✎ soc:2009:dverkamp:journal:week10

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====== Daniel Verkamp: Automated regression testing ======

===== Journal Week 10 =====

==== Monday, July 27 ====

Attempting to debug Test::Machine::Qemu lockup with -curses and -monitor on a PTY.

Noted that with -curses and -serial stdio, no lockup occurs, so this seems to be unique to -curses.

Tracing monitor and curses operation; seemingly qemu-char.c is used for generic "char devices", which at least the monitor is.

==== Tuesday, July 28 - Wednesday, July 29 ====

''strace'' of QEMU with -curses and -monitor simultaneously seems to indicate that it is in fact writing to the monitor PTY:

  open("/dev/pts/5", O_RDWR|O_NONBLOCK)   = 11
  ioctl(11, SNDCTL_TMR_TIMEBASE or TCGETS, {B38400 -opost -isig -icanon -echo ...}) = 0
  ioctl(11, SNDCTL_TMR_START or TCSETS, {B115200 opost -isig -icanon -echo ...}) = 0
  
  [...]
  
  write(11, "QEMU 0.10.5 monitor - type 'help'"..., 56) = 56
  write(11, "(qemu) "..., 7)              = 7


==== Thursday, July 30 ====

Attach the correct end of the monitor PTY to QEMU: [[http://git.etherboot.org/?p=people/dverkamp/gpxe.git;a=commitdiff;h=185f366fb4fae22406bc6d31089fa5f0216ce29e|commit]]

Taking a short break from debugging -curses output (I plan to continue work in other areas using -serial and gPXE's CONSOLE_SERIAL if I can't figure it out in the short term).

Implemented generic configuration file abstraction: [[http://git.etherboot.org/?p=people/dverkamp/gpxe.git;a=commitdiff;h=aee3639bf122863d190bdaf791bb583c67a80287|commit]]

Trace: • initramfsbko • ubuntu_aoe • winpe • start • probsbkoromomatic • howtos

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