x86/dumpstack: Use uniform "Oops: " prefix for die() messages

panic() prints a uniform prompt: "Kernel panic - not syncing:",
but die() messages don't have any of that, the message is the
raw user-defined message with no prefix.

There's companies that collect thousands of die() messages per week,
but w/o a prompt in dmesg, it's hard to write scripts to collect and
analize the reasons.

Add a uniform "Oops:" prefix like other architectures.

[ mingo: Rewrote changelog. ]

Signed-off-by: Alex Shi <alexs@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20240327024419.471433-1-alexs@kernel.org

diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index 44a91ef5a23b8e20247fd82d03aa2e046c147426..a7d562697e50e48b643182e9dd664ef3f83c8a85 100644 (file)
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -405,8 +405,8 @@ static void __die_header(const char *str, struct pt_regs *regs, long err)
                pr = IS_ENABLED(CONFIG_PREEMPT_RT) ? " PREEMPT_RT" : " PREEMPT";
 
        printk(KERN_DEFAULT
-              "%s: %04lx [#%d]%s%s%s%s%s\n", str, err & 0xffff, ++die_counter,
-              pr,
+              "Oops: %s: %04lx [#%d]%s%s%s%s%s\n", str, err & 0xffff,
+              ++die_counter, pr,
               IS_ENABLED(CONFIG_SMP)     ? " SMP"             : "",
               debug_pagealloc_enabled()  ? " DEBUG_PAGEALLOC" : "",
               IS_ENABLED(CONFIG_KASAN)   ? " KASAN"           : "",