make -C tools/testing/selftests TARGETS="drivers/net/hw" TEST_PROGS=devmemm.py TEST_GEN_PROGS="" run_tests make: Entering directory '/home/virtme/testing-22/tools/testing/selftests' make[1]: Entering directory '/home/virtme/testing-22/tools/testing/selftests/drivers/net/hw' make[1]: Nothing to be done for 'all'. make[1]: Leaving directory '/home/virtme/testing-22/tools/testing/selftests/drivers/net/hw' make[1]: Entering directory '/home/virtme/testing-22/tools/testing/selftests/drivers/net/hw' TAP version 13 1..1 # overriding timeout to 360 # selftests: drivers/net/hw: devmem.py # TAP version 13 # 1..1 # ok 1 devmem.check_rx # SKIP Test requires devmem support # # Totals: pass:0 fail:0 xfail:0 xpass:0 skip:1 error:0 ok 1 selftests: drivers/net/hw: devmem.py 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 0xffff888029a33240 (size 216): comm "softirq", pid 0, jiffies 4294865996 hex dump (first 32 bytes): 40 cc 0d 1b 80 88 ff ff 00 00 00 00 00 00 00 00 @............... 00 a0 8a 08 80 88 ff ff 00 00 00 00 00 00 00 00 ................ backtrace (crc 2ccd07cc): kmem_cache_alloc_bulk_noprof+0x119/0x170 napi_skb_cache_get+0x38a/0x610 __alloc_skb+0xe3/0x2e0 napi_alloc_skb+0x52/0x5c0 page_to_skb+0x321/0x9c0 receive_mergeable+0x26f/0xb50 receive_buf+0x2ad/0x460 virtnet_receive+0x49b/0x5d0 virtnet_poll+0x454/0x1050 __napi_poll.constprop.0+0xa2/0x460 net_rx_action+0x50d/0xcd0 handle_softirqs+0x1f6/0x5c0 run_ksoftirqd+0x33/0x60 smpboot_thread_fn+0x306/0x850 kthread+0x358/0x5d0 ret_from_fork+0x31/0x70 unreferenced object 0xffff88802891fbc0 (size 640): comm "softirq", pid 0, jiffies 4294866085 hex dump (first 32 bytes): 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk backtrace (crc d43efca6): kmem_cache_alloc_node_noprof+0x2b1/0x360 kmalloc_reserve+0x13e/0x240 __alloc_skb+0x110/0x2e0 napi_alloc_skb+0x52/0x5c0 page_to_skb+0x321/0x9c0 receive_mergeable+0x26f/0xb50 receive_buf+0x2ad/0x460 virtnet_receive+0x49b/0x5d0 virtnet_poll+0x454/0x1050 __napi_poll.constprop.0+0xa2/0x460 net_rx_action+0x50d/0xcd0 handle_softirqs+0x1f6/0x5c0 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0xe/0x20 sysvec_apic_timer_interrupt+0x78/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 unreferenced object 0xffff88801b0dcc40 (size 216): comm "softirq", pid 0, jiffies 4294866086 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 a0 8a 08 80 88 ff ff 00 00 00 00 00 00 00 00 ................ backtrace (crc 8f66e476): kmem_cache_alloc_noprof+0x2ad/0x350 build_skb+0x44/0x250 page_to_skb+0x15d/0x9c0 receive_mergeable+0x26f/0xb50 receive_buf+0x2ad/0x460 virtnet_receive+0x49b/0x5d0 virtnet_poll+0x454/0x1050 __napi_poll.constprop.0+0xa2/0x460 net_rx_action+0x50d/0xcd0 handle_softirqs+0x1f6/0x5c0 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0xe/0x20 sysvec_apic_timer_interrupt+0x78/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 unreferenced object 0xffff88802bbaf4c0 (size 640): comm "softirq", pid 0, jiffies 4294866086 hex dump (first 32 bytes): 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk backtrace (crc 8654ba84): kmem_cache_alloc_node_noprof+0x2b1/0x360 kmalloc_reserve+0x13e/0x240 __alloc_skb+0x110/0x2e0 