Changeset a4e23f8c in mainline

Timestamp:

2013-02-20T21:36:04Z (12 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

2f2beb4

Parents:

d59c046

Message:

Hold the first task forever so that ipc_phone_0 is always valid.

File:

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

kernel/generic/src/main/kinit.c

@@ -250 +250 @@
                                     CAP_IO_MANAGER | CAP_IRQ_REG);
                                 
-                                if (!ipc_phone_0)
+                                if (!ipc_phone_0) {
                                         ipc_phone_0 = &programs[i].task->answerbox;
+                                        /*
+                                         * Hold the first task so that the
+                                         * ipc_phone_0 remains a valid pointer
+                                         * even if the first task exits for
+                                         * whatever reason.
+                                         */
+                                        task_hold(programs[i].task);
+                                }
                         }