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Bug#856049: marked as done (e1000: EEPROM write failed on 82540EM)

Your message dated Sat, 15 May 2021 05:06:24 -0700 (PDT)
with message-id <609fb940.1c69fb81.488e4.ddf2@mx.google.com>
and subject line Closing this bug (BTS maintenance for src:linux bugs)
has caused the Debian Bug report #856049,
regarding e1000: EEPROM write failed on 82540EM
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
856049: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=856049
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: ethtool
Version: 1:4.8-1
Severity: normal

Dear maintainer,

The EEPROM of my Ethernet NIC has been flushed for some unknown reason.
I would like to use ethtool to restore my EEPROM (fortunately I have a
dump).

Here is one simple "test command" I tried and which should be valid
according to the manpage and examples found on the net:
# ethtool --change-eeprom enp2s1 magic 0x100e8086 offset 0x10 length 1 \
value 0xff

But unfortunately, I always get this error:
"Cannot set EEPROM data: Operation not permitted"

I am probably missing something, in which case please apologize, but
maybe it is really a bug/something we can not do anymore with recent
kernels? Maybe what I am probably be missing should be written in the
manpage or in /usr/share/doc/ethtool/...?

Do not hesitate to ask if i can provide more information.

Best regards,
Yvan


# ethtool -e enp2s1
Offset		Values
------		------
0x0000:		00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0010:		00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0020:		00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0030:		00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0040:		00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0050:		00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0060:		00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0x0070:		00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00


# lspci -vnn:
...
02:01.0 Ethernet controller [0200]: Intel Corporation 82540EM Gigabit
Ethernet Controller [8086:100e] (rev 03)
	Subsystem: Intel Corporation 82540EM Gigabit Ethernet
Controller [8086:100e]
	Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 11
	Memory at c0220000 (64-bit, non-prefetchable) [size=128K]
	Memory at c0200000 (64-bit, non-prefetchable) [size=64K]
	I/O ports at 8000 [size=64]
	[virtual] Expansion ROM at c0210000 [disabled] [size=64K]
	Capabilities: [dc] Power Management version 2
	Capabilities: [e4] PCI-X non-bridge device
	Capabilities: [f0] MSI: Enable- Count=1/1 Maskable- 64bit+
	Kernel driver in use: e1000
	Kernel modules: e1000


The dump I would like to restore at the end (I just need to change the
MAC address):
Offset		Values
------		------
0x0000:		00 01 6c cb 09 3c 00 0b ff ff ff ff ff ff ff ff 
0x0010:		00 00 00 00 0b 66 49 05 14 10 1e 10 86 80 a5 b1 
0x0020:		ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
0x0030:		ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff 
0x0040:		cf 00 61 78 0b 14 00 00 c8 04 ff ff ff ff ff ff 
0x0050:		ff ff ff ff ff ff ff ff ff ff ff ff ff ff 02 06 
0x0060:		2c 01 00 40 11 12 ff ff ff ff ff ff ff ff ff ff 
0x0070:		ff ff ff ff ff ff ff ff ff ff ff ff ff ff 7c fe 


You will also find attached the strace for the above command.



-- System Information:
Debian Release: 9.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: i386 (i686)

Kernel: Linux 4.9.0-1-686 (SMP w/1 CPU core)
Locale: LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages ethtool depends on:
ii  libc6  2.24-9

ethtool recommends no packages.

ethtool suggests no packages.

-- no debconf information

Attachment: ethtool.strace
Description: Binary data

Attachment: pgpZi_NQe704f.pgp
Description: Signature digitale OpenPGP


--- End Message ---
--- Begin Message --- 
Hi

This bug was filed for a very old kernel or the bug is old itself
without resolution.

If you can reproduce it with

- the current version in unstable/testing
- the latest kernel from backports

please reopen the bug, see https://www.debian.org/Bugs/server-control
for details.

Regards,
Salvatore

--- End Message ---
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