On Wed, Mar 5, 2025 at 11:11 AM Malte Schröder <malte.schroe...@tnxip.de> wrote: > > Hi, > > I hope this is the right place to report this. Since 6.14-rc1 ff. resume > from hibernate does not work anymore. Now I finally managed to get dmesg > from when this happens (Console is frozen, but managed to login via > network). If I read that trace correctly there seems to be some > interaction with apparmor. I retried with apparmor disabled and the > issue didn't trigger.
Also CC'ing the AppArmor-specific mailing list in this reply. > > I am happy to provide more data if required. Could you try to reproduce this NULL pointer dereference with a clean kernel with debug info (that I'd be able to access the source code of) and send a symbolized stacktrace processed with scripts/decode_stacktrace.sh? > > Regards > > /Malte > > ... > [ 1981.117448] OOM killer enabled. > [ 1981.117450] Restarting tasks ... done. > [ 1981.119115] efivarfs: resyncing variable state > [ 1981.119125] BUG: kernel NULL pointer dereference, address: > 0000000000000018 > [ 1981.119127] #PF: supervisor read access in kernel mode > [ 1981.119128] #PF: error_code(0x0000) - not-present page > [ 1981.119130] PGD 0 P4D 0 > [ 1981.119132] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI > [ 1981.119133] CPU: 0 UID: 0 PID: 20445 Comm: systemd-sleep Not tainted > 6.14.0-rc5-highlander-00106-gef00144cf269-dirty #1 > [ 1981.119136] Hardware name: To Be Filled By O.E.M. X570 Extreme4/X570 > Extreme4, BIOS P5.60 01/18/2024 > [ 1981.119137] RIP: 0010:apparmor_file_open+0x9b/0x1f0 > [ 1981.119140] Code: c5 00 08 00 00 0f 85 4b 01 00 00 4c 89 e9 31 c0 f6 > c1 02 0f 85 fd 00 00 00 48 8b 87 88 00 00 00 4c 8d b7 88 00 00 00 48 89 > fd <48> 8b 40 18 48 8b 4f 70 0f b7 11 48 89 c7 66 89 54 24 04 48 8b 51 > [ 1981.119142] RSP: 0018:ffff9878ef633c50 EFLAGS: 00010246 > [ 1981.119144] RAX: 0000000000000000 RBX: ffff8cae8ef20500 RCX: > 0000000000000300 > [ 1981.119145] RDX: ffff8cbcb7227538 RSI: 0000000000095fb9 RDI: > ffff8cb05a13d680 > [ 1981.119146] RBP: ffff8cb05a13d680 R08: ffff8cbcb7227520 R09: > 0000000000000002 > [ 1981.119147] R10: ffff8cadc0a30000 R11: 0000000000000001 R12: > 0000000000000010 > [ 1981.119147] R13: 0000000000000300 R14: ffff8cb05a13d708 R15: > ffff8cb06b1a4c98 > [ 1981.119148] FS: 00007f98aa8cd880(0000) GS:ffff8cbcb7200000(0000) > knlGS:0000000000000000 > [ 1981.119150] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 1981.119151] CR2: 0000000000000018 CR3: 00000004e8634000 CR4: > 0000000000f50ef0 > [ 1981.119152] PKRU: 55555554 > [ 1981.119153] Call Trace: > [ 1981.119154] <TASK> > [ 1981.119156] ? __die_body+0x65/0xb0 > [ 1981.119159] ? page_fault_oops+0x32b/0x3a0 > [ 1981.119161] ? refill_obj_stock.llvm.8234991812681303024+0x5f/0x470 > [ 1981.119163] ? local_clock_noinstr+0xc/0xb0 > [ 1981.119166] ? do_user_addr_fault+0x61d/0x690 > [ 1981.119168] ? local_clock_noinstr+0xc/0xb0 > [ 1981.119170] ? exc_page_fault+0x5d/0xb0 > [ 1981.119172] ? asm_exc_page_fault+0x26/0x30 > [ 1981.119174] ? apparmor_file_open+0x9b/0x1f0 > [ 1981.119176] security_file_open+0x4a/0x80 > [ 1981.119178] do_dentry_open+0xe1/0x500 > [ 1981.119180] kernel_file_open+0x48/0x110 > [ 1981.119182] efivarfs_pm_notify+0xb9/0x150 > [ 1981.119184] ? __cfi_efivarfs_actor+0x10/0x10 > [ 1981.119185] ? fw_pm_notify+0x7b/0x120 > [ 1981.119188] notifier_call_chain.llvm.16935409508942381779+0x8e/0x120 > [ 1981.119190] blocking_notifier_call_chain+0x40/0x60 > [ 