> From: Chris von Recklinghausen <crecklin@xxxxxxxxxx> > Sent: Friday, April 16, 2021 6:17 AM > ... > Hibernation fails on a system in fips mode because md5 is used for the e820 > integrity check and is not available. Use crc32 instead. > > The check is intended to detect whether the E820 memory map provided > by the firmware after cold boot unexpectedly differs from the one that > was in use when the hibernation image was created. In this case, the > hibernation image cannot be restored, as it may cover memory regions > that are no longer available to the OS. > > A non-cryptographic checksum such as CRC-32 is sufficient to detect such > inadvertent deviations. > > Fixes: 62a03defeabd ("PM / hibernate: Verify the consistent of e820 memory > map > by md5 digest") > > Signed-off-by: Chris von Recklinghausen <crecklin@xxxxxxxxxx> > --- Tested-by: Dexuan Cui <decui@xxxxxxxxxxxxx> Reviewed-by: Dexuan Cui <decui@xxxxxxxxxxxxx> Thanks Chris and all for the patch!