On 07.11.2008 16:04, Jordan Crouse wrote: > Carl-Daniel Hailfinger wrote: >> v3 does not have any mechanism to detect NULL pointers used by accident. >> >> I propose to fill the zero page (0x0-0xfff) with a special POISON_BYTE, >> maybe 0x6b. > > I'm not sure what problem you are trying to solve here? Are you > trying to responsibly catch NULL pointers and report information, or > are you trying to just be able to identify the situation on a debugger?
Catching NULL pointers immediately and reporting information would be really cool, but for most hardware I fear that looking at a RAM image after the fact is the only thing we can do. You're right, though, this RFC was mostly a monkey-see-problem monkey-do-something post, intended to get others to offer their insight on that problem area. Regards, Carl-Daniel -- http://www.hailfinger.org/ -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
