diff options
Diffstat (limited to 'mm/kfence/report.c')
| -rw-r--r-- | mm/kfence/report.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/mm/kfence/report.c b/mm/kfence/report.c index 4b891dd75650..f93a7b2a338b 100644 --- a/mm/kfence/report.c +++ b/mm/kfence/report.c @@ -9,6 +9,7 @@ #include <linux/kernel.h> #include <linux/lockdep.h> +#include <linux/math.h> #include <linux/printk.h> #include <linux/sched/debug.h> #include <linux/seq_file.h> @@ -100,6 +101,13 @@ static void kfence_print_stack(struct seq_file *seq, const struct kfence_metadat bool show_alloc) { const struct kfence_track *track = show_alloc ? &meta->alloc_track : &meta->free_track; + u64 ts_sec = track->ts_nsec; + unsigned long rem_nsec = do_div(ts_sec, NSEC_PER_SEC); + + /* Timestamp matches printk timestamp format. */ + seq_con_printf(seq, "%s by task %d on cpu %d at %lu.%06lus:\n", + show_alloc ? "allocated" : "freed", track->pid, + track->cpu, (unsigned long)ts_sec, rem_nsec / 1000); if (track->num_stack_entries) { /* Skip allocation/free internals stack. */ @@ -126,15 +134,14 @@ void kfence_print_object(struct seq_file *seq, const struct kfence_metadata *met return; } - seq_con_printf(seq, - "kfence-#%td [0x%p-0x%p" - ", size=%d, cache=%s] allocated by task %d:\n", - meta - kfence_metadata, (void *)start, (void *)(start + size - 1), size, - (cache && cache->name) ? cache->name : "<destroyed>", meta->alloc_track.pid); + seq_con_printf(seq, "kfence-#%td: 0x%p-0x%p, size=%d, cache=%s\n\n", + meta - kfence_metadata, (void *)start, (void *)(start + size - 1), + size, (cache && cache->name) ? cache->name : "<destroyed>"); + kfence_print_stack(seq, meta, true); if (meta->state == KFENCE_OBJECT_FREED) { - seq_con_printf(seq, "\nfreed by task %d:\n", meta->free_track.pid); + seq_con_printf(seq, "\n"); kfence_print_stack(seq, meta, false); } } |