The rk3399-rock-pi-4b device fails to mount the root filesystem over
NFS when the kernel is built with 64K page size.
CONFIG_ARM64_64K_PAGES=y
This regression was first observed with the Linux next-20250717 tag
and continues to persist through next-20250722.
Device: rk3399-rock-pi-4b
Build Configuration: lkftconfig-64k_page_size
Regression Window:
Good: next-20250716
Bad: next-20250717.. Still Bad: next-20250722
Kernel Config Impact:
CONFIG_ARM64_64K_PAGES=y - NFS mount fails
CONFIG_ARM64_4K_PAGES=y - NFS mount works as expected
Regression Analysis:
- New regression? Yes
- Reproducibility? Yes
Boot regression: next-20250717 arm64 rk3399-rock-pi-4b NFS mount
failure with 64K page size
Reported-by: Linux Kernel Functional Testing <lkft(a)linaro.org>
## Boot log
[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034]
[ 0.000000] Linux version 6.16.0-rc6-next-20250717
(tuxmake@tuxmake) (aarch64-linux-gnu-gcc (Debian 13.3.0-16) 13.3.0,
GNU ld (GNU Binutils for Debian) 2.44) #1 SMP PREEMPT @1752747461
[ 0.000000] KASLR disabled due to lack of seed
[ 0.000000] Machine model: Radxa ROCK Pi 4B
[ 0.000000] efi: UEFI not found.
[ 0.000000] earlycon: uart0 at MMIO32 0x00000000ff1a0000 (options
'1500000n8')
[ 0.000000] printk: legacy bootconsole [uart0] enabled
[ 0.000000] OF: reserved mem: Reserved memory: No reserved-memory
node in the DT
[ 0.000000] NUMA: Faking a node at [mem
0x0000000000200000-0x00000000f7ffffff]
<trim>
[ 6.520442] Sending DHCP requests ..
[ 13.295867] platform sdio-pwrseq: deferred probe pending:
pwrseq_simple: reset control not ready
[ 13.295887] dwmmc_rockchip fe310000.mmc: IDMAC supports 32-bit address mode.
[ 13.296260] rockchip-pm-domain
ff310000.power-management:power-controller: sync_state() pending due
to fe310000.mmc
[ 13.296278] rockchip-pm-domain
ff310000.power-management:power-controller: sync_state() pending due
to ff650000.video-codec
[ 13.297085] dwmmc_rockchip fe310000.mmc: Using internal DMA controller.
[ 13.297660] rockchip-pm-domain
ff310000.power-management:power-controller: sync_state() pending due
to ff660000.video-codec
[ 13.298653] dwmmc_rockchip fe310000.mmc: Version ID is 270a
[ 13.299536] rockchip-pm-domain
ff310000.power-management:power-controller: sync_state() pending due
to ff680000.rga
[ 13.300164] dwmmc_rockchip fe310000.mmc: DW MMC controller at irq
49,32 bit host data width,256 deep fifo
[ 13.301117] rockchip-pm-domain
ff310000.power-management:power-controller: sync_state() pending due
to ff880000.i2s
[ 13.304227] rockchip-pm-domain
ff310000.power-management:power-controller: sync_state() pending due
to ff8a0000.i2s
[ 13.305148] rockchip-pm-domain
ff310000.power-management:power-controller: sync_state() pending due
to ff8f0000.vop
[ 13.306071] rockchip-pm-domain
ff310000.power-management:power-controller: sync_state() pending due
to ff900000.vop
[ 13.307009] rockchip-pm-domain
ff310000.power-management:power-controller: sync_state() pending due
to ff940000.hdmi
[ 13.307937] rockchip-pm-domain
ff310000.power-management:power-controller: sync_state() pending due
to ff9a0000.gpu
[ 14.620509] ., OK
[ 14.636949] IP-Config: Got DHCP answer from 10.66.16.15, my address
is 10.66.30.7
[ 14.637647] IP-Config: Complete:
[ 14.637955] device=eth0, hwaddr=0a:fb:82:cd:ed:a8,
ipaddr=10.66.30.7, mask=255.255.240.0, gw=10.66.16.1
[ 14.638845] host=10.66.30.7, domain=lkftlab, nis-domain=(none)
[ 14.639417] bootserver=0.0.0.0, rootserver=10.66.16.116, rootpath=
[ 14.639440] nameserver0=10.66.16.15
[ 14.641679] clk: Disabling unused clocks
[ 14.646347] dw-apb-uart ff1a0000.serial: forbid DMA for kernel console
[ 14.647091] check access for rdinit=/init failed: -2, ignoring
[ 14.762496] VFS: Mounted root (nfs filesystem) on device 0:22.
