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From: Peter Wemm <peter@FreeBSD.org>
Date: Sun, 4 May 2008 23:29:38 +0000 (UTC)
To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
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Cc: 
Subject: cvs commit: src/sys/arm/at91 uart_dev_at91usart.c src/sys/dev/dcons
 dcons_os.c src/sys/dev/ofw ofw_console.c src/sys/dev/sio sio.c
 src/sys/dev/uart uart_core.c src/sys/kern subr_kdb.c
 src/sys/pc98/cbus sio.c src/sys/sun4v/sun4v hvcons.c src/sys/sys ...
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peter       2008-05-04 23:29:38 UTC

  FreeBSD src repository

  Modified files:
    sys/arm/at91         uart_dev_at91usart.c 
    sys/dev/dcons        dcons_os.c 
    sys/dev/ofw          ofw_console.c 
    sys/dev/sio          sio.c 
    sys/dev/uart         uart_core.c 
    sys/kern             subr_kdb.c 
    sys/pc98/cbus        sio.c 
    sys/sun4v/sun4v      hvcons.c 
    sys/sys              kdb.h 
  Log:
  Expand kdb_alt_break a little, most commonly used with the option
  ALT_BREAK_TO_DEBUGGER.  In addition to "Enter ~ ctrl-B" (to enter the
  debugger), there is now "Enter ~ ctrl-P" (force panic) and
  "Enter ~ ctrl-R" (request clean reboot, ala ctrl-alt-del on syscons).
  
  We've used variations of this at work.  The force panic sequence is
  best used with KDB_UNATTENDED for when you just want it to dump and
  get on with it.
  
  The reboot request is a safer way of getting into single user than
  a power cycle.  eg: you've hosed the ability to log in (pam, rtld, etc).
  It gives init the reboot signal, which causes an orderly reboot.
  
  I've taken my best guess at what the !x86 and non-sio code changes
  should be.
  
  This also makes sio release its spinlock before calling KDB/DDB.
  
  Revision  Changes    Path
  1.14      +13 -2     src/sys/arm/at91/uart_dev_at91usart.c
  1.21      +24 -10    src/sys/dev/dcons/dcons_os.c
  1.39      +17 -2     src/sys/dev/ofw/ofw_console.c
  1.474     +23 -3     src/sys/dev/sio/sio.c
  1.24      +17 -3     src/sys/dev/uart/uart_core.c
  1.26      +35 -11    src/sys/kern/subr_kdb.c
  1.249     +23 -4     src/sys/pc98/cbus/sio.c
  1.8       +16 -2     src/sys/sun4v/sun4v/hvcons.c
  1.7       +7 -0      src/sys/sys/kdb.h