Package: linux-image-5.6.14
Version: 5.6.14
Severity: important

Dear Maintainer,

   * What led up to the situation?

Noticed that the sky2 ethernet driver was flooding /var/log/messages like so:

Jul 18 15:03:06 nehalem kernel: [75100.182612] device eth0 entered promiscuous 
mode
Jul 18 15:03:08 nehalem kernel: [75102.108331] device eth0 left promiscuous mode
Jul 18 15:03:11 nehalem kernel: [75105.182616] device eth0 entered promiscuous 
mode
Jul 18 15:03:13 nehalem kernel: [75107.175461] device eth0 left promiscuous mode
Jul 18 15:03:16 nehalem kernel: [75110.222602] device eth0 entered promiscuous 
mode
Jul 18 15:03:18 nehalem kernel: [75112.181979] device eth0 left promiscuous mode

This will ping-pong forever without corrective action.

It can be stopped by enabling promiscuous mode on the interface, i.e. 'ifconfig 
eth0 promisc'. That however should
 not be necessary. By testing older kernels (and therefore older versions of 
the sky2 driver) I discovered that as
 of 4.9.2 and earlier this problem did not exist. At some point between 4.9.2 
and 5.6.14 changes to the driver
 introduced this problem.


-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.6.14 (SMP w/8 CPU cores)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_WARN, TAINT_OOT_MODULE
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), 
LANGUAGE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

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