On Sun, Jan 22, 2006 at 11:41:29AM -0800, John-Mark Gurney wrote: > I've been working on a BT878 audio driver (first crack is available > in p4), and with a recent -current (you can sync to my -current as > it's the one in my workspace, jmg_carbon), I get memory corruption: > Memory modified after free 0xc2fb1050(12) val=1c _at_ 0xc2fb1050 > panic: Most recently used by ioctlops > or: > Memory modified after free 0xc2ba2b90(12) val=1c _at_ 0xc2ba2b90 > panic: Most recently used by Unitno > > I went back to a kerenl that is pre-Dec 21st, and I haven't had a single > panic yet. I will admit I haven't done a builtworld between the these > two (the last buildworld matched with the pre-Dec 21st kernel)... I am > using kld modules for my testing, so I was building modules against an > old world, but I don't know of anything that has changed that would > cause problems.. > > Anyone else seeing this? Use memguard to track down the cause. Kris
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