I'm not too happy about the result either, but at least it has less
chance of backfiring.
This particular feature could be called "a mess" without offending
anybody.
If the client requests that the error recovery code retry a selection
timeout, it will be retried after half a second. The delay is to give the
device time to recover.
For most of these drivers, I only added selection timeout retries where
they were also retrying unit attention type errors. The sa(4) driver calls
saerror() in a number of places, but most of them don't request retrying
unit attentions.
Also, bump the default minimum CD changer timeout from 2 to 5 seconds and
the maximum timeout from 10 to 15 seconds. Some Pioneer changers seem to
have trouble with the shorter timeout.
Reviewed by: gibbs
- first program lock a region in a file,
- second program wait on the lock,
- first program extend the region,
- second program interrupted by a signal.
and ISA DMA channels (ie: on most PCI systems, they are not.. they are
on the ISA side of the PCI-ISA bridge and could be duplicated if there
were multiple PCI-ISA bridges, say in a laptop docking station), while
the APIC resources would be global on SMP systems.
Also, revert a previous change, change some printfs back to panics.
that big a deal just yet and isn't worth a whole line on the boot screen.
This could change later in the face of multi-ISA-bus (eg: laptop docking
stations with two independent ISA busses) and SMP/APIC systems. The Alpha
already has multiple interrupt destinations to deal with.
development that leads to lots of crashes during boot.
I have made a 'reinstall' target (like in ports, and reinstall.debug)
This is most useful if you want to keep /kernel.old as a known bootable
kernel. If you test a new kernel and have to reboot for a fix, a
'make reinstall' will install the new kernel over the top of the old
non-viable one, leaving the old one untouched. This is mainly meant
for development, not general users.
