272 S /sbin/asus_sd sda add
2328 %myusrname% 5336 S hotplug block
2331 %myusrname% 5272 S hotplug block
2338 %myusrname% 0 SW [jbd2/sda2-8]
2339 %myusrname% 0 SW< [ext4-dio-unwrit]
2361 %myusrname% 0 SW [flush-8:0]
2369 %myusrname% 0 SW [jbd2/sda3-8]
2370 %myusrname% 0 SW< [ext4-dio-unwrit]
2395 nobody 1536 S avahi-daemon: running [RT-AC66U_B1-F840.local]
2397 %myusrname% 1412 R mount -t tntfs -o umask=0000,nodev,nls=utf8 /dev/sda4 /tmp/mnt/filev
2456 %myusrname% 1416 R ps -T

Spoiler: As result I get

Filesystem Type Size Used Available Use% Mounted on
/dev/root squashfs 32.5M 32.5M 0 100% /
devtmpfs devtmpfs 124.7M 0 124.7M 0% /dev
tmpfs tmpfs 124.8M 1.7M 123.2M 1% /tmp
/dev/mtdblock4 jffs2 62.8M 10.7M 52.0M 17% /jffs
/dev/sda2 ext4 4.7G 16.0E 4.5G 100% /tmp/mnt/progsv
/dev/sda3 ext4 6.6G 8.0M 6.2G 0% /tmp/mnt/tempv
and
/dev/sda4: UUID="B60F4AFC9C8D5AD5"
/dev/sda3: LABEL="tempv" UUID="fbbfba1f-f75c-d501-e0a1-ba1ff75cd501"
/dev/sda2: LABEL="progsv" UUID="f87e3618-f75c-d501-b058-3618f75cd501"
/dev/sda1: LABEL="swapv" UUID="a8da7196-6a4c-ee3f-c0cb-1b01d8cc896c"

NTFS volume is "/dev/sda4: UUID="B60F4AFC9C8D5AD5"" obviously.

Spoiler: If NTFS alone

Filesystem Type Size Used Available Use% Mounted on
/dev/root squashfs 32.5M 32.5M 0 100% /
devtmpfs devtmpfs 124.7M 0 124.7M 0% /dev
tmpfs tmpfs 124.8M 1.7M 123.2M 1% /tmp
/dev/mtdblock4 jffs2 62.8M 10.7M 52.0M 17% /jffs

and
/dev/sda1: UUID="B60F4AFC9C8D5AD5"

I checked it:

• at usb2 port. without chsnges
• with another GPT-NTFS-formatted HDD (1TB) - works ideally
• with up to 3 additional linux volumes and NTFS-only at 4TB drive
• reset to "factory defaults" and load 100% working config and jffs

As i understund it's dying particularly for 3.6 TB NTFS volume which works earlier well and works perfectly on PC now. Do someone have any ideas?
PS:
I turn-off all I can imagine for USB-HDD (as SMB/FTP/DM/Logs etc)
ver.384.13

 

[bbunge]

Per the Asus Plug-n-Share Disls Compatibility list (https://event.asus.com/2009/networks/disksupport/) you should be OK with the 4TB on the RT-AC66U_B1.
However, you could still be having memory issues. Run the 4TB off of the USB2 port and have a thumbdrive in the USB3 port, but set that to USB2 operation, and have a 256 to 512 MB swap file or swap partition, on the thumb drive.
You may want to consider partitioning the 4TB into two 2TB partitions. Usr another PC to check the file system(s) on teh USB drive.

 

[densu90]

Hi!
Thanks!
I will try your advice, definitely. But funny part of this is it works 2 days ago with the this disk in this enclosure and this partition at router with this settings and OS. And 9 month ago I tested it for full capacity (all 3.6 TB to the last bit). I was filling it with fils generated by pattern on PC and check on router, format again and filling it by the files again thru router direcly. An all was worked fine without slitest errors in both cases!
Maybe you have an idea why it glitched so nasty? Theoretically? Because I do not have any.

 

[densu90]

I am frustrated. I emptyfy 1.6 TB from my NTFS partition (moved files to other HDDs) and its hooked-up perfectly. Without any other actions. Why in the world?!?

Why it had hanged-up earlier? Why it didn't before? What should I do to prevent this thing (and full day of time to move files forward and backwards)?

 

[densu90]

I moved all files back. It's work well. I do not understand why...