Changeset decfbe56 in mainline

Timestamp:

2010-06-26T21:42:59Z (15 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

cae5404

Parents:

fc81981

Message:

be paranoid and update exception statistics in a critical section
(for the very unlikely case that there are two exception handlers running on two CPUs)

File:

• kernel/generic/src/interrupt/interrupt.c (modified) (1 diff)

kernel/generic/src/interrupt/interrupt.c

@@ -143 +143 @@
         uint64_t end_cycle = get_cycle();
         
+        irq_spinlock_lock(&exctbl_lock, false);
         exc_table[n].cycles += end_cycle - begin_cycle;
         exc_table[n].count++;
+        irq_spinlock_unlock(&exctbl_lock, false);
         
         /* Do not charge THREAD for exception cycles */