Christoph Hellwig said the following on 2012-1-5 0:53:
> This still fails in my 32-bit test VM:
>
yeah:(
This case will exercise IO at large file with as following condition:
- below upperbound
- upperbound
- above upperbound
But in 32-bit, the case cannot satisfy the condition unless upperbound=16.
When upperbound=16, the case will hung.
The following steps will hung.
# uname -a
Linux Fedora-16-x86 3.1.0-7.fc16.i686.PAE #1 SMP Tue Nov 1 20:53:45 UTC 2011 i686 i686 i386 GNU/Linux
# rpm -q xfsprogs
xfsprogs-3.1.5-1.fc16.i686
# mount /dev/sda10 /sda10/
# xfs_info /dev/sda10
meta-data=/dev/sda10 isize=256 agcount=4, agsize=305088 blks
= sectsz=512 attr=2
data = bsize=4096 blocks=1220352, imaxpct=25
= sunit=0 swidth=0 blks
naming =version 2 bsize=4096 ascii-ci=0
log =internal bsize=4096 blocks=2560, version=2
= sectsz=512 sunit=0 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
# cd /sda10/
# xfs_io -f -c "pwrite 17592186040320 512" tmp
wrote 512/512 bytes at offset 17592186040320
512.000000 bytes, 1 ops; 0.0000 sec (12.850 MiB/sec and 26315.7895 ops/sec)
# xfs_bmap -v tmp
This will hung:(
What is wrong with the steps or xfs wrong?
--
Best Regards,
Peng
> --- 071.out 2009-05-10 16:48:46.000000000 +0000
> +++ 071.out.bad 2012-01-04 16:47:05.000000000 +0000
> @@ -40,14 +40,14 @@
>
>
> Writing 512 bytes, offset is +0 (direct=false)
> -pwrite64: File too large
> +wrote 512/512 bytes at offset <OFFSET>
> Reading 512 bytes (direct=false)
> -read 0/512 bytes at offset <OFFSET>
> +read 512/512 bytes at offset <OFFSET>
>
> and so on
>
>
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