linux-kernel - Re: scheduling while atomic & hang.

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Date:	Wed, 10 Jul 2013 16:54:34 -0400
From:	"J. Bruce Fields" <bfields@...ldses.org>
To:	Dave Jones <davej@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Anvin <hpa@...or.com>
Subject: Re: scheduling while atomic & hang.

On Thu, Jul 04, 2013 at 03:49:02AM -0400, Dave Jones wrote:
> I don't use the auto config, because I end up filling up /boot
> unless I go through and clean them out by hand every time I install
> a new one (which I do probably a dozen or so times a day).
> Is there some easy way to prune old builds I'm missing ?

I run this by hand every now and then.  I'm probably doing it all wrong.

--b.

#!/bin/bash

# because I use CONFIG_LOCALVERSION_AUTO, not the same version again and
# again, /boot and /lib/modules/ eventually fill up.
# Dumb script to purge that stuff:

ssh "root@$1" '

for f in $(ls /lib/modules); do
        if rpm -qf "/lib/modules/$f" >/dev/null; then
                echo "keeping $f (installed from rpm)"
        elif [ $(uname -r) = "$f" ]; then
                echo "keeping $f (running kernel) "
        else
                echo "removing $f"
                rm -f "/boot/initramfs-$f.img" "/boot/System.map-$f"
                rm -f "/boot/vmlinuz-$f"   "/boot/config-$f"
                rm -rf "/lib/modules/$f"
                new-kernel-pkg --remove $f
        fi
done
'
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