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| author | Thomas Gleixner <tglx@linutronix.de> | 2019-07-27 00:19:43 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-07-31 20:03:36 +0300 |
| commit | cb376c26971ff54f25980ec1f0ae2f06d6a69df0 (patch) | |
| tree | a810a78559113b7c847e2faded556eed333f38a6 | |
| parent | 48593975aeee548f25e256c515fd1d1e3fb2cc20 (diff) | |
| download | linux-cb376c26971ff54f25980ec1f0ae2f06d6a69df0.tar.xz | |
x86/dumpstack: Indicate PREEMPT_RT in dumps
Stack dumps print whether the kernel has preemption enabled or not. Extend
it so a PREEMPT_RT enabled kernel can be identified.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20190726212124.699136351@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
| -rw-r--r-- | arch/x86/kernel/dumpstack.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c index 2b5886401e5f..e07424e19274 100644 --- a/arch/x86/kernel/dumpstack.c +++ b/arch/x86/kernel/dumpstack.c @@ -367,13 +367,18 @@ NOKPROBE_SYMBOL(oops_end); int __die(const char *str, struct pt_regs *regs, long err) { + const char *pr = ""; + /* Save the regs of the first oops for the executive summary later. */ if (!die_counter) exec_summary_regs = *regs; + if (IS_ENABLED(CONFIG_PREEMPTION)) + 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, - IS_ENABLED(CONFIG_PREEMPT) ? " PREEMPT" : "", + pr, IS_ENABLED(CONFIG_SMP) ? " SMP" : "", debug_pagealloc_enabled() ? " DEBUG_PAGEALLOC" : "", IS_ENABLED(CONFIG_KASAN) ? " KASAN" : "", |