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Re: sparse dumps (was: WAPL panic)
On Mon, Nov 12, 2012 at 07:46:51AM -0700, Sverre Froyen wrote:
> On Nov 9, 2012, at 08:01, Chuck Silvers <chuq%chuq.com@localhost> wrote:
> I have tested your patches for NetBSD-current on VMware Fusion (under Mac
> OSX). Breaking into ddb and entering "reboot 0x104" results in a good core
> dump. As you note, the kernel copy is invalid.
> Thanks for the patches! I cannot remember the last time I was able to get a
> workable core dump on amd64.
thanks for the confirmation, I went ahead and checked in the changes.
> PS "vmstat -M netbsd.0.core -N /netbsd" results in
> vmstat: can't dereference kptr 0x7f7fffffd780
> vmstat: invalid translation (invalid level 4 PDE)
> adding specific options, e.g., -e , work fine.
I fixed this too, but the values printed don't appear very useful
since most of them are not available in a crash dump.
> PPS Is it now safe to enable core dumps on systems where the dump partition
> is a sub-partition of a raidframe RAID 1 partition? This used to warned
> against in the old raidframe documentation but the warnings are gone in
> recent versions.
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