system log on AC87U router

[zero13ro]

Hi,

just discovered this in the router log, maybe somone around here have an idea how to fix it.

Jul 7 11:28:56 kernel: BUG: scheduling while atomic: mtdblock3/252/0x40000002
Jul 7 11:28:56 kernel: module: ct_notification bf80a000 1684
Jul 7 11:28:56 kernel: module: bw_forward bf7ea000 93908
Jul 7 11:28:56 kernel: module: IDP bf75e000 529326
Jul 7 11:28:56 kernel: module: ohci_hcd bf754000 17918
Jul 7 11:28:56 kernel: module: ehci_hcd bf747000 31565
Jul 7 11:28:56 kernel: module: xhci_hcd bf734000 51124
Jul 7 11:28:56 kernel: module: nf_nat_sip bf72d000 5031
Jul 7 11:28:56 kernel: module: nf_conntrack_sip bf724000 15713
Jul 7 11:28:56 kernel: module: nf_nat_h323 bf71d000 4761
Jul 7 11:28:56 kernel: module: nf_conntrack_h323 bf70f000 33807
Jul 7 11:28:56 kernel: module: nf_nat_rtsp bf709000 3202
Jul 7 11:28:56 kernel: module: nf_conntrack_rtsp bf703000 4067
Jul 7 11:28:56 kernel: module: nf_nat_ftp bf6fd000 1144
Jul 7 11:28:56 kernel: module: nf_conntrack_ftp bf6f6000 4909
Jul 7 11:28:56 kernel: module: ip6table_mangle bf6f0000 934
Jul 7 11:28:56 kernel: module: sr_mod bf6e8000 10842
Jul 7 11:28:56 kernel: module: cdrom bf6db000 30901
Jul 7 11:28:56 kernel: module: cdc_mbim bf6d5000 3129
Jul 7 11:28:56 kernel: module: qmi_wwan bf6ce000 5780
Jul 7 11:28:56 kernel: module: cdc_wdm bf6c7000 7252
Jul 7 11:28:56 kernel: module: cdc_ncm bf6bf000 8750
Jul 7 11:28:56 kernel: module: rndis_host bf6b8000 4936
Jul 7 11:28:56 kernel: module: cdc_ether bf6b2000 3187
Jul 7 11:28:56 kernel: module: asix bf6aa000 10832
Jul 7 11:28:56 kernel: module: usbnet bf6a1000 11161
Jul 7 11:28:56 kernel: module: mii bf69b000 3367
Jul 7 11:28:56 kernel: module: usblp bf693000 10321
Jul 7 11:28:56 kernel: module: thfsplus bf64d000 81793
Jul 7 11:28:56 kernel: module: tntfs bf5d1000 454497
Jul 7 11:28:56 kernel: module: tfat bf598000 188546
Jul 7 11:28:56 kernel: module: ext2 bf584000 52776
Jul 7 11:28:56 kernel: module: ext4 bf543000 221674
Jul 7 11:28:56 kernel: module: jbd2 bf530000 48993
Jul 7 11:28:56 kernel: module: crc16 bf52a000 1007
Jul 7 11:28:56 kernel: module: ext3 bf508000 106409
Jul 7 11:28:56 kernel: module: jbd bf4f7000 42367
Jul 7 11:28:56 kernel: module: mbcache bf4f0000 4599
Jul 7 11:28:56 kernel: module: usb_storage bf4e1000 34290
Jul 7 11:28:56 kernel: module: sg bf4d6000 19855
Jul 7 11:28:56 kernel: module: sd_mod bf4ca000 21983
Jul 7 11:28:56 kernel: module: scsi_wait_scan bf4c4000 416
Jul 7 11:28:56 kernel: module: scsi_mod bf49f000 108738
Jul 7 11:28:56 kernel: module: usbcore bf47c000 101810
Jul 7 11:28:56 kernel: module: ip6t_LOG bf475000 4494
Jul 7 11:28:56 kernel: module: ip6table_filter bf46f000 750
Jul 7 11:28:56 kernel: module: jffs2 bf451000 91274
Jul 7 11:28:56 kernel: module: zlib_deflate bf447000 19489
Jul 7 11:28:56 kernel: module: nf_nat_pptp bf441000 1602
Jul 7 11:28:56 kernel: module: nf_conntrack_pptp bf43b000 3355
Jul 7 11:28:56 kernel: module: nf_nat_proto_gre bf435000 887
Jul 7 11:28:56 kernel: module: nf_conntrack_proto_gre bf42f000 3296
Jul 7 11:28:56 kernel: module: wl bf031000 3938270
Jul 7 11:28:56 kernel: module: igs bf029000 11887
Jul 7 11:28:56 kernel: module: emf bf020000 15145
Jul 7 11:28:56 kernel: module: et bf00a000 61421
Jul 7 11:28:57 kernel: module: ctf bf000000 20243
Jul 7 11:28:57 kernel: Modules linked in: ct_notification bw_forward(P) IDP(P) ohci_hcd ehci_hcd xhci_hcd 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 sr_mod cdrom cdc_mbim qmi_wwan cdc_wdm cdc_ncm rndis_host cdc_ether asix usbnet mii usblp 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_co
Jul 7 11:28:57 kernel: [] (unwind_backtrace+0x0/0xf8) from [] (schedule+0x434/0x75c)
Jul 7 11:28:57 kernel: [] (schedule+0x434/0x75c) from [] (__cond_resched+0x24/0x34)
Jul 7 11:28:57 kernel: [] (__cond_resched+0x24/0x34) from [] (_cond_resched+0x34/0x44)
Jul 7 11:28:57 kernel: [] (_cond_resched+0x34/0x44) from [] (shrink_page_list+0x48/0x728)
Jul 7 11:28:57 kernel: [] (shrink_page_list+0x48/0x728) from [] (shrink_inactive_list+0x104/0x1dc)
Jul 7 11:28:57 kernel: [] (shrink_inactive_list+0x104/0x1dc) from [] (shrink_zone+0x3a4/0x418)
Jul 7 11:28:57 kernel: [] (shrink_zone+0x3a4/0x418) from [] (try_to_free_pages+0x150/0x33c)
Jul 7 11:28:57 kernel: [] (try_to_free_pages+0x150/0x33c) from [] (__alloc_pages_nodemask+0x31c/0x698)
Jul 7 11:28:57 kernel: [] (__alloc_pages_nodemask+0x31c/0x698) from [] (__slab_alloc+0x1b4/0x814)
Jul 7 11:28:57 kernel: [] (__slab_alloc+0x1b4/0x814) from [] (__kmalloc+0xf4/0x104)
Jul 7 11:28:57 kernel: [] (__kmalloc+0xf4/0x104) from [] (_nflash_mtd_read+0x9c/0x3a0)
Jul 7 11:28:57 kernel: [] (_nflash_mtd_read+0x9c/0x3a0) from [] (nflash_mtd_read+0x4c/0x64)
Jul 7 11:28:57 kernel: [] (nflash_mtd_read+0x4c/0x64) from [] (part_read+0x64/0xe8)
Jul 7 11:28:57 kernel: [] (part_read+0x64/0xe8) from [] (mtdblock_readsect+0x40/0x114)
Jul 7 11:28:57 kernel: [] (mtdblock_readsect+0x40/0x114) from [] (mtd_blktrans_thread+0x204/0x294)
Jul 7 11:28:57 kernel: [] (mtd_blktrans_thread+0x204/0x294) from [] (kthread+0x88/0x90)
Jul 7 11:28:57 kernel: [] (kthread+0x88/0x90) from [] (kernel_thread_exit+0x0/0x8)

