Le lun. 17 févr. 2020 à 17:55, matthew green <m...@eterna.com.au> a écrit : > > FWIW, i've been running my radeon with a patch that exlicitly drops > kernel lock around the "real attach" function (the one that config > mountroot ends up calling.) > > we really need to MPSAFE-ify the autoconf subsystem. right now, it > is expected that autoconf runs with kernel lock... i am not sure of > the path we should take for this -- but let's actually have a design > in place we are happy with, while my change below works, it's ugly > and wrong.
Would it make sense to simply require all callers of config_mountroot() to have MPSAFE config routines and call the callbacks for them without kernel lock? There are just few of those, and they can simply be changed to do the KERNEL_LOCK()/UNLOCK themselves. Jaromir
