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From
SubjectRE: [PATCH net] r8152: Fix broken RX checksums.
Date
Mark Lord [mailto:mlord@pobox.com]
> Sent: Thursday, November 03, 2016 2:30 AM
> To: Hayes Wang; David Miller
[...]
> I have poked at it some more, and thus far it appears that it is
> only necessary to disable TCP rx checksums. The system doesn't crash
> when only IP/UDP checksums are enabled, but does when TCP checksums are on.
>
> This happens regardless of whether RX_AGG is disabled or enabled,
> and increasing/decreasing the number of RX URBs (RTL8152_MAX_RX)
> doesn't seem to affect it.

I test Raspberry Pi v1, but I couldn't boot with NFSROOT through
both onboard nic and RTL8152. I get following error.

VFS: Unable to mount root fs via NFS, trying floppy.
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)

However, if I start the system without NFSROOT, I could mount the nfs fs.
Any idea?

NFS server: Fedora 24
Raspberry Pi OS: 2016-09-23-raspbian-jessie

Content of /etc/exports:

/nfsexport *(rw,sync,no_root_squash)

I change the cmdline.txt from

dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1
root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline
fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles

to

dwc_otg.lpm_enable=0 console=serial0,115200 console=tty1
root=/dev/nfs nfsroot=192.168.94.2:/nfsexport ip=192.168.94.22
rw rootwait quiet splash plymouth.ignore-serial-consoles

Best Regards,
Hayes

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