Date: Mon, 16 Jul 2007 07:55:13 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-hackers@freebsd.org Cc: David Malone <dwmalone@maths.tcd.ie>, freebsd-current@freebsd.org, Victor Snezhko <snezhko@indorsoft.ru>, Ivan Voras <ivoras@fer.hr> Subject: Re: Debugging times Message-ID: <200707160755.14498.jhb@freebsd.org> In-Reply-To: <469B2787.9010302@fer.hr> References: <f6u94s$v6o$1@sea.gmane.org> <uk5t1xa08.fsf@indorsoft.ru> <469B2787.9010302@fer.hr>
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On Monday 16 July 2007 04:08:39 am Ivan Voras wrote: > Victor Snezhko wrote: > > > Also, this was a surprise to an unexperienced me, but I have also > > found that vfs_mount initializes RTC with the latest timestamp found > > on local file systems - this explains why kernel "worked" for Ivan on > > a hard drive. It didn't actually work, but used timestamp which was > > stored on filesystem during unmount. > > Wow - this is just astonishing - why would a file system have anything > to do with the RTC? It's more that we use the filesystem's timestamp as a way to validate the timestamp from the RTC and to do a fixup if the RTC appears to be dead. -- John Baldwin
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