[FS#962] Raspberry Pi (B+): kernel: hw csum failure (is back)

LEDE Bugs lede-bugs at lists.infradead.org
Tue Aug 15 13:55:31 PDT 2017


A new Flyspray task has been opened.  Details are below. 

User who did this - Martin Stefany (martinstefany) 

Attached to Project - LEDE Project
Summary - Raspberry Pi (B+): kernel: hw csum failure (is back)
Task Type - Bug Report
Category - Kernel
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - lede-17.01
Due in Version - Undecided
Due Date - Undecided
Details - Hello team,

it seems that kernel errors "hw csum failure" are somehow back?
I'm running LEDE 17.01.2 on Raspberry Pi B+:


# cat /etc/os-release
NAME="LEDE"
VERSION="17.01.2, Reboot"
ID="lede"
ID_LIKE="lede openwrt"
PRETTY_NAME="LEDE Reboot 17.01.2"
VERSION_ID="17.01.2"
HOME_URL="http://lede-project.org/"
BUG_URL="http://bugs.lede-project.org/"
SUPPORT_URL="http://forum.lede-project.org/"
BUILD_ID="r3435-65eec8bd5f"
LEDE_BOARD="brcm2708/bcm2708"
LEDE_ARCH="arm_arm1176jzf-s_vfp"
LEDE_TAINTS="no-all"
LEDE_DEVICE_MANUFACTURER="LEDE"
LEDE_DEVICE_MANUFACTURER_URL="http://lede-project.org/"
LEDE_DEVICE_PRODUCT="Generic"
LEDE_DEVICE_REVISION="v0"
LEDE_RELEASE="LEDE Reboot 17.01.2 r3435-65eec8bd5f"



# cat /proc/cpuinfo
processor       : 0
model name      : ARMv6-compatible processor rev 7 (v6l)
BogoMIPS        : 697.95
Features        : half thumb fastmult vfp edsp java tls
CPU implementer : 0x41
CPU architecture: 7
CPU variant     : 0x0
CPU part        : 0xb76
CPU revision    : 7

Hardware        : BCM2708
Revision        : 0000
Serial          : 00000000fd17e85b


And I'm getting tons of:


Tue Aug 15 22:44:39 2017 kern.err kernel: [  442.662181] eth0.2: hw csum failure
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.669788] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.71 #0
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.679616] Hardware name: BCM2708
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.687047] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.696911] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.706767] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.716618] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.726511] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.736384] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.746236] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.755971] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.765780] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.775480] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.785147] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.794803] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.804518] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.814197] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.823872] Exception stack(0xc048bf58 to 0xc048bfa0)
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.832746] bf40:                                                       00000001 00000000
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.844812] bf60: 00000000 00000000 c048a000 c048c074 00000000 00000000 c04912e0 c048c07c
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.856946] bf80: 00000001 c049207b 00000000 c048bfa8 c0018f34 c0018f38 60000013 ffffffff
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.869129] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.878909] Function entered at [] from []
Tue Aug 15 22:44:39 2017 kern.warn kernel: [  442.888748] Function entered at [] from []


It's running kernel 4.4.71:

# uname -m -r -s -p -v -i -o
Linux 4.4.71 #0 Thu Jun 8 10:18:56 2017 armv6l unknown unknown GNU/Linux


I have found this commit, which seems it should be fixed by 4.4.8, but it's not?
https://git.lede-project.org/?p=source.git;a=commitdiff;h=3faf65e92857aa5466791da3ec623c23af1f8130

Thank a lot!
Martin

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=962



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