[Filesystems-devel] Bug#884008: Bug#884008: aufs-dkms: aufs triggers kernel WARN during boot

Jan Luca Naumann j.naumann at fu-berlin.de
Sun Dec 10 20:00:24 UTC 2017


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Dear aufs-maintainer,

the following Debian bug (see also webpage [1]) seems to be a upstream
problem of the aufs-kernel-module. Could you take a look into it?

Best regards,
Jan

[1] http://bugs.debian.org/884008

Am 10.12.2017 um 13:28 schrieb Ralf Jung:
> Package: aufs-dkms Version: 4.9+20161219-1 Severity: normal
> 
> Dear Maintainer,
> 
> we have aufs installed on our server to be able to run docker. 
> During boot, I see the following arror a couple dozen times:
> 
> S Sun Dec 10 12:10:27 2017 p4 kernel: aufs 
> au_opts_verify:1607:dockerd[1339]: dirperm1 breaks the protection 
> by the permission bits on the lower branch S Sun Dec 10 12:10:27 
> 2017 p4 kernel: ------------[ cut here ]------------ S Sun Dec 10 
> 12:10:27 2017 p4 kernel: WARNING: CPU: 0 PID: 1490 at 
> /var/lib/dkms/aufs/4.9+20161219/build/fs/aufs/cpup.c:423 
> au_cp_regular+0x16c/0x250 [aufs] S Sun Dec 10 12:10:27 2017 p4 
> kernel: .wh..wh.setup_maker_elements-i.ri.0007 Please report this 
> warning to aufs-users ML S Sun Dec 10 12:10:27 2017 p4 kernel: 
> Modules linked in: S Sun Dec 10 12:10:27 2017 p4 kernel:  aufs(O) 
> xenfs xen_privcmd joydev hid_generic usbhid hid ppdev sg pcspkr 
> parport_pc parport serio_raw evdev ip_tables x_tables autofs4 ext4 
> crc16 jbd2 crc32c_generic fscrypto ecb glue_helper lrw gf128mul 
> ablk_helper cryptd aes_x86_64 mbcache sr_mod cdrom ata_generic 
> xen_netfront xen_blkfront crc32c_intel ata_piix psmouse cirrus ttm 
> drm_kms_helper drm i2c_piix4 uhci_hcd ehci_hcd usbcore usb_common 
> libata scsi_mod floppy button S Sun Dec 10 12:10:27 2017 p4
> kernel: CPU: 0 PID: 1490 Comm: auplink Tainted: G           O 
> 4.9.0-4-amd64 #1 Debian 4.9.65-3 S Sun Dec 10 12:10:27 2017 p4 
> kernel: Hardware name: Xen HVM domU, BIOS 4.4.1-xs116341 01/13/2016
> S Sun Dec 10 12:10:27 2017 p4 kernel:  0000000000000000 
> ffffffffa8928e84 ffffbba581ee7a60 0000000000000000 S Sun Dec 10 
> 12:10:27 2017 p4 kernel:  ffffffffa8675efe ffffbba581ee7d58 
> ffffbba581ee7ab8 0000000000000000 S Sun Dec 10 12:10:27 2017 p4 
> kernel:  ffff9512c3ab3800 ffff9512c50e2d00 ffff95128a6ec780 
> ffffffffa8675f7f S Sun Dec 10 12:10:27 2017 p4 kernel: Call Trace:
>  S Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffa8928e84>] ? 
> dump_stack+0x5c/0x78 S Sun Dec 10 12:10:27 2017 p4 kernel: 
> [<ffffffffa8675efe>] ? __warn+0xbe/0xe0 S Sun Dec 10 12:10:27 2017 
> p4 kernel:  [<ffffffffa8675f7f>] ? warn_slowpath_fmt+0x5f/0x80 S 
> Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffc064aaec>] ? 
> au_cp_regular+0x16c/0x250 [aufs] S Sun Dec 10 12:10:27 2017 p4 
> kernel:  [<ffffffffc064abc1>] ? au_cp_regular+0x241/0x250 [aufs] S 
> Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffc064ab37>] ? 
