Changeset 90dd8aee in mainline for kernel/generic/src/log/log.c

Timestamp:

2025-04-10T17:55:36Z (4 days ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

master

Children:

8165a7a, c0d814a

Parents:

c55ab66

git-author:

Jiří Zárevúcky <zarevucky.jiri@…> (2025-04-10 11:33:46)

git-committer:

Jiří Zárevúcky <zarevucky.jiri@…> (2025-04-10 17:55:36)

Message:

Introduce a console lock to prevent line splitting in kernel output

It is a common occurrence to see broken lines on screen or in serial
output due to bad timing. This is an attempt to prevent that without
breaking anything.

It could be considered a stopgap solution, since the whole console
stack deserves a better/faster implementation.

File:

• kernel/generic/src/log/log.c (modified) (2 diffs)

kernel/generic/src/log/log.c

@@ -151 +151 @@
 void log_begin(log_facility_t fac, log_level_t level)
 {
+        console_lock();
         spinlock_lock(&log_lock);
         spinlock_lock(&kio_lock);
@@ -186 +187 @@
         kio_update(NULL);
         log_update(NULL);
+        console_unlock();
 }