Lines Matching +full:sync +full:- +full:read
22 - 0 - disable sysrq completely
23 - 1 - enable all functions of sysrq
24 - >1 - bitmask of allowed sysrq functions (see below for detailed function
27 2 = 0x2 - enable control of console logging level
28 4 = 0x4 - enable control of keyboard (SAK, unraw)
29 8 = 0x8 - enable debugging dumps of processes etc.
30 16 = 0x10 - enable sync command
31 32 = 0x20 - enable remount read-only
32 64 = 0x40 - enable signalling of processes (term, kill, oom-kill)
33 128 = 0x80 - allow reboot/poweroff
34 256 = 0x100 - allow nicing of all RT tasks
45 via a keyboard. Invocation of any operation via ``/proc/sysrq-trigger`` is
52 You press the key combo :kbd:`ALT-SysRq-<command key>`.
63 You press :kbd:`ALT-STOP-<command key>`, I believe.
70 Press :kbd:`ALT - Print Screen` (or :kbd:`F13`) - :kbd:`<command key>`.
71 :kbd:`Print Screen` (or :kbd:`F13`) - :kbd:`<command key>` may suffice.
78 Write a single character to /proc/sysrq-trigger.
84 echo t > /proc/sysrq-trigger
89 echo _reisub > /proc/sysrq-trigger
115 here will display help. but ``h`` is easy to remember :-)
119 ``j`` Forcibly "Just thaw it" - filesystems frozen by the FIFREEZE ioctl.
128 ``n`` Used to make RT tasks nice-able
140 ``s`` Will attempt to sync all mounted filesystems.
145 ``u`` Will attempt to remount all mounted filesystems read-only.
148 ``v`` Causes ETM buffer dump [ARM-specific]
156 ``y`` Show global CPU Registers [SPARC-64 specific]
160 ``0``-``9`` Sets the console log level, controlling which kernel messages
195 ``sync(s)`` is handy before yanking removable medium or after using a rescue
196 shell that provides no graceful shutdown -- it will ensure your data is
197 safely written to the disk. Note that the sync hasn't taken place until you see
201 running system's point of view, they will be remounted read-only. The remount
204 The loglevels ``0``-``9`` are useful when your console is being flooded with
221 sysrq[0-9] (see above).
228 :kbd:`alt-sysrq-z`).
237 pre-defined value of 99
238 (see ``KEY_SYSRQ`` in ``include/uapi/linux/input-event-codes.h``), or
239 which don't have a SysRq key at all. In these cases, run ``showkey -s`` to find
293 to temporarily up the console loglevel using :kbd:`alt-sysrq-8` or::
295 echo 8 > /proc/sysrq-trigger
303 Just ask them on the linux-kernel mailing list:
304 linux-kernel@vger.kernel.org
309 - Written by Mydraal <vulpyne@vulpyne.net>
310 - Updated by Adam Sulmicki <adam@cfar.umd.edu>
311 - Updated by Jeremy M. Dolan <jmd@turbogeek.org> 2001/01/28 10:15:59
312 - Added to by Crutcher Dunnavant <crutcher+kernel@datastacks.com>