On 19.12.2012 23:48, Stan Hoeppner wrote: > On 12/19/2012 7:40 PM, Matthias Schniedermeyer wrote: > > > I had thought about issuing a > > 'sync', because the previous incarnation of the bug flashed before my > > inner eye. But by the time i had shutdown X and got to the > > command-prompt i had already forgotten to type 'sync' and went straight > > for 'reboot' > > When did you last read the man pages for reboot and shutdown? reboot > issues a sync automatically unless you specify > > -n Don't sync before reboot or halt. Note that the kernel and > storage drivers may still sync. > > (note the disclaimer) > > and even though the shutdown man page doesn't state so explicitly, I'm > pretty darn sure that shutdown issues a sync before halting or rebooting. > > Thus, you shouldn't have to manually call sync before issuing your > favorite system restart command. If sync isn't being called, maybe > there's an issue with the versions of these commands shipped with your > distro, or other type of problem. That's strange, i looked into the source of /sbin/halt and it does contain a call to 'sync'. So it either didn't work, or i hit the umount-bug that David mentioned. When i rebooted to 3.7(.0), from a buggy 3.6.2, i 'sync'ed manually before rebooting and also manually 'umount'ed all "physical" FSes except the rootfs and this time i didn't get a corruption. All mount-syslog-lines for the 3.7 boot say the filesystem was clean. So when it is time to reboot to 3.7.2, which hopefully contains the bugfix, i still intent to do a wetware (half-)shutdown before the actual 'reboot'. The statistic is 2 out of 3 in favor of corruptions in the last 3 reboots of this particular computer. -- Matthias _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
