linux-kernel - Re: [PATCH 1/4] sparc: fix accurate exception reporting in copy_{from_to}

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Message-ID: <89b55629-da5e-41a0-967d-12f6e0a90854@thejpster.org.uk>
Date: Wed, 3 Sep 2025 23:05:25 +0100
From: Jonathan Pallant <jp@...jpster.org.uk>
To: kernel@...rcher.dialup.fu-berlin.de
Cc: andreas@...sler.com, anthony.yznaga@...cle.com,
 glaubitz@...sik.fu-berlin.de, linux-kernel@...r.kernel.org,
 sparclinux@...r.kernel.org
Subject: Re: [PATCH 1/4] sparc: fix accurate exception reporting in
 copy_{from_to}_user for UltraSPARC

 > Fixes: cb736fdbb208 ("sparc64: Convert U1copy_{from,to}_user to 
accurate exception reporting.")
 > Signed-off-by: Michael Karcher <kernel@...rcher.dialup.fu-berlin.de>

Hi all,

I have a Sun Netra t1 (UltraSPARC-IIi at 440 MHz) which crashed a
lot running Linux 6.1.0-9-sparc64 from Debian sid. It couldn't even
complete an `apt-get upgrade` without locking up.

With glaubitz's assistance, I've now installed kernel
6.12.3-sparc64 with this patch and the machine is working much
better. I was able to install openssh-server and run a bunch of
tools that simply didn't work on the previous kernel.

Tested-by: Jonathan 'theJPster' Pallant <kernel@...jpster.org.uk> # on 
Sun Netra t1 (UltraSPARC-IIi)