[ 14.763768] devtmpfs: mounted
[ 14.775761] Freeing unused kernel memory: 4928K
[ 14.776566] Run /sbin/init as init process
[ 95.816464] random: crng init done
[ 195.556677] nfs: server 10.66.16.116 not responding, still trying
..
[ 195.556703] nfs: server 10.66.16.116 not responding, still trying
[ 195.556869] nfs: server 10.66.16.116 not responding, still trying
[ 195.557010] nfs: server 10.66.16.116 not responding, still trying
[ 195.557055] nfs: server 10.66.16.116 not responding, still trying
[ 195.557114] nfs: server 10.66.16.116 not responding, still trying
[ 195.557166] nfs: server 10.66.16.116 not responding, still trying
[ 195.557217] nfs: server 10.66.16.116 not responding, still trying
[ 195.557269] nfs: server 10.66.16.116 not responding, still trying
[ 195.557304] nfs: server 10.66.16.116 not responding, still trying
[ 227.459759] nfs: server 10.66.16.116 OK
[ 227.459868] nfs: server 10.66.16.116 OK
[ 227.681008] nfs: server 10.66.16.116 OK
[ 319.645474] nfs: server 10.66.16.116 OK
[ 407.677657] nfs: server 10.66.16.116 OK
[ 499.834818] nfs: server 10.66.16.116 OK
[ 587.895692] nfs: server 10.66.16.116 OK
[ 680.052774] nfs: server 10.66.16.116 OK
[ 768.113810] nfs: server 10.66.16.116 OK
[ 860.270785] nfs: server 10.66.16.116 OK
#
[ 948.331418] nfs: server 10.66.16.116 OK
#
[ 1096.679211] nfs: server 10.66.16.116 OK
#
[ 1274.856436] nfs: server 10.66.16.116 OK
#
[ 1488.985700] nfs: server 10.66.16.116 OK
## Source
* Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
* Project: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250717/
* Git sha: 024e09e444bd2b06aee9d1f3fe7b313c7a2df1bb
* Git describe: 6.16.0-rc6-next-20250717
* kernel version: next-20250717
* Architectures: arm64 (rock-pi-4b)
* Toolchains: gcc-13
* Kconfigs: defconfig+64K page size
## Test
* Test log: https://qa-reports.linaro.org/api/testruns/29168904/log_file/
* Test LAVA: https://lkft.validation.linaro.org/scheduler/job/8364278#L924
* Test run: https://regressions.linaro.org/lkft/linux-next-master/next-20250717/testrun…
* Test plan: https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/tests/2zzwHDuV3x…
* Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2zzwEbz0aS3AtluE2oRQ…
* Kernel config:
https://storage.tuxsuite.com/public/linaro/lkft/builds/2zzwEbz0aS3AtluE2oRQ…
--
Linaro LKFT
https://lkft.linaro.org
Total jobs: 267
Total errors: 124 (46.44%)
LAVA errors: 0 (0.00%)
Test errors: 107 (40.07%)
Job errors: 1 (0.37%)
Infra errors: 16 (5.99%)
Canceled jobs: 0 (0.00%)
Device type: sm8550-hdk
Total jobs: 4
Total errors: 1 (25.00%)
Error type: Test
Error count: 1 (25.00%)
Error: No match for error type 'Test', message 'tradefed - adb device lost[124d1c34]'
Count: 1 (25.00%)
IDs:
sm8550-hdk-01:
8380015
Device type: qrb5165-rb5
Total jobs: 95
Total errors: 48 (50.53%)
Error type: Test
Error count: 35 (36.84%)
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 587 seconds'
Count: 1 (1.05%)
IDs:
rb5-03:
8379924
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 598 seconds'
Count: 14 (14.74%)
IDs:
rb5-01:
8378300 8379338
rb5-03:
8378379 8379414 8379572 8379913 8379921
8379922
rb5-06:
8377879 8378830 8378928
rb5-07:
8377875 8377905 8378329
Error: No match for error type 'Test', message 'tradefed - adb device lost[4fc7b22]'
Count: 1 (1.05%)
IDs:
rb5-06:
8379441
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 588 seconds'
Count: 1 (1.05%)
IDs:
rb5-01:
8379405
Error: Device NOT found!
