Commit fb70b5888b70b0b50f738fbfc019445493112eb1
1 parent
16cdc628c3
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debug_core: stop rcu warnings on kernel resume
When returning from the kernel debugger reset the rcu jiffies_stall value to prevent the rcu stall detector from sending NMI events which invoke a stack dump for each cpu in the system. Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Showing 1 changed file with 2 additions and 0 deletions Side-by-side Diff
kernel/debug/debug_core.c
| ... | ... | @@ -47,6 +47,7 @@ |
| 47 | 47 | #include <linux/pid.h> |
| 48 | 48 | #include <linux/smp.h> |
| 49 | 49 | #include <linux/mm.h> |
| 50 | +#include <linux/rcupdate.h> | |
| 50 | 51 | |
| 51 | 52 | #include <asm/cacheflush.h> |
| 52 | 53 | #include <asm/byteorder.h> |
| ... | ... | @@ -474,6 +475,7 @@ |
| 474 | 475 | { |
| 475 | 476 | touch_softlockup_watchdog_sync(); |
| 476 | 477 | clocksource_touch_watchdog(); |
| 478 | + rcu_cpu_stall_reset(); | |
| 477 | 479 | } |
| 478 | 480 | |
| 479 | 481 | static int kgdb_cpu_enter(struct kgdb_state *ks, struct pt_regs *regs) |