Since we had such an excellent turn-out in the ideas for lag-on-wake thread, resulting in a team effort to get the kernel bug identified and fixed, I figured we could do the same for the SD Card issues in the Viewsonic source code that result in some apps disappearing or being unable to install unless you unmount the internal SD card area before installation.
Rothnic does have a request into Viewsonic, since they seem to have addressed this issue between their two kernel builds but they neglected to release the patch for it.
But... that could take several days or several weeks to trickle through the bureaucratic food chain. I suspect this is a small change if we can isolate the area.
What I tried so far:
Just the dumb-obvious. There are three mmc drivers directories in the VS patch, mmc, mmc_orig, and mmc-new. The only one getting built is the mmc directory. I diffed the mmc and mmc-new files, and tried building the mmc-new driver instead, but didn't observe any difference in behavior with respect to the mounting issues (i.e. error -18 when I try to install Angry Birds from market). The diff between these driver file sets is quite small, and limited to a few files.
What I suspect:
There is an "install to SD card" option built-in to some apps. I suspect that the apps affected by this may be the ones that enable this option. Perhaps something to do with the loopback device Android tries to create on the SD card for external app storage (http://android-developers.blogspot.com/2010/07/apps-on-sd-card-details.html)?
Why this relates to the kernel:
Well, the issue doesn't occur with the latest kernel build from Tap N Tap and does with our kernels. There are user-space workarounds (unmounting SD card) and some of that may be workable into our ROMs, but I'd like to get a kernel that is a drop-in replacement for the stock kernels.
Consider the following patch which just enables some "stuff" in the kernel.
http://nv-tegra.nvidia.com/gitweb/?...it;h=555d0c0e5b9a86b5e291216d59406709b34480d6
For me clicking on the link you included yields a page not found...
rcgabriel said:
Since we had such an excellent turn-out in the ideas for lag-on-wake thread, resulting in a team effort to get the kernel bug identified and fixed, I figured we could do the same for the SD Card issues in the Viewsonic source code that result in some apps disappearing or being unable to install unless you unmount the internal SD card area before installation.
There is an "install to SD card" option built-in to some apps. I suspect that the apps affected by this may be the ones that enable this option. Perhaps something to do with the loopback device Android tries to create on the SD card for external app storage (http://android-developers.blogspot.com/2010/07/apps-on-sd-card-details.html)?
Click to expand...
Click to collapse
rcgabriel said:
some apps disappearing or being unable to install unless you unmount the internal SD card area before installation.
Click to expand...
Click to collapse
Is it possible to unmount the internal SD card area while running the OS? I've used the mount / unmount options in CWM, but have not found a way to unmount /sdcard inside the OS. Wouldn't this be like cutting off the branch you are standing on? I'm currently running TnT Lite 3.1.2. Thanks.
Just a thought, but how does a standard android system's mounting structure run? Isn't it something to the tune of some other root folder than /sdcard, and when an sdcard is inserted that gets mounted to /sdcard? Is there a reason we don't have our roms mounting in this way, and would this not improve compatibility with the android system and apps as a whole?
If the issue is that people would then have to have an sdcard for a lot of things, perhaps we put those to /sdcard2 and partition a gig or two slice of the internal storage to mount at /sdcard so the internal storage can abide both concerns..
Am I way off in just thinking the systems mounting structure might be better served to mirror a standard android system? Does it already and I'm just being dingy?
vsc said:
Consider the following patch which just enables some "stuff" in the kernel.
http://nv-tegra.nvidia.com/gitweb/?...it;h=555d0c0e5b9a86b5e291216d59406709b34480d6
For me clicking on the link you included yields a page not found...
Click to expand...
Click to collapse
Fixed that link, but yeah, that looks like a very promising patch, and it's just config file changes....
The question is whether the CONFIG_BLK_DEV and CONFIG_BLK_DEV_LOOP stuff is also dependent on other patches to the mmc driver or other kernel files.....
EDIT: I cherrypicked the relevant-seeming config file changed from that patch, rebuilt the kernel, and am testing it.
