Bug#1022068: Reproduced
found 1022068 6.1.1-1~exp2
thanks
Hello,
Reproduced (without much surprise) with 6.1.1-1~exp2.
I built linux from git (84e57d292203a45c96dbcb2e6be9dd80961d981a), to
see if I can reproduce the bug. Unfortunately, this kernel doesn't
boot (and I don't have much time to investigate).
[ 2.739231] BUG: kernel NULL pointer dereference, address: 0000000000000020
[ 2.739233] #PF: supervisor read access in kernel mode
[ 2.739234] #PF: error_code(0x0000) - not-present page
[ 2.739236] PGD 0 P4D 0
[ 2.739238] Oops: 0000 [#1] PREEMPT_RT SMP PTI
[ 2.739240] CPU: 2 PID: 215 Comm: systemd-udevd Not tainted
6.1.0-0-rt-amd64 #1 Debian 6.1.1-1~exp2
[ 2.739242] Hardware name: Dell Inc. XPS L521X/029M77, BIOS A13 12/07/2012
[ 2.739243] RIP: 0010:nvif_object_mthd+0xba/0x200 [nouveau]
[ 2.739319] Code: 94 de 41 8d 56 20 49 8b 44 24 08 83 fa 17 0f 86
35 01 00 00 4c 39 e0 0f 84 ea 00 00 00 4c 89 63 10 31 c9 48 89 de c6
43 06 ff <48> 8b 78 20 48 8b 40 38 48 8b 40 28 e8 55 24 d3 de 48 8b 3c
24 4c
[ 2.739321] RSP: 0018:ffffa98280c37608 EFLAGS: 00010246
[ 2.739322] RAX: 0000000000000000 RBX: ffffa98280c37610 RCX: 0000000000000000
[ 2.739323] RDX: 0000000000000028 RSI: ffffa98280c37610 RDI: ffffa98280c37638
[ 2.739324] RBP: 0000000000000000 R08: ffffa98280c37860 R09: 00000000ffffff8e
[ 2.739325] R10: 0000000000000000 R11: ffff8e1cdf5c6000 R12: ffff8e19c40a7508
[ 2.739326] R13: ffffa98280c37610 R14: 0000000000000008 R15: ffffa98280c37630
[ 2.739327] FS: 00007facb03abd00(0000) GS:ffff8e1ccf280000(0000)
knlGS:0000000000000000
[ 2.739329] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.739330] CR2: 0000000000000020 CR3: 000000010194c003 CR4: 00000000001706e0
[ 2.739331] Call Trace:
[ 2.739334] <TASK>
[ 2.739337] nvif_conn_hpd_status+0x35/0xe0 [nouveau]
[ 2.739401] nouveau_dp_detect+0x2f7/0x470 [nouveau]
[ 2.739489] ? migrate_enable+0xde/0x160
[ 2.739493] nouveau_connector_detect+0x9b/0x550 [nouveau]
[ 2.739584] drm_helper_probe_detect+0x84/0xb0 [drm_kms_helper]
[ 2.739601] drm_helper_probe_single_connector_modes+0x31b/0x550
[drm_kms_helper]
[ 2.739615] ? __kmem_cache_alloc_node+0x12c/0x210
[ 2.739619] drm_client_modeset_probe+0x243/0x1660 [drm]
[ 2.739657] ? nouveau_cli_init+0x400/0x4a0 [nouveau]
[ 2.739745] ? recalibrate_cpu_khz+0x10/0x10
[ 2.739747] ? __pm_runtime_suspend+0x61/0x70
[ 2.739751] __drm_fb_helper_initial_config_and_unlock+0x44/0x530
[drm_kms_helper]
[ 2.739766] ? drm_client_init+0x133/0x160 [drm]
[ 2.739796] nouveau_fbcon_init+0x159/0x1d0 [nouveau]
[ 2.739882] nouveau_drm_device_init+0x1f8/0x7b0 [nouveau]
[ 2.739968] ? pci_update_current_state+0x6e/0xa0
[ 2.739972] nouveau_drm_probe+0x128/0x1f0 [nouveau]
[ 2.740057] ? rt_spin_unlock+0x13/0x40
[ 2.740061] local_pci_probe+0x41/0x80
[ 2.740064] pci_device_probe+0xc3/0x230
[ 2.740066] really_probe+0xde/0x380
[ 2.740070] ? pm_runtime_barrier+0x50/0x90
[ 2.740072] __driver_probe_device+0x78/0x170
[ 2.740075] driver_probe_device+0x1f/0x90
[ 2.740077] __driver_attach+0xd1/0x1d0
[ 2.740080] ? __device_attach_driver+0x110/0x110
[ 2.740083] bus_for_each_dev+0x87/0xd0
[ 2.740085] bus_add_driver+0x1b1/0x200
