Niltze, Edward- Created a Metztli-Reiser4 Debian Stretch AMD64 image for Google Compute Engine (GCE). At the time I integrated reiser4-patched Linux-4.11.5 kernel from kernel.org wrapped in a Debian packaging for 4.11.4-1; yes its a hack, but a carefully developed hack as I applied your patch for Linux-4.11 and generated modules for the Debian-Installer. As I was developing/testing the image for Google Cloud, on some instances I got the issue below by viewing the serial console output < https://cloud.google.com/compute/docs/instances/interacting-with-serial-console > and wondered if you might provides some insight. Thank you in advance. [[0;32m OK [0[ 11.610689] ------------[ cut here ]------------ [ 11.615662] kernel BUG at /mnt/chiucuetetl/usr/src/linux/fs/reiser4/block_alloc.c:152! [ 11.624829] invalid opcode: 0000 [#1] SMP [ 11.629707] Modules linked in: ip_tables x_tables autofs4 reiser4 sd_mod crc32c_intel virtio_scsi scsi_mod virtio_net aesni_intel aes_x86_64 crypto_simd cryptd glue_helper psmouse virtio_pci virtio_ring virtio i2c_piix4 [ 11.649506] CPU: 0 PID: 462 Comm: systemd-tmpfile Not tainted 4.11.0-1+reiser4.0.1-amd64 #1 Debian 4.11.4-1+reiser4.0.1 [ 11.660628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 11.670892] task: ffff8e06b69cf000 task.stack: ffff99274059c000 [ 11.676967] RIP: 0010:sub_from_ctx_grabbed.isra.9.part.10+0x5/0x10 [reiser4] [ 11.686143] RSP: 0018:ffff99274059fbb0 EFLAGS: 00010202 [ 11.692026] RAX: 0000000000000000 RBX: ffff8e06b6908000 RCX: 0000000000000000 [ 11.699292] RDX: ffff8e06e9ae3400 RSI: 0000000000000001 RDI: ffff8e06e9553c40 [ 11.706718] RBP: ffff8e06e9553c40 R08: 0000000000000000 R09: 0000000000000001 [ 11.714111] R10: 0000000000000000 R11: 0000000000000001 R12: ffff8e06e97ea7d0 [ 11.721404] R13: ffff99274059fc70 R14: ffff8e06e97f1518 R15: 0000000000000000 [ 11.728699] FS: 00007f4286b4d8c0(0000) GS:ffff8e06ec800000(0000) knlGS:0000000000000000 [ 11.737534] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 11.743682] CR2: 00007f9d6af5d228 CR3: 0000000068e2a000 CR4: 00000000001406f0 [ 11.750954] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 11.758217] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 11.765487] Call Trace: [ 11.768082] ? grabbed2flush_reserved_nolock+0x7b/0x90 [reiser4] [ 11.774242] ? jnode_make_dirty_locked+0xe6/0x1b0 [reiser4] [ 11.780250] ? znode_make_dirty+0x28/0xe0 [reiser4] [ 11.785285] ? update_sd+0x288/0x470 [reiser4] [ 11.790063] ? __switch_to+0x234/0x4d0 [ 11.793966] ? write_sd_by_inode_common+0x8c/0x90 [reiser4] [ 11.799777] ? reiser4_dirty_inode+0x3e/0xd0 [reiser4] [ 11.805083] ? __mark_inode_dirty+0x165/0x350 [ 11.809669] ? generic_update_time+0x7b/0xd0 [ 11.814201] ? current_time+0x38/0x80 [ 11.818002] ? touch_atime+0xab/0xd0 [ 11.821737] ? read_unix_file+0x49c/0x4d0 [reiser4] [ 11.826769] ? reiser4_read_dispatch+0x59/0x130 [reiser4] [ 11.832442] ? vfs_read+0x91/0x130 [ 11.836068] ? SyS_read+0x52/0xc0 [ 