Drivers compiled against some kernels produce crash when used with newer kernels

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Environment

SUSE Linux Enterprise Server 12 Service Pack 1 (SLES 12 SP1)

Situation

Drivers compiled against the following kernels:-

Jan-05-2018 3.12.74-60.64.69.1 (LTSS)
Jan-16-2018 3.12.74-60.64.72.1 (s390x only) (LTSS)

and that used the defined 'alternatives', are not 'portable' and will produce a crash when used with kernels newer than those listed above.

Resolution

The 'alternatives' definition was corrected in the kernel: Feb-22-2018 3.12.74-60.64.82.1 (LTSS)

Recompiling any affected drivers using this kernel or any later kernel should again produce a 'portable' driver.

Cause

Additional Information

Disclaimer

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