Changeset 85734b3 in rtems

Timestamp:

08/31/98 22:53:42 (25 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

de9edc4

Parents:

90c60f7

Message:

Patch from Eric Norum <eric@…>:

I think I figured out why rtems_panic was locking up instead of
shutting down the executive and returning to the code that called
boot_card().

Later on there is code to print some messages on the standard error
stream, a recursive call back to rtems_verror (through rtems_error)
and finally a call to _exit().

I think that the _Thread_Disable_dispatch() is preventing the final
context switch back to the boot_card() code. Does this sound right
to you?

Files:

• c/src/exec/libcsupport/src/error.c (modified) (1 diff)
• c/src/lib/libc/error.c (modified) (1 diff)
• c/src/lib/libmisc/error/error.c (modified) (1 diff)
• c/src/libmisc/error/error.c (modified) (1 diff)
• cpukit/libcsupport/src/error.c (modified) (1 diff)

c/src/exec/libcsupport/src/error.c

@@ -116 +116 @@
     if (error_flag & RTEMS_ERROR_PANIC)
     {
-        rtems_panic_in_progress++;
-
-        /* disable task switches */
-        _Thread_Disable_dispatch();
+        if (rtems_panic_in_progress++)
+            _Thread_Disable_dispatch();       /* disable task switches */
 
         /* don't aggravate things */

c/src/lib/libc/error.c

@@ -116 +116 @@
     if (error_flag & RTEMS_ERROR_PANIC)
     {
-        rtems_panic_in_progress++;
-
-        /* disable task switches */
-        _Thread_Disable_dispatch();
+        if (rtems_panic_in_progress++)
+            _Thread_Disable_dispatch();       /* disable task switches */
 
         /* don't aggravate things */

c/src/lib/libmisc/error/error.c

@@ -116 +116 @@
     if (error_flag & RTEMS_ERROR_PANIC)
     {
-        rtems_panic_in_progress++;
-
-        /* disable task switches */
-        _Thread_Disable_dispatch();
+        if (rtems_panic_in_progress++)
+            _Thread_Disable_dispatch();       /* disable task switches */
 
         /* don't aggravate things */

c/src/libmisc/error/error.c

@@ -116 +116 @@
     if (error_flag & RTEMS_ERROR_PANIC)
     {
-        rtems_panic_in_progress++;
-
-        /* disable task switches */
-        _Thread_Disable_dispatch();
+        if (rtems_panic_in_progress++)
+            _Thread_Disable_dispatch();       /* disable task switches */
 
         /* don't aggravate things */

cpukit/libcsupport/src/error.c

@@ -116 +116 @@
     if (error_flag & RTEMS_ERROR_PANIC)
     {
-        rtems_panic_in_progress++;
-
-        /* disable task switches */
-        _Thread_Disable_dispatch();
+        if (rtems_panic_in_progress++)
+            _Thread_Disable_dispatch();       /* disable task switches */
 
         /* don't aggravate things */