From: Marc MERLIN <marc@merlins.org>
To: linux-btrfs@vger.kernel.org
Subject: Re: kernel BUG at fs/btrfs/extent_io.c:1884!
Date: Thu, 20 Sep 2012 20:46:52 -0700 [thread overview]
Message-ID: <20120921034652.GA871@merlins.org> (raw)
In-Reply-To: <20120920171747.GG26105@merlins.org>
On Thu, Sep 20, 2012 at 10:17:47AM -0700, Marc MERLIN wrote:
> I had a btrfs built on top of 5 drives (dmcrypt devices).
>
> The drive then died while I was writing to the filesystem and my system
> crashed and rebooted:
>
> [384555.534020] sd 10:0:0:0: rejecting I/O to offline device
> [384555.535057] sd 10:0:0:0: rejecting I/O to offline device
> [384556.666885] ------------[ cut here ]------------
> [384556.667909] sd 10:0:0:0: [sdj] Synchronizing SCSI cache
> [384556.677509] kernel BUG at fs/btrfs/ctree.c:3451!
> [384556.682551] invalid opcode: 0000 [#1] PREEMPT SMP
> [384556.687878] CPU 2
>
Oh my, now I'm trying again with a new drive, and a big cp from an
existing array to a new one dies with:
[32042.079411] ------------[ cut here ]------------
[32042.085799] kernel BUG at fs/btrfs/extent_io.c:1884!
[32042.092528] invalid opcode: 0000 [#1] PREEMPT SMP
[32042.099227] CPU 1
[32042.101095] Modules linked in:[32042.105950] raid456 async_raid6_recov async
_pq raid6_pq async_xor xor async_memcpy async_tx ppdev lp tun autofs4 kl5kusb105
ftdi_sio keyspan nfsd nfs lockd fscache auth_rpcgss nfs_acl sunrpc rc_ati_x10 s
nd_timer i915 usbserial snd drm_kms_helper eeepc_wmi drm ati_remote asus_wmi rc_
core sparse_keymap
int repair_io_failure(struct btrfs_mapping_tree *map_tree, u64 start,
u64 length, u64 logical, struct page *page,
int mirror_num)
{
struct bio *bio;
struct btrfs_device *dev;
DECLARE_COMPLETION_ONSTACK(compl);
u64 map_length = 0;
u64 sector;
struct btrfs_bio *bbio = NULL;
int ret;
BUG_ON(!mirror_num); <<<<<
This is more of a problem since I can't backup my filesystem (source is
ext4 and destination is btrfs).
Any suggestion on what went wrong here?
Thanks,
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/
next prev parent reply other threads:[~2012-09-21 3:46 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-20 17:17 3.5.3: kernel BUG at fs/btrfs/ctree.c:3451! Marc MERLIN
2012-09-21 3:46 ` Marc MERLIN [this message]
2012-09-21 3:51 ` kernel BUG at fs/btrfs/extent_io.c:1884! cwillu
2012-09-21 4:11 ` Marc MERLIN
2012-09-21 3:53 ` Liu Bo
2012-09-21 4:57 ` Stefan Behrens
2012-09-21 5:43 ` Marc MERLIN
2012-09-23 16:16 ` crash in read_extent_buffer+0xb7/0xfb Marc MERLIN
2012-09-24 13:08 ` David Sterba
2012-09-24 14:41 ` Marc MERLIN
2012-09-24 15:37 ` David Sterba
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