======================================
| 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 0xffff8880083c69e0 (size 32):
comm "softirq", pid 0, jiffies 4294832294
hex dump (first 32 bytes):
90 5c b8 10 80 88 ff ff 70 74 29 88 ff ff ff ff  .......pt).....
c8 6c c2 0e 80 88 ff ff cc cc cc cc cc cc cc cc  .l..............
backtrace (crc 67c32103):
__kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4155 mm/slub.c:4200 mm/slub.c:4357) 
kmem_cache_free (mm/slub.c:2342 mm/slub.c:4646 mm/slub.c:4748) 
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_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
run_timer_softirq (kernel/time/timer.c:2446) 
handle_softirqs (kernel/softirq.c:579) 
run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
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 0xffff8880059eac20 (size 32):
comm "softirq", pid 0, jiffies 4294836436
hex dump (first 32 bytes):
40 55 2d 12 80 88 ff ff 70 74 29 88 ff ff ff ff  @U-.....pt).....
90 71 c2 0e 80 88 ff ff cc cc cc cc cc cc cc cc  .q..............
backtrace (crc d5499ac7):
__kmalloc_cache_noprof (./include/linux/kmemleak.h:43 mm/slub.c:4155 mm/slub.c:4200 mm/slub.c:4357) 
kmem_cache_free (mm/slub.c:2342 mm/slub.c:4646 mm/slub.c:4748) 
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_base (kernel/time/timer.c:2427 kernel/time/timer.c:2418 kernel/time/timer.c:2435) 
run_timer_softirq (kernel/time/timer.c:2446) 
handle_softirqs (kernel/softirq.c:579) 
run_ksoftirqd (kernel/softirq.c:436 kernel/softirq.c:969 kernel/softirq.c:960) 
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