Messages in this thread Patch in this message |  | | Date | Fri, 26 Jul 2019 23:19:43 +0200 | From | Thomas Gleixner <> | Subject | [patch 7/8] x86/dumpstack: Indicate PREEMPT_RT in dumps |
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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> --- arch/x86/kernel/dumpstack.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-)
--- 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" : "",
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