Hello,
If I run blktests (which unloads and reloads the rdma_rxe kernel module
repeatedly) against kernel v4.19-rc2 then kmemleak reports the following
leak complaint many times:
unreferenced object 0xffff8800d4942c00 (size 96):
comm "modprobe", pid 1148, jiffies 4295023189 (age 550.240s)
hex dump (first 32 bytes):
00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N..........
ff ff ff ff ff ff ff ff a0 04 f1 a0 ff ff ff ff ................
backtrace:
[<0000000013946701>] ib_uverbs_add_one+0x231/0x470 [ib_uverbs]
[<00000000df577ad1>] ib_register_client+0x5b/0x100 [ib_core]
[<000000000fe5c216>] 0xffffffffa0e180e0
[<00000000f4d53513>] do_one_initcall+0x93/0x37c
[<00000000349122fa>] do_init_module+0xde/0x334
[<00000000525a45c2>] load_module+0x3b30/0x46c0
[<000000007aed46a5>] __do_sys_finit_module+0x176/0x1a0
[<00000000475b194a>] do_syscall_64+0x72/0x230
[<00000000e22ef972>] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[<000000009ada268d>] 0xffffffffffffffff
(gdb) list *(ib_uverbs_add_one+0x231)
0x1381 is in ib_uverbs_add_one (drivers/infiniband/core/uverbs_main.c:
1003).
998 struct ib_uverbs_device *uverbs_dev)
999 {
1000 struct uverbs_api *uapi;
1001
1002 uapi = uverbs_alloc_api(device->driver_specs,
device->driver_id);
1003 if (IS_ERR(uapi))
1004 return PTR_ERR(uapi);
1005
1006 uverbs_dev->uapi = uapi;
1007 return 0;
Had anyone else already observed this?
Thanks,
Bart.