napi_alloc_skb+0x52/0x5c0 page_to_skb+0x321/0x9c0 receive_mergeable+0x26f/0xb50 receive_buf+0x2ad/0x460 virtnet_receive+0x49b/0x5d0 virtnet_poll+0x454/0x1050 __napi_poll.constprop.0+0xa2/0x460 net_rx_action+0x50d/0xcd0 handle_softirqs+0x1f6/0x5c0 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0xe/0x20 sysvec_apic_timer_interrupt+0x78/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak unreferenced object 0xffff888029a33240 (size 216): comm "softirq", pid 0, jiffies 4294865996 hex dump (first 32 bytes): 40 cc 0d 1b 80 88 ff ff 00 00 00 00 00 00 00 00 @............... 00 a0 8a 08 80 88 ff ff 00 00 00 00 00 00 00 00 ................ backtrace (crc 2ccd07cc): kmem_cache_alloc_bulk_noprof+0x119/0x170 napi_skb_cache_get+0x38a/0x610 __alloc_skb+0xe3/0x2e0 napi_alloc_skb+0x52/0x5c0 page_to_skb+0x321/0x9c0 receive_mergeable+0x26f/0xb50 receive_buf+0x2ad/0x460 virtnet_receive+0x49b/0x5d0 virtnet_poll+0x454/0x1050 __napi_poll.constprop.0+0xa2/0x460 net_rx_action+0x50d/0xcd0 handle_softirqs+0x1f6/0x5c0 run_ksoftirqd+0x33/0x60 smpboot_thread_fn+0x306/0x850 kthread+0x358/0x5d0 ret_from_fork+0x31/0x70 unreferenced object 0xffff88802891fbc0 (size 640): comm "softirq", pid 0, jiffies 4294866085 hex dump (first 32 bytes): 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk backtrace (crc d43efca6): kmem_cache_alloc_node_noprof+0x2b1/0x360 kmalloc_reserve+0x13e/0x240 __alloc_skb+0x110/0x2e0 napi_alloc_skb+0x52/0x5c0 page_to_skb+0x321/0x9c0 receive_mergeable+0x26f/0xb50 receive_buf+0x2ad/0x460 virtnet_receive+0x49b/0x5d0 virtnet_poll+0x454/0x1050 __napi_poll.constprop.0+0xa2/0x460 net_rx_action+0x50d/0xcd0 handle_softirqs+0x1f6/0x5c0 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0xe/0x20 sysvec_apic_timer_interrupt+0x78/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 unreferenced object 0xffff88801b0dcc40 (size 216): comm "softirq", pid 0, jiffies 4294866086 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 a0 8a 08 80 88 ff ff 00 00 00 00 00 00 00 00 ................ backtrace (crc 8f66e476): kmem_cache_alloc_noprof+0x2ad/0x350 build_skb+0x44/0x250 page_to_skb+0x15d/0x9c0 receive_mergeable+0x26f/0xb50 receive_buf+0x2ad/0x460 virtnet_receive+0x49b/0x5d0 virtnet_poll+0x454/0x1050 __napi_poll.constprop.0+0xa2/0x460 net_rx_action+0x50d/0xcd0 handle_softirqs+0x1f6/0x5c0 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0xe/0x20 sysvec_apic_timer_interrupt+0x78/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 unreferenced object 0xffff88802bbaf4c0 (size 640): comm "softirq", pid 0, jiffies 4294866086 hex dump (first 32 bytes): 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk backtrace (crc 8654ba84): kmem_cache_alloc_node_noprof+0x2b1/0x360 kmalloc_reserve+0x13e/0x240 __alloc_skb+0x110/0x2e0 napi_alloc_skb+0x52/0x5c0 page_to_skb+0x321/0x9c0 receive_mergeable+0x26f/0xb50 receive_buf+0x2ad/0x460 virtnet_receive+0x49b/0x5d0 virtnet_poll+0x454/0x1050 __napi_poll.constprop.0+0xa2/0x460 net_rx_action+0x50d/0xcd0 handle_softirqs+0x1f6/0x5c0 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0xe/0x20 sysvec_apic_timer_interrupt+0x78/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 xx__->