linux-kernel - Re: linux-next: xfs metadata corruption since 30 March

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Date:   Wed, 01 Apr 2020 11:40:39 +0530
From:   Chandan Rajendra <chandan@...ux.ibm.com>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>
Cc:     Qian Cai <cai@....pw>, Christoph Hellwig <hch@....de>,
        linux-xfs@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: linux-next: xfs metadata corruption since 30 March

On Wednesday, April 1, 2020 10:15 AM Darrick J. Wong wrote: 
> On Wed, Apr 01, 2020 at 12:15:32AM -0400, Qian Cai wrote:
> > 
> > 
> > > On Apr 1, 2020, at 12:14 AM, Chandan Rajendra <chandan@...ux.ibm.com> wrote:
> > > 
> > > On Wednesday, April 1, 2020 3:27 AM Qian Cai wrote: 
> > >> Ever since two days ago, linux-next starts to trigger xfs metadata corruption
> > >> during compilation workloads on both powerpc and arm64,
> > > 
> > > Can you please provide the filesystem geometry information?
> > > You can get that by executing "xfs_info <mount-point>" command.
> > > 
>

I wasn't able to recreate this issue on my P8 kvm guest. Can you provide,
1. The build command line you are using.
2. The number of online CPUs and amount of system memory.
2. As Darrick pointed out, Can you please provide the kconfig used (especially
   the one used for powerpc build).

> Hmm.   Do the arm/ppc systems have 64k pages?  kconfigs might be a good
> starting place.  Also, does the xfs for-next branch exhibit this
> problem, or is it just the big -next branch that Stephen Rothwell puts
> out?
> 
> 
> --D
> 
> > == arm64 ==
> > # xfs_info /home/
> > meta-data=/dev/mapper/rhel_hpe--apollo--cn99xx--11-home isize=512    agcount=4, agsize=113568256 blks
> >          =                       sectsz=4096  attr=2, projid32bit=1
> >          =                       crc=1        finobt=1, sparse=1, rmapbt=0
> >          =                       reflink=1
> > data     =                       bsize=4096   blocks=454273024, imaxpct=5
> >          =                       sunit=0      swidth=0 blks
> > naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
> > log      =internal log           bsize=4096   blocks=221813, version=2
> >          =                       sectsz=4096  sunit=1 blks, lazy-count=1
> > realtime =none                   extsz=4096   blocks=0, rtextents=0
> > 
> > 
> > == powerpc ==
> > # xfs_info /home/
> > meta-data=/dev/mapper/rhel_ibm--p9wr--01-home isize=512    agcount=4, agsize=118489856 blks
> >          =                       sectsz=4096  attr=2, projid32bit=1
> >          =                       crc=1        finobt=1, sparse=1, rmapbt=0
> >          =                       reflink=1
> > data     =                       bsize=4096   blocks=473959424, imaxpct=5
> >          =                       sunit=0      swidth=0 blks
> > naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
> > log      =internal log           bsize=4096   blocks=231425, version=2
> >          =                       sectsz=4096  sunit=1 blks, lazy-count=1
> > realtime =none                   extsz=4096   blocks=0, rtextents=0
> > 
> > == x86 (not yet reproduced)  ==
> > meta-data=/dev/mapper/rhel_hpe--dl380gen9--01-home isize=512    agcount=16, agsize=3283776 blks
> >          =                       sectsz=512   attr=2, projid32bit=1
> >          =                       crc=1        finobt=1, sparse=1, rmapbt=0
> >          =                       reflink=1
> > data     =                       bsize=4096   blocks=52540416, imaxpct=25
> >          =                       sunit=64     swidth=64 blks
> > naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
> > log      =internal log           bsize=4096   blocks=25664, version=2
> >          =                       sectsz=512   sunit=0 blks, lazy-count=1
> > realtime =none                   extsz=4096   blocks=0, rtextents=0
> 


-- 
chandan