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Diffstat (limited to 'sys-utils/sync.8')
| -rw-r--r-- | sys-utils/sync.8 | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/sys-utils/sync.8 b/sys-utils/sync.8 new file mode 100644 index 000000000..f8bb704ff --- /dev/null +++ b/sys-utils/sync.8 @@ -0,0 +1,38 @@ +.\" Copyright 1992, 1993 Rickard E. Faith (faith@cs.unc.edu) +.\" May be distributed under the GNU General Public License +.TH SYNC 8 "20 November 1993" "Linux 0.99" "Linux Programmer's Manual" +.SH NAME +sync \- flush Linux filesystem buffers +.SH SYNOPSIS +.B sync +.SH DESCRIPTION +.B sync +executes +.BR sync (2), +which flushes the filesystem buffers to disk. +.B sync +should be called before the processor is halted in an unusual manner (i.e., +before causing a kernel panic when debugging new kernel code). In general, +the processor should be halted using the +.BR reboot "(8), or " halt (8) +commands, which will attempt to put the system in a quiescent state before +calling +.BR sync (2). + +From Linus: "Note that +.B sync +is only guaranteed to schedule the dirty blocks for writing: it can +actually take a short time before all the blocks are finally written. If +you are doing the +.B sync +with the expectation of killing the machine soon after, please take this +into account and sleep for a few seconds. [The +.BR reboot (8) +command takes these precautions.] +.SH "SEE ALSO" +.BR sync (2), +.BR update (8), +.BR reboot (8), +.BR halt (8) +.SH AUTHOR +Linus Torvalds (torvalds@cs.helsinki.fi) |