Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0630e45c887b3d3d8d6ad27af03ec4054926d635
Commit: 0630e45c887b3d3d8d6ad27af03ec4054926d635
Parent: fc1d4c9c3761ca8db52b647c6a4ba50771900a12
Author: Paul Mundt <[EMAIL PROTECTED]>
AuthorDate: Mon Jun 18 19:02:47 2007 +0900
Committer: Paul Mundt <[EMAIL PROTECTED]>
CommitDate: Mon Jun 18 19:02:47 2007 +0900
sh: Check oops_may_print() in unhandled fault.
Only print out pgd/pte data in the oops path if oops_may_print()
holds true. Follows the i386 implementation.
Signed-off-by: Paul Mundt <[EMAIL PROTECTED]>
---
arch/sh/mm/fault.c | 45 +++++++++++++++++++++++++++++----------------
1 files changed, 29 insertions(+), 16 deletions(-)
diff --git a/arch/sh/mm/fault.c b/arch/sh/mm/fault.c
index c878faa..0b3eaf6 100644
--- a/arch/sh/mm/fault.c
+++ b/arch/sh/mm/fault.c
@@ -32,7 +32,6 @@ asmlinkage void __kprobes do_page_fault(struct pt_regs *regs,
struct task_struct *tsk;
struct mm_struct *mm;
struct vm_area_struct * vma;
- unsigned long page;
int si_code;
siginfo_t info;
@@ -170,24 +169,38 @@ no_context:
* terminate things with extreme prejudice.
*
*/
- if (address < PAGE_SIZE)
- printk(KERN_ALERT "Unable to handle kernel NULL pointer
dereference");
- else
- printk(KERN_ALERT "Unable to handle kernel paging request");
- printk(" at virtual address %08lx\n", address);
- printk(KERN_ALERT "pc = %08lx\n", regs->pc);
- page = (unsigned long)get_TTB();
- if (page) {
- page = ((unsigned long *) page)[address >> PGDIR_SHIFT];
- printk(KERN_ALERT "*pde = %08lx\n", page);
- if (page & _PAGE_PRESENT) {
- page &= PAGE_MASK;
- address &= 0x003ff000;
- page = ((unsigned long *) __va(page))[address >>
PAGE_SHIFT];
- printk(KERN_ALERT "*pte = %08lx\n", page);
+
+ bust_spinlocks(1);
+
+ if (oops_may_print()) {
+ __typeof__(pte_val(__pte(0))) page;
+
+ if (address < PAGE_SIZE)
+ printk(KERN_ALERT "Unable to handle kernel NULL "
+ "pointer dereference");
+ else
+ printk(KERN_ALERT "Unable to handle kernel paging "
+ "request");
+ printk(" at virtual address %08lx\n", address);
+ printk(KERN_ALERT "pc = %08lx\n", regs->pc);
+ page = (unsigned long)get_TTB();
+ if (page) {
+ page = ((__typeof__(page) *) __va(page))[address >>
+ PGDIR_SHIFT];
+ printk(KERN_ALERT "*pde = %08lx\n", page);
+ if (page & _PAGE_PRESENT) {
+ page &= PAGE_MASK;
+ address &= 0x003ff000;
+ page = ((__typeof__(page) *)
+ __va(page))[address >>
+ PAGE_SHIFT];
+ printk(KERN_ALERT "*pte = %08lx\n", page);
+ }
}
}
+
die("Oops", regs, writeaccess);
+ bust_spinlocks(0);
do_exit(SIGKILL);
/*
-
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