Re: Thinkpad CD-ROM hotplug with ATA_CAM
On 09/14/11 12:15, Andriy Gapon wrote: on 14/09/2011 18:11 Boris Kochergin said the following: camcontrol rescan all I think that this command may screw up communication between kernel and HDD from which the OS runs. It works under normal circumstances--I can run camcontrol rescan all on a system with ATA_CAM and the root filesystem isn't disturbed. Perhaps using a specific bus number would work better. Somewhat, but results are still undesirable. camcontrol rescan 1 (the CD-ROM is listed as being on scbus1) executes, stays in the cbwait state for 30 seconds, then the system locks up. camcontrol reset 1 has the same behavior as camcontrol rescan all in that the system locks up instantly. -Boris ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Re: Thinkpad CD-ROM hotplug with ATA_CAM
on 16/09/2011 15:55 Boris Kochergin said the following: On 09/14/11 12:15, Andriy Gapon wrote: on 14/09/2011 18:11 Boris Kochergin said the following: camcontrol rescan all I think that this command may screw up communication between kernel and HDD from which the OS runs. It works under normal circumstances--I can run camcontrol rescan all on a system with ATA_CAM and the root filesystem isn't disturbed. Perhaps using a specific bus number would work better. Somewhat, but results are still undesirable. camcontrol rescan 1 (the CD-ROM is listed as being on scbus1) executes, stays in the cbwait state for 30 seconds, then the system locks up. camcontrol reset 1 has the same behavior as camcontrol rescan all in that the system locks up instantly. Weird. Can you provoke a panic when that happens? Maybe you can contact mav@ directly and he'd be interested in debugging this case. -- Andriy Gapon ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Re: Thinkpad CD-ROM hotplug with ATA_CAM
On Fri, Sep 16, 2011 at 6:30 AM, Andriy Gapon a...@freebsd.org wrote: on 16/09/2011 15:55 Boris Kochergin said the following: On 09/14/11 12:15, Andriy Gapon wrote: on 14/09/2011 18:11 Boris Kochergin said the following: camcontrol rescan all I think that this command may screw up communication between kernel and HDD from which the OS runs. It works under normal circumstances--I can run camcontrol rescan all on a system with ATA_CAM and the root filesystem isn't disturbed. Perhaps using a specific bus number would work better. Somewhat, but results are still undesirable. camcontrol rescan 1 (the CD-ROM is listed as being on scbus1) executes, stays in the cbwait state for 30 seconds, then the system locks up. camcontrol reset 1 has the same behavior as camcontrol rescan all in that the system locks up instantly. Weird. Can you provoke a panic when that happens? Maybe you can contact mav@ directly and he'd be interested in debugging this case. I fear that BIOS may have some issue. I have a T43 and found that, if I booted with the DVD installed, atacontrol (this was prior to ATA-CAM) would allow me to detach, but if I then inserted a hard drive and tried to attach it, the system would lock up. If I booted with a hard drive in the bay, I could detach, change drives, and attach with no problems. I don't recall if I could replace the hard drive with a DVD, though and I don't have physical access to that system ATM. Still, this sounds rather similar to what I saw and it was unique to the T43. I have had several other ThinkPads, all of which allow me to swap out the DVD for a different drive including the T520 I am using to enter this reply. -- R. Kevin Oberman, Network Engineer - Retired E-mail: kob6...@gmail.com ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Re: Thinkpad CD-ROM hotplug with ATA_CAM
On Fri, 16 Sep 2011, Kevin Oberman wrote: I fear that BIOS may have some issue. I have a T43 and found that, if I booted with the DVD installed, atacontrol (this was prior to ATA-CAM) would allow me to detach, but if I then inserted a hard drive and tried to attach it, the system would lock up. If I booted with a hard drive in the bay, I could detach, change drives, and attach with no problems. I don't recall if I could replace the hard drive with a DVD, though and I don't have physical access to that system ATM. Still, this sounds rather similar to what I saw and it was unique to the T43. I have had several other ThinkPads, all of which allow me to swap out the DVD for a different drive including the T520 I am using to enter this reply. It's not entirely clear that this is relevant, but my T400 has very odd behavior with the CD drive either disappearing or taking a very long time to probe on warm boots. Linux (or grub? I don't remember.) also has some trouble finding the root device (hard disk) on warm boots, but FreeBSD does fine. -Ben Kaduk ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Thinkpad CD-ROM hotplug with ATA_CAM
Ahoy. I have some Thinkpad T40-T43s running -CURRENT (as recent as yesterday's sources) with ATA_CAM enabled. If I remove the CD-ROM and proceed to run camcontrol rescan all, the system hangs with the cursor still at the end of the the line. Is there a correct way of doing this, or does it just not work right now? Back in the old ATA days, I'd be able to detach the channel with atacontrol, remove the CD-ROM, and put it back without any trouble. -Boris ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
Re: Thinkpad CD-ROM hotplug with ATA_CAM
on 14/09/2011 18:11 Boris Kochergin said the following: camcontrol rescan all I think that this command may screw up communication between kernel and HDD from which the OS runs. Perhaps using a specific bus number would work better. -- Andriy Gapon ___ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to freebsd-current-unsubscr...@freebsd.org
