Re: Process in D state (was Re: 2.6.0-test5-mm2)

Rob Landley [off-list ref] wrote:

But, twice in a row now I've made this happen:

  1391 pts/1    S      0:00 /bin/bash
  1419 pts/1    S      0:00 /bin/sh ./build.sh
  1423 pts/1    S      0:00 /bin/bash 
 /home/landley/pending/newfirmware/make-stat
  1447 pts/1    D      0:04 tar xvjf 
 /home/landley/pending/newfirmware/base/linux
  1448 pts/1    S      0:37 bzip2 -d

 All I have to do is run my script, it tries to extract the kernel tarball, and 
 tar hangs in D state.

 How do I debug this?  (Is there some way to get the output of Ctrl-ScrLk to go 
 to the log instead of just the console?  My system isn't currently hung, it's 
 just got a process that is.  This process being hung prevents my partitions 
 from being unmounted on shutdown, which is annoying.)

sysrq-T followed by `dmesg -s 1000000 > foo' should capture it.

 Other miscelanous bugs: cut and paste only works some of the time (it pastes 
 blanks other times, dunno if this was -test5 or -mm2; it worked fine in 
 -test4).

vgacon? fbcon? X11?

 The key repeat problem is still there, although still highly intermittent.

I think Andries says that some keyboards just forget to send up codes. 
We'll probably need some kernel boot parameter to support these, using the
keyboard's silly native autorepeat.

 The boot hung enabling swap space once.  I don't know why.  (Init was already 
 running and everything...)

Probably the O_DIRECT locking bug: I had `rpmv' getting stuck on boot for a
while.  mm3 fixed that.  
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