Count: 11 (11.58%)
IDs:
rb5-01:
8378334
rb5-03:
8377949 8378301 8378332 8378350 8378839
8379049 8379403
rb5-07:
8378349 8378834 8379355
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 586 seconds'
Count: 1 (1.05%)
IDs:
rb5-03:
8378837
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 599 seconds'
Count: 1 (1.05%)
IDs:
rb5-07:
8378335
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 592 seconds'
Count: 1 (1.05%)
IDs:
rb5-07:
8377999
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 589 seconds'
Count: 1 (1.05%)
IDs:
rb5-03:
8377997
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 593 seconds'
Count: 1 (1.05%)
IDs:
rb5-06:
8377979
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 595 seconds'
Count: 1 (1.05%)
IDs:
rb5-06:
8377943
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 596 seconds'
Count: 1 (1.05%)
IDs:
rb5-07:
8377883
Error type: Infrastructure
Error count: 13 (13.68%)
Error: Connection closed
Count: 13 (13.68%)
IDs:
rb5-01:
8377881 8377906 8377907 8377932 8378297
8378361 8378840 8378990 8378992 8379415
8379437 8379619 8379914
Device type: hi6220-hikey-r2
Total jobs: 28
Total errors: 26 (92.86%)
Error type: Test
Error count: 25 (89.29%)
Error: No match for error type 'Test', message 'The network seems not available, as the ping command failed'
Count: 16 (57.14%)
IDs:
hikey-6220-r2-01:
8378998 8379357 8379366 8379379 8379440
hikey-6220-r2-05:
8378957 8378997 8379337 8379360 8379368
8379381
hikey-6220-r2-06:
8378956 8378996 8379046 8379354 8379584
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 598 seconds'
Count: 6 (21.43%)
IDs:
hikey-6220-r2-02:
8378994 8379382
hikey-6220-r2-04:
8378995 8379398
hikey-6220-r2-06:
8379380 8379404
Error: Device NOT found!
Count: 2 (7.14%)
IDs:
hikey-6220-r2-01:
8379395
hikey-6220-r2-02:
8379401
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 28798 seconds'
Count: 1 (3.57%)
IDs:
hikey-6220-r2-03:
8378954
Error type: Job
Error count: 1 (3.57%)
Error: No match for error type 'Job', message 'login-action timed out after 879 seconds'
Count: 1 (3.57%)
IDs:
hikey-6220-r2-05:
8379571
Device type: hi960-hikey
Total jobs: 24
Total errors: 13 (54.17%)
Error type: Infrastructure
Error count: 3 (12.50%)
Error: Connection closed
Count: 1 (4.17%)
IDs:
hi960-hikey-02:
8379423
Error: Reboot failed
Count: 1 (4.17%)
IDs:
hi960-hikey-01:
8378907
Error: No match for error type 'Infrastructure', message 'wait-device-boardid timed out after 1174 seconds'
Count: 1 (4.17%)
IDs:
hi960-hikey-05:
8378900
Error type: Test
Error count: 10 (41.67%)
Error: No match for error type 'Test', message 'lava-test-interactive timed out after 600 seconds'
Count: 3 (12.50%)
IDs:
hi960-hikey-01:
8379016 8379018
hi960-hikey-02:
8379015
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 598 seconds'
Count: 4 (16.67%)
IDs:
hi960-hikey-02:
8378910 8378981 8378986
hi960-hikey-03:
8378964
Error: Device NOT found!
Count: 2 (8.33%)
IDs:
hi960-hikey-01:
8378906
hi960-hikey-02:
8378914
Error: No match for error type 'Test', message 'tradefed - adb device lost[57DD383701799F9A]'
Count: 1 (4.17%)
IDs:
hi960-hikey-05:
8378898
Device type: dragonboard-845c
Total jobs: 116
Total errors: 36 (31.03%)
Error type: Test
Error count: 36 (31.03%)
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 598 seconds'
Count: 19 (16.38%)
IDs:
db845c-02:
8376896 8376917 8377838 8377850 8377863
8378298 8378330
db845c-04:
8377878 8377929 8378889
db845c-05:
8376928 8377841 8377987
db845c-06:
8378316 8378920
db845c-09:
8377807 8377896
db845c-10:
8377819 8377874
Error: Device NOT found!
Count: 7 (6.03%)
IDs:
db845c-02:
8377847 8377888
db845c-04:
8376916 8377866 8378879
db845c-06:
8377824
db845c-10:
8377988
Error: No match for error type 'Test', message 'tradefed - adb device lost[f3a58ae3]'
Count: 2 (1.72%)
IDs:
db845c-04:
8376918 8378357
Error: No match for error type 'Test', message 'tradefed - adb device lost[e875976d]'
Count: 1 (0.86%)
IDs:
db845c-06:
8378356
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 597 seconds'
Count: 3 (2.59%)
IDs:
db845c-04:
8377455 8377840 8378317
Error: No match for error type 'Test', message 'tradefed - adb device lost[dd3b965f]'
Count: 1 (0.86%)
IDs:
db845c-02:
8377894
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 585 seconds'
Count: 1 (0.86%)
IDs:
db845c-05:
8377837
Error: No match for error type 'Test', message 'lava-docker-test-shell timed out after 581 seconds'
Count: 1 (0.86%)
IDs:
db845c-02:
8376954
Error: No match for error type 'Test', message 'tradefed - adb device lost[d9b7d9b]'
Count: 1 (0.86%)
IDs:
db845c-05:
8376883