11.839513] ? system_call_fast_compare_end+0xc/0x9b [ 11.844633] Code: 84 00 00 00 00 00 0f 1f 44 00 00 48 8b 47 28 89 f6 48 85 c0 74 07 48 01 f0 48 89 47 28 48 29 77 20 48 01 77 18 c3 0f 1f 44 00 00 <0f> 0b 66 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 53 48 63 df [ 11.863676] RIP: sub_from_ctx_grabbed.isra.9.part.10+0x5/0x10 [reiser4] RSP: ffff99274059fbb0 m] Started Remou[ 11.872615] ---[ end trace 7824876f84a24103 ]--- nt Root and Kernel File Systems. [ 11.883476] reiser4[systemd-tmpfile(462)]: release_unix_file (/mnt/chiucuetetl/usr/src/linux/fs/reiser4/plugin/file/file.c:2358)[vs-44]: [ 11.883476] WARNING: out of memory? [ 32.890111] INFO: rcu_sched detected stalls on CPUs/tasks: [ 32.895770] (detected by 0, t=5252 jiffies, g=336, c=335, q=54) [ 32.901997] All QSes seen, last rcu_sched kthread activity 5252 (4294900518-4294895266), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 32.913952] systemd-tmpfile R running task 0 462 1 0x0000000a [ 32.921147] Call Trace: [ 32.923763] <IRQ> [ 32.925911] ? sched_show_task+0xcb/0x130 [ 32.930055] ? rcu_check_callbacks+0x8a7/0x8b0 [ 32.934640] ? tick_sched_handle.isra.15+0x50/0x50 [ 32.939574] ? update_process_times+0x28/0x50 [ 32.944412] ? tick_sched_handle.isra.15+0x20/0x50 [ 32.949343] ? tick_sched_timer+0x38/0x70 [ 32.953667] ? __hrtimer_run_queues+0xdc/0x240 [ 32.958357] ? hrtimer_interrupt+0xa6/0x1f0 [ 32.962849] ? smp_apic_timer_interrupt+0x34/0x50 [ 32.967802] ? apic_timer_interrupt+0x82/0x90 [ 32.972291] </IRQ> [ 32.974550] ? native_queued_spin_lock_slowpath+0x21/0x190 [ 32.980521] ? _raw_spin_lock+0x1d/0x20 [ 32.984516] ? reiser4_free_file_fsdata+0x19/0x50 [reiser4] [ 32.990336] ? release_unix_file+0x87/0x190 [reiser4] [ 32.995547] ? reiser4_release_dispatch+0x43/0x110 [reiser4] [ 33.001549] ? __fput+0xd5/0x210 [ 33.004921] ? task_work_run+0x79/0xa0 [ 33.008908] ? do_exit+0x2ed/0xb70 [ 33.012450] ? vfs_read+0x91/0x130 [ 33.015986] ? SyS_read+0x52/0xc0 [ 33.019439] ? rewind_stack_do_exit+0x17/0x20 [ 33.023934] rcu_sched kthread starved for 5252 jiffies! g336 c335 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 [ 33.033388] rcu_sched R running task 0 8 2 0x00000000 [ 33.040574] Call Trace: [ 33.043159] ? __schedule+0x3c2/0x8b0 [ 33.047032] ? schedule+0x32/0x80 [ 33.050475] ? schedule_timeout+0x17c/0x310 [ 33.054886] ? del_timer_sync+0x50/0x50 [ 33.058867] ? rcu_gp_kthread+0x505/0x850 [ 33.063008] ? prepare_to_swait_event+0x1f/0x40 [ 33.067677] ? rcu_gp_kthread+0x505/0x850 [ 33.071831] ? kthread+0xfc/0x130 [ 33.075288] ? rcu_note_context_switch+0xe0/0xe0 [ 33.080052] ? kthread_create_on_node+0x70/0x70 [ 33.084715] ? ret_from_fork+0x26/0x40 [ 60.054109] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [systemd-tmpfile:462] [ 60.062393] Modules linked in: ip_tables x_tables autofs4 reiser4 sd_mod crc32c_intel virtio_scsi scsi_mod virtio_net aesni_intel aes_x86_64 crypto_simd cryptd glue_helper psmouse virtio_pci virtio_ring virtio i2c_piix4 [ 60.082069] CPU: 