BINGO! Angry birds installs again without having to remount. More coming...
See config_patch attached for the specific changes I made. For kernel devs, just unzip this into your arch/arm/configs dir and patch -p0 < config_patch.
I figured...
The thing that I don't know is why does TnTLite not have issues. But this can't hurt. Post your config so we are working with the same configuration and I'll give it a try with TnTLite.
rcgabriel said:
Fixed that link, but yeah, that looks like a very promising patch, and it's just config file changes....
The question is whether the CONFIG_BLK_DEV and CONFIG_BLK_DEV_LOOP stuff is also dependent on other patches to the mmc driver or other kernel files.....
EDIT: I cherrypicked the relevant-seeming config file changed from that patch, rebuilt the kernel, and am testing it.
BINGO! Angry birds installs again without having to remount. More coming...
Click to expand...
Click to collapse
vsc said:
I figured...
The thing that I don't know is why does TnTLite not have issues. But this can't hurt. Post your config so we are working with the same configuration and I'll give it a try with TnTLite.
Click to expand...
Click to collapse
Config uploaded above. I included the crypto stuff because I believe the loopback block device that Android uses requires it, but everything may work without it. Not certain.
I think the crypto stuff is required.
rcgabriel said:
Config uploaded above. I included the crypto stuff because I believe the loopback block device that Android uses requires it, but everything may work without it. Not certain.
Click to expand...
Click to collapse
Very nice find guys.
Have now integrated this into my kernels posted in the lag-on-wake issue thread.
v12xke said:
Is it possible to unmount the internal SD card area while running the OS? I've used the mount / unmount options in CWM, but have not found a way to unmount /sdcard inside the OS. Wouldn't this be like cutting off the branch you are standing on? I'm currently running TnT Lite 3.1.2. Thanks.
Click to expand...
Click to collapse
I Have the same question...I dont run cwm
Posted an update for TnTLine on the other thread as well. My problem is when I reinstall AB and run it I have to force myself to get out of the game....
rcgabriel said:
Have now integrated this into my kernels posted in the lag-on-wake issue thread.
Click to expand...
Click to collapse
I think enabling twofish under crypto would fix this. Will build one later when I get home: )
Update:
I basically enabled two fish and others..The most important thing was to install Devmapper and Dev Crypt in the kernel to get it up and running..Consider this issue SOLVED.
OK got Angry Birds installed without unmounting SD. Will continue testing..Everything seems to be fine..I'm uploading..Please test...Just put clempatch.zip in your internal SD and install.
vsc said:
Posted an update for TnTLine on the other thread as well. My problem is when I reinstall AB and run it I have to force myself to get out of the game....
Click to expand...
Click to collapse
Try my fix above
It seems Galaxy Note also has this problem.
jager13 has posted this issue in code.google.com, so please anyone with this issue comment there so that google devs can know about it and fix it!
http://code.google.com/p/android/issues/detail?id=25563
==========================
please make comment on this google page asking for a fix.....let this issue make to know for google and samsung...."TILL NOW ONLY 27 COMMENTS ON GOOGLE PAGE"
I believe that many of us (if not all) should have this problem.
I got so many apps installed, so many of them are installed in SD Card automatically by Android or I manually moved them to SD Card.
(In total I have ~650 app elements in Titanium Backup and keep growing depending on what I have installed or haven't restored at any given point)
The problem is since I updated from 2.3.4 to version >= 2.3.5 even to ICS 4.0.3 LP2, LP6, LPB, LPH.
Problem:
- Power On then phone will reboot after some 2-5 minutes idle and again reboot infinitely so I cannot use my phone at all.
- If I removed my external SD Card, no more reboot.
- Or if I delete some amount of .asec files in ".android_secure" folder (where the app in sd card is saved) in the external SD Card no more reboot.
- And yes, I have done many (if not all) imaginable things: re-flash, factory reset, wipe cache, fix permission, change SD Card, reinstall from market...
- And no, this is not specific SD Card problem.
