<russell-->
uh, shouldn't i be able to nuke feeds and build a feedless firmware during bisection? i'm getting a ration of defconfig errors at 3db12da7cd
<russell-->
what should i be cleaning between bisect builds? will the make dependencies reliably rebuild the kernel? /me vaguely/unreliably recalls that version changes will trigger a rebuild but (??) not changes to patches?
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<russell-->
r9944-07720c392f hangs
<KanjiMonster>
russell--: changes to patches should as well, but IIRC there are parts where toolchain updates/patches may not get properly picked up
<russell-->
r9867-43e8c37cb4 is okay
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<russell-->
i'm building on a crappy two core Intel(R) Celeron(R) CPU N3450 @ 1.10GHz, each iteration is taking about 20 minutes to build without any explicit cleaning, i'm going to pretend it's reliable.
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<zorun>
russell--: do you have an account on https://portal.cfarm.net/ ? you get SSH access and it should be much faster to build
<russell-->
zorun: i think i'll be done by the time they could give me an account, but ... thanks for the pointer and I'll request one anyway. i have decent build machines here, just none on ancient OS versions.
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<russell-->
r9905-647356a3d2 hangs
<russell-->
r9886-399aa0b933 is okay
<russell-->
probably one of the two 4.14 kernel bumps in the bisection window. 4.14.111 is okay.
<zorun>
russell--: you're in :)
<russell-->
this linux commit looks shady: 20afb90f730982882e65b01fb8bdfe83914339c5
<KanjiMonster>
russell--: if reverting works, would be interesting to compare the assembly of arch/x86/kernel/cpu/cyrix.o
<russell-->
looks like it might be off the hook, r9900-82625374ee seems to work.
<russell-->
nope, it worked of the fisrt boot, but not the second
<russell-->
on*
<russell-->
i'm short circuiting the bisect to go straight for the 4.14.113 bump, and if that's bad i'll rever that one kernel patch and see if that fixes
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<russell-->
r9896-07aaa7e3d6 hangs, trying the revert
<russell-->
yep, the revert fixes the warm boot hang
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<russell-->
KanjiMonster: this is what i tried, staging_dir/toolchain-i386_pentium_gcc-7.4.0_musl/bin/i486-openwrt-linux-objdump -S -h -D build_dir/target-i386_pentium_musl/linux-x86_legacy/linux-4.14.113/arch/x86/kernel/cpu/cyrix.o