src-test2/sys/dev/syscons/syscons.c, branch release/7.0.0_cvs

This commit was manufactured by cvs2svn to create tag

2008-02-24T05:45:17Z

'RELENG_7_0_0_RELEASE'. This commit was manufactured to restore the state of the 7.0-RELEASE image.

MFC rev. 1.457:

2008-01-28T12:49:33Z

Do not dereference NULL scp in the case the screen is not opened. Instead, return ENXIO to the ioctl caller. Approved by: re (kensmith)

Serialize output routine of terminal emulator (te_puts()) by a lock.

2007-09-20T04:05:59Z

- The output routine of low level console is not protected by any lock by default. - Increment and decrement of sc->write_in_progress are not atomic and this may cause console hang. - We also have many other states used by emulator that should be protected by the lock. - This change does not fix interspersed messages which PRINTF_BUFR_SIZE kernel option should fix. Approved by: re (bmah) MFC after: 1 week

Fix a bug that will cause a process that calls the VT_WAITACTIVE ioctl

2007-09-19T03:59:33Z

to become unkillable when that process is sent a termination signal. The process will sit in waitvt looping in the kernel, and chewing up all available CPU until the system is rebooted. Submitted by: Jilles Tjoelker Reviewed by: bde Approved by: re (kensmith) MFC after: 1 week

- Change comments and asserts to reflect the removal of the global

2007-06-04T23:57:32Z

scheduler lock. Tested by: kris, current@ Tested on: i386, amd64, ULE, 4BSD, libthr, libkse, PREEMPTION, etc. Discussed with: kris, attilio, kmacy, jhb, julian, bde (small parts each)

Replace magic numbers for console bell types with defines.

2006-11-16T12:27:51Z

Sometimes the vty switching has to be delayed; the vty

2006-11-06T19:06:07Z

to be switched to is saved in sc->delayed_next_scr and the actual switch is performed later. It was possible to get into the endless loop when attempting to switch to a closed vty (which is not allowed and beep-alerted when attempted) and when the visual beep was in effect. This caused sc->delayed_next_scr to never be reset and endless attempts to switch to a closed vty and endless visual beeping. How to repeat: - boot into single-user - run "kbdcontrol -b visual" - quickly press Alt+F2 two times PR: kern/68016 X-MFC after: 6.2-RELEASE

Sweep kernel replacing suser(9) calls with priv(9) calls, assigning

2006-11-06T13:42:10Z

specific privilege names to a broad range of privileges. These may require some future tweaking. Sponsored by: nCircle Network Security, Inc. Obtained from: TrustedBSD Project Discussed on: arch@ Reviewed (at least in part) by: mlaier, jmg, pjd, bde, ceri, Alex Lyashkov , Skip Ford , Antoine Brodin

Fix our ioctl(2) implementation when the argument is "int". New

2006-09-27T19:57:02Z

ioctls passing integer arguments should use the _IOWINT() macro. This fixes a lot of ioctl's not working on sparc64, most notable being keyboard/syscons ioctls. Full ABI compatibility is provided, with the bonus of fixing the handling of old ioctls on sparc64. Reviewed by: bde (with contributions) Tested by: emax, marius MFC after: 1 week

Introduce a spinlock for synchronizing access to the video output hardware

2006-09-13T15:48:15Z

in syscons. This replaces a simple access semaphore that was assumed to be protected by Giant but often was not. If two threads that were otherwise SMP-safe called printf at the same time, there was a high likelyhood that the semaphore would get corrupted and result in a permanently frozen video console. This is similar to what is already done in the serial console drivers.