Linux kernel bug fix: printk/nmi: Prevent deadlock when accessing the main log buffer in NMI
Subsystem: kernel (kernel/printk/printk_safe.c)
Bug type: deadlock, severity: critical
Keywords: deadlock
Files changed: include/linux/printk.h;kernel/printk/internal.h;kernel/printk/printk_safe.c;kernel/trace/trace.c;lib/nmi_backtrace.c
Introduced by Petr Mladek on 2017-05-19 14:42:19 +0200; fixed by Petr Mladek on 2018-07-09 14:10:40 +0200 (lifetime: 415 days)