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From: Erik Jensen <erikjensen@rkjnsn.net>
To: Qu Wenruo <quwenruo.btrfs@gmx.com>
Cc: Hugo Mills <hugo@carfax.org.uk>,
	linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: "bad tree block start" when trying to mount on ARM
Date: Tue, 19 Jan 2021 01:28:12 -0800	[thread overview]
Message-ID: <CAMj6ewNjSs-_3akOquO1Zry5RBNEPqQWf7ZKjs8JOzTA7ZGZ7w@mail.gmail.com> (raw)
In-Reply-To: <CAMj6ewPiEvXbtHC1auSfRag5QGtYJxwH_Hvoi2t_18uDSxzm8w@mail.gmail.com>

On Mon, Jan 18, 2021 at 9:22 PM Erik Jensen <erikjensen@rkjnsn.net> wrote:
>
> On Mon, Jan 18, 2021 at 4:12 AM Erik Jensen <erikjensen@rkjnsn.net> wrote:
> >
> > The offending system is indeed ARMv7 (specifically a Marvell ARMADA®
> > 388), but I believe the Broadcom BCM2835 in my Raspberry Pi is
> > actually ARMv6 (with hardware float support).
>
> Using NBD, I have verified that I receive the same error when
> attempting to mount the filesystem on my ARMv6 Raspberry Pi:
> [ 3491.339572] BTRFS info (device dm-4): disk space caching is enabled
> [ 3491.394584] BTRFS info (device dm-4): has skinny extents
> [ 3492.385095] BTRFS error (device dm-4): bad tree block start, want
> 26207780683776 have 3395945502747707095
> [ 3492.514071] BTRFS error (device dm-4): bad tree block start, want
> 26207780683776 have 3395945502747707095
> [ 3492.553599] BTRFS warning (device dm-4): failed to read tree root
> [ 3492.865368] BTRFS error (device dm-4): open_ctree failed
>
> The Raspberry Pi is running Linux 5.4.83.
>

Okay, after some more testing, ARM seems to be irrelevant, and 32-bit
is the key factor. On a whim, I booted up an i686, 5.8.14 kernel in a
VM, attached the drives via NBD, ran cryptsetup, tried to mount, and…
I got the exact same error message.

  reply	other threads:[~2021-01-19 14:38 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-21  8:34 "bad tree block start" when trying to mount on ARM Erik Jensen
2019-05-21  8:56 ` Patrik Lundquist
2019-05-21  9:01   ` Erik Jensen
2019-05-21  9:18 ` Hugo Mills
2019-05-22 16:02   ` Erik Jensen
2019-06-26  7:04     ` Erik Jensen
2019-06-26  8:10       ` Qu Wenruo
     [not found]         ` <CAMj6ewO229vq6=s+T7GhUegwDADv4dzhqPiM0jo10QiKujvytA@mail.gmail.com>
2019-06-28  8:15           ` Qu Wenruo
2021-01-18 10:50             ` Erik Jensen
     [not found]             ` <CAMj6ewMqXLtrBQgTJuz04v3MBZ0W95fU4pT0jP6kFhuP830TuA@mail.gmail.com>
2021-01-18 11:07               ` Qu Wenruo
2021-01-18 11:55                 ` Erik Jensen
2021-01-18 12:01                   ` Qu Wenruo
2021-01-18 12:12                     ` Erik Jensen
2021-01-19  5:22                       ` Erik Jensen
2021-01-19  9:28                         ` Erik Jensen [this message]
2021-01-20  8:21                           ` Qu Wenruo
2021-01-20  8:30                             ` Qu Wenruo
     [not found]                               ` <CAMj6ewOqCJTGjykDijun9_LWYELA=92HrE+KjGo-ehJTutR_+w@mail.gmail.com>
2021-01-26  4:54                                 ` Erik Jensen
2021-01-29  6:39                                   ` Erik Jensen
2021-02-01  2:35                                     ` Qu Wenruo
2021-02-01  5:49                                       ` Su Yue
2021-02-04  6:16                                         ` Erik Jensen
2021-02-06  1:57                                           ` Erik Jensen
2021-02-10  5:47                                             ` Qu Wenruo
2021-02-10 22:17                                               ` Erik Jensen
2021-02-10 23:47                                                 ` Qu Wenruo
2021-02-18  1:24                                                   ` Qu Wenruo
2021-02-18  4:03                                                     ` Erik Jensen
2021-02-18  5:24                                                       ` Qu Wenruo
2021-02-18  5:49                                                         ` Erik Jensen
2021-02-18  6:09                                                           ` Qu Wenruo
2021-02-18  6:59                                                             ` Erik Jensen
2021-02-18  7:24                                                               ` Qu Wenruo
2021-02-18  7:59                                                                 ` Erik Jensen
2021-02-18  8:38                                                                   ` Qu Wenruo
2021-02-18  8:52                                                                     ` Erik Jensen
2021-02-18  8:59                                                                       ` Qu Wenruo
2021-02-20  2:47                                                                         ` Erik Jensen
2021-02-20  3:16                                                                           ` Qu Wenruo
2021-02-20  4:28                                                                             ` Erik Jensen
2021-02-20  6:01                                                                               ` Qu Wenruo
2021-02-21  5:36                                                                                 ` Erik Jensen
2021-02-18  7:25                                                               ` Erik Jensen
2019-05-21 10:17 ` Qu Wenruo

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