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authorBorislav Petkov <bp@suse.de>2019-04-21 20:35:24 +0200
committerIngo Molnar <mingo@kernel.org>2019-04-21 20:48:51 +0200
commitea2f8d60603efbd1cb4e193a593945a2fe24d264 (patch)
tree0f5050212fe4a52ff097ace44aee62da6c498007 /arch/x86/mm
parent18ea35c5ed9921867194a8efc2a0ac2d5a3c7d2a (diff)
downloadlinux-ea2f8d60603efbd1cb4e193a593945a2fe24d264.tar.bz2
x86/fault: Make fault messages more succinct
So we are going to be staring at those in the next years, let's make them more succinct. In particular: - change "address = " to "address: " - "-privileged" reads funny. It should be simply "kernel" or "user" - "from kernel code" reads funny too. "kernel mode" or "user mode" is more natural. An actual example says more than 1000 words, of course: [ 0.248370] BUG: kernel NULL pointer dereference, address: 00000000000005b8 [ 0.249120] #PF: supervisor write access in kernel mode [ 0.249717] #PF: error_code(0x0002) - not-present page Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: dave.hansen@linux.intel.com Cc: luto@kernel.org Cc: riel@surriel.com Cc: sean.j.christopherson@intel.com Cc: yu-cheng.yu@intel.com Link: http://lkml.kernel.org/r/20190421183524.GC6048@zn.tnic Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/fault.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 74c9204c5751..a0df19b0897d 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -630,13 +630,13 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code, unsigned long ad
}
if (address < PAGE_SIZE && !user_mode(regs))
- pr_alert("BUG: kernel NULL pointer dereference, address = %px\n",
+ pr_alert("BUG: kernel NULL pointer dereference, address: %px\n",
(void *)address);
else
- pr_alert("BUG: unable to handle page fault for address = %px\n",
+ pr_alert("BUG: unable to handle page fault for address: %px\n",
(void *)address);
- pr_alert("#PF: %s-privileged %s from %s code\n",
+ pr_alert("#PF: %s %s in %s mode\n",
(error_code & X86_PF_USER) ? "user" : "supervisor",
(error_code & X86_PF_INSTR) ? "instruction fetch" :
(error_code & X86_PF_WRITE) ? "write access" :