From: Chris Murphy <lists@colorremedies.com>
To: Andrii Zymohliad <azymohliad@protonmail.com>
Cc: Chris Murphy <lists@colorremedies.com>,
"linux-btrfs@vger.kernel.org" <linux-btrfs@vger.kernel.org>,
Andrei Borzenkov <arvidjaar@gmail.com>
Subject: Re: [Help] Can't login to my systemd-homed user account due to fallocate failure
Date: Tue, 25 Aug 2020 16:34:15 -0600 [thread overview]
Message-ID: <CAJCQCtQDt=x7WCX7KhWz_pPn4yB1YdZm9jN29jRuQDFy=ZTOjA@mail.gmail.com> (raw)
In-Reply-To: <6LDov933WqF3kLH8jtkEh-pfK6pRe0o6-Y9l3NcO2mVhswDL7rhbHyda71OnztoJKfgqqQT9jj1Ba52lz_ugNFmmRtzN33BlSa5pCvds0F8=@protonmail.com>
On Tue, Aug 25, 2020 at 2:47 PM Andrii Zymohliad
<azymohliad@protonmail.com> wrote:
>
> > Yeah but is / the top-level?
> >
> > btrfs sub list -t /
>
> ID gen top level path
> -- --- --------- ----
> 258 94017 5 var/lib/portables
> 259 94017 5 var/lib/machines
>
> > mount | grep btrfs
>
> /dev/nvme0n1p2 on / type btrfs (rw,relatime,ssd,space_cache,subvolid=5,subvol=/)
> /dev/mapper/home-azymohliad on /home/azymohliad type btrfs (rw,nosuid,nodev,relatime,ssd,discard,noacl,space_cache,subvolid=5,subvol=/)
>
It might be that for each extent there's a mix of shared and unshared
extents so maybe you just got unlucky and hit a block that isn't
shared in that extent.
Try more of those shared addresses. If you can do python at all,
there's python-btrfs
https://github.com/knorrie/python-btrfs
He gave this example, which I don't follow because I don't do python
at all, but the vaddr is the filefrag -v address from before * 4096.
You could just iterate by incrementing by 4096 and stop as soon as you
get two files (or two inodes). And then us find -inum to track down
the inode numbers to files.
https://github.com/knorrie/python-btrfs
--
Chris Murphy
next prev parent reply other threads:[~2020-08-25 22:35 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-23 15:31 [Help] Can't login to my systemd-homed user account due to fallocate failure Andrii Zymohliad
2020-08-23 15:37 ` Hugo Mills
2020-08-23 16:21 ` Andrei Borzenkov
2020-08-23 16:55 ` Andrii Zymohliad
2020-08-23 18:16 ` Andrei Borzenkov
2020-08-23 18:49 ` Andrii Zymohliad
2020-08-24 3:01 ` Chris Murphy
2020-08-24 2:23 ` Chris Murphy
2020-08-24 2:50 ` Chris Murphy
2020-08-24 6:11 ` Andrii Zymohliad
2020-08-24 7:13 ` Chris Murphy
2020-08-24 7:25 ` Andrii Zymohliad
2020-08-24 8:28 ` Andrii Zymohliad
2020-08-24 8:32 ` Andrii Zymohliad
2020-08-24 18:51 ` Chris Murphy
2020-08-25 7:22 ` Andrii Zymohliad
2020-08-25 19:05 ` Chris Murphy
2020-08-25 20:47 ` Andrii Zymohliad
2020-08-25 22:34 ` Chris Murphy [this message]
2020-08-26 13:37 ` Andrii Zymohliad
2020-08-26 13:40 ` Andrii Zymohliad
2020-08-26 19:06 ` Chris Murphy
[not found] ` <dHPyoaNUuxoqxJjpSUjcxZvk21ew2ObKWFFhX0efJKBqjG8m27px3mPupviQuM3HYQDEcYQGFQ9jOprBuAX4x1Em3oVOyDl6EhKwEJSiuXs=@protonmail.com>
2020-08-26 19:15 ` Chris Murphy
2020-08-26 19:57 ` Andrii Zymohliad
2020-08-26 21:06 ` Chris Murphy
2020-08-26 21:08 ` Chris Murphy
2020-08-26 21:14 ` Chris Murphy
2020-08-27 6:48 ` Andrii Zymohliad
2020-09-01 15:01 ` Chris Murphy
2020-09-01 17:06 ` Andrii Zymohliad
2020-09-01 17:22 ` Chris Murphy
2020-09-01 17:27 ` Andrii Zymohliad
2020-09-01 17:31 ` Andrii Zymohliad
2020-09-01 20:45 ` Chris Murphy
2020-09-02 16:35 ` Chris Murphy
2020-08-27 5:39 ` Andrei Borzenkov
2020-08-24 15:23 ` Andrei Borzenkov
2020-08-24 17:42 ` Goffredo Baroncelli
[not found] <bdJVxLiFr=5FPyQSXRUbZJfFW=5FjAjsGgoMetqPHJMbg-hdy54Xt=5FZHhRetmnJ6cJ99eBlcX76wy-AvWwV715c3YndkxneSlod11P1hlaADx0s=3D@protonmail.com>
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[not found] ` <lyGE8gPEf9cUEMJceWoJWD=5Fibk4viZXU0yG5VzbNe9yueGbkcnl1FkJrFZZufhWd5y2vNOgAwfYSpJ4Gia5Tow4wdmQXiGuETdyuNmnemJY=3D@protonmail.com>
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