3 Results for Bug Labs

Recent Bug Report Details Data Loss in ext4; Ts'o Explains Cause and Workarounds

By way of Heise Online comes more detailed information about what's causing some to lose data in systems using the new ext4 file system. The ext4 file system, which is slated to eventually replace ext3 as the default file system of choice in many Linux distributions, can experience significant data loss after system crashes or unclean shutdowns.

Ted Ts'o, Linux Foundation's CTO and maintainer of the ext4 file system, says that the loss is due to how ext4 writes to disk. He says ext4, and newer file systems such as XFS and Btrfs, use delayed allocation. This means that writing data to disk can take up to a minute (compared to ext3's write time of about five seconds). The longer write time improves system performance and organization of data on the hard drive. Ts'o says that the ext4 team is working out a solution, but it's an issue that would benefit from being addressed from all angles.



Android-Powered G1 Mobile Phone Flaw Patched

On October 24th, as Lisa reported, a serious vulnerability was discovered in the Google Android powered G1 mobile phone.

Though security researchers classified the flaw in the Android browser as serious, Google assured users that the risk wasn't necessarily as dire as it seemed, due to the way the Android operating system restricts each application to its own area.

CNet News reporter Stephen Shankland says his G1 was patched on Saturday through a quick system update.



Likely Cause of Intel e1000e Bug Discovered

Intel logoThis week, the Linux kernel and Intel developer teams announced they had discovered the probable cause of the e1000e bug. This bug was particularly destructive, as it would corrupt the EEPROM/NVM of some Intel ethernet adapter chipsets, completely disabling them. Though this issue was patched to prevent damage to these components prior to the 2.6.27 kernel's final release, the actual reason for the corruption was unclear.