On Wed, 2008-06-11 at 18:28 +0200, Arnd Bergmann wrote: > The ibm,cbe-start-ptcal rtas call transfers ownership > of a memory range to the hardware in order to do > periodic memory interface recalibration. > When we do a kexec, we need to get this page back, > so we don't step on the new kernel's toes. > We used to do this correctly in case of a user triggered > kexec, but not for kdump.
Used to? > This patch disables ptcal from the cell specific > machine_crash_shutdown() callback. I'd rather you used the crash_shutdown_register() infrastructure Mikey added for EHEA - it's designed for just this sort of thing. > I also needed to fix the pseries code that tries to install its > default_machine_crash_shutdown() code independent > of what machine we're running on. That's a buglet. cheers -- Michael Ellerman OzLabs, IBM Australia Development Lab wwweb: http://michael.ellerman.id.au phone: +61 2 6212 1183 (tie line 70 21183) We do not inherit the earth from our ancestors, we borrow it from our children. - S.M.A.R.T Person
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