I'm seeing a variety of BUGs on my EeePC 701 after hibernation. Sometimes they cause a hang during resume; sometimes they happen just after resume. It doesn't happen all the time either - I've just hibernated three times in a row with no problems. It's most perplexing.
One resume hang showed a series of SCSI backtraces and errors. Unfortunately I wasn't able to capture it at the time. They were most probably related to the root device, an SSD controlled by ata_piix.
Today on latest -git I captured this "bad swap file entry" problem. I use a swap file for hibernation (I don't have a swap partition).
Previously, on a slightly older kernel (still after 32-rc1), I captured this BUG in fget_light():