1981.119192] hibernate+0x246/0x2a0 > [ 1981.119194] state_store+0xe6/0x110 > [ 1981.119196] kernfs_fop_write_iter.llvm.7859645527451689651+0x134/0x1c0 > [ 1981.119198] vfs_write+0x2fb/0x430 > [ 1981.119201] ksys_write+0x7e/0xf0 > [ 1981.119203] do_syscall_64+0x58/0xf0 > [ 1981.119205] ? irqentry_exit_to_user_mode+0x82/0xa0 > [ 1981.119207] entry_SYSCALL_64_after_hwframe+0x50/0x58 > [ 1981.119208] RIP: 0033:0x7f98aa271e56 > [ 1981.119210] Code: 89 df e8 7d bd 00 00 8b 93 08 03 00 00 59 5e 48 83 > f8 fc 75 15 83 e2 39 83 fa 08 75 0d e8 32 ff ff ff 66 90 48 8b 45 10 0f > 05 <48> 8b 5d f8 c9 c3 0f 1f 40 00 f3 0f 1e fa 55 48 89 e5 48 83 ec 08 > [ 1981.119211] RSP: 002b:00007fffa86c0160 EFLAGS: 00000202 ORIG_RAX: > 0000000000000001 > [ 1981.119213] RAX: ffffffffffffffda RBX: 00007f98aa8cd880 RCX: > 00007f98aa271e56 > [ 1981.119214] RDX: 0000000000000005 RSI: 0000556a8e281e20 RDI: > 0000000000000007 > [ 1981.119215] RBP: 00007fffa86c0170 R08: 0000000000000000 R09: > 0000000000000000 > [ 1981.119215] R10: 0000000000000000 R11: 0000000000000202 R12: > 0000000000000005 > [ 1981.119216] R13: 0000556a8e281e20 R14: 0000556a8e280340 R15: > 00007f98aa3c6ea0 > [ 1981.119218] </TASK> > [ 1981.119219] Modules linked in: rfcomm snd_seq_dummy snd_hrtimer > snd_seq bnep nct6775 hwmon_vid nct6775_core cfg80211 btusb btrtl btmtk > btbcm btintel snd_usb_audio snd_ump snd_usbmidi_lib snd_rawmidi > snd_seq_device bluetooth rfkill snd_hda_codec_realtek > snd_hda_scodec_component snd_hda_codec_generic snd_hda_codec_hdmi > snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_ctxfi snd_hwdep > wmi_bmof kvm_amd kvm snd_pcsp snd_hda_core nfnetlink ip_tables x_tables > hid_roccat_kone hid_roccat hid_logitech_hidpp hid_logitech_dj amdgpu > drm_panel_backlight_quirks cec mfd_core drm_buddy drm_suballoc_helper > video drm_exec drm_display_helper gpu_sched amdxcp drm_client_lib > drm_ttm_helper drm_kms_helper ttm wmi uhid snd_aloop snd_pcm snd_timer > snd soundcore videodev mc > [ 1981.119243] CR2: 0000000000000018 > [ 1981.119245] ---[ end trace 0000000000000000 ]--- > [ 1981.120124] mlx4_en: 0000:04:00.0: Port 1: Using 32 TX rings > [ 1981.120127] mlx4_en: 0000:04:00.0: Port 1: Using 16 RX rings > [ 1981.127944] mlx4_en: 0000:04:00.0: Port 1: Initializing port > [ 1981.128388] mlx4_en 0000:04:00.0: registered PHC clock > [ 1981.266201] RIP: 0010:apparmor_file_open+0x9b/0x1f0 > [ 1981.266207] Code: c5 00 08 00 00 0f 85 4b 01 00 00 4c 89 e9 31 c0 f6 > c1 02 0f 85 fd 00 00 00 48 8b 87 88 00 00 00 4c 8d b7 88 00 00 00 48 89 > fd <48> 8b 40 18 48 8b 4f 70 0f b7 11 48 89 c7 66 89 54 24 04 48 8b 51 > [ 1981.266208] RSP: 0018:ffff9878ef633c50 EFLAGS: 00010246 > [ 1981.266210] RAX: 0000000000000000 RBX: ffff8cae8ef20500 RCX: > 0000000000000300 > [ 1981.266211] RDX: ffff8cbcb7227538 RSI: 0000000000095fb9 RDI: > ffff8cb05a13d680 > [ 1981.266212] RBP: ffff8cb05a13d680 R08: ffff8cbcb7227520 R09: > 0000000000000002 > [ 1981.266213] R10: ffff8cadc0a30000 R11: 0000000000000001 R12: > 0000000000000010 > [ 1981.266214] R13: 0000000000000300 R14: ffff8cb05a13d708 R15: > ffff8cb06b1a4c98 > [ 1981.266215] FS: 00007f98aa8cd880(0000) GS:ffff8cbcb7200000(0000) > knlGS:0000000000000000 > [ 1981.266216] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 1981.266217] CR2: 0000000000000018 CR3: 00000004e8634000 CR4: > 0000000000f50ef0 > [ 1981.266218] PKRU: 55555554 > [ 1981.266219] note: systemd-sleep[20445] exited with irqs disabled > ... > > Ryan
