ios - "IOSurface warning: buffer allocation failed"导致应用崩溃

Question

在使用我的 ipad 应用程序时，我收到了一系列警告(Mar 18 11:18:06 kernel[0] : IOSurface warning: buffer allocation failed. 980 x 606 fmt: 42475241 size: 2387968 bytes)超过仅 20 秒内 50 次，应用程序崩溃并出现以下报告:

Mar 18 11:18:35  ReportCrash[1428] <Notice>: Formulating crash report for process eDetail[1353]
Mar 18 11:18:35  ReportCrash[1428] <Error>: libMobileGestalt copySystemVersionDictionaryValue: Could not lookup ReleaseType from system version dictionary
Mar 18 11:18:35  ReportCrash[1428] <Notice>: Saved crashreport to /var/mobile/Library/Logs/CrashReporter/eDetail_2013-03-19-111833_iPad.plist using uid: 0  gid: 0, synthetic_euid: 501 egid: 0
Mar 18 11:18:35  com.apple.launchd[1] <Warning>: (UIKitApplication:com.****.profile***[0x1024]) Job appears to have crashed: Segmentation fault: 11
Mar 18 11:18:35  backboardd[26] <Warning>: Application 'UIKitApplication:com.****.profile***[0x1024]' exited abnormally with signal 11: Segmentation fault: 11

谁能帮我找出这个问题的根本原因并解决它。

编辑:在代码的这一点上也显示了警告:

NSString *docsDir;
NSArray *dirPaths;

filemgr = [NSFileManager defaultManager];
// Get the documents directory


dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);    
docsDir = [dirPaths objectAtIndex:0];

// Build the path to the data file
dataFilePath = [[NSString alloc] initWithString: [docsDir stringByAppendingPathComponent: @"data.archive"]];

// Check if the file already exists
if ([filemgr fileExistsAtPath: dataFilePath]){

    NSMutableDictionary *dataDict = [NSKeyedUnarchiver unarchiveObjectWithFile: dataFilePath];
    if ([dataDict count] != 0) {
        m_cUserName.text = [dataDict objectForKey:@"UserName"];
        m_cPassword.text = @"";
        if([[dataDict objectForKey:@"AccountType"] isEqualToString:@"Specialty"]){
            m_cBgImage.image = [UIImage imageNamed:@"specialityloginbg.png"];
        }else {
            m_cBgImage.image = [UIImage imageNamed:@"infusionloginbg"];
        }
    }   
}

希望对您有所帮助。

Answer 1

好的，终于找到原因和解决办法了。由于过度使用内存，操作系统无法为渲染图像分配缓冲区。在收到一系列此警告后，App 崩溃了。我减少了内存的使用，并在完成目标后立即释放了对象，我完全摆脱了这个警告。