On Tue, 11 Feb 2003 11:40:45 -0500, Dan Malek <dan at embeddededge.com> writes: >I've looked at it. I know it well. I wrote it. I know how its used. >xmon and kgdb format their own strings/packets and expect read/write of >a simple uart fifo.
The point was, and always has been, can it be guaranteed that kgdb/xmon will never output a character with decimal value 10? As a simple logic exercise, it cannot be guaranteed - of course, in practice it is unlikely to happen, because they encode everything as two hex digits. But someone in the future may decide to make everything scroll nicely on output by adding a (redundant) linefeed to the end of every packet - then the kernel starts crashing in early boot when KGDB or XMON is enabled and they will have no idea why. >> http://lists.linuxppc.org/linuxppc-embedded/200205/msg00268.html > >Well, ahhh, there isn't anything mentioned there about fixing bugs. It wasn't mentioned because it is trivial - the code as it stood was logically inconsistent - I fixed it, as have (many?) others. >From >your description it's all about yet another scc uart configuration method. >I have lots of those on the shelf, all conflicting, that always seem to >be useful to the person/platform/application. The easiest way to keep >everyone (un)happy is to leave things alone. I used to apply those, >a new one every other week, and the only person happy about it was the >last one that had the patch applied. :-) This illustrates my point(s) - linuxppc on the 8260 is stuck with the amazingly bad uart configuration/management arrangement it has had for years (and which was spawned back in the 8xx days) because I don't work for the right company. Like I said - I will shut up now - it isn't that important to me. I made my points in the previous message, and it is on the public record (such as it is), but now I don't want to distract either of us from our work. Cheers! Murray... -- Murray Jensen, CSIRO Manufacturing & Infra. Tech. Phone: +61 3 9662 7763 Locked Bag No. 9, Preston, Vic, 3072, Australia. Fax: +61 3 9662 7853 Internet: Murray.Jensen at csiro.au Hymod project: http://www.msa.cmst.csiro.au/projects/Hymod/ ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
