Hi, The same lock-up has occurred with a new kernel version:
Jun 07 14:31:39 pushan kernel: Linux version 7.0.9+deb14-amd64 ( [email protected]) (x86_64-linux-gnu-gcc-15 (Debian 15.2.0-17)> ... Jun 29 14:19:47 pushan kernel: BUG: kernel NULL pointer dereference, address: 0000000000000040 Jun 29 14:19:48 pushan kernel: #PF: supervisor read access in kernel mode Jun 29 14:19:48 pushan kernel: #PF: error_code(0x0000) - not-present page Jun 29 14:19:48 pushan kernel: PGD 0 P4D 0 Jun 29 14:19:48 pushan kernel: Oops: Oops: 0000 [#1] SMP PTI Jun 29 14:19:48 pushan kernel: CPU: 6 UID: 1000 PID: 1532627 Comm: chrome Not tainted 7.0.9+deb14-amd64 #1 PREEMPT(lazy) Debian 7.0.9-1 Jun 29 14:19:48 pushan kernel: Hardware name: Acer Veriton S680G /Veriton M680G, BIOS P01-A4 05/27/2010 Jun 29 14:19:48 pushan kernel: RIP: 0010:nouveau_fence_sync+0x12c/0x1b0 [nouveau] Jun 29 14:19:48 pushan kernel: Code: 74 08 48 3d 20 dd d2 c0 75 aa e8 bf 47 b1 c6 49 8b 76 50 48 85 f6 74 97 48 8b 85 f0 00 00 00 48 8b 96 f0 00 00 00 48 8b 40 40 <48> 39 42 40 0f 85 7b ff ff ff 48 39 f5 74 17 49 8b 47 30 48 8> Jun 29 14:19:48 pushan kernel: RSP: 0018:ffffcf83a06cf540 EFLAGS: 00010286 Jun 29 14:19:48 pushan kernel: RAX: ffff8a62909f4000 RBX: ffffcf83a06cf558 RCX: ffff8a635f0050c0 Jun 29 14:19:48 pushan kernel: RDX: 0000000000000000 RSI: ffff8a62d6520c00 RDI: ffffcf83a06cf558 Jun 29 14:19:48 pushan kernel: RBP: ffff8a6304899400 R08: 0000000000000000 R09: 0000820000000000 Jun 29 14:19:48 pushan kernel: R10: ffff8a62909f41c0 R11: 00007e0000000000 R12: 0000000000000000 Jun 29 14:19:48 pushan kernel: R13: 0000000000000000 R14: ffff8a65acbc5d20 R15: ffff8a6280f94500 Jun 29 14:19:48 pushan kernel: FS: 00007f92404ce700(0000) GS:ffff8a6625efc000(0000) knlGS:0000000000000000 Jun 29 14:19:48 pushan kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 29 14:19:48 pushan kernel: CR2: 0000000000000040 CR3: 0000000385f52000 CR4: 00000000000026f0 Jun 29 14:19:48 pushan kernel: Call Trace: Jun 29 14:19:48 pushan kernel: <TASK> Jun 29 14:19:48 pushan kernel: nouveau_bo_move+0x1de/0x8d0 [nouveau] Jun 29 14:19:48 pushan kernel: ? ttm_pool_alloc+0x7d/0xb0 [ttm] Jun 29 14:19:48 pushan kernel: ? ttm_tt_populate+0xa1/0x140 [ttm] Jun 29 14:19:48 pushan kernel: ttm_bo_handle_move_mem+0xd0/0x1a0 [ttm] Jun 29 14:19:48 pushan kernel: ttm_bo_evict+0x115/0x170 [ttm] Jun 29 14:19:48 pushan kernel: ? __ttm_bo_lru_cursor_next+0xff/0x300 [ttm] Jun 29 14:19:48 pushan kernel: ttm_bo_evict_cb+0x77/0xd0 [ttm] Jun 29 14:19:48 pushan kernel: ttm_lru_walk_for_evict+0xad/0x1d0 [ttm] Jun 29 14:19:48 pushan kernel: ttm_bo_alloc_resource+0x186/0x4c0 [ttm] Jun 29 14:19:48 pushan kernel: ttm_bo_validate+0x9e/0x180 [ttm] Jun 29 14:19:48 pushan kernel: ttm_bo_init_reserved+0x16d/0x1f0 [ttm] Jun 29 14:19:48 pushan kernel: nouveau_bo_init+0x95/0x110 [nouveau] Jun 29 14:19:48 pushan kernel: ? __pfx_nouveau_bo_del_ttm+0x10/0x10 [nouveau] Jun 29 14:19:48 pushan kernel: nouveau_gem_new+0x163/0x200 [nouveau] Jun 29 14:19:48 pushan kernel: nouveau_gem_ioctl_new+0x8c/0x170 [nouveau] Jun 29 14:19:48 pushan kernel: ? __pfx_nouveau_gem_ioctl_new+0x10/0x10 [nouveau] Jun 29 14:19:48 pushan kernel: drm_ioctl_kernel+0xae/0x100 [drm] Jun 29 14:19:48 pushan kernel: drm_ioctl+0x2a8/0x550 [drm] Jun 29 14:19:48 pushan kernel: ? __pfx_nouveau_gem_ioctl_new+0x10/0x10 [nouveau] Jun 29 14:19:48 pushan kernel: nouveau_drm_ioctl+0x58/0xc0 [nouveau] Jun 29 14:19:48 pushan kernel: __x64_sys_ioctl+0x97/0xe0 Jun 29 14:19:48 pushan kernel: do_syscall_64+0xcd/0x15f0 Jun 29 14:19:48 pushan kernel: ? __alloc_frozen_pages_noprof+0x17e/0x340 Jun 29 14:19:48 pushan kernel: ? mod_memcg_lruvec_state+0xe7/0x2e0 Jun 29 14:19:48 pushan kernel: ? lruvec_stat_mod_folio+0x85/0xd0 Jun 29 14:19:48 pushan kernel: ? __folio_mod_stat+0x2d/0x90 Jun 29 14:19:48 pushan kernel: ? set_ptes.isra.0+0x36/0x80 Jun 29 14:19:48 pushan kernel: ? do_anonymous_page+0x103/0x900 Jun 29 14:19:48 pushan kernel: ? __pte_offset_map+0x1b/0x100 Jun 29 14:19:48 pushan kernel: ? __handle_mm_fault+0xb12/0xf50 Jun 29 14:19:48 pushan kernel: ? __free_frozen_pages+0x242/0x7c0 Jun 29 14:19:48 pushan kernel: ? count_memcg_events+0xeb/0x220 Jun 29 14:19:48 pushan kernel: ? handle_mm_fault+0x1d6/0x2d0 Jun 29 14:19:48 pushan kernel: ? do_user_addr_fault+0x2b4/0x7b0 Jun 29 14:19:48 pushan kernel: ? irqentry_exit+0x6e/0x570 Jun 29 14:19:48 pushan kernel: ? exc_page_fault+0x82/0x1d0 Jun 29 14:19:48 pushan kernel: ? __irq_exit_rcu+0x3d/0xe0 Jun 29 14:19:48 pushan kernel: entry_SYSCALL_64_after_hwframe+0x76/0x7e Jun 29 14:19:48 pushan kernel: RIP: 0033:0x7f92416d7d3b Jun 29 14:19:48 pushan kernel: Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 0> Jun 29 14:19:48 pushan kernel: RSP: 002b:00007ffc0acf89f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 Jun 29 14:19:48 pushan kernel: RAX: ffffffffffffffda RBX: 0000379c00221320 RCX: 00007f92416d7d3b Jun 29 14:19:48 pushan kernel: RDX: 00007ffc0acf8aa0 RSI: 00000000c0306480 RDI: 0000000000000013 Jun 29 14:19:48 pushan kernel: RBP: 00007ffc0acf8aa0 R08: 00005600f4303bc8 R09: 0000379c03e07dc0 Jun 29 14:19:48 pushan kernel: R10: 0000379c03e07e8c R11: 0000000000000246 R12: 00000000c0306480 Jun 29 14:19:48 pushan kernel: R13: 0000000000000013 R14: 0000379c00088600 R15: 0000000000001000 Jun 29 14:19:48 pushan kernel: </TASK> Jun 29 14:19:48 pushan kernel: Modules linked in: nft_fib_ipv6 nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_fib_ipv4 nft_fib nf_tables wireguard libcurve25519 libchacha20poly1305 libchacha libpoly1305 ip6_udp_tunnel u> Jun 29 14:19:48 pushan kernel: drm_exec i2c_algo_bit drm_display_helper cec rc_core drm_client_lib drm_kms_helper sd_mod hid_generic usbhid uas usb_storage hid ahci libahci ata_generic iTCO_wdt drm libata intel_pmc_bxt ehci_p> Jun 29 14:19:48 pushan kernel: CR2: 0000000000000040 Jun 29 14:19:48 pushan kernel: ---[ end trace 0000000000000000 ]--- Jun 29 14:19:48 pushan kernel: RIP: 