[ 2.740088] driver_register+0x89/0xe0
[ 2.740090] ? 0xffffffffc0825000
[ 2.740092] do_one_initcall+0x59/0x280
[ 2.740096] do_init_module+0x4a/0x200
[ 2.740099] __do_sys_finit_module+0xac/0x120
[ 2.740103] do_syscall_64+0x5b/0xc0
[ 2.740107] ? fpregs_assert_state_consistent+0x22/0x50
[ 2.740109] ? exit_to_user_mode_prepare+0x3c/0x1c0
[ 2.740111] ? syscall_exit_to_user_mode+0x17/0x40
[ 2.740114] ? do_syscall_64+0x67/0xc0
[ 2.740115] ? do_syscall_64+0x67/0xc0
[ 2.740117] ? syscall_exit_to_user_mode+0x17/0x40
[ 2.740119] ? do_syscall_64+0x67/0xc0
[ 2.740120] ? syscall_exit_to_user_mode+0x17/0x40
[ 2.740123] ? do_syscall_64+0x67/0xc0
[ 2.740124] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 2.740126] RIP: 0033:0x7facb0ab65a9
[ 2.740128] Code: 08 89 e8 5b 5d c3 66 2e 0f 1f 84 00 00 00 00 00
90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24
08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 27 08 0d 00 f7 d8 64 89
01 48
[ 2.740130] RSP: 002b:00007fffd742f858 EFLAGS: 00000246 ORIG_RAX:
0000000000000139
[ 2.740131] RAX: ffffffffffffffda RBX: 000055f070a5e8f0 RCX: 00007facb0ab65a9
[ 2.740132] RDX: 0000000000000000 RSI: 00007facb0c49efd RDI: 0000000000000013
[ 2.740133] RBP: 00007facb0c49efd R08: 0000000000000000 R09: 000055f070a32240
[ 2.740134] R10: 0000000000000013 R11: 0000000000000246 R12: 0000000000020000
[ 2.740135] R13: 0000000000000000 R14: 000055f070a5c610 R15: 000055f06f9efe50
[ 2.740137] </TASK>
[ 2.740138] Modules linked in: hid i915 nouveau(+) ahci libahci
drm_buddy mxm_wmi i2c_algo_bit drm_display_helper crct10dif_pclmul
crct10dif_common crc32_pclmul crc32c_intel libata cec sdhci_pci r8169
rc_core cqhci xhci_pci ghash_clmulni_intel drm_ttm_helper sha512_ssse3
sha512_generic ttm ehci_pci realtek scsi_mod xhci_hcd drm_kms_helper
aesni_intel mdio_devres ehci_hcd i2c_i801 sdhci rtsx_pci_sdmmc drm
crypto_simd usbcore cryptd mmc_core psmouse libphy rtsx_pci
scsi_common lpc_ich i2c_smbus usb_common video battery wmi button
[ 2.740163] CR2: 0000000000000020
[ 2.740271] ---[ end trace 0000000000000000 ]---
[ 2.740272] RIP: 0010:nvif_object_mthd+0xba/0x200 [nouveau]
[ 2.740335] Code: 94 de 41 8d 56 20 49 8b 44 24 08 83 fa 17 0f 86
35 01 00 00 4c 39 e0 0f 84 ea 00 00 00 4c 89 63 10 31 c9 48 89 de c6
43 06 ff <48> 8b 78 20 48 8b 40 38 48 8b 40 28 e8 55 24 d3 de 48 8b 3c
24 4c
[ 2.740337] RSP: 0018:ffffa98280c37608 EFLAGS: 00010246
[ 2.740338] RAX: 0000000000000000 RBX: ffffa98280c37610 RCX: 0000000000000000
[ 2.740339] RDX: 0000000000000028 RSI: ffffa98280c37610 RDI: ffffa98280c37638
[ 2.740340] RBP: 0000000000000000 R08: ffffa98280c37860 R09: 00000000ffffff8e
[ 2.740341] R10: 0000000000000000 R11: ffff8e1cdf5c6000 R12: ffff8e19c40a7508
[ 2.740342] R13: ffffa98280c37610 R14: 0000000000000008 R15: ffffa98280c37630
[ 2.740343] FS: 00007facb03abd00(0000) GS:ffff8e1ccf280000(0000)
knlGS:0000000000000000
[ 2.740344] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2.740345] CR2: 0000000000000020 CR3: 000000010194c003 CR4: 00000000001706e0
Regards
--
Mathieu Parent
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