[Bug]: coredump in ena_com.c

[bashars-cp]

Preliminary Actions

• I have searched the existing issues and didn't find a duplicate.
• I have followed the AWS official troubleshoot documentation.
• I have followed the driver readme and best practices.

Driver Type

Linux kernel driver for Elastic Network Adapter (ENA)

Driver Tag/Commit

ena - 2.5.0g

Custom Code

No

OS Platform and Distribution

GAIA R81.20 - Based on RHEL 7.9 (3.10.0-1160.15.2cpx86_64)

Bug description

crash -

BT:
PID: 13075 TASK: ffff8801398f9540 CPU: 2 COMMAND: "ethtool"
.
.
.
[exception RIP: ena_com_indirect_table_get+125]
RIP: ffffffff902e300d RSP: ffff880139417c58 RFLAGS: 00010202
RAX: 0000000000000001 RBX: ffffc90000ed5000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88021a797020
RBP: ffff880139417cb0 R8: ffff880139417b48 R9: 0000000000000000
R10: 0000000000000001 R11: 0000000000000063 R12: ffff8801f61c2400
R13: ffff8801f61c2400 R14: 0000000000000000 R15: ffff880224380000
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#12 [ffff880139417cb8] ena_get_rxfh at ffffffff902dde5e [ena]
#13 [ffff880139417cd0] ethtool_get_rxfh_indir at ffffffff816a8e74
#14 [ffff880139417d08] dev_ethtool at ffffffff816aaa03
#15 [ffff880139417e08] dev_ioctl at ffffffff816bcdbf
#16 [ffff880139417e98] compat_sock_ioctl at ffffffff8167f351
#17 [ffff880139417f30] compat_sys_ioctl at ffffffff8129944f
#18 [ffff880139417f80] sysenter_dispatch at ffffffff817c8361
RIP: 00000000ffffe430 RSP: 00000000fffcd798 RFLAGS: 00000246
RAX: 0000000000000036 RBX: ffffffff817c8361 RCX: 0000000000008946
RDX: 00000000fffcd918 RSI: 0000000009b86008 RDI: 000000000000002d
RBP: 0000000000000080 R8: 0000000000000000 R9: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
ORIG_RAX: 0000000000000036 CS: 0023 SS: 002b

Reproduction steps

Unexpected, there's no clear way to reproduce this, it happens often though.

Expected Behavior

No crash.

Actual Behavior

crash.

Additional Data

No response

Relevant log output

No response

Contact Details

[email protected]

[davidarinzon]

Hi @bashars-cp

2.5.0g driver is very old, it's from April 2021.
There were many changes in the code since then.
Please try using a more recent driver.

[davidarinzon]

Hi @bashars-cp

Do you have any further questions?