Re: [PATCH] Prevent create IMSM volume with size smaller than 1M or chunk

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On 04/25/2018 05:25 AM, Roman Sobanski wrote:
> Block creation of the imsm volume when given size is smaller than 1M and
> print appropriate message.
> 
> Commit b53bfba6119d3f6f56eb9e10e5a59da6901af159
> (imsm: use rounded size for metadata initialization) introduces issue with
> rounding volume sizes smaller than 1M to 0. There is an inconsistency when
> size smaller than 1M was given depends of what we give as target device:
> 1) When block devices was given created volume has maximum available size.
> 2) When container symlink was given created volume has size 0. Additionally
> it causes below call trace:
> 
> [69587.891556] WARNING: CPU: 28 PID: 22485 at ../drivers/md/md.c:7582 md_seq_show+0x764/0x770 [md_mod]
> [69588.066405] Call Trace:
> [69588.066409]  seq_read+0x336/0x430
> [69588.066411]  proc_reg_read+0x40/0x70
> [69588.066412]  __vfs_read+0x26/0x140
> [69588.066414]  vfs_read+0x89/0x130
> [69588.066415]  SyS_read+0x42/0x90
> [69588.066417]  do_syscall_64+0x74/0x140
> [69588.066419]  entry_SYSCALL_64_after_hwframe+0x3d/0xa2
> 
> Signed-off-by: Roman Sobanski <roman.sobanski@xxxxxxxxx>
> ---
>  super-intel.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)

Applied!

Thanks
Jes
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