Changeset e3038b4 in mainline for kernel/arch/ppc32/src/mm/tlb.c

Timestamp:

2010-06-28T22:45:51Z (14 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

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

Children:

49eb681

Parents:

05e3cb8 (diff), e4a4b44 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge unified panic architecture (Phase 1).

Note that this is still work in progress as there are the following sharp edges:

• imprecise detection of read/write accesses on some architectures
• missing or imperfect capability to print stack traces on some architectures
• istate_t on some architectures may contain too little valuable information
• basically all trap frames need to be reorganized to look like a normal stack frame on the stack trace so that there are no missing frames
• panic_common() could print more information about the current context such as the task name, thread name, ASID etc.
• functions that call panic_*() should be protected against inlining to avoid missing or confusing stack frames in the stack trace

File:

• kernel/arch/ppc32/src/mm/tlb.c (modified) (1 diff)

kernel/arch/ppc32/src/mm/tlb.c

@@ -111 +111 @@
 static void pht_refill_fail(uintptr_t badvaddr, istate_t *istate)
 {
-        const char *symbol = symtab_fmt_name_lookup(istate->pc);
-        const char *sym2 = symtab_fmt_name_lookup(istate->lr);
-        
-        fault_if_from_uspace(istate,
-            "PHT Refill Exception on %p.", badvaddr);
-        panic("%p: PHT Refill Exception at %p (%s<-%s).", badvaddr,
-            istate->pc, symbol, sym2);
+        fault_if_from_uspace(istate, "PHT Refill Exception on %p.", badvaddr);
+        panic_memtrap(istate, PF_ACCESS_READ, badvaddr,
+            "PHT Refill Exception.");
 }