# Re: tg3 crashes under high load, when using 100Mbits

- From: Satish Baddipadige \<hidden\>
- Date: 2018-03-20 06:13:03 
- List: netdev
- Page: https://ratatoskr.run/netdev/2018/03/5239969
- Thread: https://ratatoskr.run/netdev/2018/03/5239969/t.md

```text
On Thu, Feb 15, 2018 at 7:37 PM, Siva Reddy Kallam
[ref] wrote:
> On Mon, Feb 12, 2018 at 10:59 AM, Siva Reddy Kallam
> [ref] wrote:
>> On Fri, Feb 9, 2018 at 10:41 AM, Kai Heng Feng
>> [ref] wrote:
>>> Hi Broadcom folks,
>>>
>>> We are now enabling a new platform with tg3 nic, unfortunately we observed
>>> the bug [1] that dated back to 2015.
>>> I tried commit 4419bb1cedcd ("tg3: Add workaround to restrict 5762 MRRS to
>>> 2048”) but it does’t work.
>>>
>>> Do you have any idea how to solve the issue?
>>>
>>> [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1447664
>>>
>>> Kai-Heng
>>>
>> Thank you for reporting. We will check and update you.
> With link aware mode, the clock speed could be slow and boot code does not
> complete within the expected time with lower link speeds. Need to override
> and the clock in driver. We are checking the feasibility of adding
> this in driver or firmware.

Hi Kai-Heng,

Can you please test the attached patch?

Thanks,
Satish
```

## Attachments

- [tg3\_5762\_clock\_override.patch](https://ratatoskr.run/netdev/2018/03/5239969/attachment/0) (application/octet-stream, 729 bytes)