| Message ID | 20140822015216.GE3875@merlins.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
I just created
https://btrfs.wiki.kernel.org/index.php/Btrfs-zero-log
and added the info about this failure of btrfs-zero-log as well as the
patch from Chris.
Whenever it's in a new version of btrfs-zero-log, I or someone else can
update that wiki page to tell people to just update to a newer version
to get around this "Couldn't setup log root tree" problem.
However, re-reading your error message you got a different error, so the
patch isn't likely to work for you
read block failed check_tree_block
is a warhing
Your actual error is
if (!extent_buffer_uptodate(root->node)) {
fprintf(stderr, "Couldn't read tree root\n");
return -EIO;
}
This looks more serious, and I'm not sure if btrfs-zero-log can help
with that.
I'll let someone else answer.
Marc
On Thu, Aug 21, 2014 at 06:52:16PM -0700, Marc MERLIN wrote:
> On Thu, Aug 21, 2014 at 05:52:01AM +0000, Mihail Zaporozhets wrote:
> > # btrfs-zero-log /dev/sda1
> > warning devid 5 not found already
> > Check tree block failed, want=16845270495232, have=0
> > read block failed check_tree_block
> > Couldn't read tree root
>
> You may be hitting the same problem I was a week back. See the thread
> that says "btrfs-zero-log fails, can't mount FS"
>
> Download the source for btrfs-progs, and apply this patch from Chris:
>
> diff --git a/disk-io.c b/disk-io.c
> index 8db0335..d9a8e19 100644
> --- a/disk-io.c
> +++ b/disk-io.c
> @@ -911,13 +911,13 @@ int btrfs_setup_all_roots(struct btrfs_fs_info *fs_info, u64 root_tree_bytenr,
> return -EIO;
> }
> fs_info->csum_root->track_dirty = 1;
> -
> +#if 0
> ret = find_and_setup_log_root(root, fs_info, sb);
> if (ret) {
> printk("Couldn't setup log root tree\n");
> return -EIO;
> }
> -
> +#endif
> fs_info->generation = generation;
> fs_info->last_trans_committed = generation;
> if (extent_buffer_uptodate(fs_info->extent_root->node) &&
>
>
> Or if you're desparate and want a binary, I'll Email you one directly
> (not that you should run a binary you got from someone via Email as
> root, so it's only if you're desperate)
>
> 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/ | PGP 1024R/763BE901
Marc MERLIN <marc <at> merlins.org> writes: > > On Thu, Aug 21, 2014 at 05:52:01AM +0000, Mihail Zaporozhets wrote: > > # btrfs-zero-log /dev/sda1 > > warning devid 5 not found already > > Check tree block failed, want=16845270495232, have=0 > > read block failed check_tree_block > > Couldn't read tree root > > You may be hitting the same problem I was a week back. See the thread > that says "btrfs-zero-log fails, can't mount FS" > > Download the source for btrfs-progs, and apply this patch from Chris: > > diff --git a/disk-io.c b/disk-io.c > index 8db0335..d9a8e19 100644 > --- a/disk-io.c > +++ b/disk-io.c > <at> <at> -911,13 +911,13 <at> <at> int btrfs_setup_all_roots(struct btrfs_fs_info *fs_info, u64 root_tree_bytenr, > return -EIO; > } > fs_info->csum_root->track_dirty = 1; > - > +#if 0 > ret = find_and_setup_log_root(root, fs_info, sb); > if (ret) { > printk("Couldn't setup log root tree\n"); > return -EIO; > } > - > +#endif > fs_info->generation = generation; > fs_info->last_trans_committed = generation; > if (extent_buffer_uptodate(fs_info->extent_root->node) && > > Or if you're desparate and want a binary, I'll Email you one directly > (not that you should run a binary you got from someone via Email as > root, so it's only if you're desperate) > > Marc Thanks for answers. ok, git clone git://repo.or.cz/btrfs-progs-unstable/devel.git; make; Do I need to patch devel's version, or it contains this changes? if no: sudo ./btrfs-zero-log /dev/sda1 warning devid 5 not found already Check tree block failed, want=16845270495232, have=0 read block failed check_tree_block Couldn't read tree root sudo btrfs-debug-tree -R /dev/sda1 warning devid 5 not found already Check tree block failed, want=16845270495232, have=0 read block failed check_tree_block Couldn't read tree root sudo ./btrfs-show-super /dev/sda1 superblock: bytenr=65536, device=/dev/sda1 --------------------------------------------------------- csum 0x9867082d [match] bytenr 65536 flags 0x1 magic _BHRfS_M [match] fsid 841f1b5c-adb2-485f-a4cf-83bbf880dced label generation 59176 root 16845270495232 sys_array_size 97 chunk_root_generation 59166 root_level 2 chunk_root 11409648779264 chunk_root_level 2 log_root 0 log_root_transid 0 log_root_level 0 total_bytes 10001983041536 bytes_used 9997613580288 sectorsize 4096 nodesize 4096 leafsize 4096 stripesize 4096 root_dir 6 num_devices 5 compat_flags 0x0 compat_ro_flags 0x0 incompat_flags 0x1 csum_type 0 csum_size 4 cache_generation 59176 uuid_tree_generation 59176 dev_item.uuid 1ef01e06-b355-4a17-a2c8-5623188813f9 dev_item.fsid 841f1b5c-adb2-485f-a4cf-83bbf880dced [match] dev_item.type 0 dev_item.total_bytes 2000397885440 dev_item.bytes_used 1999324119040 dev_item.io_align 4096 dev_item.io_width 4096 dev_item.sector_size 4096 dev_item.devid 1 dev_item.dev_group 0 dev_item.seek_speed 0 dev_item.bandwidth 0 dev_item.generation 0 ./btrfs --version Btrfs v3.14.2 last dmesg : [110290.284290] show_signal_msg: 174 callbacks suppressed [110290.284294] btrfs-debug-tre[6014]: segfault at e0 ip 00000000004022b0 sp 00007fffcb77d1d0 error 4 in btrfs-debug-tree[400000+27000] [111278.465863] btrfs-debug-tre[10907]: segfault at e0 ip 00000000004022b0 sp 00007fff856c6bd0 error 4 in btrfs-debug-tree[400000+27000] sudo ./btrfs rescue chunk-recover -v /dev/sda1 All Devices: Device: id = 4, name = /dev/sde1 Device: id = 3, name = /dev/sdd1 Device: id = 2, name = /dev/sdc1 Device: id = 1, name = /dev/sda1 still waiting.... I started this before write to mail list, but, as i remember, my pc after one night stay fully freeze, and had no reaction for anyone keys, and I just reboot it at that time. Nothing changes until this moment... -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/disk-io.c b/disk-io.c index 8db0335..d9a8e19 100644 --- a/disk-io.c +++ b/disk-io.c @@ -911,13 +911,13 @@ int btrfs_setup_all_roots(struct btrfs_fs_info *fs_info, u64 root_tree_bytenr, return -EIO; } fs_info->csum_root->track_dirty = 1; - +#if 0 ret = find_and_setup_log_root(root, fs_info, sb); if (ret) { printk("Couldn't setup log root tree\n"); return -EIO; } - +#endif fs_info->generation = generation; fs_info->last_trans_committed = generation; if (extent_buffer_uptodate(fs_info->extent_root->node) &&