** Changed in: linux (Ubuntu Focal)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/1939855
Title:
[SRU] Ice driver causes the kernel to crash with Ubuntu 20.04.2 with
ethtool specific register commands
Status in dellserver:
Incomplete
Status in focal package in Ubuntu:
Invalid
Status in linux package in Ubuntu:
Invalid
Status in focal source package in Focal:
Invalid
Status in linux source package in Focal:
Fix Committed
Bug description:
[Impact]
When we run the command, ethtool -d <interface_name> with Intel cards (ice
driver), the kernel crashes because of the ice driver.
The same works fine with HWE kernel (5.11). Here, we do not see any crash.
[FIXES]
ice: Fix bad register reads
The "ethtool -d" handler reads registers in the ice_regs_dump_list array
and returns read values back to the userspace.
commitID: 1fba4a8a92706c89716449b1aab1b6879f438d34
https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-
next.git/commit/drivers/net/ethernet/intel/ice?id=1fba4a8a92706c89716449b1aab1b6879f438d34
[TESTING]
Install Focal on a system with an E810 network device.
Ensure the network device has an IP address and has connectivity
Run ethtool -d <interface_name>
Expected result: Prints a register dump for the specified network device
[REGRESSION RISK]
The regression risk is low
[OTHER INFO]
I have added the fix, built the kernel and tested the fix.
https://code.launchpad.net/~mreed8855/ubuntu/+source/linux/+git/focal/+ref/e810_ethtool_fix_next
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