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Please mark this as submitted. Thanks.

- Jason Lowe-Power


On Aug. 7, 2016, 4:12 p.m., Nicolas Derumigny wrote:
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> http://reviews.gem5.org/r/3582/
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> (Updated Aug. 7, 2016, 4:12 p.m.)
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> 
> Review request for Default.
> 
> 
> Repository: gem5
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> 
> Description
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> 
> syscall_emul: Corrected a bug on the syscall "read()".
> Read() should not write anything when returning 0 (EOF).
> This patch does not correct the same bug occuring for :
> 
> nbr_read=read(file, buf, nbytes) 
> 
> When nbr_read<nbytes, nbytes bytes are copied into the virtual
> RAM instead of nbr_read. If buf is smaller than nbytes, a 
> page fault occurs, even if buf is in fact bigger than nbr_read.
> 
> 
> Diffs
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>   src/sim/syscall_emul.cc cdb94f2332a6 
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> Diff: http://reviews.gem5.org/r/3582/diff/
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> 
> Testing
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> 
> Works with CERE codelets (https://github.com/benchmark-subsetting/cere),
> correcting the issue when replacing dumps in memory.
> 
> 
> Thanks,
> 
> Nicolas Derumigny
> 
>

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