Hello,
I'm using kernel 3.1.0 and I have both / and /home as btrfs. I used
suspend to ram quite often and never had a problem, but yesterday I've
suspended to get into a plane and when I resumed my /home was all
about input/output errors. Reboot did not help either. My root (/)
did not suffer any problems.
Today I've upgraded btrfs-progs to latest GIT and tried scrub without success:
# btrfs scrub start -B -d /home/
scrub device /dev/sda6 (id 1) done
scrub started at Sun Dec 31 23:13:19 2000 and finished after 273 seconds
total bytes scrubbed: 548.90MB with 1 errors
error details: verify=1
corrected errors: 0, uncorrectable errors: 1, unverified errors: 0
# dmesg after "cat /home/gustavo/file":
btrfs no csum found for inode 2957021 start 0
btrfs no csum found for inode 2957021 start 0
btrfs csum failed ino 2957021 extent 85041815552 csum 667310679
wanted 0 mirror 0
btrfs no csum found for inode 2957021 start 0
btrfs no csum found for inode 2957021 start 0
btrfs csum failed ino 2957021 extent 85041815552 csum 667310679
wanted 0 mirror 1
# dmesg during scrub:
btrfs: unable to fixup at 402384056320
# grep btrfs /etc/fstab
/dev/sda4 / btrfs noatime,noacl,compress,nodatacow,nobarrier,ssd 0 0
/dev/sda6 /home btrfs
noatime,noacl,compress,ssd,comment=systemd.automount 0 0
I can still list directories and all, but no file contents can be
read. Not even those that I'm sure were not changed recently, like
~/.emacs or some read-only files.
Before the suspend I was writing some code under
/home/gustavo/Development, but just 2 files were written recently. Of
course something like ~/.xsession-errors or some browser cache may
have changed recently. But nothing big like a compile.
It is an Apple MacBook Pro with their SSD. badblocks (read-only) shows
no errors.
Is there any way to recover it? :-S
--
Gustavo Sverzut Barbieri
--------------------------------------
Mobile: +55 (19) 9225-2202
Contact: http://www.gustavobarbieri.com.br/contact
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