gem5: arm linux kernel bisection result and script

README.adoc

@@ -7342,6 +7342,8 @@ git -C linux checkout v4.16
 git -C linux checkout -
 ....
 
+Bisected down to Linux kernel commit link:https://github.com/torvalds/linux/commit/c5e1035c9687025373b7c48a08efb37f5329916b[c5e1035c9687025373b7c48a08efb37f5329916b].
+
 If we check out gem5 to a previous revision 60600f09c25255b3c8f72da7fb49100e2682093a, which is when I first noticed that v4.17 was not working, then there is another error instead:
 
 ....
@@ -9490,6 +9492,8 @@ git submodule update
 rm -rf out/arm/buildroot/build/host-qemu-custom.bisect/
 ....
 
+An example of Linux kernel commit bisection on gem5 boots can be found at: link:linux-bisect-boot-gem5[].
+
 ==== Sanity checks
 
 Basic C and C++ hello worlds:

linux-bisect-boot-gem5

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+set -eu
+cd ..
+# Rebuilds were failing without this.
+rm -rf out/arm/buildroot/build/linux-custom.bisect/
+./build -aa -L bisect
+./run -aa -E 'm5 exit' -L bisect -gu