[PATCH] xfs_repair: junk last entry in sf dir if name starts beyond dir size

[Rui Gomes]

Hello Eric, 

After applying that patch I get yet another Segmentation Fault in a different place, gdb bt and output in the attachment.


Just in case this help, bellow the inode right before the segmentation fault:

xfs_db -c "inode 620507648" -c "p" /dev/sdb1 
Metadata corruption detected at block 0x4ffed6d08/0x1000
xfs_db: cannot init perag data (117). Continuing anyway.
core.magic = 0x494e
core.mode = 040755
core.version = 2
core.format = 2 (extents)
core.nlinkv2 = 3
core.onlink = 0
core.projid_lo = 0
core.projid_hi = 0
core.uid = 0
core.gid = 0
core.flushiter = 2
core.atime.sec = Fri May 16 12:21:52 2014
core.atime.nsec = 779442171
core.mtime.sec = Tue Mar 24 12:03:59 2009
core.mtime.nsec = 000000000
core.ctime.sec = Fri Feb 28 19:54:03 2014
core.ctime.nsec = 736630717
core.size = 4096
core.nblocks = 1
core.extsize = 0
core.nextents = 1
core.naextents = 0
core.forkoff = 0
core.aformat = 2 (extents)
core.dmevmask = 0
core.dmstate = 0
core.newrtbm = 0
core.prealloc = 0
core.realtime = 0
core.immutable = 0
core.append = 0
core.sync = 0
core.noatime = 0
core.nodump = 0
core.rtinherit = 0
core.projinherit = 0
core.nosymlinks = 0
core.extsz = 0
core.extszinherit = 0
core.nodefrag = 0
core.filestream = 0
core.gen = 3064228498
next_unlinked = null
u.bmx[0] = [startoff,startblock,blockcount,extentflag] 0:[0,38781727,1,0]




Regards 

------------------------------- 
Rui Gomes 
CTO 


RVX - Reykjavik Visual Effects 
Seljavegur 2, 
101 Reykjavik 
Iceland 


Tel: + 354 527 3330 
Mob: + 354 663 3360

----- Original Message -----
From: "Eric Sandeen" <sandeen at sandeen.net>
To: "Rui Gomes" <rgomes at rvx.is>
Cc: "omar" <omar at rvx.is>, "xfs" <xfs at oss.sgi.com>
Sent: Wednesday, 11 March, 2015 14:44:41
Subject: Re: [PATCH] xfs_repair: junk last entry in sf dir if name starts beyond dir size

On 3/11/15 10:26 AM, Rui Gomes wrote:
> Hello Eric,
> 
> Thank you for the quick reply yesterday, I got to try the new patched version today,
> and we have now a segmentation fault at a different stage of the repair  \o/ 
> Full output plus gdb traceback in the attachment.

If you have 4k sectors, you might need this patch from the list:

[PATCH] xfs: superblock buffers need to be sector sized

http://marc.info/?l=linux-xfs&m=142476196802097&w=2

as it's not merged yet.

-Eric
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: xfs_gdb_2.txt
URL: <http://oss.sgi.com/pipermail/xfs/attachments/20150311/2980c193/attachment-0001.txt>