On Wed, Feb 25, 2009 at 8:08 PM, Dan Harnett <dan...@harnett.name> wrote: > It's a shame I don't have this kind of luck with lottery tickets. I'm > able to reproduce the hang still using both -current and the latest > amd64 snap. To reproduce, I just continuously scp a large file to > another machine while 'apmd -C' is running. 'apmd -L', 'apmd -H', or > not running apmd works fine. I'm able to reproduce regardless of AC > status. It's frozen completely when it happens. I can't even break > into ddb. Rather than sit there and wait for god knows how long to > trigger it (usually happens quickly), I play some music, run the scp in > a loop, and just wait to hear it. I don't know if it is any indication > that the machine is stuck in an uninterruptable loop somewhere or just > the behavior of the sound hardware, but once it hangs, the song goes > into a quick repetitive loop. Like a second or so of the song just > keeps repeating.
Ok, there are several code points here, and I'm having trouble keeping track of them all and who's machine worked how when. First, there's A. This is the code that shipped in 4.4. Then we have B. This was the code that went in ~2 months ago. Then there was C, part of B backed out, but much like A, (call it A') for a few days. Then we went back to B for a brief time. Now we are at D, all of B backed out. I'll call this A''. So there are basically 2 varieties of the code, A and B. A and A'' should be identical, except for other unrelated changes in the kernel. The first question is, did anyone experience these problems with 4.4? If you are having trouble, is your system stable with B? The looping sound is very common whenever a machine freezes. The sound chip has a small buffer, and until told otherwise, will just keep playing it.
