Re: can see my reboot command idle 22 minutes :(

You should probably update the system ASAP.  Soren has made major
improvements to the ATA layer, and may in fact address any issues
you're having in the past.

Is the IDE disk an IBM/Hitachi drive per chance?  I've seen this
happen on them.  It's a known ""feature"", which (from what I understand)
was supposed to be removed in later models, but I haven't bothered to
check.

Also: after upgrading, consider installing ports/sysutils/smartmontools
and enabling SMART on the drive/in the BIOS.  You may have a drive
that's going bad -- IDE isn't known for reliability these days.

Hope this helps.

-- 
| Jeremy Chadwick                                 jdc at parodius.com |
| Parodius Networking                        http://www.parodius.com/ |
| UNIX Systems Administrator                   Mountain View, CA, USA |
| Making life hard for others since 1977.                             |

On Thu, Aug 05, 2004 at 06:10:00PM +0000, Bjoern A. Zeeb wrote:
> Hi,
> 
> have a 1 year old 5.1-RELEASE system with SCSI and one 120GB IDE
> disk.
> 
> The IDE disk got used for daily dumps since january.
> Tonight I got this error:
> 
>  kernel: ad0: READ command timeout tag=0 serv=0 - resetting
>  kernel: ata0: resetting devices ..
> 
> serial console had been unuseable at that point but sshing/telnetting
> onto the system still worked.
> 
> A dump had still been running. kill -9 didn't help much nor did
> reboot. The reboot simply hung other services terminated so no longer
> been able to telnet onto the machine.
> 
> Hands on resetted the machine and it got up booting fine, serial
> console worked. It started background fsck and I went away.
> 
> 45 minutes later fsck simply hang, had not been able to kill -9
> it.
> 
> this time dmesg showed:
>   ad0: WRITE command timeout tag=0 serv=0 - resetting
>   ata0: resetting devices ..
> 
> Stopped some services by hand and did some funny things,
> commented out the ide disk in /etc.fstab and typed reboot.
> 
> Well the machine ist still up an running:
> 
> bz_at_machine: {107} w
>  7:58PM  up  1:06, 6 users, load averages: 0.05, 0.16, 0.08
> USER             TTY      FROM              LOGIN_at_  IDLE WHAT
> bz               p0       shell             7:30PM    26 ls -l /dump/
> bz               p1       shell             7:32PM    25 sync
> bz               p2       shell             7:33PM    22 reboot
>                                                         ^^^^^^^^^^
> bz               p3       shell             7:39PM    11 atacontrol reinit 0
> ..
> bz               p5       shell             7:47PM     - w
> 
> see the reboot there :((
> 
> I can still log in by ssh, do funny things but everything accessing
> the IDE disk simply hangs...
> 
> 
> Unfortunately this is 5.1-RELEASE so no
> 	machine# sysctl debug.enter_debugger=ddb
> 	sysctl: unknown oid 'debug.enter_debugger'
> 
> 
> hands on again ...
> 
> -- 
> Bjoern A. Zeeb				bzeeb at Zabbadoz dot NeT
> _______________________________________________
> freebsd-current_at_freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-current
> To unsubscribe, send any mail to "freebsd-current-unsubscribe_at_freebsd.org"