0 PID: 462 Comm: systemd-tmpfile Tainted: G D 4.11.0-1+reiser4.0.1-amd64 #1 Debian 4.11.4-1+reiser4.0.1 [ 60.094264] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.103603] task: ffff8e06b69cf000 task.stack: ffff99274059c000 [ 60.110564] RIP: 0010:native_queued_spin_lock_slowpath+0xf/0x190 [ 60.116777] RSP: 0018:ffff99274059fdf0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10 [ 60.124466] RAX: 0000000000000001 RBX: ffff8e06e5ecf300 RCX: 0000000000000000 [ 60.131720] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8e06e97f1400 [ 60.138972] RBP: ffff8e06e5ecf300 R08: 0000000000000000 R09: 000000000000016b [ 60.146247] R10: ffff8e06e5ecf310 R11: ffffffffbaabff59 R12: ffff8e06e97f1518 [ 60.153500] R13: ffff8e06e9ae3400 R14: ffff8e06e5ecf300 R15: ffff8e06e97f1518 [ 60.160761] FS: 0000000000000000(0000) GS:ffff8e06ec800000(0000) knlGS:0000000000000000 [ 60.168969] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.174836] CR2: 00007f9d69b66ab4 CR3: 0000000052409000 CR4: 00000000001406f0 [ 60.182181] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.189784] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.197485] Call Trace: [ 60.200057] ? _raw_spin_lock+0x1d/0x20 [ 60.204046] ? reiser4_free_file_fsdata+0x19/0x50 [reiser4] [ 60.209768] ? release_unix_file+0x87/0x190 [reiser4] [ 60.214966] ? reiser4_release_dispatch+0x43/0x110 [reiser4] [ 60.220841] ? __fput+0xd5/0x210 [ 60.224281] ? task_work_run+0x79/0xa0 [ 60.228153] ? do_exit+0x2ed/0xb70 [ 60.231682] ? vfs_read+0x91/0x130 [ 60.235200] ? SyS_read+0x52/0xc0 [ 60.238643] ? rewind_stack_do_exit+0x17/0x20 [ 60.243220] Code: 0e 84 c0 74 f4 eb 02 f3 90 8b 07 84 c0 75 f8 c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 0f 1f 44 00 00 ba 01 00 00 00 <8b> 07 85 c0 75 0a 3e 0f b1 17 85 c0 75 f2 f3 c3 f3 90 eb ec 81 [ 88.054113] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [systemd-tmpfile:462] [ 88.062287] Modules linked in: ip_tables x_tables autofs4 reiser4 sd_mod crc32c_intel virtio_scsi scsi_mod virtio_net aesni_intel aes_x86_64 crypto_simd cryptd glue_helper psmouse virtio_pci virtio_ring virtio i2c_piix4 [ 88.081898] CPU: 0 PID: 462 Comm: systemd-tmpfile Tainted: G D L 4.11.0-1+reiser4.0.1-amd64 #1 Debian 4.11.4-1+reiser4.0.1 [ 88.094017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.103369] task: ffff8e06b69cf000 task.stack: ffff99274059c000 [ 88.109943] RIP: 0010:native_queued_spin_lock_slowpath+0x11/0x190 [ 88.116711] RSP: 0018:ffff99274059fdf0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10 [ 88.124406] RAX: 0000000000000001 RBX: ffff8e06e5ecf300 RCX: 0000000000000000 [ 88.131662] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8e06e97f1400 [ 88.138921] RBP: ffff8e06e5ecf300 R08: 0000000000000000 R09: 000000000000016b [ 88.146176] R10: ffff8e06e5ecf310 R11: ffffffffbaabff59 R12: ffff8e06e97f1518 [ 88.153434] R13: ffff8e06e9ae3400 R14: ffff8e06e5ecf300 R15: ffff8e06e97f1518 [ 88.160785] FS: 