Can you attach a full dmesg from the working kernel? Does the generic kernel boot with nosmp?
** Changed in: linux-source-2.6.15 linux-image-2.6.15-18-amd64-k8 (Ubuntu)
Status: Unconfirmed => Needs Info
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panic on boot with 2.6.15-18-amd64-generic
https://launchpad.net/malone/bugs/35788