Тестовый файл ones.bz2 (1 ГБ символов '1'), при его распаковке очень просто и наглядно повторяется ошибка
ones.bz2 (application/x-bzip), 783 bytes, created by Vadim Zelenin on 2011-02-22 15:41:17 MSK
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Creator: Vadim Zelenin
Created: 2011-02-22 15:41:17 MSK
Size: 783 bytes

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Attachments on bug 25132: 4810 | 4811 | 4812