There is older thread talking about this problem but the thread is about general reboot problem so it got mixed with other kind of reboot.
After trying ICS leaks in a hope that the problem is fixed I find that it is still NOT fixed
and maybe won't be fixed if not enough people complain about this problem.
And I think Samsung developers and QA don't know this issue.
It will be shame if SGS3 still has this problem. I absolutely won't buy it.
So to check this, I hope the reader of this thread to try this (Samsung based ROM > 2.3.4 only):
- Please move as many apps as you can or all of your apps to SD Card..
- Or please install as many apps as you can from market and moved them to SD Card if not already.
- The apps number is not exact (60 maybe more), more is better, maybe related with apps size too.
(I found that when my ".android_secure" folder size in external sd card approaching ~1.5GB maybe more, the reboot problem occurs)
- And then tell here that you have infinite reboot or not in idle mode 2-5 minutes after power on. Please try 2-3 times.
- Also post your ROM/kernel version, stock or mods.
- And please check that removing the external SD Card solve the reboot problem.
Remember that u have to be at least Samsung based ROM version 2.3.5 because this problem is side effect (2.3.4 and earlier does not have this problem).
For us who has this problem, please add your post to this thread to keep it alive
and don't forget to rate high so it will get attention from other users and hopefully from Samsung.
Let's make this issue known to Samsung.
And I hope that people who got firmware leaks from Samsung can tell them about this problem/thread.
List of threads mentioning same problem:
http://forum.xda-developers.com/show....php?t=1285844
http://forum.xda-developers.com/show....php?t=1328191
http://forum.xda-developers.com/show....php?t=1102920
http://forum.xda-developers.com/show....php?t=1491671
Really strange issue, never heard of this before
Sent from my GT-I9100 using xda premium
Its not strange buddie....
U can face this problem when u installed tonns of large apps on external sd card....
Hav atry and giv a feedback bro...
If u face the same prblm then add ur comment on the google page that link i have posted
Sent from my GT-I9100 using Tapatalk 2
I just voted on the thread cause I've the same problem with different memory card from 2.3.5/6 official italian update
deskmat81 said:
I just voted on the thread cause I've the same problem with different memory card from 2.3.5/6 official italian update
Click to expand...
Click to collapse
someone saying that they haven't noticed this problem in 2.3.3 update....
after updating to 2.4 and above the problem got raised......
Installed zipsnet ICS 4.03 and I do not see the option of moving apps to SD card or rather the option to move apps to SD card is greyed out. I remember it working on ICS 4.01
Is this a bug? Is it possible to get the download link for Zipsnet ICS 4.01?
Thanks
Kris
I believe its a bug the are working on but if you use romtoolbox I believe you are still able to move apps to the sd card. As far for the link you would have to send a pm to zips to get it cause its off the download page
Odd, on some of my apps the options is grayed out as well and on others it's not. However with apps currently on my SD card the options to move them back to phone is available for all of them.
All stock just rooted, sd card fix via NEXT APP
SD Fix
That's it.
There's already a thread for this:
http://forum.xda-developers.com/showthread.php?t=2950118
http://imgur.com/ZUlGCRO
Hi, I keep getting a bug where it says my sandisk sd card is corrupt. I know it is not corrupt because it works fine in recovery, usb card reader, and in my old phone. I have tried several different aosp 6.0.1 ROMs and it seems to reproduce this bug after I install Xposed. Is there any fix or workaround for this bug? Here is some info and a couple logcat.txt files. Let me know if you need more info.
Device - Samsung Galaxy S4 SM-S975L (Straight Talk)
Current ROM - Broken-v4.9.1-jfltexx-6.0.1-OFFICIAL-20160826.zip
Xposed - xposed-v86.0-sdk23-arm-custom-build-by-wanam-20160709
Logcats - drive.google.com/folderview?id=0BxpXwWLbF2t1VlQtYXd5OEs3ZlE&usp=sharing
I guess you have to copy/paste the https links because I am not aloud to post outside links yet.