swap_free: Bad swap file entry 00000004Do you use ECC memory, is ECC enabled in the BIOS [and does it work - some vendors lie about ECC support]?
I would bet that it's a soft memory error: 00000000 means not used. One bit differs, and the kernel complains about the invalid value. I think the following oops is a side effect of the bad swap entry.
Do you have timestaps in the system log? Is the swap error just before the BUG in buffer.c?
-- Manfred
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