Re: kern/57187

[Jim Spath <jspath55%gmail.com@localhost>]

The following reply was made to PR kern/57187; it has been noted by GNATS.

From: Jim Spath <jspath55%gmail.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/57187
Date: Mon, 13 Feb 2023 11:06:29 -0500

 On 26-Jan-2023, I moved the ethernet adapters on two Raspberry Pi Zero
 2W boards. Since that time, the original panic conditions recurred on
 the board that had the issue earlier. There have been several panics
 and reboots:
 
 Jan 26 14:27:32 a1 /netbsd: [ 240063.8544471] Skipping crash dump on
 recursive panic
 Feb  9 16:09:53 a1 /netbsd: [ 63029.5034708] Skipping crash dump on
 recursive panic
 Feb  9 16:11:14 a1 /netbsd: [ 2510.5959411] Skipping crash dump on
 recursive panic
 Feb  9 18:22:39 a1 /netbsd: [ 4258.5786973] Skipping crash dump on
 recursive panic
 Feb 11 13:07:44 a1 /netbsd: [ 157004.8946593] Skipping crash dump on
 recursive panic
 Feb 13 05:15:39 a1 /netbsd: [ 141185.3016845] Skipping crash dump on
 recursive panic
 
 While the Raspberry Pi boards are the same model the ethernet USB
 adapters differ. I noticed those adapters are recognized as different
 flavors during boot:
 
 Jan 26 14:27:32 a1 /netbsd: [   3.0003850] rgephy0 at ure0 phy 0:
 RTL8251 1000BASE-T media interface, rev. 0
 Jan 26 17:55:13 a1 /netbsd: [   2.9941480] rlphy0 at ure0 phy 0:
 RTL8201E 10/100 media interface, rev. 2
 Jan 27 20:16:13 a1 /netbsd: [   2.9964697] rlphy0 at ure0 phy 0:
 RTL8201E 10/100 media interface, rev. 2
 Feb  8 23:06:33 a1 /netbsd: [   2.9959231] rgephy0 at ure0 phy 0:
 RTL8251 1000BASE-T media interface, rev. 0
 
 The adapter on the system that panics is the RTL8251..
 
 Feb 13 05:15:39 a1 /netbsd: [   3.1976118] rgephy0 at ure0 phy 0:
 RTL8251 1000BASE-T media interface, rev. 0
 Feb 13 05:15:39 a1 /netbsd: [   3.2076114] rgephy0: 10baseT,
 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT-FDX, auto
 
 When the RTL8201E based adapter is on the system I have not seen the panic.
 
 Jan 27 20:16:13 a1 /netbsd: [   2.9964697] rlphy0 at ure0 phy 0:
 RTL8201E 10/100 media interface, rev. 2
 Jan 27 20:16:13 a1 /netbsd: [   3.0164723] rlphy0: 10baseT,
 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
 
 Both systems are running the same netbsd evbarm kernel.
 
 I will continue looking to find out how the two installs differ, as
 the panics only occur on one.