Hello,
I am making tests with a Mellanox MLX5 Endpoint, and I am getting kernel hangs
when trying to enable the hca:
mlx5_core 0000:01:00.0: enabling device (0000 -> 0002)
mlx5_core 0000:01:00.0: Warning: couldn't set 64-bit PCI DMA mask
mlx5_core 0000:01:00.0: Warning: couldn't set 64-bit consistent PCI DMA mask
mlx5_core 0000:01:00.0: firmware version: 16.19.21102
INFO: task swapper:1 blocked for more than 10 seconds.
Not tainted 4.11.0-BETAMSIX1 #51
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
swapper D 0 1 0 0x00000000
Stack Trace:
__switch_to+0x0/0x94
__schedule+0x1da/0x8b0
schedule+0x26/0x6c
schedule_timeout+0x2da/0x380
wait_for_completion+0x92/0x104
mlx5_cmd_exec+0x70e/0xd60
mlx5_load_one+0x1b4/0xad8
init_one+0x404/0x600
pci_device_probe+0x122/0x1f0
really_probe+0x1ac/0x348
__driver_attach+0xa8/0xd0
bus_for_each_dev+0x3c/0x74
bus_add_driver+0xc2/0x184
driver_register+0x50/0xec
init+0x40/0x60
(...)
Stack Trace:
__switch_to+0x0/0x94
__schedule+0x1da/0x8b0
schedule+0x26/0x6c
schedule_timeout+0x2da/0x380
wait_for_completion+0x92/0x104
mlx5_cmd_exec+0x70e/0xd60
mlx5_load_one+0x1b4/0xad8
init_one+0x404/0x600
pci_device_probe+0x122/0x1f0
really_probe+0x1ac/0x348
__driver_attach+0xa8/0xd0
bus_for_each_dev+0x3c/0x74
bus_add_driver+0xc2/0x184
driver_register+0x50/0xec
init+0x40/0x60
mlx5_core 0000:01:00.0: wait_func:882:(pid 1): ENABLE_HCA(0x104) timeout. Will
cause a leak of a command resource
mlx5_core 0000:01:00.0: enable hca failed
mlx5_core 0000:01:00.0: mlx5_load_one failed with error code -110
mlx5_core: probe of 0000:01:00.0 failed with error -110
Could you give me a clue of what might be happennig?
Thanks,
Joao
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