Date: Sun, 18 Jul 2004 15:54:58 -0400 (EDT) From: Andrew Gallatin <gallatin@cs.duke.edu> To: Doug Rabson <dfr@nlsystems.com> Cc: freebsd-current@freebsd.org Subject: Re: Excellent job on the firewire support! Message-ID: <16634.54674.966908.540880@grasshopper.cs.duke.edu> In-Reply-To: <200407182039.10773.dfr@nlsystems.com> References: <16634.47272.768935.436137@grasshopper.cs.duke.edu> <200407182039.10773.dfr@nlsystems.com>
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Doug Rabson writes: > On Sunday 18 July 2004 18:51, Andrew Gallatin wrote: > > Hi, > > > > I just wanted to say that I used FreeBSD's firewire and sbp-II > > support for the first time this weekend. It seems to be fast (over > > 26MB/sec writes, 34MB/sec reads to a LaCie 160GB drive), and robust. > > It works well on non-i386 platforms -- I'm using it to back up an > > amd64, and to serve as a root device for a FreeBSD/powerpc machine. > > > > All in all, it totally exceeded my expectations. Thank you very > > much| > > Wait till you try debugging using gdb over firewire with dcons. An all > round positive experience :-) It would be nice to remove my Comtrol Rocketport serial card, and the 8 serial cables leading across the middle of the room to my shelf of machines and replace it with one firewire cable leading to a firewire hub. But, as a firewire newbie, I have some questions: 1) Is any firewire PCI adapter just as good as any other in terms of performance, and FreeBSD support? (prices seem to range from $10 to $100) 2) Is dcons usable after a panic (ie, DDB or KDB_TRACE)? Or is it only usable for remote-gdb? 3) Is dcons endian and pointer-size agonstic? Can I run consoles to an amd64 and a powerpc box from an x86? 4) Does the loader know about dcons? Eg, can I do "unload <ret> boot kernel.test" using dcons? Thanks, Drew
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