0010:nouveau_fence_sync+0x12c/0x1b0 [nouveau] Jun 29 14:19:48 pushan kernel: Code: 74 08 48 3d 20 dd d2 c0 75 aa e8 bf 47 b1 c6 49 8b 76 50 48 85 f6 74 97 48 8b 85 f0 00 00 00 48 8b 96 f0 00 00 00 48 8b 40 40 <48> 39 42 40 0f 85 7b ff ff ff 48 39 f5 74 17 49 8b 47 30 48 8> Jun 29 14:19:48 pushan kernel: RSP: 0018:ffffcf83a06cf540 EFLAGS: 00010286 Jun 29 14:19:48 pushan kernel: RAX: ffff8a62909f4000 RBX: ffffcf83a06cf558 RCX: ffff8a635f0050c0 Jun 29 14:19:48 pushan kernel: RDX: 0000000000000000 RSI: ffff8a62d6520c00 RDI: ffffcf83a06cf558 Jun 29 14:19:48 pushan kernel: RBP: ffff8a6304899400 R08: 0000000000000000 R09: 0000820000000000 Jun 29 14:19:48 pushan kernel: R10: ffff8a62909f41c0 R11: 00007e0000000000 R12: 0000000000000000 Jun 29 14:19:48 pushan kernel: R13: 0000000000000000 R14: ffff8a65acbc5d20 R15: ffff8a6280f94500 Jun 29 14:19:48 pushan kernel: FS: 00007f92404ce700(0000) GS:ffff8a6625efc000(0000) knlGS:0000000000000000 Jun 29 14:19:48 pushan kernel: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jun 29 14:19:48 pushan kernel: CR2: 0000000000000040 CR3: 0000000385f52000 CR4: 00000000000026f0 Jun 29 14:19:52 pushan kernel: audit: type=1400 audit(1782706792.259:350272): apparmor="DENIED" operation="ptrace" class="ptrace" profile="/usr/bin/papers//sanitized_helper" pid=368943 comm="FSBroker855023" requested_mask="rea> Jun 29 14:20:05 pushan kernel: BUG: unable to handle page fault for address: ffffcf83a06cf7a8 Jun 29 14:20:05 pushan kernel: #PF: supervisor read access in kernel mode Jun 29 14:20:05 pushan kernel: #PF: error_code(0x0000) - not-present page Jun 29 14:20:05 pushan kernel: PGD 100000067 P4D 100000067 PUD 100259067 PMD 3d15b1067 PTE 0 Thanks, Anand On Wed, 6 May 2026 at 06:27, Salvatore Bonaccorso <[email protected]> wrote: > Control: tags -1 + moreinfo > > Hi > > On Wed, May 06, 2026 at 06:19:23AM +1000, Anand Kumria wrote: > > Package: src:linux > > Version: 6.19.14-1 > > Severity: normal > > > > Dear Maintainer, > > > > While in an ordinary graphical session, it suddenly became unresponsive. > > > > After rebooting, the following messages were in the kernel log. > > > > > > -- Package-specific info: > > ** Kernel log: boot messages should be attached > > May 05 08:00:50 pushan kernel: INFO: task kworker/u32:3:305137 blocked > for > > more than 120 seconds. > > May 05 08:00:50 pushan kernel: Not tainted 6.19.14+deb14-amd64 #1 > > Debian 6.19.14-1 > > May 05 08:00:50 pushan kernel: "echo 0 > > > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > > May 05 08:00:50 pushan kernel: task:kworker/u32:3 state:D stack:0 > > pid:305137 tgid:305137 ppid:2 task_flags:0x4208060 flags:0x00080000 > > May 05 08:00:50 pushan kernel: Workqueue: events_unbound > > nv50_disp_atomic_commit_work [nouveau] > > May 05 08:00:50 pushan kernel: Call Trace: > > May 05 08:00:50 pushan kernel: <TASK> > > May 05 08:00:50 pushan kernel: __schedule+0x48a/0xfc0 > > May 05 08:00:50 pushan kernel: schedule+0x27/0xd0 > > May 05 08:00:50 pushan