0000000000000000(0000) GS:ffff8e06ec800000(0000) knlGS:0000000000000000 [ 88.168998] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 88.175058] CR2: 00007f9d69b66ab4 CR3: 0000000052409000 CR4: 00000000001406f0 [ 88.182328] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 88.189748] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 88.197006] Call Trace: [ 88.199583] ? _raw_spin_lock+0x1d/0x20 [ 88.203585] ? reiser4_free_file_fsdata+0x19/0x50 [reiser4] [ 88.209303] ? release_unix_file+0x87/0x190 [reiser4] [ 88.214508] ? reiser4_release_dispatch+0x43/0x110 [reiser4] [ 88.220388] ? __fput+0xd5/0x210 [ 88.223746] ? task_work_run+0x79/0xa0 [ 88.227944] ? do_exit+0x2ed/0xb70 [ 88.231628] ? vfs_read+0x91/0x130 [ 88.235155] ? SyS_read+0x52/0xc0 [ 88.238598] ? rewind_stack_do_exit+0x17/0x20 [ 88.243077] Code: c0 74 f4 eb 02 f3 90 8b 07 84 c0 75 f8 c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 0f 1f 44 00 00 ba 01 00 00 00 8b 07 <85> c0 75 0a 3e 0f b1 17 85 c0 75 f2 f3 c3 f3 90 eb ec 81 fe 00 [ 95.910172] INFO: rcu_sched detected stalls on CPUs/tasks: [ 95.916110] (detected by 0, t=21007 jiffies, g=336, c=335, q=54) [ 95.922986] All QSes seen, last rcu_sched kthread activity 21007 (4294916273-4294895266), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 95.936048] systemd-tmpfile R running task 0 462 1 0x0000000a [ 95.944386] Call Trace: [ 95.947248] <IRQ> [ 95.949482] ? sched_show_task+0xcb/0x130 [ 95.953606] ? rcu_check_callbacks+0x8a7/0x8b0 [ 95.958929] ? tick_sched_handle.isra.15+0x50/0x50 [ 95.964287] ? update_process_times+0x28/0x50 [ 95.968776] ? tick_sched_handle.isra.15+0x20/0x50 [ 95.974038] ? tick_sched_timer+0x38/0x70 [ 95.979040] ? __hrtimer_run_queues+0xdc/0x240 [ 95.983817] ? hrtimer_interrupt+0xa6/0x1f0 [ 95.988138] ? smp_apic_timer_interrupt+0x34/0x50 [ 95.992958] ? apic_timer_interrupt+0x82/0x90 [ 95.997443] </IRQ> [ 96.000645] ? native_queued_spin_lock_slowpath+0x11/0x190 [ 96.007229] ? _raw_spin_lock+0x1d/0x20 [ 96.011857] ? reiser4_free_file_fsdata+0x19/0x50 [reiser4] [ 96.020480] ? release_unix_file+0x87/0x190 [reiser4] [ 96.026154] ? reiser4_release_dispatch+0x43/0x110 [reiser4] [ 96.031948] ? __fput+0xd5/0x210 [ 96.035606] ? task_work_run+0x79/0xa0 [ 96.039792] ? do_exit+0x2ed/0xb70 [ 96.043849] ? vfs_read+0x91/0x130 [ 96.047765] ? SyS_read+0x52/0xc0 [ 96.054662] ? rewind_stack_do_exit+0x17/0x20 [ 96.060605] rcu_sched kthread starved for 21007 jiffies! g336 c335 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 [ 96.071078] rcu_sched R running task 0 8 2 0x00000000 [ 96.078252] Call Trace: [ 96.081001] ? __schedule+0x3c2/0x8b0 [ 96.084951] ? schedule+0x32/0x80 [ 96.088387] ? schedule_timeout+0x17c/0x310 [ 96.092695] ? del_timer_sync+0x50/0x50 [ 96.096645] ? rcu_gp_kthread+0x505/0x850 [ 96.100770] ? prepare_to_swait_event+0x1f/0x40 [ 96.105429] ? rcu_gp_kthread+0x505/0x850 [ 96.109567] ? kthread+0xfc/0x130 [ 96.113044] ? rcu_note_context_switch+0xe0/0xe0 [ 96.117780] ? kthread_create_on_node+0x70/0x70 [ 96.122429] ? ret_from_fork+0x26/0x40 [ 120.054111] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [systemd-tmpfile:462] [ 120.062449] Modules linked in: ip_tables x_tables autofs4 reiser4 sd_mod crc32c_intel virtio_scsi scsi_mod virtio_net aesni_intel aes_x86_64 crypto_simd cryptd glue_helper psmouse virtio_pci virtio_ring virtio i2c_piix4 [ 120.082061] CPU: 0 PID: 462 Comm: systemd-tmpfile Tainted: G D L 4.11.0-1+reiser4.0.1-amd64 #1 Debian 4.11.4-1+reiser4.0.1 [ 120.094185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 120.103518] task: ffff8e06b69cf000 task.stack: ffff99274059c000 [ 120.110192] RIP: 0010:native_queued_spin_lock_slowpath+0xf/0x190 [ 120.116840] RSP: 0018:ffff99274059fdf0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff10 [ 120.124540] RAX: 0000000000000001 RBX: ffff8e06e5ecf300 RCX: 0000000000000000 [ 120.131963] RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8e06e97f1400 [ 120.139575] RBP: ffff8e06e5ecf300 R08: 0000000000000000 R09: 000000000000016b [ 120.146846] R10: ffff8e06e5ecf310 R11: ffffffffbaabff59 R12: ffff8e06e97f1518 [ 120.154095] R13: ffff8e06e9ae3400 R14: ffff8e06e5ecf300 R15: ffff8e06e97f1518 [ 120.161342] FS: 0000000000000000(0000) GS:ffff8e06ec800000(0000) knlGS:0000000000000000 [ 120.169545] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 120.175598] CR2: 00007f9d69b66ab4 CR3: 0000000052409000 CR4: 00000000001406f0 [ 120.182885] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 120.190155] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 120.197407] Call Trace: [ 120.199989] ? _raw_spin_lock+0x1d/0x20 [ 120.204278] ? reiser4_free_file_fsdata+0x19/0x50 [reiser4] [ 120.210003] ? release_unix_file+0x87/0x190 [reiser4] [ 120.215198] ? reiser4_release_dispatch+0x43/0x110 [reiser4] [ 120.221001] ? __fput+0xd5/0x210 [ 120.224349] ? task_work_run+0x79/0xa0 [ 120.228219] ? do_exit+0x2ed/0xb70 [ 120.231765] ? vfs_read+0x91/0x130 [ 120.235284] ? SyS_read+0x52/0xc0 [ 120.238719] ? rewind_stack_do_exit+0x17/0x20 [ 120.243193] Code: 0e 84 c0 74 f4 eb 02 f3 90 8b 07 84 c0 75 f8 c3 66 90 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 0f 1f 44 00 00 ba 01 00 00 00 <8b> 07 85 c0 75 0a 3e 0f b1 17 85 c0 75 f2 f3 c3 f3 90 eb ec 81 Best Professional Regards. -- Jose R R http://metztli.it --------------------------------------------------------------------------------------------- Download Metztli Reiser4: Debian Stretch with Linux 4.11 --------------------------------------------------------------------------------------------- for AMD64 https://sf.net/projects/metztli-reiser4/ --------------------------------------------------------------------------------------------- Try at no charge http://b2evolution.net for http://OpenShift.com PaaS --------------------------------------------------------------------------------------------- from our GitHub http://Nepohualtzintzin.com repository. 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