1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
Dismiss Notice

Welcome To SNBForums

SNBForums is a community for anyone who wants to learn about or discuss the latest in wireless routers, network storage and the ins and outs of building and maintaining a small network.

If you'd like to post a question, simply register and have at it!

While you're at it, please check out SmallNetBuilder for product reviews and our famous Router Charts, Ranker and plenty more!

Crashes?

Discussion in 'Asuswrt-Merlin' started by TonyK132, Feb 18, 2020.

  1. TonyK132

    TonyK132 Regular Contributor

    Joined:
    Jul 24, 2017
    Messages:
    171
    Is anyone else seeing this in their crash logs? This is happening to me about twice an hour. Do I need to do anything about it?



    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: dcd[6762]: unhandled level 3 translation fault (11) at 0x00000000, esr 0x92000007
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: pgd = ffffffc01728b000
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: [00000000] *pgd=0000000008d3c003, *pud=0000000008d3c003, *pmd=00000000110ca003, *pte=0000000000000000
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: CPU: 1 PID: 6762 Comm: dcd Tainted: P O 4.1.27 #2
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: Hardware name: Broadcom-v8A (DT)
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: task: ffffffc008fa0080 ti: ffffffc012338000 task.ti: ffffffc012338000
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: PC is at 0xf74f2f44
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: LR is at 0x1dc74
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: pc : [<00000000f74f2f44>] lr : [<000000000001dc74>] pstate: 600e0010
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: sp : 00000000ffbb0048
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: x12: 000000000009ff08
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: x11: 00000000f67ff024 x10: 00000000000a02ac
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: x9 : 00000000f67ff878 x8 : 00000000000a0764
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: x7 : 00000000f67ff8b0 x6 : 00000000000a075e
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: x5 : 0000000000000000 x4 : 00000000f67ff85c
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: x3 : 0000000000000000 x2 : 00000000ffbb0024
    Feb 18 07:34:04 RT-AC86U-1BD0 kernel: x1 : 000000000007c66c x0 : 0000000000000000
     
  2. skeal

    skeal Part of the Furniture

    Joined:
    Apr 30, 2016
    Messages:
    3,836
    Location:
    Riderville, SK
    For this model that is normal to see. It has not been fixed by Asus yet it is out of @RMerlin control. You can however install Scribe and filter this out of your logs.
     
    TonyK132 likes this.
  3. EventPhotoMan

    EventPhotoMan Very Senior Member

    Joined:
    Mar 29, 2018
    Messages:
    638
    Assuming you mean RT-AC86U, how is this normal? I’ve never seen this before.
     
  4. cmkelley

    cmkelley Very Senior Member

    Joined:
    Aug 11, 2015
    Messages:
    1,107
    Location:
    Greater Los Angeles Area, California, USizicstania
    Everyone else has. That crash message is pretty much THE reason I wrote scribe.
     
    L&LD likes this.
  5. Treadler

    Treadler Very Senior Member

    Joined:
    Nov 9, 2017
    Messages:
    627
    Location:
    South Australia
    Par for the course when my daily driver was an 86.:D
     
  6. a5m

    a5m Regular Contributor

    Joined:
    Aug 3, 2013
    Messages:
    86
    I've never seen this either.
     
    Last edited: Feb 20, 2020
  7. EventPhotoMan

    EventPhotoMan Very Senior Member

    Joined:
    Mar 29, 2018
    Messages:
    638
    Well, I’m thankful I have not.

    now back to learning Wireshark. Doing some packet sniffing.
     
  8. jksmurf

    jksmurf Regular Contributor

    Joined:
    Apr 20, 2013
    Messages:
    85
    I am seeing this, seems similar?
    Code:
    Mar  7 11:07:43 wlceventd: WLCEVENTD wlceventd_proc_event(401): eth5: Disassoc 4C:57:CA:XX:XX:XX status: 0, reason: Disassociated because sending station is leaving (or has left) BSS (8)
    Mar  7 11:07:43 kernel: br0: received packet on eth6 with own address as source address
    Mar  7 11:12:48 kernel: dcd[11158]: unhandled level 3 translation fault (11) at 0x00000000, esr 0x92000007
    Mar  7 11:12:48 kernel: pgd = ffffffc00b577000
    Mar  7 11:12:48 kernel: [00000000] *pgd=0000000011f63003, *pud=0000000011f63003, *pmd=0000000011225003, *pte=0000000000000000
    Mar  7 11:12:48 kernel: CPU: 1 PID: 11158 Comm: dcd Tainted: P           O    4.1.27 #2
    Mar  7 11:12:48 kernel: Hardware name: Broadcom-v8A (DT)
    Mar  7 11:12:48 kernel: task: ffffffc0151c8b80 ti: ffffffc00b5c0000 task.ti: ffffffc00b5c0000
    Mar  7 11:12:48 kernel: PC is at 0xf6ffaf44
    Mar  7 11:12:48 kernel: LR is at 0x1dc74
    Mar  7 11:12:48 kernel: pc : [<00000000f6ffaf44>] lr : [<000000000001dc74>] pstate: 600e0010
    Mar  7 11:12:48 kernel: sp : 00000000ffae7e38
    Mar  7 11:12:48 kernel: x12: 000000000009ff08
    Mar  7 11:12:48 kernel: x11: 00000000f62ff024 x10: 00000000000a02ac
    Mar  7 11:12:48 kernel: x9 : 00000000f62ff6b8 x8 : 00000000000a0764
    Mar  7 11:12:48 kernel: x7 : 00000000f62ff6f0 x6 : 00000000000a075e
    Mar  7 11:12:48 kernel: x5 : 0000000000000000 x4 : 00000000f62ff69c
    Mar  7 11:12:48 kernel: x3 : 0000000000000000 x2 : 00000000ffae7e14
    Mar  7 11:12:48 kernel: x1 : 000000000007c66c x0 : 0000000000000000
    k.
     
  9. Andy1932

    Andy1932 Regular Contributor

    Joined:
    Mar 10, 2016
    Messages:
    190
    I believe you’ll only see the dcd crash with Diversion installed.
    EDIT—although, it will happen occasionally without Diversion—but not nearly as much.
     
  10. jksmurf

    jksmurf Regular Contributor

    Joined:
    Apr 20, 2013
    Messages:
    85
    Okey Dokey. Ta.
     
  11. jksmurf

    jksmurf Regular Contributor

    Joined:
    Apr 20, 2013
    Messages:
    85
    Right, I tested for a while without diversion and it seems there were no more dcd crashes. I would now like to put it back; is there something I need to do to avoid crashes in this sceanrio please?

    k.