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Message-ID: <20091117015655.GA8683@suse.de> Date: Mon, 16 Nov 2009 17:56:55 -0800 From: Greg KH <gregkh@...e.de> To: JiSheng Zhang <jszhang3@...il.com> Cc: linux-kernel@...r.kernel.org, linux-mm@...ck.org, stable@...nel.org Subject: Re: [BUG]2.6.27.y some contents lost after writing to mmaped file On Mon, Nov 16, 2009 at 11:38:57AM +0800, JiSheng Zhang wrote: > Hi, > > I triggered a failure in an fs test with fsx-linux from ltp. It seems that > fsx-linux failed at mmap->write sequence. > > Tested kernel is 2.6.27.12 and 2.6.27.39 Does this work on any kernel you have tested? Or is it a regression? > Tested file system: ext3, tmpfs. > IMHO, it impacts all file systems. > > Some fsx-linux log is: > > READ BAD DATA: offset = 0x2771b, size = 0xa28e > OFFSET GOOD BAD RANGE > 0x287e0 0x35c9 0x15a9 0x80 > operation# (mod 256) for the bad datamay be 21 > ... > 7828: 1257514978.306753 READ 0x23dba thru 0x25699 (0x18e0 bytes) > 7829: 1257514978.306899 MAPWRITE 0x27eeb thru 0x2a516 (0x262c bytes) > ******WWWW > 7830: 1257514978.307504 READ 0x2771b thru 0x319a8 (0xa28e bytes) > ***RRRR*** > Correct content saved for comparison > ... Are you sure that the LTP is correct? It wouldn't be the first time it wasn't... thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.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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