kmemleak工具查询内存泄露,该如何解决?
内核代码为4.18 请问 遇到如下情况该如何去寻再找对应的泄露点????
越具体越好,第一次寻找,只知道从没有对Kmalloc进行释放,即没有对应的kfree。但对于实际的事情发生还是读不懂以下代码的上下文 请高手帮忙找一下!!!!
[color=#3366FF]root@intel-x86-64:/sys/kernel/debug# echo scan > kmemleak
backtrace:
unreferenced object 0xffff9195e2b23400 (size 256):
comm "softirq", pid 0, jiffies 4347625846 (age 11.014s)
hex dump (first 32 bytes):
01 00 00 00 00 00 00 00 0e 00 00 00 00 00 00 00 ................
77 22 00 00 00 00 00 00 d8 89 46 ee 95 91 ff ff w"........F.....
backtrace:
[<0000000006fd5d99>] kmem_cache_alloc+0x146/0x200
[<000000006286cd07>] __nf_conntrack_alloc.isra.13+0x4d/0x170 [nf_conntrack]
[<000000007c6c2493>] init_conntrack+0x6a/0x2f0 [nf_conntrack]
[<00000000d25914e8>] nf_conntrack_in+0x2c5/0x360 [nf_conntrack]
[<00000000da4b0506>] ipv4_conntrack_in+0x1c/0x20 [nf_conntrack_ipv4]
[<00000000d3ecebfb>] nf_hook_slow+0x48/0xd0
[<00000000614296ff>] ip_rcv+0x2cf/0x3ef
[<000000003b23f1e8>] __netif_receive_skb_core+0x467/0xb70
[<000000009dcd5a0e>] __netif_receive_skb+0x26/0x70
[<000000008434533e>] netif_receive_skb_internal+0x53/0x150
[<00000000032fa581>] napi_gro_receive+0x5f/0x110
[<0000000025a1f512>] e1000_receive_skb+0x122/0x140
[<0000000074b81d85>] e1000_clean_rx_irq+0x1e8/0x400
[<000000009f7a3635>] e1000e_poll+0x81/0x2a0
[<000000006a7c910e>] net_rx_action+0x12e/0x370
[<000000006f9ad686>] __do_softirq+0xae/0x313[/color]