Messages in this thread | | | Date | Fri, 11 Feb 2005 14:17:49 +0100 | From | Bartlomiej Zolnierkiewicz <> | Subject | Re: [CHECKER] Does sys_sync (ext2, 2.6.x) flush metadata? |
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Hi,
On Thu, 10 Feb 2005 23:59:53 -0800 (PST), Junfeng Yang <yjf@stanford.edu> wrote: > > Hi, > > We're working on a file system checker and have a question regarding what > sys_sync actually does. It appears to us that sys_sync should sync both > data and metadata, and wait until both data and metadata hit the disk > before it returns. Is this true for all the file systems (especially > ext2) for kernel 2.6.x? I've gotten many "error" traces for ext2, where > directory entries are not flushed to disk after sys_sync. In other words, > even if users do call sys_sync, a crash after sys_sync call can still > cause file losses. Is this intended?
I don't know what exactly you are doing but do you remember about disabling write caching on your disks in case of doing real hard crashes?
Regards, Bartlomiej - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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