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Re: [PATCH] xfs: Print a warning if the filesystem needs to be repaired
From: |
Javier Martinez Canillas |
Subject: |
Re: [PATCH] xfs: Print a warning if the filesystem needs to be repaired |
Date: |
Mon, 3 May 2021 16:24:56 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 |
Hello Daniel,
On 4/29/21 4:32 PM, Daniel Kiper wrote:
> On Thu, Apr 29, 2021 at 11:05:20AM +0200, Carlos Maiolino wrote:
>> On Thu, Apr 22, 2021 at 05:15:31PM +0200, Javier Martinez Canillas wrote:
>>> Hello Vladimir,
>>>
>>> On 4/22/21 4:56 PM, Vladimir 'phcoder' Serbinenko wrote:
>>>> Filesystems are not mounted in GRUB. This patch will result in GRUB
>>>> outputting a warning on every access to any XFS that has this flag set,
>>>> even if it is not related to further booting. It will create an excessive
>>>> noise. FS drivers shouldn't print anything except dprintf's
>>
>> I see. Good to know, thanks for the information.
>>
>>> Do you think we should just ignore the flag then and drop this patch or it
>>> is
>>> worth to have some debugging printouts with grub_dprintf("xfs", ... ) ?
>>
>> If I understand this correctly, grub can simply ignore the flag, which will
>> make
>> it attempt to read the filesystem anyway.
>>
>> Although, if it fails to read the FS for 'some reason', maybe it can print
>> out
>> a debug message then saying such flag was set in the filesystem? This may
>> give
>> some extra information to the user?!
>
> I think it is good idea. Could you prepare a patch?
>
Yes, I'll post a new version today. Also, it was pointed out to me that even if
GRUB will mostly ignore this feature flag (besides printing a message if fails
to read something), we should at least include XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR
in the XFS_SB_FEAT_INCOMPAT_SUPPORTED list.
Otherwise GRUB will just fail to read anything if grub_xfs_sb_valid() finds that
an unsupported incompatible feature is enabled in the super block.
> Daniel
Best regards,
--
Javier Martinez Canillas
Software Engineer - Desktop Hardware Enablement
Red Hat
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