Eric W. Biederman wrote:
Let me put this concrete proposal on the table. The problem: With the current set of crashkernel= options we are asking the distribution installer to perform magic. Moving as much of this logic into a normal init script for better maintenance is desirable. My proposal: Implement crashkernel=max which reserves as much memory as is reasonable for a crash kernel, without seriously affecting stability, performance, and reliability.
This is almost exactly what I want with crashkernel=auto.... So there's no big difference, except the name.
As an initial approximation I would use a 32nd of low memory.
Hmm, I think Bernhard's proposal is fine for this case, i.e. we can introduce a new syntax, "crashkernel=>>X" which means we reserve 1/2^X of system memory.
What do you think?
In addition implement: /sys/kernel/crash_size That can be written to (with enough privileges when no crash kernel is loaded) reduce the amount of memory reserved by the crash kernel.
Yeah, this is nice! Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-ia64" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
|