Software Call 02/06/2007
Attending:
o Jordan
o Chris Ball
o Chris Blizzard
o Marcelo
o Zephania
o Mitch
o John
o Andres (late)
o Richard (late)
Agenda:
o Process/policy by which things get into the kernel?
- Probably needs Jim around
- Need to pull in the experimental branch from time to time
- Need more communication about what needs to go in and when
o Build timeline updates
- Mitch wasn't there for the B2 build, so not sure
- Still have outstanding touchpad issue? Not sure how it's to be resolved
at this time? (time-based fencing of non-existing ops?)
- Two issues - erratic finger sensing?
- Do they jump when they forget to send the Up packet?
- Zeph - thinks that it's been fixed, but there's no specific list?
- Mitch thinks that the mylar pad helps with the electical issues and
there's a separate issue with the EC where it misses some packets
- Status of the workaround in the kernel? Warp thinks it's in the
olpc-2.6 kernel tree (cjb confirms)
- More issues with communications
- More problems with propagating information
- commits-kernel not working anymore
- more discussion of stable vs. not stable
- very confusing about how something makes it into the world
- andres: kernels - being automatically pulled into the nightlies is
fine?
- b2 is already done, basically
- the touchpad jumping issue isn't fixed
- need to tell J5 that a new kernel is available? don't need that.
- What else goes into the build?
- OS components that change
- both stable and unstable?
- master == stable, experimental == unstable
- andres, file trac bug for url for j5 to pull into the tree from
master
- any risk here? need to inform [email protected] that they commit to
the right branch
o BIOS issues
- Don't have the newest BIOS in an auto-updated image?
- Bless 239 for auto-updating image?
- Maybe 239 + new kernel + new BIOS?
- New battery stuff + new kernel
- Need to do some testing with the firmware? Nothing _that_ important
- New EC bits fix some problems but not a lot of testing outside of
b2s in china
- Do we have a list of burning issues for b2 right now? Not really.
- Overcharging battery problem? Touchpad issue? (Jumpy fix is in
the OS, not in the EC anyway)
- Going to include -61 in the b2 build in quanta - need to make an
auto update image that includes the new BIOS
- OS 239 + BIOS 61
o EC Code + Plan
- David has a copy of the code
- Mitch is still clean
- Need a decision here
o Power Management
- Mitch: VSAles code fails to do power off - it's solved now (missing GPIO)
- No feature that is missing from the fast boot VSAless firmware
- In a position to do resume from RAM
- Jordan and Mitch working on end to end PCI + power - committed to
experimental
- What are we missing now?
- Mitch thinks that we're ready to do it now, need a VSAless kernel
- These guys are ready to go? Sounds like it.
- Marcelo: one more issue: want drivers to shut down devices when possible
- Each driver needs a timeout right now i.e. Marvell won't shut
itself down
- Need to discuss and define
- dynticks? Jordan hasn't been, really. Patches are out there and
basically ready to go. Kind of waiting on Linus to avoid a later merge.
Andrew morton says that he thinks they are ready to go.
- Power rails + management + measurement in place?
- Richard has been working on it in between things.
- Resistors need to be swapped out, trying to find the right parts
- Hard to find the low ohm devices, making some progress
- Probably need a solid day to get this all done (mili-ohm.)
- Lots of discussion, etc.
- Target is the end of the week
o Next steps for the UI
- Journal is the most important
o X depth and performance issues
- Needs more discussion
- 4444 or 5551, 24 bit depth is not the right to go in Jordan's opinion
- no improvements in screen to screen copy
- 24 bit accel engine can't convert while it's blending
- animations might look awesome, but won't help other problems
- can't animate things right now, maybe 3-4 a second
- 4444
- Jordan will make the driver work if he can get pictures in the
right format
o Next steps for performance
- -fPIC is a really large slowdown in shared libraries (40% faster for
python, as an example)
- measurement infrastructure
- power rail measurement into the tinderbox, but nothing new there
o Remaining wireless issues
- firmware driver for the wireless from lillian
- new firmware release next week some time
- copy of the firmware in OFW - could export to the kernel?
- would be good to unify?
- boot up is fast, won't init wireless by default
- 100k for the wireless firmware and compresses well
- richard will try to reproduce with router in #841
- needs to be openwrt - RC5
- and has to be the right firmware
- tracy should have already bought one
- richard needs to make sure it's the right version
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