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[Bug 1345682] [NEW] fsck on 24TB ext4 keeps crashing

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Public bug reported:

date; fsck -vy /dev/mapper/raid61p1 ;date
Thu Jul 17 11:54:21 PDT 2014
fsck from util-linux 2.20.1
I can't get my ext4 24TB to fsck clean. there came a whole bunch of file stat problems after a clean reboot.
I tried 3 times so far, and each does something like segfault. I looked twice, and the errors were different,
but was able to capture one output. The system has 6GB ram, and it used up all the memory. ended up adding 25GB
of swap as fsck seems to use up a huge amount of memory. After a long while, usually after mem use is >90%,
I come back to see the fsck has crashed and file system is still not clean.

The reboot was clean and should not  have caused any corruption. the
system is using ubuntu-14.04

# uname -a
Linux gigabyte133 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
root@gigabyte133:~# 

I had to use the 64 bit version since the 32 bit version I couldn't get more than 15TB file system built and read 
that there were compatibility problems between 32bit version with the -O 64bit and the 64 bit version so just
built the whole thing in 64 bit ubuntu..


e2fsck 1.42.9 (4-Feb-2014)


/dev/mapper/raid61p1 contains a file system with errors, check forced.
Pass 1: Checking inodes, blocks, and sizes
Inode 203167820 has compression flag set on filesystem without compression support.  Clear? yes

Signal (11) SIGSEGV si_code=SI_KERNEL fault addr=(nil)
fsck.ext4[0x4266f1]
/lib/x86_64-linux-gnu/libc.so.6(+0x36ff0)[0x7fd38d087ff0]
/lib/x86_64-linux-gnu/libext2fs.so.2(ext2fs_rb_next+0x23)[0x7fd38dc7bc43]
/lib/x86_64-linux-gnu/libext2fs.so.2(+0x10670)[0x7fd38dc5e670]
fsck.ext4[0x4100f6]# lsb_release -va
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04 LTS
Release:        14.04
Codename:       trusty

/lib/x86_64-linux-gnu/libext2fs.so.2(+0x11c3d)[0x7fd38dc5fc3d]
/lib/x86_64-linux-gnu/libext2fs.so.2(+0x11f78)[0x7fd38dc5ff78]
/lib/x86_64-linux-gnu/libext2fs.so.2(ext2fs_block_iterate3+0xa13)[0x7fd38dc60b13]
fsck.ext4[0x4115c4]
fsck.ext4[0x412699]
fsck.ext4[0x412761]
/lib/x86_64-linux-gnu/libext2fs.so.2(ext2fs_get_next_inode_full+0x59)[0x7fd38dc6c9a9]
fsck.ext4(e2fsck_pass1+0x8d8)[0x4130c8]
fsck.ext4(e2fsck_run+0x52)[0x40deb2]
fsck.ext4(main+0xd27)[0x40a0e7]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7fd38d072ec5]
fsck.ext4[0x40bde6]
Thu Jul 17 15:55:01 PDT 2014

# lsb_release -va
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04 LTS
Release:        14.04
Codename:       trusty

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: util-linux 2.20.1-5.1ubuntu20.1
ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
Uname: Linux 3.13.0-32-generic x86_64
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
ApportVersion: 2.14.1-0ubuntu3.2
Architecture: amd64
Date: Sat Jul 19 18:49:32 2014
InstallationDate: Installed on 2014-07-11 (8 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: util-linux
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: util-linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug third-party-packages trusty

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https://bugs.launchpad.net/bugs/1345682

Title:
  fsck on 24TB ext4 keeps crashing

Status in “util-linux” package in Ubuntu:
  New

Bug description:
  date; fsck -vy /dev/mapper/raid61p1 ;date
  Thu Jul 17 11:54:21 PDT 2014
  fsck from util-linux 2.20.1
  I can't get my ext4 24TB to fsck clean. there came a whole bunch of file stat problems after a clean reboot.
  I tried 3 times so far, and each does something like segfault. I looked twice, and the errors were different,
  but was able to capture one output. The system has 6GB ram, and it used up all the memory. ended up adding 25GB
  of swap as fsck seems to use up a huge amount of memory. After a long while, usually after mem use is >90%,
  I come back to see the fsck has crashed and file system is still not clean.

  The reboot was clean and should not  have caused any corruption. the
  system is using ubuntu-14.04

  # uname -a
  Linux gigabyte133 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
  root@gigabyte133:~# 

  I had to use the 64 bit version since the 32 bit version I couldn't get more than 15TB file system built and read 
  that there were compatibility problems between 32bit version with the -O 64bit and the 64 bit version so just
  built the whole thing in 64 bit ubuntu..

  
  e2fsck 1.42.9 (4-Feb-2014)

  
  /dev/mapper/raid61p1 contains a file system with errors, check forced.
  Pass 1: Checking inodes, blocks, and sizes
  Inode 203167820 has compression flag set on filesystem without compression support.  Clear? yes

  Signal (11) SIGSEGV si_code=SI_KERNEL fault addr=(nil)
  fsck.ext4[0x4266f1]
  /lib/x86_64-linux-gnu/libc.so.6(+0x36ff0)[0x7fd38d087ff0]
  /lib/x86_64-linux-gnu/libext2fs.so.2(ext2fs_rb_next+0x23)[0x7fd38dc7bc43]
  /lib/x86_64-linux-gnu/libext2fs.so.2(+0x10670)[0x7fd38dc5e670]
  fsck.ext4[0x4100f6]# lsb_release -va
  No LSB modules are available.
  Distributor ID: Ubuntu
  Description:    Ubuntu 14.04 LTS
  Release:        14.04
  Codename:       trusty

  /lib/x86_64-linux-gnu/libext2fs.so.2(+0x11c3d)[0x7fd38dc5fc3d]
  /lib/x86_64-linux-gnu/libext2fs.so.2(+0x11f78)[0x7fd38dc5ff78]
  /lib/x86_64-linux-gnu/libext2fs.so.2(ext2fs_block_iterate3+0xa13)[0x7fd38dc60b13]
  fsck.ext4[0x4115c4]
  fsck.ext4[0x412699]
  fsck.ext4[0x412761]
  /lib/x86_64-linux-gnu/libext2fs.so.2(ext2fs_get_next_inode_full+0x59)[0x7fd38dc6c9a9]
  fsck.ext4(e2fsck_pass1+0x8d8)[0x4130c8]
  fsck.ext4(e2fsck_run+0x52)[0x40deb2]
  fsck.ext4(main+0xd27)[0x40a0e7]
  /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7fd38d072ec5]
  fsck.ext4[0x40bde6]
  Thu Jul 17 15:55:01 PDT 2014

  # lsb_release -va
  No LSB modules are available.
  Distributor ID: Ubuntu
  Description:    Ubuntu 14.04 LTS
  Release:        14.04
  Codename:       trusty

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: util-linux 2.20.1-5.1ubuntu20.1
  ProcVersionSignature: Ubuntu 3.13.0-32.57-generic 3.13.11.4
  Uname: Linux 3.13.0-32-generic x86_64
  NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  Date: Sat Jul 19 18:49:32 2014
  InstallationDate: Installed on 2014-07-11 (8 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: util-linux
  UpgradeStatus: No upgrade log present (probably fresh install)

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