======================================
| make[1]: Leaving directory '/home/virtme/testing-22/tools/testing/selftests/drivers/net/hw'
| 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
unreferenced object 0xffff888008da8b60 (size 32):
comm "softirq", pid 0, jiffies 4294783028
hex dump (first 32 bytes):
b0 f7 96 27 80 88 ff ff c0 c6 a5 ae ff ff ff ff  ...'............
08 40 e5 15 80 88 ff ff cc cc cc cc cc cc cc cc  .@..............
backtrace (crc 74c7d6bd):
__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) 
ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
| smpboot_thread_fn (kernel/smpboot.c:164 (discriminator 3)) 
| kthread (kernel/kthread.c:464) 
| ret_from_fork (arch/x86/kernel/process.c:148) 
| ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
| xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
unreferenced object 0xffff888008da8b60 (size 32):
comm "softirq", pid 0, jiffies 4294783028
hex dump (first 32 bytes):
b0 f7 96 27 80 88 ff ff c0 c6 a5 ae ff ff ff ff  ...'............
08 40 e5 15 80 88 ff ff cc cc cc cc cc cc cc cc  .@..............
backtrace (crc 74c7d6bd):
__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:
smpboot_thread_fn:kthread:ret_from_fork:ret_from_fork_asm:__kmalloc_cache_noprof
__kmalloc_cache_noprof:kmem_cache_free:inet_twsk_free:call_timer_fn:__run_timers