> au_cp_regular+0x1b7/0x250 [aufs] S Sun Dec 10 12:10:27 2017 p4 
> kernel:  [<ffffffffc064b30c>] ? cpup_entry+0x73c/0x890 [aufs] S
> Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffc0648674>] ? 
> vfsub_lookup_one_len+0x44/0xf0 [aufs] S Sun Dec 10 12:10:27 2017
> p4 kernel:  [<ffffffffa8935546>] ? sprintf+0x56/0x70 S Sun Dec 10 
> 12:10:27 2017 p4 kernel:  [<ffffffffc064b5e7>] ? 
> au_cpup_single.constprop.23+0x187/0x760 [aufs] S Sun Dec 10 
> 12:10:27 2017 p4 kernel:  [<ffffffffa881a658>] ? dput+0x38/0x250 S 
> Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffc064bfeb>] ? 
> au_cpup_simple+0x5b/0xa0 [aufs] S Sun Dec 10 12:10:27 2017 p4 
> kernel:  [<ffffffffc064c0ff>] ? au_do_sio_cpup_simple+0xcf/0xf0 
> [aufs] S Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffc06609d3>] 
> ? au_pin_and_icpup+0x2a3/0x4e0 [aufs] S Sun Dec 10 12:10:27 2017
> p4 kernel:  [<ffffffffc06610f4>] ? aufs_setattr+0x4e4/0x620 [aufs]
> S Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffa88285b2>] ? 
> xattr_resolve_name+0xa2/0xc0 S Sun Dec 10 12:10:27 2017 p4 kernel: 
> [<ffffffffa882063f>] ? notify_change+0x2ef/0x460 S Sun Dec 10 
> 12:10:27 2017 p4 kernel:  [<ffffffffa87ff0f5>] ? 
> chown_common+0x165/0x1c0 S Sun Dec 10 12:10:27 2017 p4 kernel: 
> [<ffffffffa8957138>] ? strncpy_from_user+0x48/0x160 S Sun Dec 10 
> 12:10:27 2017 p4 kernel:  [<ffffffffa8800274>] ? 
> SyS_chown+0x94/0xd0 S Sun Dec 10 12:10:27 2017 p4 kernel: 
> [<ffffffffa8c075fb>] ? system_call_fast_compare_end+0xc/0x9b S Sun 
> Dec 10 12:10:27 2017 p4 kernel: ---[ end trace fc137d6061ab0b9c 
> ]--- S Sun Dec 10 12:10:27 2017 p4 kernel: ------------[ cut here 
> ]------------ S Sun Dec 10 12:10:27 2017 p4 kernel: WARNING: CPU:
> 0 PID: 1490 at 
> /var/lib/dkms/aufs/4.9+20161219/build/fs/aufs/cpup.c:423 
> au_cp_regular+0x16c/0x250 [aufs] S Sun Dec 10 12:10:27 2017 p4 
> kernel: .wh..wh.resources-i.ri.000b Please report this warning to 
> aufs-users ML S Sun Dec 10 12:10:27 2017 p4 kernel: Modules linked 
> in: S Sun Dec 10 12:10:27 2017 p4 kernel:  aufs(O) xenfs 
> xen_privcmd joydev hid_generic usbhid hid ppdev sg pcspkr 
> parport_pc parport serio_raw evdev ip_tables x_tables autofs4 ext4 
> crc16 jbd2 crc32c_generic fscrypto ecb glue_helper lrw gf128mul 
> ablk_helper cryptd aes_x86_64 mbcache sr_mod cdrom ata_generic 
> xen_netfront xen_blkfront crc32c_intel ata_piix psmouse cirrus ttm 
> drm_kms_helper drm i2c_piix4 uhci_hcd ehci_hcd usbcore usb_common 
> libata scsi_mod floppy button S Sun Dec 10 12:10:27 2017 p4
> kernel: CPU: 0 PID: 1490 Comm: auplink Tainted: G        W  O 
> 4.9.0-4-amd64 #1 Debian 4.9.65-3 S Sun Dec 10 12:10:27 2017 p4 
> kernel: Hardware name: Xen HVM domU, BIOS 4.4.1-xs116341 01/13/2016
> S Sun Dec 10 12:10:27 2017 p4 kernel:  0000000000000000 
> ffffffffa8928e84 ffffbba581ee7a60 0000000000000000 S Sun Dec 10 
> 12:10:27 2017 p4 kernel:  ffffffffa8675efe ffffbba581ee7d58 
> ffffbba581ee7ab8 0000000000000000 S Sun Dec 10 12:10:27 2017 p4 
