Re: [Bug 1255] [asan] net/mlx5: memory leak on port cleanup

[Asaf Penso <asafp@nvidia.com>]

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Hello David,
What's the dpdk version used in that OS?
Have you tried manually installing latest dpdk and check?
We recently fixed some mem issue, raised by valgrind.

Regards,
Asaf Penso
________________________________
From: bugzilla@dpdk.org <bugzilla@dpdk.org>
Sent: Tuesday, June 20, 2023 2:09:48 PM
To: dev@dpdk.org <dev@dpdk.org>
Subject: [Bug 1255] [asan] net/mlx5: memory leak on port cleanup

Bug ID  1255<https://bugs.dpdk.org/show_bug.cgi?id=1255>
Summary [asan] net/mlx5: memory leak on port cleanup
Product DPDK
Version unspecified
Hardware        All
OS      All
Status  UNCONFIRMED
Severity        normal
Priority        Normal
Component       other
Assignee        dev@dpdk.org
Reporter        david.marchand@redhat.com
Target Milestone        ---

This is something I caught on RHEL 9.2 but it might be generic:

# rm -rf build; meson setup build
-Denable_drivers=bus/auxiliary,common/mlx5,net/mlx5 -Ddisable_libs=*
-Denable_apps=test-pmd -Dbuildtype=debug -Ddeveloper_mode=disabled
-Db_sanitize=address -Dtests=false -Dexamples=
...
# ninja -C build
...
# lspci | grep Ethernet.*Mellanox
98:00.0 Ethernet controller: Mellanox Technologies MT2892 Family [ConnectX-6
Dx]
98:00.1 Ethernet controller: Mellanox Technologies MT2892 Family [ConnectX-6
Dx]
98:00.2 Ethernet controller: Mellanox Technologies ConnectX Family mlx5Gen
Virtual Function
98:01.2 Ethernet controller: Mellanox Technologies ConnectX Family mlx5Gen
Virtual Function

# echo quit | ASAN_OPTIONS="use_sigaltstack=0" ./build/app/dpdk-testpmd -a
0000:98:00.0 -- -ia

...

=================================================================
==135295==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 80 byte(s) in 1 object(s) allocated from:
    #0 0x7f14054b4bd7 in calloc (/lib64/libasan.so.6+0xb4bd7)
    #1 0x7f1405e5ec6c in dr_action_create_generic
../providers/mlx5/dr_action.c:1009
    #2 0x294135e in mlx5_flow_os_create_flow_action_dest_devx_tir
../drivers/net/mlx5/linux/mlx5_flow_os.h:409
    #3 0x294b3e7 in mlx5_devx_hrxq_new ../drivers/net/mlx5/mlx5_devx.c:924
    #4 0x294cb13 in mlx5_devx_drop_action_create
../drivers/net/mlx5/mlx5_devx.c:1169
    #5 0xec0f50 in mlx5_drop_action_create ../drivers/net/mlx5/mlx5_rxq.c:3101
    #6 0x2c62d99 in mlx5_dev_spawn ../drivers/net/mlx5/linux/mlx5_os.c:1556
    #7 0x2c68fb2 in mlx5_os_pci_probe_pf
../drivers/net/mlx5/linux/mlx5_os.c:2348
    #8 0x2c6a4b1 in mlx5_os_pci_probe ../drivers/net/mlx5/linux/mlx5_os.c:2497
    #9 0x2c6b08e in mlx5_os_net_probe ../drivers/net/mlx5/linux/mlx5_os.c:2578
    #10 0xc6afff in drivers_probe ../drivers/common/mlx5/mlx5_common.c:937
    #11 0xc6b6a6 in mlx5_common_dev_probe
../drivers/common/mlx5/mlx5_common.c:1027
    #12 0xc8ad0a in mlx5_common_pci_probe
../drivers/common/mlx5/mlx5_common_pci.c:168
    #13 0xc1e3fa in rte_pci_probe_one_driver
../drivers/bus/pci/pci_common.c:312
    #14 0xc1eadb in pci_probe_all_drivers ../drivers/bus/pci/pci_common.c:396
    #15 0xc1eb82 in pci_probe ../drivers/bus/pci/pci_common.c:423
    #16 0xb72d22 in rte_bus_probe ../lib/eal/common/eal_common_bus.c:78
    #17 0xbe317e in rte_eal_init ../lib/eal/linux/eal.c:1300
    #18 0x5e80a0 in main ../app/test-pmd/testpmd.c:4515
    #19 0x7f140503feaf in __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58

SUMMARY: AddressSanitizer: 80 byte(s) leaked in 1 allocation(s).


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