On Thu, 2017-07-13 at 21:16 +0200, Karsten Merker wrote: [...] > many thanks for tracking this down to the watchdog driver. We > had experienced the effect that rebooting from within d-i didn't > work properly on several sunxi-based systems, but hadn't found > the actual cause yet. I've tried to do a bit of further research > and it looks like sunxi-based platforms are somewhat special in > requiring the watchdog even for the normal system reset > functionality and not only for an actual watchdog function. > I haven't found indicators for similar dependencies on other > platforms during my search, but of course they might exist > nonetheless. > > Ben, do you know of any other platforms that require a watchdog > driver for a "normal" system reset?
No, but then I'm not an ARM porter. > If sunxi is the sole "odd" platform here, I suppose the best > solution would be to integrate the sunxi_wdt module directly into > the kernel-image-<version>-armmp-di udeb. Any driver like this that is needed for basic functionality in every installer flavour should go into kernel-image. So I've made this change on the stretch and sid branches for armhf. > Probably we will need > to include it for arm64 as well, as AFAIK the 64bit Allwinner > SoCs A64 and H5 use the same watchdog logic as the older 32bit > SoCs. Proper support for A64 and H5 will be available in kernel > 4.13, so those will become target platforms for d-i in the nearer > future. I'll add 'sunxi_wdt ?' for arm64 now so this should work right once we actually enable the driver. Ben. -- Ben Hutchings - Debian developer, member of kernel, installer and LTS teams
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