On Tue, May 9, 2017 at 8:38 PM, Joao Pinto <joao.pi...@synopsys.com> wrote: > Hi Saeed, > > Às 6:35 PM de 5/9/2017, Saeed Mahameed escreveu: >> On Tue, May 9, 2017 at 7:25 PM, Joao Pinto <joao.pi...@synopsys.com> wrote: >>> 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? >>> >> >> Hi Joao, >> >> Looks like FW is not responding, most likely due to the DMA mask >> setting warnings, which architecture is this ? >> >>> Thanks, >>> Joao > > I am working with a 32-bit ARC processor based board, connected to a > prototyped > Gen4 PCI RC. >
Ok, i will consult with our PCI and FW experts and get back to you. please note that the current mlx5 driver was never tested on 32-bit architecture and might not work properly for you. > Thanks, > Joao > > >
