Re: Panic on mlx5en.

Hi Peter, yes Im using the latest one.

Santi

On 2020-06-15 12:26, Hans Petter Selasky wrote:
> On 2020-06-15 11:12, Santiago Martinez wrote:
>> Hi everyone, while doing some tests for an MRSAS panic I hit another 
>> one on mlx5en.
>>
>> The device is a LenovoSR655 with 2xMellanox NIC.
>>
>> 1 - Mellanox CX-4 Lx 10/25GbE SFP28 2-port OCP Ethernet Adapter
>> 2 - Mellanox CX-4 Lx 10/25GbE SFP28 2-port PCIe Ethernet Adapter
>>
>> This only happens only with current, tried different snapshots and 
>> the same in all.
>> On 12.1 works without a problem.
>>
>> Trace (please not that is OCR+ manual corrections):
>>
>> Tracing pid 2288 tid 182178 td _at_8xfffffeB385fe6500
>> kdb_enter() at kbd_inter+0x37/frame 0xfffffe0386030ba0
>> vpanic() at vpanic+0x19e/frame 0xfffffe0386030bf0
>> panic() at panic+0x43/frame 0xfffffe038630c50
>> trap_fatal() at trap_fatal+0x387/frame 0xfffffe0386030cb0
>> trap() at trap+0x80/frame Bxfffffe0386030dc0
>> calltrap() at calltrap+0x80/frame Bxfffffed386830dc0
>> --- trap 0x9, rip = 0xfffffff8275c060, rsp = 0xfffffe0386030e90, rbp 
>> = 0xfffffe0386030e90 ---
>> linux_root_RB_INSERT_COLOR() at linux_root_RB_INSERT COLOR+0x40/frame 
>> 0xfffffe0386030f60
>> give_pages() at give pages+0x163/frame 0xfffffe0386830f20
>> mlx5_satisfy_startup_pages() at mlx5_satisfy_startup_pages+0x76/frame 
>> 0xfffffe0386030f60
>> mlx5_load_one () at mlx5_load_one+0x6b7/frame 0xfffffe0386031080
>> init_one() at init_one+0x12d5/frame 0xfffffe03860310f0
>> linux_pci_attach_device() at linux_pci_attach device+0x573/frame 
>> 0xfffffe0386031150
>> device_attach() at device_attach+0x3ca/frame 0xfffffe0386031190
>> device_probe_and_attach() at device_probe_and_attach+0x70/frame 
>> 0xfffffe03860311c0
>> pci_driver_added() at pci_driver_added+0xf6/frame 0xfffffe0386031200
>> devclass_driver_added() at devclass_driver_added+0x39/frame 
>> 0xfffffe0386031240
>> devclass_add_driver() at devclass_add_driver+0x147/frame 
>> 0xfffffe0386031280
>> _linux_pci_register_driver() at _linux_pci_register_driver+0xc9/frame 
>> 0xfffffe03860312a0
>>
>
> Are you using the latest version of kernel & mlx5en as of today? There 
> was a regression issue with the rbtree.h implementation which recently 
> was fixed.
>
> --HPS
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