After updating my test-installation of PBS to the new 7.0 kernel, I see the following error from time to time:
Code:
[ 6741.128241] ------------[ cut here ]------------
[ 6741.128252] [CRTC:36:crtc-0] vblank wait timed out
[ 6741.128258] WARNING: drivers/gpu/drm/drm_atomic_helper.c:1921 at drm_atomic_helper_wait_for_vblanks.part.0+0x240/0x260, CPU#0: kworker/0:0/6947
[ 6741.128281] Modules linked in: nfsv3 nfs_acl rpcsec_gss_krb5 auth_rpcgss nfsv4 nfs lockd grace netfs bonding tls sunrpc binfmt_misc aesni_intel pcspkr vmgenid bochs input_leds joydev mac_hid sch_fq_codel efi_pstore nfnetlink vsock_loopback vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vsock vmw_vmci dmi_sysfs qemu_fw_cfg ip_tables x_tables autofs4 hid_generic usbhid hid zfs(PO) spl(O) btrfs libblake2b xor raid6_pq psmouse serio_raw i2c_piix4 i2c_smbus uhci_hcd ehci_pci ehci_hcd pata_acpi floppy
[ 6741.128340] CPU: 0 UID: 0 PID: 6947 Comm: kworker/0:0 Tainted: P O 7.0.0-3-pve #1 PREEMPT(lazy)
[ 6741.128350] Tainted: [P]=PROPRIETARY_MODULE, [O]=OOT_MODULE
[ 6741.128355] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 4.2025.05-2 11/13/2025
[ 6741.128363] Workqueue: events drm_fb_helper_damage_work
[ 6741.128370] RIP: 0010:drm_atomic_helper_wait_for_vblanks.part.0+0x247/0x260
[ 6741.128377] Code: ff 84 c0 74 86 48 8d 75 a8 4c 89 f7 e8 c2 1e 3f ff 8b 45 98 85 c0 0f 85 f7 fe ff ff 48 8d 3d c0 6a 97 01 48 8b 53 20 8b 73 60 <67> 48 0f b9 3a e9 df fe ff ff e8 ba 83 51 00 66 2e 0f 1f 84 00 00
[ 6741.128391] RSP: 0018:ffffd51c4005fbd0 EFLAGS: 00010246
[ 6741.128396] RAX: 0000000000000000 RBX: ffff8e1c450c6bd0 RCX: 0000000000000000
[ 6741.128403] RDX: ffff8e1cbfbfb7e0 RSI: 0000000000000024 RDI: ffffffffa4623b50
[ 6741.128409] RBP: ffffd51c4005fc40 R08: 0000000000000000 R09: 0000000000000000
[ 6741.128415] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 6741.128422] R13: 0000000000000000 R14: ffff8e1c5eea4c30 R15: ffff8e1c46589c80
[ 6741.128430] FS: 0000000000000000(0000) GS:ffff8e1d18b0f000(0000) knlGS:0000000000000000
[ 6741.128438] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6741.128444] CR2: 00007ad53800f228 CR3: 000000001bffd000 CR4: 00000000000006f0
[ 6741.128452] Call Trace:
[ 6741.128456] <TASK>
[ 6741.128461] ? __pfx_autoremove_wake_function+0x10/0x10
[ 6741.128469] drm_atomic_helper_commit_tail+0xa9/0xd0
[ 6741.128475] commit_tail+0x11f/0x1b0
[ 6741.128480] drm_atomic_helper_commit+0x132/0x160
[ 6741.128486] drm_atomic_commit+0xad/0xf0
[ 6741.128492] ? __pfx___drm_printfn_info+0x10/0x10
[ 6741.128498] drm_atomic_helper_dirtyfb+0x1d5/0x2c0
[ 6741.128505] drm_fbdev_shmem_helper_fb_dirty+0x4d/0xb0
[ 6741.128510] drm_fb_helper_damage_work+0xf2/0x1a0
[ 6741.128516] process_one_work+0x1a9/0x3c0
[ 6741.128522] worker_thread+0x1b8/0x360
[ 6741.128527] ? _raw_spin_unlock_irqrestore+0x11/0x60
[ 6741.128534] ? __pfx_worker_thread+0x10/0x10
[ 6741.128539] kthread+0xf7/0x130
[ 6741.128707] ? __pfx_kthread+0x10/0x10
[ 6741.128859] ret_from_fork+0x2dc/0x3a0
[ 6741.129002] ? __pfx_kthread+0x10/0x10
[ 6741.129141] ret_from_fork_asm+0x1a/0x30
[ 6741.129280] </TASK>
[ 6741.129428] ---[ end trace 0000000000000000 ]---
I see currently no negative effects from this error; it appears only on the console and dmesg.
uname:
Linux pbs 7.0.0-3-pve #1 SMP PREEMPT_DYNAMIC PMX 7.0.0-3 (2026-04-21T22:56Z) x86_64 GNU/Linux
Used system: PBS VM running on PVE
Mounted file systems:
- root on ZFS
- S3 Cache Disk on ext4
- Backup storage (beside S3 off-site backup) on NFS
