======================================
| make: Leaving directory '/home/virtme/testing-22/tools/testing/selftests'
| xx__-> echo $?
| 0
| xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
| xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
unreferenced object 0xffff88800564d7a0 (size 32):
comm "softirq", pid 0, jiffies 4294795291
hex dump (first 32 bytes):
00 7f fe 12 80 88 ff ff c0 c6 45 ac ff ff ff ff  ..........E.....
c8 ec c6 0b 80 88 ff ff cc cc cc cc cc cc cc cc  ................
backtrace (crc 92eee525):
__kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4119 mm/slub.c:4164 mm/slub.c:4320) 
kmem_cache_free (mm/slub.c:2306 mm/slub.c:4609 mm/slub.c:4711) 
inet_twsk_free (net/ipv4/inet_timewait_sock.c:79) 
call_timer_fn (kernel/time/timer.c:1789) 
__run_timers (kernel/time/timer.c:1841 kernel/time/timer.c:2414) 
run_timer_softirq (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435 kernel/time/timer.c:2445) 
handle_softirqs (kernel/softirq.c:561) 
run_ksoftirqd (kernel/softirq.c:418 kernel/softirq.c:951 kernel/softirq.c:942) 
smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
kthread (kernel/kthread.c:464) 
ret_from_fork (arch/x86/kernel/process.c:148) 


Finger prints:
__kmalloc_cache_noprof:kmem_cache_free:inet_twsk_free:call_timer_fn:__run_timers