autopkgtest fails in focal

[Balint Reczey]

https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-focal/focal/arm64/g/gfs2-utils/20200908_130334_629b9@/log.gz

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[ 65.066291] Unable to handle kernel access to user memory outside uaccess routines at virtual address 0000000000000008
[ 65.073101] Mem abort info:
[ 65.075053] ESR = 0x96000044
[ 65.076338] EC = 0x25: DABT (current EL), IL = 32 bits
[ 65.078592] SET = 0, FnV = 0
[ 65.080370] EA = 0, S1PTW = 0
[ 65.082311] Data abort info:
[ 65.085222] ISV = 0, ISS = 0x00000044
[ 65.088187] CM = 0, WnR = 1
[ 65.089705] user pgtable: 4k pages, 48-bit VAs, pgdp=00000000913b5000
[ 65.093796] [0000000000000008] pgd=0000000000000000
[ 65.097664] Internal error: Oops: 96000044 [#1] SMP
[ 65.101933] Modules linked in: gfs2 dlm sctp iptable_mangle xt_TCPMSS xt_tcpudp bpfilter nls_iso8859_1 dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua crct10dif_ce ofpart redboot cmdlinepart cfi_cmdset_0001 cfi_probe cfi_util gen_probe physmap map_funcs chipreg mtd qemu_fw_cfg uio_pdrv_genirq uio sch_fq_codel drm ip_tables x_tables autofs4 btrfs xor xor_neon zstd_compress raid6_pq libcrc32c gpio_keys virtio_net virtio_blk net_failover failover
[ 65.119912] CPU: 0 PID: 1977 Comm: gfs2_grow Not tainted 5.4.0-47-generic #51-Ubuntu
[ 65.123725] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
[ 65.127227] pstate: a0400005 (NzCv daif +PAN -UAO)
[ 65.129337] pc : gfs2_log_commit+0x150/0x4d8 [gfs2]
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