On Wed, Feb 08, 2023 at 02:33:58PM +0000, Philippe Schenker wrote: > Hi Tom, > > We currently face an issue on our apalis-imx8 machine, that is not able > to boot with a ramdisk. What happens is that there are all 8 of 8 LMBs > reserved and fdt tries to allocate one more, probably for relocation. > > I now stumbled on this recent patch and noticed that in my understanding > this is introducing a regression to all the boards you remove > `CONFIG_LMB_MAX_REGIONS=64` isn't it? Or do I miss something? > > For the other question this raises to me is it in general safe to just > increase this limit, let's say to 16? > > And since it was quite an effort debugging this issue I thought of > adding a debug print if the MAX cnt in lmb.c is being hit to ease that > pain for other devs, would you be fine with something like this?
Right, so with the late in the cycle change to make EFI use LMBs as well, a lot of platforms hit the 8 of 8 LMBs now in use problem. The change here switches from a static allocation of a maximum number of LMBs to dynamically allocating as many of them as needed. -- Tom
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