GNU bug report logs - #34162
linux-libre 4.20+ fails to mount ext4 on aarch64

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Mark H Weaver <mhw <at> netris.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#34162: closed (linux-libre 4.20+ fails to mount ext4 on aarch64)
Date: Thu, 24 Jan 2019 04:04:01 +0000

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Your message dated Wed, 23 Jan 2019 23:02:31 -0500
with message-id <87imyeln2l.fsf <at> netris.org>
and subject line Re: bug#34162: linux-libre 4.20+ fails to mount ext4 on aarch64
has caused the debbugs.gnu.org bug report #34162,
regarding linux-libre 4.20+ fails to mount ext4 on aarch64
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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34162: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=34162
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From: Vagrant Cascadian <vagrant <at> debian.org>
To: bug-guix <at> gnu.org
Subject: linux-libre 4.20+ fails to mount ext4 on aarch64
Date: Mon, 21 Jan 2019 11:48:47 -0800

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After upgrading to linux-libre 4.20, and again tested with 4.20.3, an
aarch64 system failed to boot (using 4.19.10 worked fine):

[    3.692351] device-mapper: ioctl: 4.39.0-ioctl (2018-04-03) initialised: dm-devel <at> redhat.com
ext2fs_check_if_mount: Can't check if filesystem is mounted due to missing mtab file while determining whether /dev/sda6 is mounted.
/dev/sda6: clean, 596262/6553600 files, 7663147/26214400 blocks
[    3.948786] EXT4-fs (sda6): Cannot load crc32c driver.
ERROR: In procedure mount:
In procedure mount: No such file or directory

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Workaround or fix was to add to config.scm:

(initrd (append (list "crc32c_generic" ... ) %base-initrd-modules))


4.19.10 and earlier worked fine without this addition; as far as I can
see the relevent kernel configurations are all present; but some
behavior changed with the ext4 driver; Is the initrd no longer including
soft module dependencies? (e.g. for optional ext4 features)


This seems similar to Debian bug:

  https://bugs.debian.org/819725


live well,
  vagrant

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From: Mark H Weaver <mhw <at> netris.org>
To: Vagrant Cascadian <vagrant <at> debian.org>
Cc: 34162-done <at> debbugs.gnu.org
Subject: Re: bug#34162: linux-libre 4.20+ fails to mount ext4 on aarch64
Date: Wed, 23 Jan 2019 23:02:31 -0500

Vagrant Cascadian <vagrant <at> debian.org> writes:

> On 2019-01-23, Mark H Weaver wrote:
>> Here's a proposed (untested) patch.  Would you like to test it and see
>> if it eliminates the need for this workaround?
>
> It did, thanks!

Okay, I pushed it to master, commit
ff0b73028c0bbbcbf352989ed3863947357c3bce.

I'm closing this bug report.

    Thanks!
      Mark

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