On Fri, 31 May 2013, Russ Anderson wrote: > OK. I get nvram looks full due to lack of garbage collection > on some systems. Does QueryVariableInfo (at runtime) tell you > it is full? Is the problem that it says it is full when it > is not, or does not tell you it is full when it is? We are trying to count the size occupied by existing UEFI variables. QueryVariableInfo() called from runtime environment doesn't give a full picture, as it doesn't provide information about boot-only variables. Hence the patch. > > up the size of the variables ourselves, but that only gives us the value > > for runtime-visible variables. We also need to know how much space is > > used by variables that are only visible during boot, > > Is it valid to assume that only the kernel writes to nvram at > runtime? Well, mostly yes. But if the kernel doesn't know what the initial state is, it can't count the size properly. > > > Which means the previous patch(es) that caused the bricking should > > > get pulled, too. > > > > There are no patches that cause the bricking. > > I thought that was the problem you were trying to avoid. The problem that needs to be avoided is machines turning into bricks if EFI storage nvram is getting full. -- Jiri Kosina SUSE Labs -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
