On Mon, Mar 10, 2014 at 01:03:41PM +0100, Michael Kerrisk (man-pages) wrote: > The kernel keeps data in memory to avoid doing (relatively > slow) disk reads and writes. This improves performance, but if > the computer crashes, data may be lost or the file system cor??? > rupted as a result. sync ensures that everything in memory is > written to disk. This part looks correct. > sync should be called before the processor is halted in an > unusual manner (e.g., before causing a kernel panic when debug??? > ging new kernel code). In general, the processor should be > halted using the shutdown(8) or reboot(8) or halt(8) commands, > which will attempt to put the system in a quiescent state > before calling sync(2). (Various implementations of these com??? > mands exist; consult your documentation; on some systems one > should not call reboot(8) and halt(8) directly.) This kind of information does not seem useful for a user of a command line utility, and the last bit seems incorrect at least for Linux. -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
