我正在运行我的应用程序20-30分钟，我已经检查了内存泄漏，其中没有内存泄漏。我在应用程序中使用MapView，它将其位置发送到服务器，20分钟后，它完全正常工作，但20到25分钟后，由于日志，它崩溃了
Sep 10 17:05:06 unknown UserEventAgent[19] <Notice>: jetsam: kernel termination snapshot being created
Sep 10 17:05:06 unknown com.apple.launchd[1] <Notice>: (UIKitApplication:com.apple.mobilemail[0x585e]) Exited: Killed: 9
Sep 10 17:05:06 unknown com.apple.launchd[1] <Notice>: (UIKitApplication:com.ephlux.VeloCity[0xfbfb]) Exited: Killed: 9
Sep 10 17:05:06 unknown com.apple.launchd[1] <Notice>: (UIKitApplication:com.iappventures.gtalk[0x75e0]) Exited: Killed: 9
Sep 10 17:05:06 unknown SpringBoard[27] <Warning>: Application 'VeloCity' exited abnormally with signal 9: Killed: 9
Sep 10 17:05:07 unknown com.apple.locationd[68] <Notice>: NOTICE,Location icon should now not be visible
Sep 10 17:05:07 unknown SpringBoard[27] <Warning>: Application 'Mail' exited abnormally with signal 9: Killed: 9
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Sep 10 17:05:07 unknown SpringBoard[27] <Warning>: Application 'iGtalk' exited abnormally with signal 9: Killed: 9
Sep 10 17:05:08 unknown kernel[0] <Debug>: Sandbox: ignoring builtin profile for platform app: /private/var/stash/Applications/MobileMail.app/MobileMail
Sep 10 17:05:08 unknown kernel[0] <Debug>: launchd[608] Builtin profile: container (sandbox)
Sep 10 17:05:08 unknown kernel[0] <Debug>: launchd[608] Container: /private/var/mobile/Applications/124A80FF-4E09-4E60-8D3C-CE8C194F4801 [69] (sandbox)
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Sep 10 17:05:09 unknown ReportCrash[605] <Notice>: MS:Notice: Installing: (null) [ReportCrash] (675.00)
Sep 10 17:05:09 unknown iLocation[608] <Notice>: MS:Notice: Installing: com.iappventures.gtalk [iLocation] (675.00)
Sep 10 17:05:09 unknown MobileMail[606] <Notice>: MS:Notice: Installing: com.apple.mobilemail [MobileMail] (675.00)
Sep 10 17:05:09 unknown iLocation[608] <Notice>: MS:Notice: Loading: /Library/MobileSubstrate/DynamicLibraries/Activator.dylib
Sep 10 17:05:09 unknown MobileMail[606] <Notice>: MS:Notice: Loading: /Library/MobileSubstrate/DynamicLibraries/Activator.dylib
Sep 10 17:05:09 unknown ReportCrash[605] <Error>: Saved crashreport to /Library/Logs/CrashReporter/LowMemory-2012-09-10-170509.plist using uid: 0 gid: 0, synthetic_euid: 0 egid: 0
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Sep 10 17:05:11 unknown iLocation[608] <Warning>: Sound ID has been created
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Sep 10 17:05:13 unknown com.apple.locationd[68] <Notice>: NOTICE,Location icon should now be visible
Sep 10 17:05:13 unknown iLocation[608] <Warning>: labelRect ={{10, 0}, {70, 41}}
Sep 10 17:05:13 unknown iLocation[608] <Warning>: self.textField.frame ={{100, -1}, {210, 43}}
Sep 10 17:05:13 unknown iLocation[608] <Warning>: labelRect ={{10, 0}, {70, 40}}
Sep 10 17:05:13 unknown iLocation[608] <Warning>: self.textField.frame ={{100, -1.5}, {210, 43}}
Sep 10 17:05:13 unknown iLocation[608] <Warning>: labelRect ={{10, 0}, {70, 39}}
Sep 10 17:05:13 unknown iLocation[608] <Warning>: self.textField.frame ={{100, -1}, {210, 43}}
Sep 10 17:05:13 unknown iLocation[608] <Warning>: labelRect ={{10, 0}, {70, 39}}
Sep 10 17:05:13 unknown iLocation[608] <Warning>: self.textField.frame ={{100, -1.5}, {210, 43}}
Sep 10 17:05:13 unknown spd[609] <Notice>: MS:Notice: Installing: (null) [spd] (675.00)
Sep 10 17:05:13 unknown wifid[49] <Error>: WiFi:[368971513.595893]: Disable WoW requested by "spd"
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Sep 10 17:05:15 unknown com.apple.locationd[68] <Notice>: NOTICE,Location icon should now not be visible
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Sep 10 17:10:07 unknown SpringBoard[27] <Notice>: Posting 'com.apple.iokit.hid.displayStatus' notifyState=0
Sep 10 17:10:07 unknown SpringBoard[27] <Notice>: MultitouchHID: detection mode: 0->255
当应用程序的内存使用量逐渐增加时，这种情况更有可能发生。当前台应用程序需要更多内存时，操作系统会逐个关闭后台应用程序，以便为前台应用程序提供尽可能多的内存。但是，当前台应用程序的内存使用量超过可用内存量时，操作系统也会杀死前台应用程序并生成崩溃报告。