tree 0b4c1af86e766726ba75873812715706e4044086
parent 21aa9280b9f4e9e68d3fa8990df6c9d7fd71f994
author Arjan van de Ven <arjan@linux.intel.com> 1201291713 +0100
committer Ingo Molnar <mingo@elte.hu> 1201291713 +0100

debug: track and print last unloaded module in the oops trace

Based on a suggestion from Andi:

 In various cases, the unload of a module may leave some bad state around
 that causes a kernel crash AFTER a module is unloaded; and it's then hard
 to find which module caused that.

This patch tracks the last unloaded module, and prints this as part of the
module list in the oops trace.

Right now, only the last 1 module is tracked; I expect that this is enough
for the vast majority of cases where this information matters; if it turns
out that tracking more is important, we can always extend it to that.

[ mingo@elte.hu: build fix ]

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>