libera/#devuan-arm/ Thursday, 2024-04-25

gnarfaceso, i tried to build a kernel for my pine64+ board and it just boot loops after "starting kernel..."16:45
gnarfacethe last one worked fine and as far as i can tell the only thing i did different was i used the current kernel source package and i built it on the bare metal instead of cross-building16:46
gnarfaceany ideas?16:46
gnarfacei'm sure it's something dumb i'm forgetting but there it is16:46
gnarfacehmmm... it's smaller than the previous kernel, not by much, but enough to be sure that's not the problem...17:02
gnarfacei didn't upgrade u-boot, but i'm only going from kernel 5.18 to 6.1 so i didn't think that would matter17:18
gnarfaceugh, nevermind, mabye found it...17:28
Hurgotrondo tell17:30
gnarfacecould have sworn i marked the root filesystem as "*" not "M" but it's clearly "M"17:32
gnarfacere-testing is gonna take some time though, these things don't exactly build a kernel fast...17:32
gnarfacethere's every possibility i missed something else important, if i missed that17:33
gnarfacei guess we'll see17:33
Hurgotron:)17:36
gnarfaceHurgotron: got any opinions on whether i should use -O2 or -Os on hardware like this?17:39
gnarfacesome have suggested that due to hardware limitations, -Os might actually run faster, but i'm not clear on real numbers17:39
agnelignarface: for the -O I believe you need to check every and each aplication separately18:44
agneliyour milleage might vary ;)18:45
gnarfacei see18:55
agneliyou might as well get code that is slower18:56
agneliand if you give sufficiently big -O your code might not actually do what it is supposed to do :)18:56
agneliprobably a good topic to discuss on #gentoo-chat channell ;)18:57
agnelior whatever it is called18:57
agneliare you maybe fluent in gdb, please?18:57
gnarfaceno, i am not, unfortunately19:07
gnarfacethough i doubt i'd be trying something crazy like -O3 ever again anyway19:07
gnarfacegood idea on the gentoo chat though...19:07

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