Ubuntu
btrfs-tools package

btrfs-image: flush_pending: Assertion `!(!eb)` failed. Aborted. btrfsck also fails.

Bug #1039219 reported by Martin Pool
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
btrfs-tools (Ubuntu)
New
Undecided
Unassigned

Bug Description

I have a machine running Precise with a btrfs root filesystem. It panicked the other day and now neither btrfsck or btrfs-image will run:

# btrfs-image /dev/sdc2 /backup/grace/...
checksum verify failed on 896765952 wanted 1d6bdc08 found 1931370
checksum verify failed on 896765952 wanted 1d6bdc08 found 1931370
checksum verify failed on 896765952 wanted 1d6bdc08 found 1931370
btrfs-image: btrfs-image.c:394: flush_pending: Assertion `!(!eb)` failed.

checksum verify failed on 896765952 wanted 1d6bdc08 found 26093d0
checksum verify failed on 896765952 wanted 1d6bdc08 found 26093d0
checksum verify failed on 896765952 wanted 1d6bdc08 found 26093d0
fsck.btrfs[699]: segfault at b4 ip 000040f486 sp 00007fff8c803990 error 4 in btrfsck[4000000+1f000]
Warning... fsck.btrfs for device /dev/sdc2 exited with signal 11.
mountal: fsck / [697] terminated with status 8

the oops was
lookup_extent_backref
__btrfs_free_extent
run_delayed_tree_ref
...

screenshots https://plus.google.com/photos/112646476239496153808/albums/5778858506731162865?hl=en

Revision history for this message
Dimitri John Ledkov (xnox) wrote :

please try btrfs-tools from quantal. It has improved, maybe it will help.
If not, try btrfs wiki / mailing list, they are usually helpful.

Revision history for this message
Martin Pool (mbp) wrote : Re: [Bug 1039219] Re: btrfs-image: flush_pending: Assertion `!(!eb)` failed. Aborted. btrfsck also fails.

Current Quantal's alternate image doesn't seem to have a btrfs on it. (??)

If I try to mount that partition from Quantal, it fails with:

 BUG: Bad page state in process btrfs-cache-1 pn:2187fb
 page:ffffea000.... count:0 mapcount:0 mapping:ffff88021... index:0x36e9
 page flags: 0x2000...010c(referenced|uptodate|owner_priv_1)

That's kernel 3.5.0-14-generic #15-Ubuntu

Revision history for this message
Martin Pool (mbp) wrote : Fwd: [Bug 1039219] Re: btrfs-image: flush_pending: Assertion `!(!eb)` failed. Aborted. btrfsck also fails.

Current Quantal's alternate image doesn't seem to have a btrfs on it. (??)

If I try to mount that partition from Quantal, it fails with:

> BUG: Bad page state in process btrfs-cache-1 pn:2187fb
> page:ffffea000.... count:0 mapcount:0 mapping:ffff88021... index:0x36e9
> page flags: 0x2000...010c(referenced|uptodate|owner_priv_1)

That's kernel 3.5.0-14-generic #15-Ubuntu

--
Martin

To post a comment you must log in.
This report contains Public information  
Everyone can see this information.
Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.