Bug 198927 - if_msk TCP fragmentation causes NFS mount fail
Summary: if_msk TCP fragmentation causes NFS mount fail
Status: Closed Feedback Timeout
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: CURRENT
Hardware: amd64 Any
: --- Affects Only Me
Assignee: freebsd-net (Nobody)
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-03-26 15:13 UTC by Beeblebrox
Modified: 2017-07-12 10:57 UTC (History)
0 users

See Also:

Attachments
single packet from Wireshark dump (12.01 KB, text/plain)
2015-03-26 15:13 UTC, Beeblebrox 		no flags Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description Beeblebrox 2015-03-26 15:13:26 UTC 
Created attachment 154831 [details]
single packet from Wireshark dump

I'm PXE/diskless booting a Samsung RS40 Laptop. The Diskless root normally gets mounted by clients as V3 and read-only.

* This is the only NIC among my clients displaying this problem.
* The client gets to the NFS_mount stage, then the if_msk interface keeps getting toggled up and down, without being able to mount the NFS root.
* Wireshark warns of TCP fragment "New fragment overlaps old data". Attached single packet as text from Wireshark dump.

Is this an msk(4) problem or some screw-up on my end?