======================================
| 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 0xffff888009a6ace0 (size 32):
comm "softirq", pid 0, jiffies 4294807555
hex dump (first 32 bytes):
48 2a fb 05 80 88 ff ff f0 bf a6 8d ff ff ff ff  H*..............
58 d6 80 0a 80 88 ff ff cc cc cc cc cc cc cc cc  X...............
backtrace (crc 3c2f55f1):
__kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4142 mm/slub.c:4187 mm/slub.c:4344) 
kmem_cache_free (mm/slub.c:2329 mm/slub.c:4633 mm/slub.c:4735) 
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:153) 
ret_from_fork_asm (arch/x86/entry/entry_64.S:258) 
unreferenced object 0xffff888009a6a020 (size 32):
comm "softirq", pid 0, jiffies 4294807555
hex dump (first 32 bytes):
90 9c 66 1b 80 88 ff ff f0 bf a6 8d ff ff ff ff  ..f.............
28 d3 80 0a 80 88 ff ff cc cc cc cc cc cc cc cc  (...............
backtrace (crc 6d3065a6):
__kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4142 mm/slub.c:4187 mm/slub.c:4344) 
kmem_cache_free (mm/slub.c:2329 mm/slub.c:4633 mm/slub.c:4735) 
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:153) 


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