I've also noticed some differences in stability depending on whether or not I'm using a VPN via the cisco_vpn kernel module. The crashes still happen regardless of the presence of VPN, but they do seem to occur more frequently in the presence of the cisco module.
When cisco_vpn is in use, kern.log gets lots of messages of this sort:
iwlagn: Unaligned address = 2e22a82f
Perhaps this can help further narrow down the issue. As for VPN, I haven't noticed any of the comments above mentioning whether it was in use or not, so perhaps that's another aspect to keep in mind.
I've also noticed some differences in stability depending on whether or not I'm using a VPN via the cisco_vpn kernel module. The crashes still happen regardless of the presence of VPN, but they do seem to occur more frequently in the presence of the cisco module.
When cisco_vpn is in use, kern.log gets lots of messages of this sort:
iwlagn: Unaligned address = 2e22a82f
Perhaps this can help further narrow down the issue. As for VPN, I haven't noticed any of the comments above mentioning whether it was in use or not, so perhaps that's another aspect to keep in mind.
Thanks,
Matt