Just to point out that until now - after having compcache enabled - I had 2 hard crashes with new KP49. I write here because I think it could be a particular use-case that triggers the lock. Both times it happened to me while mediaplayer was broadcasting via FM transmitter, and heavy swap activity caused by an incoming call locked the interface, triggered the vibrator until the phone once rebooted itself and the other one obliged me to take away the battery after more than a minute with the vibrator shaking...
Before I passed to KP49 with stock DSP profile, I had KP48 with a rather undervolted profile with some instabilities from time to time. At the time, using compcache was almost impossible, causing lock usually by SD file system corruption (see a pattern here?)
I decided to test KP49 some time ago and so far, very good, with very stable phone and seeminlgy almost same battery life of my old configuration.
Then I decided to enable compcache again, installed the swap enabler script and felt immediately that probably no more fiddling would be done since the 900 was almost perfect.
Unfortunately, since then those two hard crashes happened, both as described with a very similar pattern. If somebody gives me a clue, I can try to dig it more if it happens again.
Ok... Now I don't like the changes. SR doesn't crash, but I can't play videos because of a DSP MMU fault... -.-
I was so sure that I read "stable" in the title.
How am I supposed to deal with this..?
sadly I also experience a number of reboots with kp49. First I thought is was because I selected the DSP profile, and that it was a overclocking problem. But after using default settings a few days now, that doesn't seem to fix the problem. I will be doing some more tests in the near future hoping I can pinpoint a problem. I disabled SR btw.
Ok... Now I don't like the changes. SR doesn't crash, but I can't play videos because of a DSP MMU fault... -.-
I was so sure that I read "stable" in the title.
How am I supposed to deal with this..?
@freemangordon
Wishing this could help...This is the situation:
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WORKING: default profile BUT with vdd1=0
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NOT WORKING
(DSP faults every boot and every video, battery drain)
standard default profile with vdd1=1
After a week of testing KP49 is completely stable for me, with default, dsp and ideal modes.
The one thing I notice is that even without overclocking, using the media player drains the battery much faster than the stock nokia kernel. Basic use, 25 min of music in the car and on stock today I'm at 92% left (running for 3.5 hours so far). The best I've been at with the same use with KP49 was 75% over the past week using battery graph. I'm running CSSU, 1.3...no fancy patches or crap....just figured I'd share. I didn't personalize any of the KP settings, just ran them as-is.
Other than that battery life with any other task seems on par or better than stock nokia kernel on my device.
Ok... Now I don't like the changes. SR doesn't crash, but I can't play videos because of a DSP MMU fault... -.-
I was so sure that I read "stable" in the title.
How am I supposed to deal with this..?
Originally Posted by don-falcone
Me too *scratches head*
Because it is stable in extras-devel, so usual -devel warnings still apply
Seriously though, freemangordon is working on better re-calculation of SR values - properly testing was"mt possible without plentora of users from -devel installing this, as it turned out.
For now, pushing DSP 600 mhz to MPU 850 (and using lower values for lower MPU) should do. If someone don't like messing with clock/voltage settings, turning vdd1 and vdd2 to 0 with dsp profile should be 100% rock solid stable (sacrificing benefits of SR).
moving back to Nokia default kernel. Kernel Power 49 is eating lots of battery. drains my battery completely in 8 hours. in offline mode and in standby. is there is any way to solve it ?
recently (about a week ago) i updated KP49 beta to KP49 from extras devel. it seems to work stable, but i noticed i still have bugs related to usb networking, which may lead to reboot.
...
- I managed to usb networking (where PC is router and PC and N900 are linked by usb cable) be able to run on stock kernel, and it occured that USB-networking-bug happenned at least once (it was the bug not plain incompability since i was able to transfer some data)
- the one above suggests it's a bug in driver, so it's not mainly related to the kernel power, but it may be a bug in driver firing a bug in KP (we had some once, and i believe it shouldn't crash the system, just break connection)
After more than two months, that glitch still occurs when my PC starts to use the internet connection such as when loading a website. Usually it happens every few days, sometimes every day. I don't want to switch back to a dial-up connection. I have the latest kp49. Using the default 600 MHz kernel profile has no effect so it's not a profile causing it. I wonder is there anything to do about the glitch.
flashed my phone yesterday and installed kp49 today. no battery draining issues till yet. will install hd libs and camera ui 2 for hd video recording. will tell if battery draining issue came back.
