Lot of strange leaks in instruments only on device (no leaks in simulator)

I started working with instruments and have a lot of leaks. I don't have an idea how to solve them.

Instrument show that i have leak in this line:

NSArray *topLevelObjects = [[NSArray alloc] initWithArray:[[NSBundle mainBundle] loadNibNamed:@"SearchResultsTableViewCell" owner:self options:nil]];

What is wrong with this?

// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {

    static NSString *CellIdentifier = @"SearchResultsTableViewCell";

 SearchResultsTableViewCell *cell = (SearchResultsTableViewCell*)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];

 if (cell == nil) {
  NSArray *topLevelObjects = [[NSArray alloc] initWithArray:[[NSBundle mainBundle]
         loadNibNamed:@"SearchResultsTableViewCell"
         owner:self options:nil]];

  for (id currentObject in topLevelObjects) {
   if ([currentObject isKindOfClass:[UITableViewCell class]]) {
    cell = (SearchResultsTableViewCell *) currentObject;
    break;
   开发者_JAVA百科}
  }
  [topLevelObjects release], topLevelObjects = nil     ;
 }

    Product *product = [productMutableArray objectAtIndex:indexPath.row];

 cell.textLabel.text = product.title;
 cell.detailTextLabel.text = product.desc1;
 UIImageView *imageView = nil;
 if (product.photo == nil) {
  imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"ph38x38.jpg"]];
 } else {
  imageView = [[UIImageView alloc] initWithImage:product.photo];
 }
 imageView.frame = CGRectMake(10., 3., 38., 38.);
 [cell addSubview:imageView];
 [imageView release];

    return cell;
}

I also have a lot of other leaks, but instruments doesn't even show line in the code, for example there is a leak: GenerlaBlock-64 - UIKit - GetContextStack How can I solve it? where should i look for it?

I looked for some kind of tutorials, but all of them show only trival examples with retain count, alloc, release

Threads aren't the real problem. It's the "text" property of UILabel.

cell.textLabel.text = product.title;
cell.detailTextLabel.text = product.desc1;

This property can only be set on the main thread.

Call performSelectorOnMainThread instead:

[cell.textLabel performSelectorOnMainThread:@selector(setText:) withObject:product.title waitUntilDone:NO];
[cell.detailTextLabel performSelectorOnMainThread:@selector(setText:) withObject:product.desc1 waitUntilDone:NO];

Why don't you just remove the initWithArray: and use

NSArray *topLevelObjects = [[NSBundle mainBundle]
         loadNibNamed:@"SearchResultsTableViewCell"
         owner:self options:nil];

(and you have to remove the release and set nil line too)

// EDIT: try to set the owner:nil

Threads were making all the problems. I was doing forks all the time without returning to main thread. That was the problem.