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02-20-2012, 11:17 AM #1SpringBoard crashing on double-click home
Sometimes when I double press the home button SpringBoard will crash, but quite unpredictably. The problem usually lasts for about 15 minutes every couple of days. During that timeframe every double click will crash it - even in Substrate Safe Mode. I cannot, for the life of me, figure it out! The fact that it crashes in Safe Mode leads me to believe that some extension that doesn't use Mobile Substrate is the issue. However it's so erratic and infrequent that disabling things one-by-one is impractical.
I've attached relevant logs if anyone understands these things... I've been trying to figure this out on my own for a while now but have not been successful.
This may be the cause or closely related as it matches the reported time of the crash. The thing is, however, ******* now uses Mobile Substrate and it shouldn't cause a crash in Safe Mode. Right?
Feb 20 12:06:06 Morris-iPad installd: MS:Notice: Loading: /Library/MobileSubstrate/DynamicLibraries/*******.dylib Feb 20 12:06:06 Morris-iPad installd: ******* loaded into /usr/libexec/installd Feb 20 12:06:08 Morris-iPad SpringBoard: *** Assertion failure in -[SBAppSwitcherController _iconForDownload:], /SourceCache/SpringBoard/SpringBoard-1812.6.2/SBAppSwitcherController.m:543 Feb 20 12:06:08 Morris-iPad SpringBoard: *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Could not find the downloadIcon in the iconModel'
02-21-2012, 01:52 PM #2
I've had the same problem for about a week now, and it's been quite annoying. I finally started looking in the system log, and found the same "internal inconsistency" errors occurring. Google matched me with your posting. For the record, i am using a stock iPad2 (not jail broken) and on the current release of the OS.
This is the first I've heard of this problem. I would normally expect this to be a hardware problem, based on the way it manifests, but that doesn't fit all times that this has happened.
If anyone is tracking down this problem and needs rob ore logs, please contact me.
We also might want to list the last months worth of new apps added, and see if it's something new that we brought on board.
Last edited by bbergman; 02-21-2012 at 08:01 PM.
02-21-2012, 04:01 PM #3More info
Here are a couple other data points. Do any of these resonate with your situation?
1) I see the same behavior when I enable the multitouch gestures and pull the task bar up. This is good evidence that this is NOT a hardware problem. If it was only happening with the button press, then it might be hardware. But there is no correlation between the multitouch functionality and the button. So, it's a software issue somewhere.
2) I have another weird situation where I have apps that have not completely downloaded from the app store. In fact, one I can't seem to get rid of. So, when I update my apps, I often get a "App XYZ could not be downloaded from the app store" type error messages. Maybe related or maybe not.
3) I have used my iPad in the past for development.
Tech details: 64GB iPad2 wifi version only, 659 apps installed, 1.1GB free.
02-21-2012, 07:26 PM #4
It happened again while I was typing this. Interestingly enough, I copied my whole post before pulling up the switcher and it remained in the pasteboard. Phew.
Also, as far back as my log goes, it has happened exactly 5 times before returning to normal. Just an interesting correlation. Do you experience that?
Last edited by hmorris94; 02-21-2012 at 07:33 PM.
02-21-2012, 08:01 PM #5
The only apps nearby are for Line2, but that's because it's loading itself in memory each reboot, so it doesn't surprise me. The apps before the crash aren't consistent, but I also haven't tried hard to read into them.
My log entry is here.
And like you, I googled that too, and got only one Apple forums posting. Interestingly enough, THAT thread was very recent (Jan 20, I think), and included about a dozen replies all complaining about the same thing. There was conspicuously no reply from Apple. It wouldn't surprise me if their app purchase database got all mucked up and they don't want to admit it. ;-)
Whether or not the two issues are related is debatable, but it's interesting that we both have the same two issues.
Even when I give the iPad a complete reboot, I can sometimes get this to happen again, so it's not like when I run app X, then it happens immediately afterwards (which was one of my original theories).
Here are two links to the "can't be downloaded" message. It definitely seems to be a recent phenomenon, as all the google hits are within the past couple of weeks.
That second link seems to have the problem defined, and someone even mentioned they reported it to Apple, who isn't responding. It definitely sounds like our problem. Now I wonder if any of them have the double-click problem? I think I'll ask.
Last edited by bbergman; 02-21-2012 at 08:07 PM.
02-22-2012, 12:43 PM #6
When it happened the fist time, switching multi-touch gestures off and on fixed it. The second time (today), it did not. In fact the popup was shown while the twitter app was updated (the app listed in the pop up was loaded on my iPad!). After the alert, the twitter app icon did appear transparent, with title (no waiting or loading indicator) and I could not click it. So I launched it from the multitasking-bar. After exiting it using double-click springboard crashed and that continued always from that time on.
I deleted twitter app, but problem persisted.
I re-installed twitter app, successfully, and the problem was gone. So I assume, that the springboards opened-app-list data gets somehow corrupted when apps state are "bad" (caused by whatever reason) and showing/rendering the multitask menu crashes springboard.
One idea could be to try to get rid of all listed apps in the multitasking menu and also delete possible "bad" apps. With bad apps I mean those apps which have somehow had issues during download from appstore such as listed above.
02-26-2012, 07:44 PM #7
I think you have the right idea, case42. It would seem legitimate anyhow.
For the past week or so, I haven't seen the crashing behavior. The "XX apps" errors is less frequent too, but I have seen it twice in the past few days.
I'll keep monitoring for other comments and for possible solutions.
03-02-2012, 07:23 PM #8
I have a jail broken iPad 2 and my spring board crashes when I try to use gravity board. :-(. Any ideas of why this is happening? Thanks!!
08-21-2012, 08:03 AM #9
I'm having the same weird issue here... Seems that installing and running iWipeCache fixes the problem... May be it has to do with some missing icon on Springboard, which the multitasking bar tries to load ??
08-22-2012, 04:17 PM #10
Hi, I had this, but I can't remember what I did to cure it at the time as I had other issues which included
Unified IPod slowing spotlightsearch and IconSupport causing Safari to crash. But have a read of this post as I also had a multitasking bar background issue which was fixed here by clearing out the springboard cache. I also removed FaceBook This.
Folder background image suddenly downscaled? (4S / Absinthe jailbreak)