After a successfull (?) upgrade from my old -CURRENT of Apr, 28
(usual stuff, buildworld, buildkernel, installkernel, installworld
and mergemaster) I was unable to boot from yesterday night  :(

Yes, now it works, but first a little overview of my hardware:
- MoBo Tyan Trinity S1590S, last bios, with K6-2/350
- 512MB ram pc133 (2x256)
- ad0: 6197MB <IBM-DHEA-36480> [12592/16/63] at ata0-master UDMA33
- acd0: CD-RW <YAMAHA CRW4001> at ata1-master PIO3
- acd1: CDROM <ATAPI CD-ROM DRIVE 40X MAXIMUM> at ata1-slave PIO4

I rebuild because changed network card from ex0 to fxp0  :-)

Now boot hangs after discovery ad0 and try to access cd burner
even if I start with kernel.GENERIC (or kernel.GENERIC with debug)
and loops around a reset of ide bus.

Sorry for manually copy messages, I haven't serial console  :(
-----8<-----
acd0: REQUEST_SENSE command timeout - resetting
ata1: resetting devices .. done
[...]
-----8<-----
and again, again, again (every 10" or less).  Sometimes, instead
of REQUEST_SENSE I got a MODE_SENSE_BIG, the rest the same).

Also tryed with a cd inside, but no differences.

Things go better starting with old kernel, from Apr 28, cd burner
is identified and mounted (but system is a little explosive, and
all commands make core around  :-)

As last resort, before removing ide cable from cd rom and burner I
disabled second ide from BIOS and IT_WORKS.  pfiuuu...
Maybe something related to acpi or burncd changes?
But I (think I) don't have ACPI...
# acpidump
acpidump: Can't find ACPI information

Can I try to debug a little better?  Can this help (or is already know?)

I have from first day (3 year ago) APM disabled in BIOS, never added
it to kernel configuration, and bios setting for OS PnP to no.


Riccardo.

PS: I can live w/out cdrom and burner for a little...

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