dump routine for mlx devices
Andrew Kinney
andykinney at advantagecom.net
Wed Apr 23 08:42:42 PDT 2003
Hello,
I need to get a crash dump and the only disk controller on the
system in question is an eXtremeRAID1100 (DAC1164P) handled
through the mlx driver. I'm running FreeBSD 4.7-release + security
fixes.
dumping to dev #mlxd/0x20001, offset 9372672
dump failed, reason: device doesn't support a dump routine
Before I go try to write my own dump routine: Has anyone else
already invented that wheel or is the wheel too difficult a pursuit in
this case due to peculiarities of this hardware?
I've only had a quick glance at the source under /usr/src/sys/dev/
and at first glance the only devices that appear to support crash
dumps are aac_disk, ata_disk, ida_disk, and ccd.
That last one (ccd) could be a point of interest. Is it possible to
create a ccd device from a spare mlxd device? If so, is it also
feasible to swap and dump to that ccd device or would it fail
because the "real" device didn't support dumps?
Sincerely,
Andrew Kinney
President and
Chief Technology Officer
Advantagecom Networks, Inc.
http://www.advantagecom.net
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