OCFS2 and the NBD driver statically configured in the kernel, then the OCFS2 hangs on mount. NBD Driver configured as a module, then mounting the OCFS2 file system works well. Filesystems <*> OCFS2 file system support <*> O2CB Kernelspace Clustering Device Drivers > Block devices <*> Network block device support [Jan16 23:54] rcu: INFO: rcu_preempt self-detected stall on CPU [ +0.000005] rcu: 2-....: (15197 ticks this GP) idle=8c94/1/0x4000000000000000 softirq=3376/3377 fqs=7006 [ +0.000004] rcu: (t=15000 jiffies g=2009 q=65 ncpus=4) [ +0.000003] CPU: 2 PID: 11 Comm: kworker/u8:0 Not tainted 6.7.0-gentoo #18 [ +0.000002] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 4.2023.08-2 11/24/2023 [ +0.000001] Workqueue: o2net o2net_accept_many [ +0.000012] RIP: 0010:queued_spin_lock_slowpath+0x12/0x192 [ +0.000004] Code: 02 00 00 e9 1b a0 5d ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 89 fa 66 90 b9 01 00 00 00 8b 02 85 c0 74 04 f3 90 <eb> f6 f0 0f b1 0a 85 c0 75 ee c3 cc cc cc cc 81 fe 00 01 00 00 75 [ +0.000014] RSP: 0018:ffffc9000006fdc8 EFLAGS: 00000202 [ +0.000002] RAX: 0000000000000001 RBX: ffff88800a849b00 RCX: 0000000000000001 [ +0.000001] RDX: ffff88800a849b98 RSI: 0000000000000001 RDI: ffff88800a849b98 [ +0.000001] RBP: ffff88800a849b98 R08: 00000000801a0019 R09: 00000000801a0019 [ +0.000001] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888006855180 [ +0.000001] R13: ffff888009b12a00 R14: ffffffff82b93a88 R15: ffff888001978e00 [ +0.000001] FS: 0000000000000000(0000) GS:ffff88807bd00000(0000) knlGS:0000000000000000 [ +0.000003] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0.000001] CR2: 00005643f05c83c8 CR3: 0000000009e60000 CR4: 00000000000006b0 [ +0.000001] Call Trace: [ +0.000008] <IRQ> [ +0.000003] ? rcu_dump_cpu_stacks+0x8f/0xb3 [ +0.000004] ? rcu_sched_clock_irq+0x2ff/0x927 [ +0.000002] ? update_load_avg+0x327/0x350 [ +0.000003] ? timekeeping_update+0xe2/0x110 [ +0.000002] ? __pfx_tick_nohz_highres_handler+0x10/0x10 [ +0.000003] ? update_process_times+0x56/0x75 [ +0.000002] ? tick_nohz_highres_handler+0x38/0x68 [ +0.000002] ? __hrtimer_run_queues+0x90/0xf3 [ +0.000002] ? ktime_get_update_offsets_now+0x3d/0xa3 [ +0.000002] ? hrtimer_interrupt+0x8d/0x15f [ +0.000003] ? __sysvec_apic_timer_interrupt+0x5b/0x6a [ +0.000003] ? sysvec_apic_timer_interrupt+0x5f/0x79 [ +0.000003] </IRQ> [ +0.000000] <TASK> [ +0.000001] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ +0.000003] ? queued_spin_lock_slowpath+0x12/0x192 [ +0.000002] lock_sock_nested+0x19/0x3e [ +0.000003] inet_accept+0x57/0x91 [ +0.000003] o2net_accept_many+0xac/0x398 [ +0.000002] ? __schedule+0x9b9/0x9f3 [ +0.000003] ? flush_to_ldisc+0x8e/0x14b [ +0.000002] process_scheduled_works+0x152/0x208 [ +0.000004] worker_thread+0x1c1/0x21b [ +0.000002] ? __pfx_worker_thread+0x10/0x10 [ +0.000003] kthread+0xe3/0xeb [ +0.000002] ? __pfx_kthread+0x10/0x10 [ +0.000002] ret_from_fork+0x1f/0x31 [ +0.000003] ? __pfx_kthread+0x10/0x10 [ +0.000002] ret_from_fork_asm+0x1b/0x30 [ +0.000003] </TASK> [ +0.000003] Sending NMI from CPU 2 to CPUs 3: [ +0.000018] NMI backtrace for cpu 3 [ +0.000018] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 6.7.0-gentoo #18 [ +0.000002] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 4.2023.08-2 11/24/2023 [ +0.000001] RIP: 0010:queued_read_unlock+0x9/0xe [ +0.000004] Code: 45 85 e4 0f 94 c0 5b 5d 41 5c 41 5d c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 b8 00 fe ff ff f0 0f c1 07 <c3> cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 31 [ +0.000002] RSP: 0018:ffffc90000144aa8 EFLAGS: 00000247 [ +0.000001] RAX: 0000000000000200 RBX: ffff88800a849b00 RCX: 00000000ab69bed1 [ +0.000001] RDX: 0000000000000001 RSI: 00000000fffffe00 RDI: ffff88800a849d18 [ +0.000001] RBP: ffffffff814c4e81 R08: 0000000000000430 R09: 0000000000000000 [ +0.000001] R10: 000000000e00a8c0 R11: 0000000000000006 R12: ffff88800a849d18 [ +0.000001] R13: 00000000ab69bed1 R14: 0000000000000020 R15: 0000000000000020 [ +0.000001] FS: 0000000000000000(0000) GS:ffff88807bd80000(0000) knlGS:0000000000000000 [ +0.000002] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ +0.000001] CR2: 00007ffc7e51af44 CR3: 000000001cb4c000 CR4: 00000000000006b0 [ +0.000001] Call Trace: [ +0.000002] <NMI> [ +0.000001] ? nmi_cpu_backtrace+0x94/0xc1 [ +0.000003] ? nmi_cpu_backtrace_handler+0x8/0x10 [ +0.000002] ? nmi_handle+0x4f/0xd6 [ +0.000002] ? default_do_nmi+0x3f/0x1ff [ +0.000003] ? exc_nmi+0x9e/0x107 [ +0.000002] ? end_repeat_nmi+0xf/0x60 [ +0.000002] ? __pfx_o2net_listen_data_ready+0x10/0x10 [ +0.000002] ? queued_read_unlock+0x9/0xe [ +0.000002] ? queued_read_unlock+0x9/0xe [ +0.000002] ? queued_read_unlock+0x9/0xe [ +0.000002] </NMI> [ +0.000000] <IRQ> [ +0.000001] _raw_read_unlock_bh+0x5/0x13 [ +0.000002] o2net_listen_data_ready+0x56/0x73 [ +0.000002] tcp_data_queue+0x416/0x90f [ +0.000004] tcp_rcv_established+0x2f1/0x3a3 [ +0.000002] tcp_v4_do_rcv+0xb8/0x18f [ +0.000003] tcp_v4_rcv+0x6ca/0x938 [ +0.000002] ip_protocol_deliver_rcu+0x97/0x134 [ +0.000002] ip_local_deliver_finish+0x79/0x87 [ +0.000002] ip_sublist_rcv_finish+0x28/0x38 [ +0.000002] ip_sublist_rcv+0x166/0x18e [ +0.000002] ? __netif_receive_skb_core.constprop.0+0x689/0x6fc [ +0.000003] ip_list_rcv+0xe7/0x10f [ +0.000002] __netif_receive_skb_list_core+0xf1/0x119 [ +0.000002] netif_receive_skb_list_internal+0x1cd/0x206 [ +0.000002] gro_normal_list+0x1d/0x3f [ +0.000002] napi_complete_done+0x76/0x10b [ +0.000007] virtnet_poll+0x274/0x394 [virtio_net] [ +0.000007] __napi_poll.constprop.0+0x2a/0x111 [ +0.000002] net_rx_action+0xff/0x1f6 [ +0.000002] __do_softirq+0xb8/0x1b6 [ +0.000003] __irq_exit_rcu+0x3d/0x7c [ +0.000002] common_interrupt+0x73/0x8b [ +0.000002] </IRQ> [ +0.000001] <TASK> [ +0.000000] asm_common_interrupt+0x22/0x40 [ +0.000002] RIP: 0010:default_idle+0xb/0x11 [ +0.000002] Code: 00 4d 29 c8 4c 01 c7 4c 29 c2 e9 6e ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 eb 07 0f 00 2d f7 b0 38 00 fb f4 <fa> c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ +0.000001] RSP: 0018:ffffc900000b7ee8 EFLAGS: 00000206 [ +0.000001] RAX: ffff88807bda00e0 RBX: ffff888001988e00 RCX: 000000cd42e4dffb [ +0.000001] RDX: 0000000000000000 RSI: 00000014d791c300 RDI: 0000000000028504 [ +0.000001] RBP: 0000000000000000 R08: 0000000000000004 R09: 00000014d8fff900 [ +0.000000] R10: 0000000000000202 R11: 000000000000000f R12: 0000000000000000 [ +0.000001] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000000 [ +0.000001] default_idle_call+0x1f/0x2a [ +0.000002] do_idle+0xc6/0x1d3 [ +0.000002] cpu_startup_entry+0x25/0x27 [ +0.000002] start_secondary+0xf3/0xf3 [ +0.000003] secondary_startup_64_no_verify+0x165/0x16b [ +0.000002] </TASK>
(In reply to Urban Oettli from comment #0) > OCFS2 and the NBD driver statically configured in the kernel, then the OCFS2 > hangs on mount. > > NBD Driver configured as a module, then mounting the OCFS2 file system works > well. > > Filesystems > <*> OCFS2 file system support > > <*> O2CB Kernelspace Clustering > > Device Drivers > Block devices > <*> Network block device support > The same effect (as described above) is achieved if Networking support -> [*] Wireless ---> is switched on. There is no possibility to compile this as a module and that is fatal. Networking support -> [ ] Wireless (OCFS2 can be mounted) Networking support -> [* ] Wireless (OCFS2 hangs forever on mount) --- config-6.7.0-gentoo.old 2024-01-19 12:13:39.119598742 +0100 +++ config-6.7.0-gentoo 2024-01-19 12:31:38.593967801 +0100 @@ -1731,7 +1731,13 @@ CONFIG_STREAM_PARSER=y # CONFIG_MCTP is not set CONFIG_FIB_RULES=y -# CONFIG_WIRELESS is not set +CONFIG_WIRELESS=y +# CONFIG_CFG80211 is not set + +# +# CFG80211 needs to be enabled for MAC80211 +# +CONFIG_MAC80211_STA_HASH_MAX_SIZE=0 # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set # CONFIG_CAIF is not set
I am also directly affected by this issue. Many thanks to Urban to find out the dependency on other modules being compiled static into the kernel binary or loaded as module. A fix would be greatly appreciated.
We're watching the upstream bug and will backport any fixes identified. Please contribute there if you have information to add
