Hi,

2013-10-22 (화), 22:50 +0200, Max Muster:
> Hi,
> 
> I don't recall anything like a blackout, but since I like to run new
> software that's still in development, I have had a fair share of system
> crashes.
> 
> As far as I'm aware this is the only file on the partition to ever
> become corrupted at the file system level, though.
> 
> The repository was a simple (shallow) git clone of Google's gyp,
> available here:
> 
> https://chromium.googlesource.com/external/gyp.git
> 

As I tested the above git, there was no functional problem on f2fs.
So, could you give me the log of "fsck.f2fs -d 3"?
It is the best you can give me the broken image though.
Thanks,

> Such being the case, I have no need to restore the file, but being able
> to have it properly deleted would be nice.
> 
> Yours
> tastky
> 
> On 22.10.2013 13:09, Jaegeuk Kim wrote:
> > Hi,
> >
> > Thank you for the report.
> >
> > 2013-10-19 (토), 19:36 +0200, Max Muster:
> >> There's a broken, ie. inaccessible and unerasable file on my f2fs
> >> partition (2nd partition with 21GB on a Corsair Flash Voyager GT USB 3.0
> >> 32GB). ls reports:
> >>
> >>   >cannot access shared.h: Input/output error
> >>   >total 0
> >>   >-????????? ? ? ? ?            ? shared.h
> >>
> >> The file has been on the partition for a couple of months already. I
> >> didn't report sooner as I could/can move its folder (but not the file
> >> itself) where it doesn't bug me and it doesn't appear to affect anything
> >> else.
> >>
> >> (I'm currently running Linux v3.12-rc5 with post-3.12 f2fs patches
> >> applied manually.)
> >>
> >> The partition is used primarily to store source code and as cache for
> >> ccache. I don't recall ever fiddling with this file directly; it
> >> probably happened during updating its repository or deleting just that.
> >>
> >> f2fs-tools's fsck (current git 2ad1fcd800) doesn't appear to do anything
> >> and aborts after some 30 seconds with:
> >>
> >>   >Info: sector size = 512
> >>   >Info: total sectors = 42106880 (in 512bytes)
> >>   >[fsck_chk_node_blk: 195] block addr [0xa40ae59]
> >>   >
> >>   >Assertion failed!
> >>   >[fsck_chk_node_blk: 195] ni.blk_addr < F2FS_RAW_SUPER(sbi)->block_count
> >>
> >> If you would like me to post further info, please tell me which; I've
> >> got no idea how to further debug this.
> >
> > Um, I've never seen this kind of error so far.
> >  From the result of fsck, it seems that the inode of shared.h was lost.
> > So, currently, there is no way to recover that inode and its data
> > simply.
> > It may need scan the whole partition to find the stale inode block.
> >
> > Two questions.
> > - Have you experienced any sudden power-off before?
> > - Can I test with the repository having the shared.h that you used?
> >    (I'd like to do a simple test storing that repository.)
> >
> > Thanks,
> >

-- 
Jaegeuk Kim
Samsung



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