On 2018-05-05, Tom Rini wrote: > On Sat, May 05, 2018 at 04:04:08PM -0700, Vagrant Cascadian wrote: >> Markus Krebs discovered that the sheevaplug target has again grown and >> installation overlaps where the u-boot env is saved since u-boot >> ~2017.09. Running saveenv overwrites u-boot, and installing u-boot >> overwrites any prior environment settings. >> >> More detail on the bug report in Debian: >> >> https://bugs.debian.org/897671 >> >> We don't carry any patches for the sheevaplug u-boot target in Debian, >> so this is likely also an issue upstream. Who are the current >> maintainers for sheevaplug in u-boot upstream? >> >> A brief summary of the current findings: >> >> On 2018-05-05, Markus Krebs wrote: >> > Am 05.05.2018 um 20:36 schrieb Markus Krebs: ... >> > but the environment shouldn't start at 0x80000 when u-boot.kwb > 524 KB; >> > in this case 'saveenv' overwrites u-boot (?). >> > Changing 0x80000 to 0xa0000 helps ; I compiled a u-boot.kwb from the >> > so-modified sources, and now I can start Debian fine. >> >> It looks like it was bumped from 0x60000 to 0x80000 in 2014: >> >> >> http://git.denx.de/?p=u-boot.git;a=commit;h=4dfb0e4d3e75763d6fbe8788316bea9ba23e8e01 >> >> If 0x80000 isn't enough, there might be some features in the config to >> experiment with removing, or it may need to be bumped again. > > I've added the maintainer to the list as well. I would suggest looking > for things to trim out, perhaps CMD_MEMTEST ?
Thanks for the suggestsions. CMD_MEMTEST wasn't present, but disabling EFI_LOADER made u-boot 2018.05 go from 592k down to 548k. There's not a *lot* left to disable in the config, but that's a significant start... On a related note, I'm wondering if EFI_LOADER should only be enabled with SYS_ARM_ARCH >= 7 by default, as many of the earlier arm systems tend to be space-constrained, and those that aren't could enable it on a case-by-case basis. > Also, a patch to make it a link error when we exceed the size allowed > would be great, so that in the future we catch this when it happens. > Thanks! Will look into it, although would be happy if someone beats me to it. :) live well, vagrant
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