kernel: schedule_timeout+0xbd/0x100 > > May 05 08:00:50 pushan kernel: dma_fence_default_wait+0x1a8/0x280 > > May 05 08:00:50 pushan kernel: ? > __pfx_dma_fence_default_wait_cb+0x10/0x10 > > May 05 08:00:50 pushan kernel: dma_fence_wait_timeout+0xa2/0x150 > > May 05 08:00:50 pushan kernel: > > drm_atomic_helper_wait_for_fences+0x133/0x1f0 [drm_kms_helper] > > May 05 08:00:50 pushan kernel: nv50_disp_atomic_commit_tail+0x88/0x790 > > [nouveau] > > May 05 08:00:50 pushan kernel: process_one_work+0x192/0x350 > > May 05 08:00:50 pushan kernel: worker_thread+0x196/0x300 > > May 05 08:00:50 pushan kernel: ? __pfx_worker_thread+0x10/0x10 > > May 05 08:00:50 pushan kernel: kthread+0xfc/0x240 > > May 05 08:00:50 pushan kernel: ? __pfx_kthread+0x10/0x10 > > May 05 08:00:50 pushan kernel: ? __pfx_kthread+0x10/0x10 > > May 05 08:00:50 pushan kernel: ret_from_fork+0x24d/0x290 > > May 05 08:00:50 pushan kernel: ? __pfx_kthread+0x10/0x10 > > May 05 08:00:50 pushan kernel: ret_from_fork_asm+0x1a/0x30 > > May 05 08:00:50 pushan kernel: </TASK> > > May 05 08:00:50 pushan kernel: INFO: task kworker/u33:0:306101 blocked > for > > more than 120 seconds. > > May 05 08:00:50 pushan kernel: Not tainted 6.19.14+deb14-amd64 #1 > > Debian 6.19.14-1 > > May 05 08:00:50 pushan kernel: "echo 0 > > > /proc/sys/kernel/hung_task_timeout_secs" disables this message. > > May 05 08:00:50 pushan kernel: task:kworker/u33:0 state:D stack:0 > > pid:306101 tgid:306101 ppid:2 task_flags:0x4208060 flags:0x00080000 > > May 05 08:00:50 pushan kernel: Workqueue: ttm ttm_bo_delayed_delete [ttm] > > May 05 08:00:50 pushan kernel: Call Trace: > > May 05 08:00:50 pushan kernel: <TASK> > > May 05 08:00:50 pushan kernel: __schedule+0x48a/0xfc0 > > May 05 08:00:50 pushan kernel: schedule+0x27/0xd0 > > May 05 08:00:50 pushan kernel: schedule_timeout+0xbd/0x100 > > May 05 08:00:50 pushan kernel: dma_fence_default_wait+0x1a8/0x280 > > May 05 08:00:50 pushan kernel: ? > __pfx_dma_fence_default_wait_cb+0x10/0x10 > > May 05 08:00:50 pushan kernel: dma_fence_wait_timeout+0xa2/0x150 > > May 05 08:00:50 pushan kernel: dma_resv_wait_timeout+0xce/0x1d0 > > May 05 08:00:50 pushan kernel: ttm_bo_delayed_delete+0x32/0x90 [ttm] > > May 05 08:00:50 pushan kernel: process_one_work+0x192/0x350 > > May 05 08:00:50 pushan kernel: worker_thread+0x196/0x300 > > May 05 08:00:50 pushan kernel: ? __pfx_worker_thread+0x10/0x10 > > May 05 08:00:50 pushan kernel: kthread+0xfc/0x240 > > May 05 08:00:50 pushan kernel: ? __pfx_kthread+0x10/0x10 > > May 05 08:00:50 pushan kernel: ? __pfx_kthread+0x10/0x10 > > May 05 08:00:50 pushan kernel: ret_from_fork+0x24d/0x290 > > May 05 08:00:50 pushan kernel: ? __pfx_kthread+0x10/0x10 > > May 05 08:00:50 pushan kernel: ret_from_fork_asm+0x1a/0x30 > > May 05 08:00:50 pushan kernel: </TASK> > > As 6.19.y is end of life now, can you please update to the 7.0.3-1 > kernel in unstable and report back if you can reproduce the issue? > > Regards, > Salvatore >
