Hi
Thanks for that.
From what I see, it appears that this is not causing any problematic behaviour
and those YBUG()s are really warnings of unexpected conditions that need some
more investigation.
There are various versions of bonnie lying around. Can you tell me which one
you're using?
Thanks
-- CHarles
On Thursday 22 January 2009 22:56:10 yi li wrote:
> Hi,
>
> I run bonnie++ ver1.94 on Linux-2.6.28 on Yaffs2/Nand. The yaffs2 is
> downloaded from CVS (Jan 22, 2009).
> I am testing on ADI BF548-Ezkit. While running bonnie++ file operation
> tests, there is bug triggered while doing deleting testing.
> What is the cause of this bug?
>
> root:/> flash_eraseall /dev/mtd4
> Erasing 128 Kibyte @ 7e60000 -- 50 % complete.
> Skipping bad block at 0x07e80000
>
> Skipping bad block at 0x07ea0000
> Erasing 128 Kibyte @ fc00000 -- 100 % complete.
> root:/> mount -t yaffs2 /dev/mtdblock4 /mnt/
> yaffs: dev is 32505860 name is "mtdblock4"
> yaffs: passed flags ""
> yaffs: Attempting MTD mount on 31.4, "mtdblock4"
> block 1013 is bad
> block 1014 is bad
> yaffs_read_super: isCheckpointed 0
> root:/> bonnie++ -u root -d /mnt -s 0
> Using uid:0, gid:0.
> Create files in sequential order...
> save exit: isCheckpointed 1
> done.
> Stat files in sequential order...done.
> Delete files in sequential order...==>> yaffs bug: fs/yaffs2/yaffs_guts.c
> 6832 ==>> yaffs bug: fs/yaffs2/yaffs_guts.c 6759
> ==>> yaffs bug: fs/yaffs2/yaffs_guts.c 6759
> save exit: isCheckpointed 1
> done.
> Create files in random order...save exit: isCheckpointed 1
> done.
> Stat files in random order...done.
> Delete files in random order...==>> yaffs bug: fs/yaffs2/yaffs_guts.c 6832
> ==>> yaffs bug: fs/yaffs2/yaffs_guts.c 6759
> ==>> yaffs bug: fs/yaffs2/yaffs_guts.c 6759
> save exit: isCheckpointed 1
> done.
> Version 1.94 ------Sequential Create------ --------Random
> Create-------- blackfin -Create-- --Read--- -Delete-- -Create--
> --Read--- -Delete-- files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
> /sec %CP 16 101 97 4357 76 473 59 100 97 8677 100 230 80
> Latency 24000us 16000us 24000us 24000us 4000us
> 31999us
>
> More information on the system:
> root:/> cat /proc/yaffs
> YAFFS built:Jan 22 2009 11:46:45
> $Id: yaffs_fs.c,v 1.71 2009/01/22 00:45:54 charles Exp $
> $Id: yaffs_guts.c,v 1.74 2009/01/18 23:24:08 charles Exp $
>
> Device 0 "file system(nand)"
> startBlock......... 0
> endBlock........... 2015
> totalBytesPerChunk. 2048
> nDataBytesPerChunk. 2048
> chunkGroupBits..... 0
> chunkGroupSize..... 1
> nErasedBlocks...... 1504
> nReservedBlocks.... 5
> blocksInCheckpoint. 1
> nTnodesCreated..... 16400
> nFreeTnodes........ 16400
> nObjectsCreated.... 16500
> nFreeObjects....... 16396
> nFreeChunks........ 128832
> nPageWrites........ 0
> nPageReads......... 0
> nBlockErasures..... 1036
> nGCCopies.......... 513
> garbageCollections. 784
> passiveGCs......... 784
> nRetriedWrites..... 0
> nShortOpCaches..... 10
> nRetireBlocks...... 0
> eccFixed........... 0
> eccUnfixed......... 0
> tagsEccFixed....... 0
> tagsEccUnfixed..... 0
> cacheHits.......... 0
> nDeletedFiles...... 0
> nUnlinkedFiles..... 65540
> nBackgroudDeletions 0
> useNANDECC......... 1
> isYaffs2........... 1
> inbandTags......... 0
>
> About the Nand flash:
> BF5xx on-chip NAND FLash Controller Driver, Version 1.2 (c) 2007
> Analog Devices, Inc.
> bf5xx-nand bf5xx-nand.0: page_size=256, data_width=8, wr_dly=3, rd_dly=3
> NAND device: Manufacturer ID: 0x20, Chip ID: 0xda (ST Micro NAND
> 256MiB 3,3V 8-bit)
> Creating 2 MTD partitions on "NAND 256MiB 3,3V 8-bit":
> 0x00000000-0x00400000 : "linux kernel(nand)"
> 0x00400000-0x10000000 : "file system(nand)"
>
> Regards,
>
> -Yi
>
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