From: Matthias Kruk <m@m10k.eu>
Date: Sun, 5 Jan 2020 11:28:07 +0000 (+0900)
Subject: Add remark about signal handling in user-mode
X-Git-Url: https://git.corax.cc/?a=commitdiff_plain;h=9d3ac4a0cbc281fd43045e2771d61b8e6abf2a57;p=corax

Add remark about signal handling in user-mode
---

diff --git a/kernel/arch/interrupt.c b/kernel/arch/interrupt.c
index 37b7537..40240fd 100644
--- a/kernel/arch/interrupt.c
+++ b/kernel/arch/interrupt.c
@@ -209,6 +209,14 @@ void _exc_handle(stack_frame_t ctx)
 			break;
 		}
 
+		/*
+		 * FIXME: Put stack into a known state before executing certain handlers
+		 *
+		 * Some of the above exceptions may indicate a corrupted stack, and calling
+		 * the handler in user-mode may cause another exception. This may lead to
+		 * processes that are stuck in an infinite-loop and that can't be killed.
+		 */
+
 		/*
 		 * Deliver the signal to the currently executing task
 		 */