NetBSD Problem Report #48738

From www@NetBSD.org  Sat Apr 12 10:13:11 2014
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Date: Sat, 12 Apr 2014 10:13:09 +0000 (UTC)
From: joachim.thiemnn@gmail.com
Reply-To: joachim.thiemnn@gmail.com
To: gnats-bugs@NetBSD.org
Subject: Upgrade of -current kernel on Raspberry Pi brakes running executables from previous version requiring reinstall
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>Number:         48738
>Category:       port-evbarm
>Synopsis:       Upgrade of -current kernel on Raspberry Pi brakes running executables from previous version requiring reinstall
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    port-evbarm-maintainer
>State:          closed
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Apr 12 10:15:00 +0000 2014
>Closed-Date:    Mon Oct 13 23:30:29 +0000 2014
>Last-Modified:  Mon Oct 13 23:30:29 +0000 2014
>Originator:     Joachim Thiemann
>Release:        6.99.40
>Organization:
Carl-von-Ossietzky University Oldenburg
>Environment:
NetBSD rpi 6.99.40 NetBSD 6.99.40 (RPI) #3: Thu Apr 10 14:59:51 CEST 2014  srcr@virt:/usr/obj/sys/arch/evbarm/compile/RPI evbarm
>Description:
Booting with a new kernel (6.99.38 or so; exact version unknown) resulted in a nonbooting system, even rescue binaries didn't work (init fails), using an userland around 6.99.28.

See thread "Current build of netbsd for rpi is unable to boot" on port-arm.

>How-To-Repeat:
Install a RPI system from March 2014, replace the kernel with one from at least Apr. 7th. Boot.
>Fix:
Either upgrade all of userland, or use kernel option COMPAT_NETBSD32.  The latter can still cause problems though, with dynamic libraries (I think).

>Release-Note:

>Audit-Trail:
From: Martin Husemann <martin@duskware.de>
To: gnats-bugs@NetBSD.org
Cc: 
Subject: Re: port-evbarm/48738: Upgrade of -current kernel on Raspberry Pi brakes running executables from previous version requiring reinstall
Date: Sat, 12 Apr 2014 18:40:33 +0200

 On Sat, Apr 12, 2014 at 10:15:00AM +0000, joachim.thiemnn@gmail.com wrote:
 > Either upgrade all of userland, or use kernel option COMPAT_NETBSD32.
 > The latter can still cause problems though, with dynamic libraries (I
 > think).

 Did you try COMPAT_NETBSD32?

 This should only help if you changed from an old "arm" install to "earm"
 now - which might need a bit more planning and library copying (and would
 make it no bug).

 If you have an old binary around still, you can check the ABI by running
 file on it. On my eabrm machine for example file /bin/sh says:

 /bin/sh: ELF 32-bit LSB executable, ARM, EABI5 version 1 (SYSV), dynamically linked (uses shared libs), for NetBSD 6.99.40, compiled for: earmv4, not stripped

 Another possible issue are broken binaries with corrupt ELF notes (I've seen
 that on test machines I updated early to gcc 4.8 - not sure if this ever
 happend in the official builds). Symptom here would be a corrupt binary
 that old kernels erroneously accepted, but newer kernels reject. You
 can verify this by running readelf -n on the binary. Again /bin/sh as
 an example:

 Notes at offset 0x00000128 with length 0x00000018:
   Owner                 Data size       Description
   NetBSD        0x00000004      IDENT 699004000 (6.99.40)

 Notes at offset 0x00000140 with length 0x00000014:
   Owner                 Data size       Description
   PaX                  0x00000004       Unknown note type: (0x00000003)

 Notes at offset 0x00000154 with length 0x0000001c:
   Owner                 Data size       Description
   NetBSD        0x00000007      MARCH <earmv4>

 (the last one will be different on RPi).

 The corrupt binaries cause readelf to complain in this output.

 Martin

State-Changed-From-To: open->feedback
State-Changed-By: skrll@NetBSD.org
State-Changed-When: Tue, 02 Sep 2014 11:44:26 +0000
State-Changed-Why:
I think this is fixed. OK to close?


State-Changed-From-To: feedback->closed
State-Changed-By: dholland@NetBSD.org
State-Changed-When: Mon, 13 Oct 2014 23:30:29 +0000
State-Changed-Why:
Feedback mail is bouncing.


>Unformatted:

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