On Fri, Dec 05, 2008 at 11:21:11AM +0000, Andy Green wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi - > > On the trac bug about WSOD > > https://docs.openmoko.org/trac/ticket/1841 > > Nicolas Dufresne has sent into Trac a couple of patches that attack WSOD > on his device by effectively disabling deep sleep mode on LCM ASIC. > Other users and tried them on their affected device (not all devices > exhibit this, annoyingly mine don't) and reported there that it's gone > away by this change. > > Since yesterday I added his patches to the stable and stable-tracking > branches. So it's expected that we finally made some impact on WSOD on > both 2.6.24 and .28 stuff thanks to Nicolas' work. > > The side effect of working around it by disabling deep sleep mode is > that we burn a little power then in suspend we don't need to. A few > days ago I reviewed the new regulator mach-gta02.c setup while doing the > boot_on stuff and changed LDO6 not to stay up. To my surprise this > trashes my LCM operation with "jazzy lines", the moment the power is > taken and after resume, and just like WSOD behaviour this is sticky, > surviving the alleged hard reset and reinit just as done at boot (which > never ever exhibits WSOD on any machine interestingly). > > So the net result right now is WSOD is allegedly gone by Nicolas' > patches, but suspend current is a little higher until we figure out the > correct timing and sequencing to bring back the LCM after its power was > taken (which again never ever fails at boot). > > - -Andy
I've been following the discussion and this is great news! Shall I wait for the latter or change to the latest stable in testing? - John
