I think it has something to do with the hard disk after resume. here is possibly relevant dmesg output from a recent resume
[23069.000101] ata1.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [23069.000163] ata1.00: cmd c8/00:08:2f:c7:99/00:00:00:00:00/ea tag 0 dma 4096 in [23069.000164] res 40/00:80:00:00:00/00:00:00:00:00/40 Emask 0x4 (timeout) [23069.000267] ata1.00: status: { DRDY } [23074.040119] ata1: link is slow to respond, please be patient (ready=0) [23079.024120] ata1: device not ready (errno=-16), forcing hardreset [23079.024136] ata1: soft resetting link [23079.206526] ata1.00: configured for UDMA/100 [23079.206544] ata1: EH complete I've been getting alot of kernel panics recently a few minutes after resume -- panasonic toughbook cf-y5 suspend / resume failure https://bugs.launchpad.net/bugs/350711 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs