Hello Darrick,
thank you for the information, this issue has gone with xfs_io built
from xfsrpogs 4.15.1
Cheers
On Fri, Mar 16, 2018 at 1:04 PM, Darrick J. Wong
<darrick.wong@xxxxxxxxxx> wrote:
> On Fri, Mar 16, 2018 at 11:21:20AM +0800, Po-Hsu Lin wrote:
>> Hello,
>>
>> I'm experiencing the test hang issue caused by test generic/430 with
>> ext4/xfs/btrfs partition created on /dev/sdb
>>
>> It looks like this issue was caused by the following command to copy
>> beyond the target file:
>> /usr/sbin/xfs_io -i -f -c "copy_range -s 4000 -l 2000
>> /home/ubuntu/test/test-430/file" "/home/ubuntu/test/test-430/beyond"
>>
>> The -l works only with <= 1000, any other number that will make it
>> larger the size of test-430/file (5000) are not working.
>>
>> The copied file will have a correct MD5 as expected, but the command
>> will never return:
>> e68d4a150c4e42f4f9ea3ffe4c9cf4ed beyond
>>
>> This issue could be seen from 4.10rc1, with 4.9.87 kernel, the test
>> will fail with all of the copy action, so it won't get stuck.
>>
>>
>> Release: Ubuntu Artful
>> Kernel:4.16.0-041600rc5-generic
>> xfsprogs version 4.9.0+nmu1ubuntu1
>
> Could you try this with xfsprogs 4.15.1? iirc Anna sent in a patch a
> while ago to fix an infinite looping error in io/copy_file_range.c.
>
> Ah, yes, 43141802cd ("xfs_io: Improvements to copy_range return code
> handling").
>
> --D
>
>> BugLink: https://bugs.launchpad.net/bugs/1755999
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