RT-AC87U - USB 3.0 not detected at reboot and weird logs

[Thefoolfighter]

Hi all,

I am new to Asus router. Had 380.65_4 running. My USB 3.0 ext3 portable harddisk is not being detected every time I auto reboot my router. I need to plug it out and in again for it to be detected. Is this normal?

Also, I am seeing a bunch of logs which I find it hard to understand and is hoping someone can help to give some pointers. There are 3 extracts to the logs below:

Extract 1 *******

08:00:12 kernel: <4>---[ end trace ec996b774ac79958 ]---
Aug 1 08:00:12 kernel: <4>------------[ cut here ]------------
Aug 1 08:00:12 kernel: <4>WARNING: at mm/vmalloc.c:108 vmap_page_range_noflush+0x1a0/0x1d8()
Aug 1 08:00:12 kernel: <4>module: nf_nat_sip bf718000 5031
Aug 1 08:00:12 kernel: <4>module: nf_conntrack_sip bf70f000 15713
Aug 1 08:00:12 kernel: <4>module: nf_nat_h323 bf708000 4761
Aug 1 08:00:12 kernel: <4>module: nf_conntrack_h323 bf6fa000 33807
Aug 1 08:00:12 kernel: <4>module: nf_nat_rtsp bf6f4000 3202
Aug 1 08:00:12 kernel: <4>module: nf_conntrack_rtsp bf6ee000 4067
Aug 1 08:00:12 kernel: <4>module: nf_nat_ftp bf6e8000 1144
Aug 1 08:00:12 kernel: <4>module: nf_conntrack_ftp bf6e1000 4909
Aug 1 08:00:12 kernel: <4>module: ip6table_mangle bf6db000 934
Aug 1 08:00:12 kernel: <4>module: cdc_mbim bf6d5000 3129
Aug 1 08:00:12 kernel: <4>module: qmi_wwan bf6ce000 5780
Aug 1 08:00:12 kernel: <4>module: cdc_wdm bf6c7000 7252
Aug 1 08:00:12 kernel: <4>module: cdc_ncm bf6bf000 8750
Aug 1 08:00:12 kernel: <4>module: rndis_host bf6b8000 4936
Aug 1 08:00:12 kernel: <4>module: cdc_ether bf6b2000 3187
Aug 1 08:00:12 kernel: <4>module: asix bf6aa000 10832
Aug 1 08:00:12 kernel: <4>module: usbnet bf6a1000 11161
Aug 1 08:00:12 kernel: <4>module: mii bf69b000 3367
Aug 1 08:00:12 kernel: <4>module: usblp bf693000 10321
Aug 1 08:00:12 kernel: <4>module: ohci_hc ^Cf689000 17918
Aug 1 08:00:12 kernel: <4>module: ehci_hcd bf67c000 31565
Aug 1 08:00:12 kernel: <4>module: xhci_hcd bf669000 51124
Aug 1 08:00:12 kernel: <4>module: thfsplus bf64d000 81793
..........
Aug 1 08:00:12 kernel: <4>module: ctf bf000000 20367
Aug 1 08:00:12 kernel: <4>Modules linked in: nf_nat_sip nf_conntrack_sip nf_nat_h323 nf_conntrack_h323 nf_nat_rtsp nf_conntrack_rtsp nf_nat_ftp nf_conntrack_ftp ip6table_mangle cdc_mbim qmi_wwan cdc_wdm cdc_ncm rndis_host cdc_ether asix usbnet mii usblp ohci_hcd ehci_hcd xhci_hcd thfsplus tntfs(P) tfat(P) ext2 ext4 jbd2 crc16 ext3 jbd mbcache usb_storage sg sd_mod scsi_wait_scan scsi_mod usbcore ip6t_LOG ip6table_filter jffs2 zlib_deflate nf_nat_pptp nf_conntrack_pptp nf_nat_proto_gre nf_conntrack_prot
Aug 1 08:00:12 kernel: <4>[] (unwind_backtrace+0x0/0xf8) from [] (warn_slowpath_common+0x4c/0x64)
Aug 1 08:00:12 kernel: <4>[] (warn_slowpath_common+0x4c/0x64) from [] (warn_slowpath_null+0x1c/0x24)
Aug 1 08:00:12 kernel: <4>[] (warn_slowpath_null+0x1c/0x24) from [] (vmap_page_range_noflush+0x1a0/0x1d8)
Aug 1 08:00:12 kernel: <4>[] (vmap_page_range_noflush+0x1a0/0x1d8) from [] (vmap_page_range+0xc/0x48)
Aug 1 08:00:12 kernel: <4>[] (vmap_page_range+0xc/0x48) from [] (map_vm_area+0x28/0x40)
Aug 1 08:00:12 kernel: <4>[] (map_vm_area+0x28/0x40) from [] (__vmalloc_area_node+0xbc/0x138)
Aug 1 08:00:12 kernel: <4>[] (__vmalloc_area_node+0xbc/0x138) from [] (vmalloc+0x28/0x30)
Aug 1 08:00:12 kernel: <4>[] (vmalloc+0x28/0x30) from [] (do_ipt_get_ctl+0x208/0x404)
Aug 1 08:00:12 kernel: <4>[] (do_ipt_get_ctl+0x208/0x404) from [] (nf_sockopt+0x190/0x1d4)
Aug 1 08:00:12 kernel: <4>[] (nf_sockopt+0x190/0x1d4) from [] (nf_getsockopt+0x1c/0x24)
Aug 1 08:00:12 kernel: <4>[] (nf_getsockopt+0x1c/0x24) from [] (ip_getsockopt+0x94/0xbc)
Aug 1 08:00:12 kernel: <4>[] (ip_getsockopt+0x94/0xbc) from [] (sock_common_getsockopt+0x20/0x28)
Aug 1 08:00:12 kernel: <4>[] (sock_common_getsockopt+0x20/0x28) from [] (sys_getsockopt+0x58/0x9c)
Aug 1 08:00:12 kernel: <4>[] (sys_getsockopt+0x58/0x9c) from [] (ret_fast_syscall+0x0/0x30)
Aug 1 08:00:12 kernel: <4>---[ end trace ec996b774ac79959 ]---

Extract 2 *******

08:00:12 kernel: <6>br0: port 2(eth1) entering disabled state
Aug 1 08:00:12 kernel: <4>mm/memory.c:21f_nat_h323 bf708000 4761
Aug 1 08:00:12 kernel: <4>mm/memory.c:216: bad pmd 0021140e.
Aug 1 08:00:12 kernel: <4>mm/memory.c:216: bad pmd 0041140e.
Aug 1 08:00:12 kernel: <4>mm/memory.c:216: bad pmd 0061140e.
Aug 1 08:00:12 kernel: <4>mm/memory.c:216: bad pmd 0081140e.

And a whole long list of bad pmd....

Extract 3 *******

I see the following logs happening even when no one is at home using the internet.

May 16 08:16:55 kernel: klogd started: BusyBox v1.25.1 (2017-03-29 00:40:57 EDT)
May 16 08:16:56 start_nat_rules: apply the nat_rules(/tmp/nat_rules_eth0_eth0)!
May 16 08:17:03 xxx: sh /opt/S50asuslighttpd.1 firewall-start
May 16 08:17:03 xxx: sh /opt/S50downloadmaster.1 firewall-start
May 16 08:17:09 hour monitor: daemon is starting
May 16 08:17:09 RT-AC87U: start httpd - SSL

 

[joegreat]

Hmm, ... my first impression is a memory error - but it can be only simple memory shortage: Do you have a swap file enabled on the router?

Keep in mind that the tiny 256 MegaBytes (no Giga) are easily overloaded by turning on all the nice features of the router ...

 

[Beherit]

My USB 3.0 ext3 portable harddisk is not being detected every time I auto reboot my router. I need to plug it out and in again for it to be detected. Is this normal?

Not at all. It could be a filesystem error causing it.

If you have a Linux computer available, turn the router off, do a fsck on the harddisk and plug it back in router again.

If you don't, do a drive check from the WebUI on the router. Although I found it not being 100% reliable.

 

[Thefoolfighter]

Thanks folks for the advise. I tried rebooting and then rescanned the harddisk using the webUI. I will monitor the situation.