[Bug 793410] Re: btrfsck assert failure: btrfsck: disk-io.c:416: find_and_setup_root: Assertion `!(!root->node)' failed.

Tue May 15 19:26:28 UTC 2012

More info:
Doing btrfsck in /boot gives this:
couldn't open because of unsupported option features (8).
btrfsck: disk-io.c:679: open_ctree_fd: Assertion `!(1)' failed.
Doing the same in / at first didnt found a block <number> and crashed.
Recurrent checks produce bad block checks such as (indicative output below):
Extent back ref already exists for 190476288 parent 0 root 2 
Extent back ref already exists for 45932544 parent 0 root 2 
Extent back ref already exists for 67600384 parent 0 root 2 
Extent back ref already exists for 45928448 parent 0 root 2 
Extent back ref already exists for 48345088 parent 0 root 2 
Extent back ref already exists for 45899776 parent 0 root 2 
Extent back ref already exists for 45879296 parent 0 root 2 
Extent back ref already exists for 45862912 parent 0 root 2 
Extent back ref already exists for 49606656 parent 0 root 2 
Extent back ref already exists for 183283712 parent 0 root 2 
Extent back ref already exists for 50061312 parent 0 root 2 
Extent back ref already exists for 38305792 parent 0 root 2 
Extent back ref already exists for 81879040 parent 0 root 2 
Extent back ref already exists for 47153152 parent 0 root 2 
Extent back ref already exists for 45846528 parent 0 root 2 
Extent back ref already exists for 83390464 parent 0 root 2 
Extent back ref already exists for 38326272 parent 0 root 2 
Extent back ref already exists for 71688192 parent 0 root 2 
parent transid verify failed on 38899712 wanted 29962 found 28637
parent transid verify failed on 38899712 wanted 29962 found 28637
parent transid verify failed on 47984640 wanted 29957 found 29884
parent transid verify failed on 47984640 wanted 29957 found 29884
parent transid verify failed on 40017920 wanted 29962 found 29944
parent transid verify failed on 40017920 wanted 29962 found 29944
bad block 47243264
parent transid verify failed on 37011456 wanted 29958 found 29944
parent transid verify failed on 37011456 wanted 29958 found 29944
leaf parent key incorrect 47464448
bad block 47464448
bad block 47685632
Extent back ref already exists for 49393664 parent 0 root 2 
Extent back ref already exists for 265678848 parent 0 root 2 
Extent back ref already exists for 49397760 parent 0 root 2 
Extent back ref already exists for 265953280 parent 0 root 2 
Extent back ref already exists for 73359360 parent 0 root 2 
Extent back ref already exists for 67162112 parent 0 root 2 
Extent back ref already exists for 36175872 parent 0 root 2 
Extent back ref already exists for 36179968 parent 0 root 2 
Extent back ref already exists for 49405952 parent 0 root 2 
Extent back ref already exists for 73396224 parent 0 root 2 
Extent back ref already exists for 47730688 parent 0 root 2 
Extent back ref already exists for 267403264 parent 0 root 2 
Extent back ref already exists for 47738880 parent 0 root 2 
Extent back ref already exists for 78487552 parent 0 root 2 
Extent back ref already exists for 35606528 parent 0 root 2 
Extent back ref already exists for 78495744 parent 0 root 2 
Extent back ref already exists for 52768768 parent 0 root 2 
Extent back ref already exists for 47734784 parent 0 root 2 
Extent back ref already exists for 50556928 parent 0 root 2 
Extent back ref already exists for 51130368 parent 0 root 2 
Extent back ref already exists for 50421760 parent 0 root 2 
Extent back ref already exists for 72568832 parent 0 root 2 
Extent back ref already exists for 50511872 parent 0 root 2 
Extent back ref already exists for 78512128 parent 0 root 2 
Extent back ref already exists for 50634752 parent 0 root 2 
Extent back ref already exists for 71929856 parent 0 root 2 
Extent back ref already exists for 50651136 parent 0 root 2 
Extent back ref already exists for 202817536 parent 0 root 2 
Extent back ref already exists for 202821632 parent 0 root 2 
Extent back ref already exists for 270774272 parent 0 root 2 
Extent back ref already exists for 270458880 parent 0 root 2 
Extent back ref already exists for 78516224 parent 0 root 2 
Extent back ref already exists for 47759360 parent 0 root 2 
Extent back ref already exists for 78548992 parent 0 root 2 
Extent back ref already exists for 65343488 parent 0 root 2 
Extent back ref already exists for 59994112 parent 0 root 2 
Extent back ref already exists for 199249920 parent 0 root 2 
Extent back ref already exists for 54861824 parent 0 root 2 
Extent back ref already exists for 72450048 parent 0 root 2 
Extent back ref already exists for 52592640 parent 0 root 2 
Extent back ref already exists for 53932032 parent 0 root 2 
Extent back ref already exists for 35598336 parent 0 root 2 
Extent back ref already exists for 253657088 parent 0 root 2 
Extent back ref already exists for 253513728 parent 0 root 2 
Extent back ref already exists for 253501440 parent 0 root 2 
Extent back ref already exists for 275013632 parent 0 root 2 
Extent back ref already exists for 275451904 parent 0 root 2 
bad block 47923200
parent transid verify failed on 60014592 wanted 29946 found 29944
parent transid verify failed on 60014592 wanted 29946 found 29944
leaf parent key incorrect 48812032
bad block 48812032
parent transid verify failed on 39108608 wanted 29966 found 29944
parent transid verify failed on 39108608 wanted 29966 found 29944
leaf parent key incorrect 49844224
bad block 49844224
parent transid verify failed on 44236800 wanted 29946 found 29884
parent transid verify failed on 44236800 wanted 29946 found 29884
parent transid verify failed on 37163008 wanted 29952 found 28907
parent transid verify failed on 37163008 wanted 29952 found 28907
parent transid verify failed on 37163008 wanted 29952 found 29944

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https://bugs.launchpad.net/bugs/793410

Title:
  btrfsck assert failure: btrfsck: disk-io.c:416: find_and_setup_root:
  Assertion `!(!root->node)' failed.

Status in “btrfs-tools” package in Ubuntu:
  Confirmed

Bug description:
  Binary package hint: btrfs-tools

  not sure if it's a hdd problem or not, but the FS is a goner :-(

  ProblemType: Crash
  DistroRelease: Ubuntu 11.04
  Package: btrfs-tools 0.19+20100601-3ubuntu2
  ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
  Uname: Linux 2.6.38-8-generic x86_64
  Architecture: amd64
  AssertionMessage: btrfsck: disk-io.c:416: find_and_setup_root: Assertion `!(!root->node)' failed.
  Date: Mon Jun  6 08:40:05 2011
  ExecutablePath: /sbin/btrfsck
  LiveMediaBuild: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
  ProcCmdline: btrfsck /dev/sda3
  ProcEnviron:
   SHELL=/bin/bash
   PATH=(custom, no user)
   LANG=en_US.UTF-8
   LANGUAGE=en_US:en
  Signal: 6
  SourcePackage: btrfs-tools
  StacktraceTop:
   raise () from /lib/x86_64-linux-gnu/libc.so.6
   abort () from /lib/x86_64-linux-gnu/libc.so.6
   __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
   ?? ()
   ?? ()
  Title: btrfsck assert failure: btrfsck: disk-io.c:416: find_and_setup_root: Assertion `!(!root->node)' failed.
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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