I can confirm the bug. Problem started after upgrade from Ubuntu 8.04 LTS to Ubuntu 10.04. Sometimes there is only short freeze, but sometimes the only solution is to reboot.
I have also changed the disk to the new one and I have tried to install new version of Ubuntu there. The installation process freezed during formatting disk. Typical kernel log: [ 1129.000045] ata3.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 1129.000101] ata3.00: failed command: WRITE DMA [ 1129.000137] ata3.00: cmd ca/00:08:4f:00:00/00:00:00:00:00/e0 tag 0 dma 4096 out [ 1129.000139] res 40/00:00:00:4f:c2/00:00:00:00:00/00 Emask 0x4 (timeout) [ 1129.000233] ata3.00: status: { DRDY } [ 1132.381799] [drm:drm_mode_getfb] *ERROR* invalid framebuffer id [ 1134.040024] ata3: link is slow to respond, please be patient (ready=0) [ 1139.024032] ata3: device not ready (errno=-16), forcing hardreset [ 1139.024041] ata3: soft resetting link [ 1139.204245] ata3.00: configured for UDMA/100 [ 1139.204251] ata3.00: device reported invalid CHS sector 0 ** Tags added: apport-collected -- Hard disk write/read freezes for 10 seconds several times in session https://bugs.launchpad.net/bugs/569680 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs