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The data-loss bug afflicts the newest 2.4.20 version of the heart, or
Although the bug was reported while the 2.4.20 version was still in testing, it wasn't fixed until early Friday morning, two weeks after final release.
To counteract such tracking problems in the future, Linux programmers have begun using more formal bug-tracking tools. Bugs and security problems are big issues today because of the ever-wider use of computer networks and the increasing importance of corporate data. Microsoft, Sun Microsystems, Linux fans and others all are keenly aware of the publicity benefits of crash-proof code, and the perils of problems.
Data-loss problems are dire--companies devote much of their computing budgets to keeping their information from vanishing into the ether.
However, the risks of the recent Linux data-loss bug are reduced because it only appears in a particular circumstance: First, an administrator has to select an unusual mode for Linux's
The data-loss problem is "not very severe," said programmer Andrew Morton in an e-mail interview. It was Morton who
Morton added that the bug is contingent on using ext3 in "a specialized mode, which in practice is rather slow. It doesn't offer any realistic advantages over the default...mode, and nobody uses it much. This is why the bug lay dormant for three months."
Red Hat, the top Linux seller, said its customers are only affected by the bug if they downloaded Red Hat updates that incorporate version 2.4.18-17 or later of the Linux kernel. The company made those updates available for versions 7.1, 7.2, 7.3 and 8.0 of Red Hat Linux. Its Advanced Server product isn't affected.
The most recent updates from No. 2 Linux seller
The data-loss problem was originally found by programmer Nick Piggin, who said it may have affected all 2.4.19 kernels in addition to version 2.4.20. Morton, however, believes Piggin's first bug report in July for preliminary versions of 2.4.19 is likely a different--but related--bug that's harder to trigger.
Buttoning up Tux patches
Though this bug slipped through the cracks for a time, Linux programmers are working to create a less freewheeling process for tracking and fixing problems in their code. The Linux community, a self-directed group of programmers who collectively develop the Unix clone, doesn't have a suit-and-tie dress code, but it is becoming more formal.
For example, in November the
In addition, Linux programmers have
In a related development, the open-source world has become more tightly tied to the existing bug-tracking industry,
