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Re: XFS segfaulting on xfs_repair

To: Marc Boivin <marc.boivin@xxxxxxxxx>
Subject: Re: XFS segfaulting on xfs_repair
From: Ben Myers <bpm@xxxxxxx>
Date: Fri, 20 Dec 2013 09:44:30 -0600
Cc: xfs@xxxxxxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <5C03211A-BF4B-485A-97F1-9CE00DACF09D@xxxxxxxxx>
References: <5C03211A-BF4B-485A-97F1-9CE00DACF09D@xxxxxxxxx>
User-agent: Mutt/1.5.20 (2009-06-14)
Hi Marc,

On Fri, Dec 20, 2013 at 09:26:26AM -0500, Marc Boivin wrote:
>     Weâve been having a hard time with our ifs partition but managed to get
>     it almost back to working conditions. To give you a bit of context we
>     have a LVM sitting on top of 3 RAID 5. The partition is encrypted. We had
>     issues with RAID degradation but now the RAIDs are healthy. 
> 
> We ran xfs_repair quite a few times (5 if Iâm not mistaken). We are stuck
> with an error: 
> 
> *** glibc detected *** xfs_repair: malloc(): smallbin double linked list 
> corrupted: 0x00007f5dc7642570 ***
> ======= Backtrace: =========
> /lib/x86_64-linux-gnu/libc.so.6(+0x76d76)[0x7f6149f96d76]
> /lib/x86_64-linux-gnu/libc.so.6(+0x7a658)[0x7f6149f9a658]
> /lib/x86_64-linux-gnu/libc.so.6(__libc_malloc+0x70)[0x7f6149f9bb90]
> xfs_repair[0x42da83]
> xfs_repair[0x42db16]
> xfs_repair[0x42dd62]
> xfs_repair[0x430b74]
> xfs_repair[0x4492de]
> xfs_repair[0x44e634]
> xfs_repair[0x451976]
> xfs_repair[0x44c4ba]
> xfs_repair[0x41f126]
> xfs_repair[0x421e55]
> xfs_repair[0x4039d8]
> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd)[0x7f6149f3eead]
> xfs_repair[0x403ff9]

I think if you install the xfsprogs debuginfo package this backtrace will
include function names.  Do you have a core file?  What version of xfs_repair?

Thanks,
        Ben

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