> kernel:  ffff9512c3ab3800 ffff95128a932000 ffff951289d38300 
> ffffffffa8675f7f S Sun Dec 10 12:10:27 2017 p4 kernel: Call Trace:
>  S Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffa8928e84>] ? 
> dump_stack+0x5c/0x78 S Sun Dec 10 12:10:27 2017 p4 kernel: 
> [<ffffffffa8675efe>] ? __warn+0xbe/0xe0 S Sun Dec 10 12:10:27 2017 
> p4 kernel:  [<ffffffffa8675f7f>] ? warn_slowpath_fmt+0x5f/0x80 S 
> Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffc064aaec>] ? 
> au_cp_regular+0x16c/0x250 [aufs] S Sun Dec 10 12:10:27 2017 p4 
> kernel:  [<ffffffffc064abc1>] ? au_cp_regular+0x241/0x250 [aufs] S 
> Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffc064ab37>] ? 
> au_cp_regular+0x1b7/0x250 [aufs] S Sun Dec 10 12:10:27 2017 p4 
> kernel:  [<ffffffffc064b30c>] ? cpup_entry+0x73c/0x890 [aufs] S
> Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffc0648674>] ? 
> vfsub_lookup_one_len+0x44/0xf0 [aufs] S Sun Dec 10 12:10:27 2017
> p4 kernel:  [<ffffffffa8935546>] ? sprintf+0x56/0x70 S Sun Dec 10 
> 12:10:27 2017 p4 kernel:  [<ffffffffc064b5e7>] ? 
> au_cpup_single.constprop.23+0x187/0x760 [aufs] S Sun Dec 10 
> 12:10:27 2017 p4 kernel:  [<ffffffffa881a658>] ? dput+0x38/0x250 S 
> Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffc064bfeb>] ? 
> au_cpup_simple+0x5b/0xa0 [aufs] S Sun Dec 10 12:10:27 2017 p4 
> kernel:  [<ffffffffc064c0ff>] ? au_do_sio_cpup_simple+0xcf/0xf0 
> [aufs] S Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffc06609d3>] 
> ? au_pin_and_icpup+0x2a3/0x4e0 [aufs] S Sun Dec 10 12:10:27 2017
> p4 kernel:  [<ffffffffc06610f4>] ? aufs_setattr+0x4e4/0x620 [aufs]
> S Sun Dec 10 12:10:27 2017 p4 kernel:  [<ffffffffa88285b2>] ? 
> xattr_resolve_name+0xa2/0xc0 S Sun Dec 10 12:10:27 2017 p4 kernel: 
> [<ffffffffa882063f>] ? notify_change+0x2ef/0x460 S Sun Dec 10 
> 12:10:27 2017 p4 kernel:  [<ffffffffa87ff0f5>] ? 
> chown_common+0x165/0x1c0 S Sun Dec 10 12:10:27 2017 p4 kernel: 
> [<ffffffffa8957138>] ? strncpy_from_user+0x48/0x160 S Sun Dec 10 
> 12:10:27 2017 p4 kernel:  [<ffffffffa8800274>] ? 
> SyS_chown+0x94/0xd0 S Sun Dec 10 12:10:27 2017 p4 kernel: 
> [<ffffffffa8c075fb>] ? system_call_fast_compare_end+0xc/0x9b S Sun 
> Dec 10 12:10:27 2017 p4 kernel: ---[ end trace fc137d6061ab0b9d 
> ]--- S Sun Dec 10 12:10:27 2017 p4 kernel: ------------[ cut here 
> ]------------
> 
> The errors stop eventually after 10s, and then docker seems to
> work fine.
> 
> This is with the following kernel:
> 
> Linux core.hacksaar.de 4.9.0-4-amd64 #1 SMP Debian 4.9.65-3 
> (2017-12-03) x86_64 GNU/Linux
> 
> I just did an `apt upgrade`, which installed a new kernel.  I have 
> not seen this error before, but it is possible that I missed it.
> 
> Kind regards, Ralf
> 
> _______________________________________________ Filesystems-devel 
> mailing list Filesystems-devel at lists.alioth.debian.org 
> http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/filesystems-devel
>
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