Hi, as it seems (at least to me) the issue mentioned here: http://lkml.org/lkml/2007/11/9/290 still exists in 2.6.24.2. Here's an excerpt of my syslog when starting k3b: ################################### Feb 20 11:57:20 yerbouti kernel: ata2.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x2 frozen Feb 20 11:57:20 yerbouti kernel: ata2.00: cmd a0/00:00:00:08:00/00:00:00:00:00/a0 tag 0 pio 8 in Feb 20 11:57:20 yerbouti kernel: cdb ac 00 00 00 00 00 00 00 00 01 03 00 00 00 00 00 Feb 20 11:57:20 yerbouti kernel: res 40/00:03:00:00:00/00:00:00:00:00/a0 Emask 0x4 (timeout) Feb 20 11:57:20 yerbouti kernel: ata2.00: status: { DRDY } Feb 20 11:57:21 yerbouti kernel: ata2: soft resetting link Feb 20 11:57:21 yerbouti kernel: ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300) Feb 20 11:57:51 yerbouti kernel: ata2.00: qc timeout (cmd 0xa1) Feb 20 11:57:51 yerbouti kernel: ata2.00: failed to IDENTIFY (I/O error, err_mask=0x5) Feb 20 11:57:51 yerbouti kernel: ata2.00: revalidation failed (errno=-5) Feb 20 11:57:51 yerbouti kernel: ata2: failed to recover some devices, retrying in 5 secs Feb 20 11:57:56 yerbouti kernel: ata2: hard resetting link Feb 20 11:58:01 yerbouti kernel: ata2: port is slow to respond, please be patient (Status 0x80) Feb 20 11:58:06 yerbouti kernel: ata2: COMRESET failed (errno=-16) Feb 20 11:58:06 yerbouti kernel: ata2: hard resetting link Feb 20 11:58:11 yerbouti kernel: ata2: port is slow to respond, please be patient (Status 0x80) Feb 20 11:58:16 yerbouti kernel: ata2: COMRESET failed (errno=-16) Feb 20 11:58:16 yerbouti kernel: ata2: hard resetting link Feb 20 11:58:22 yerbouti kernel: ata2: port is slow to respond, please be patient (Status 0x80) Feb 20 11:58:26 yerbouti ntpd[5117]: synchronized to 81.169.180.26, stratum 2 Feb 20 11:58:51 yerbouti kernel: ata2: COMRESET failed (errno=-16) Feb 20 11:58:51 yerbouti kernel: ata2: limiting SATA link speed to 1.5 Gbps Feb 20 11:58:51 yerbouti kernel: ata2: hard resetting link Feb 20 11:58:56 yerbouti kernel: ata2: COMRESET failed (errno=-16) Feb 20 11:58:56 yerbouti kernel: ata2: reset failed, giving up ################################### k3b will freeze, the drive won't be recognized afterwards again. Even a reboot will hang until the machine is powered off once. I've attached my kernel config and teh output of 'lcpci -vvvxxxx' Kind regards, Felix