I'm running Merlin Firmware:380.59 on AC87U router.

 

[hggomes]

Have you RESET the router after flashing 380.59? Press your RESET button on the back 10-15s without releasing it and wait a reboot after, then do a manual configuration without any old configuration file import and check your syslog again.

 

[zero13ro]

yes, did that 3 weeks ago when I have installed the Merlin WRT and conf the router from scratch at that time.

 

[hggomes]

So HW reset was done and not Software reset via WEBUI, ok.

You haven't seen it happening on previous FW versions, only on 380.59? Have you tried stock ASUS 380.2697? (same 380.59 code base)

I'm using FW based on 380.59 and i never seen it happening so far, beside that message do you see any issues happening on the FW?

Also, do you use only the basics on the router? Or you also use Entware services and/or others...?

 

[zero13ro]

Really don't know since from day 0 when I have received the router I have upgraded to Merlin 380.59 version.
No other strange messages are visible except this one that is visible once a day.

I have also installed Entware-NG on it together with Transmission, and other packages.

https://www.hqt.ro/how-to-format-usb-drive/
https://www.hqt.ro/how-to-install-new-generation-entware/
https://www.hqt.ro/transmission-on-asuswrt-routers-through-entware/
https://www.hqt.ro/how-to-install-mysql-server-phpmyadmin-through-entware-ng/

i'm using an external 32GB flash drive for Entware-NG plugged into the USB 2.0 port.

 

[hggomes]

Any of your USB drives are self powered? I think I've seen something similar back then and it was the USB drive doing it, though not 100% sure.

 

[zero13ro]

I dont think that usb memory sticks have power management, its a small stick and not an external hdd that can have build in power management.

 

[hggomes]

Hmm, OK. My advise to you is testing another FW version like 380.58 for example or other FW versions (ASUS / RMerlin) and check if you still seeing it happening.

 

[john9527]

Seen before.....dial back on your torrent number of connections and connections per torrent.

 

[zero13ro]

john9527, can you please give me more details?
At this point, into Transmission settings, I have:

- Max peer torrent 30
- Max peer overall 80

and currently only 5 torrents that are seeding.