I'm having serious problems with random kernel panics on my netbook, a Sony Vaio VPCM120AL. I can't replicate the issue, but i'm pretty sure it only happens when i'm on battery power.
I saw somewhere else that it may be something related to rt2800 Wi-Fi drivers and/or Wi-Fi power saving mode, but I can't see the problem on the system log.
The log is here. The last panic happened around 10:41.
I hope someone can help me with this.