My switch is unpatched. By the time sysmodules are loaded I suppose modchip has long done it's work but maybe it modify how the environment enough to make a difference. Kind of far fetch though.someone mentioned people with chips having the issue. Might be a red herring but are you using either a Modchip or a Trinket?
What if there were no sigpatches. Does it still crash?
So are you saying for you HW mod + pure Atmosphere + sigpatches + sys-ftp-light => crash?