Changeset e3038b4 in mainline for kernel/arch/amd64/src/mm/page.c

Timestamp:

2010-06-28T22:45:51Z (15 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/amd64/src/mm/page.c (modified) (1 diff)

kernel/arch/amd64/src/mm/page.c

@@ -89 +89 @@
         
         if (as_page_fault(page, access, istate) == AS_PF_FAULT) {
-                fault_if_from_uspace(istate, "Page fault: %p.", page);
-                decode_istate(n, istate);
-                panic("Page fault: %p", page);
+                fault_if_from_uspace(istate, "Page fault: %#x.", page);
+                panic_memtrap(istate, access, page, "Page fault.");
         }
 }