(Cc: lsml) On May 27 Jonathan Isom wrote to linux1394-user: > After upgrading to 2.6.39, I'm getting "rejecting I/O to offline > device" repeatedly in dmesg. Full log is attached. > I can load disks into the DVD drives, however the drives a not usable. > The Powerfile C200 is a 200 Disk DVD > Changer with 2 drives. I didn't turn on the Changer till 249508.718311. Which is: [249508.718311] firewire_core: phy config: card 0, new root=ffc1, gap_count=5 [249509.320382] firewire_core: created device fw1: GUID 003060f200002759, S400 [249509.458787] scsi8 : SBP-2 IEEE-1394 [249509.659575] firewire_sbp2: fw1.0: logged in to LUN 0000 (0 retries) [249509.661749] scsi 8:0:0:0: CD-ROM TOSHIBA DVD-ROM SD-M1212 1032 PQ: 0 ANSI: 0 CCS [249509.666218] sr1: scsi3-mmc drive: 32x/32x cd/rw xa/form2 cdda tray [249509.666479] sr 8:0:0:0: Attached scsi CD-ROM sr1 [249509.666611] sr 8:0:0:0: Attached scsi generic sg5 type 5 [249509.668791] firewire_sbp2: fw1.0: logged in to LUN 0001 (0 retries) [249509.671056] scsi 8:0:0:1: CD-ROM TOSHIBA DVD-ROM SD-M1212 1032 PQ: 0 ANSI: 0 CCS [249509.676162] sr2: scsi3-mmc drive: 32x/32x cd/rw xa/form2 cdda tray [249509.676385] sr 8:0:0:1: Attached scsi CD-ROM sr2 [249509.676514] sr 8:0:0:1: Attached scsi generic sg6 type 5 [249509.678677] firewire_sbp2: fw1.0: logged in to LUN 0002 (0 retries) [249509.683634] scsi 8:0:0:2: Medium Changer Escient Powerfile C200 04A PQ: 0 ANSI: 3 OK. [249509.685951] ch0: reading element address assigment page failed! Don't know if this is bad or not. [249509.685962] ch0: INITIALIZE ELEMENT STATUS, may take some time ... [249509.686719] ch0: ... finished [249509.686729] ch 8:0:0:2: Attached scsi changer ch0 [249509.686948] ch 8:0:0:2: Attached scsi generic sg7 type 8 OK. [249539.712075] firewire_sbp2: fw1.0: sbp2_scsi_abort [249549.712062] firewire_sbp2: fw1.0: sbp2_scsi_abort [249549.712287] sr 8:0:0:0: Device offlined - not ready after error recovery [249549.712393] sr 8:0:0:0: rejecting I/O to offline device [249583.704061] firewire_sbp2: fw1.0: sbp2_scsi_abort [249593.704070] firewire_sbp2: fw1.0: sbp2_scsi_abort [249593.704307] sr 8:0:0:1: Device offlined - not ready after error recovery [249593.704423] sr 8:0:0:1: rejecting I/O to offline device [249593.706254] sr 8:0:0:0: rejecting I/O to offline device [249593.706276] sr 8:0:0:0: rejecting I/O to offline device [249593.706948] sr 8:0:0:0: rejecting I/O to offline device [249593.706976] sr 8:0:0:0: rejecting I/O to offline device [249593.709258] sr 8:0:0:1: rejecting I/O to offline device [...repeated almost 2000 times...] [250542.004258] sr 8:0:0:0: rejecting I/O to offline device [250542.004269] sr 8:0:0:0: rejecting I/O to offline device [250542.004340] sr 8:0:0:1: rejecting I/O to offline device [250542.004350] sr 8:0:0:1: rejecting I/O to offline device All three SCSI units were probed and attached successfully. This involves successful execution of a few basic SCSI commands. 30 seconds after that, and again after additional 10 seconds and further 34 seconds + additional 10 seconds, firewire-sbp2 logs that in total four SCSI commands timed out. The kernel's SCSI subsystem decides to take the two DVD-ROM logical units offline. Why the time-outs happened is is not clear. Also, I have no idea what could be done with the kernel's SCSI subsystem so that it logs *which* commands timed out. Was the 2.6.39 kernel update the only change that you did on your system, or were there userland updates too? If yes, maybe you have a program now that sends weird commands that crash the Powerfile's firmware. -- Stefan Richter -=====-==-== -=-= ===-- http://arcgraph.de/sr/ -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
