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** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1860320
Title:
[hns3-0120]pad the short frame before sending to the hardware
Status in kunpeng920:
In Progress
Status in kunpeng920 ubuntu-18.04 series:
In Progress
Status in kunpeng920 ubuntu-18.04-hwe series:
In Progress
Status in kunpeng920 upstream-kernel series:
Fix Committed
Status in linux package in Ubuntu:
Incomplete
Status in linux source package in Bionic:
In Progress
Bug description:
The hardware can not handle short frames below or equal to 32
bytes.
[Impact]
The system may hang or endless event log in /var/log/syslog
[Fix]
Cherry-pick or backport the upstream fix
36c67349a1a1c88b9cf11d7ca7762ababdb38867 net: hns3: pad the short frame before
sending to the hardware
[Test Case]
Send a frame less than 33 bytes.
[Regression Risk]
Low, the patch is only specific to the hns3 driver.
====== Original Bug Description ======
[Bug Description]
The hardware can not handle short frames below or equal to 32
bytes according to the hardware user manual, and it will trigger
a RAS error when the frame's length is below 33 bytes.
[Steps to Reproduce]
1.send a frame less than 33 bytes.
[Actual Results]
a RAS occurs
[Expected Results]
no RAS
[Reproducibility]
Inevitably
[Additional information]
Hardware: D06
Firmware: NA
Kernel: NA
[Resolution]
pads the SKB when skb->len is below 33 bytes before sending it to hardware.
net: hns3: pad the short frame before sending to the hardware
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