Merge branch 'main' of https://github.com/PacktPublishing/Linux-Kernel-Programming_2E

Author: kaiwan

ch8/slab4_actualsz_wstg_plot/plot_graph.sh

@@ -82,11 +82,11 @@ hash gnuplot || {
 	exit 1
 }
 pgrep Xorg >/dev/null || {
-	echo "${name}: WARNING: are you sure you're running in a GUI? (no Xorg detected)"
+    pgrep Xwayland >/dev/null || {
+	echo "${name}: WARNING: are you sure you're running in a GUI? (no Xorg or Xwayland process detected)"
 	GUI_ENV=0
+    }
 }
-
 prep_datafile
 plotit
-
 exit 0

questions/ch3_qs_assignments.txt

@@ -20,10 +20,10 @@ in single-user mode (and then change the root password).
 
 4. (A bit advanced, for when you're feeling adventurous!) Refer ahead
 to Chapter 5, Writing Your First Kernel Module – LKMs Part 2, in
-the Configuring a debug kernel section. It details the kernel config options to
-be minimally set up for a very useful thing indeed – a debug kernel!
+the 'Configuring a debug kernel' section. It details the kernel config options
+to be minimally set up for a very useful thing indeed – a debug kernel!
 
 Running your code on a debug kernel can help you uncover hard-to-spot
-bugs and issues. Your job here is to configure another kernel with these
-debug options, then build and run it.
+bugs and issues. Your job here is to configure another 'debug kernel' with
+these debug config options, then build and boot from it.
 

solutions_to_assgn/ch3/solutions_ch3.txt

@@ -38,5 +38,7 @@ tree ${TMPD}
 then change the root password).
 A.
 --- Left as an exercise to the reader ---
+(Tip: described in some detail in Ch 3 / Experimenting with the GRUB prompt).
 
-(Described in some detail in Ch 3 / Doing a bit more on the GRUB prompt).
+4. <Qs 4 is also ...>
+--- Left as an exercise to the reader ---