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Re: NULL pointer dereference

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On 21.12.2020 04:16, Grzesiek Sójka wrote:
> On 12/19/20 9:57 PM, Alexander V. Makartsev wrote:
>> If this is recurring error, was it identical in terms of codes, trace 
>> and register data?
>
> Errors look similar but I'm not an expert. Some numbers are different.
>
> I think it started after installing HPE Ethernet 1Gb 4-port 331T 
> Adapter. This is server adapter end requires PCIe pin B5 and B6 
> covering to disconnect SMBus
>
That is an interesting bit of information. Why do you think it requires 
that and what is the reason behind it?

This network adapter uses "tg3" driver and its version (3.137) from 
kernel 4.19.0-13-amd64 could have problems according to HP advisory. [1]
You should check out support section of HPE web site, there could be 
firmware updates for your network adapter. [2]

If your server is not at remote location, you can temporarily blacklist 
"tg3" module to prevent it from loading and see if your system will 
still get similar errors without 331T adapter.


[1] 
https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US&docId=a00099659en_us
[2] 
https://support.hpe.com/hpesc/public/km/product/1013098027/Product#t=DriversandSoftware&sort=relevancy&layout=table&numberOfResults=25

-- 
With kindest regards, Alexander.

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NULL pointer dereference Grzesiek Sójka <pld@sojka.co> - 2020-12-19 17:20 +0100
  Re: NULL pointer dereference David Christensen <dpchrist@holgerdanske.com> - 2020-12-19 20:50 +0100
    Re: NULL pointer dereference Grzesiek Sójka <pld@sojka.co> - 2020-12-19 21:10 +0100
  Re: NULL pointer dereference "Alexander V. Makartsev" <avbetev@gmail.com> - 2020-12-19 22:00 +0100
    Re: NULL pointer dereference Grzesiek Sójka <pld@sojka.co> - 2020-12-21 00:20 +0100
      Re: NULL pointer dereference "Thomas Schmitt" <scdbackup@gmx.net> - 2020-12-21 12:40 +0100
      Re: NULL pointer dereference "Alexander V. Makartsev" <avbetev@gmail.com> - 2020-12-21 14:10 +0100
  Re: NULL pointer dereference Marko Randjelovic <markoran@eunet.rs> - 2020-12-20 22:30 +0100
    Re: NULL pointer dereference Grzesiek Sójka <pld@sojka.co> - 2020-12-21 00:20 +0100
      Re: NULL pointer dereference deloptes <deloptes@gmail.com> - 2020-12-21 01:00 +0100

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