kern/68735: Cant boot 5.2.1-RELEASE GENERIC kernel

Adam Retter adam at
Tue Jul 6 12:10:25 PDT 2004

>Number:         68735
>Category:       kern
>Synopsis:       Cant boot 5.2.1-RELEASE GENERIC kernel
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jul 06 19:10:24 GMT 2004
>Originator:     Adam Retter
>Release:        5.2.1-RELEASE
(Just Me)
I have been trying to cvsup from 5.2-RELEASE to 5.2.1-RELEASE. 5.2-RELEASE had been installed for severall weeks and working fine.

I can boot the 5.2-RELEASE GENERIC kernel, but if I build the 5.2.1-RELEASE GENERIC kernel after a cvsup of /usr/src and then a buildworld and reboot the machine. The system hangs whilst booting the 5.2.1-RELEASE GENERIC kernel with the following messages -

Mounting Root from ufs: /dev/ad8s2a
ad8: TIMEOUT READ_DMA retrying (2 retries left) LBA=51199379
GEOM: destroy disk ad8 dp=0xc6a4ea60
ad8: WARNING - removed from configuration

>From I see this "Significantly improved ATA/IDE and SATA handling. Problems with timeouts, error recovery, and certain master/slave configurations have been largely addressed."

Unfortunately these significant improvements have actually broken my SATA support :-( This is most upsetting as my SATA drives wouldnt work under 4.x, 5 or 5.1 but did work nicely under 5.2, but 5.2.1 seems to be a step backwards.

I have an MSI 848P-Neo Motherboard that uses the Intel ICH5 SATA Chipset and I am using two Maxtor SATA hard-disks (1x120GB and 1x160GB).

Can someone help me or can I help someone debug this problem and get my SATA support working again, I really dont want to go to -CURRENT as this is my workstation machine, I usually use -RELENG.


Get an MSI 848P-Neo motherboard and a SATA hard-disk and try and boot 5.2.1-RELEASE.

Merge the SATA code for the ICH5 from 5.2 with that from 5.2.1???2

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