Comment # 9
on bug 111659
from Brad Campbell
Another observation (after another lockup). I have the kernel set to reboot on panic. On reboot the machine displays a grey screen (as it does on a normal boot) but never gets to the bootloader. I have to hard power cycle the machine. I suppose that might imply the card is getting into a hardware state the firmware can't recover from. I have observed this behaviour every time it has auto-rebooted. Still booting with radeon.dpm=0. . [27018.029370] BUG: kernel NULL pointer dereference, address: 00000000000002b8 [27018.029383] #PF: supervisor read access in kernel mode [27018.029386] #PF: error_code(0x0000) - not-present page [27018.029389] PGD 0 P4D 0 [27018.029394] Oops: 0000 [#1] SMP [27018.029399] CPU: 2 PID: 6439 Comm: kworker/2:2 Not tainted 5.4.0-rc7-bkc1+ #5 [27018.029401] Hardware name: Apple Inc. iMac12,2/Mac-942B59F58194171B, BIOS 82.0.0.0.0 09/25/2018 [27018.029437] Workqueue: events radeon_dp_work_func [radeon] [27018.029458] RIP: 0010:radeon_add_legacy_encoder+0x0/0x2d0 [radeon] [27018.029462] Code: 3f a0 e8 f3 a1 d8 ff 4c 89 ef e8 db 42 e3 e0 eb d3 41 c6 45 08 00 e9 43 ff ff ff 48 c7 c7 b0 73 3e a0 e8 d3 a1 d8 ff eb de 90 <48> 8b 87 b8 02 00 00 4c 8d 87 b8 02 00 00 49 39 c0 74 24 3b 70 68 [27018.029466] RSP: 0018:ffffc90004dafe48 EFLAGS: 00010292 [27018.029469] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000004 [27018.029471] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [27018.029473] RBP: ffff888262820000 R08: ffffffffa0115837 R09: 0000000000000006 [27018.029476] R10: 0000000000000006 R11: 000000000000024c R12: ffff8882625c5ba0 [27018.029478] R13: 0000000000000000 R14: ffff888267b22c00 R15: 0000000000000000 [27018.029481] FS: 0000000000000000(0000) GS:ffff888267b00000(0000) knlGS:0000000000000000 [27018.029484] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [27018.029487] CR2: 00000000000002b8 CR3: 0000000001c09004 CR4: 00000000000606a0 [27018.029489] Call Trace: [27018.029509] radeon_get_legacy_connector_info_from_bios+0x399/0xb90 [radeon] [27018.029531] ? radeon_dp_work_func+0x28/0x40 [radeon] [27018.029537] ? process_one_work+0x1b4/0x330 [27018.029540] ? worker_thread+0x44/0x3d0 [27018.029544] ? set_worker_desc+0x90/0x90 [27018.029548] ? kthread+0xec/0x120 [27018.029552] ? kthread_create_worker_on_cpu+0x40/0x40 [27018.029556] ? ret_from_fork+0x1f/0x30 [27018.029558] Modules linked in: cpufreq_userspace cpufreq_powersave cpufreq_conservative nfsv4 nfsd auth_rpcgss nfs_acl nfs lockd grace fscache sunrpc af_packet dm_crypt dm_mod dax coretemp kvm_intel kvm irqbypass applesmc btusb input_polldev btbcm led_class btintel uvcvideo bluetooth videobuf2_vmalloc rfkill videobuf2_memops snd_usb_audio videobuf2_v4l2 videodev snd_usbmidi_lib ecdh_generic ecc joydev videobuf2_common snd_rawmidi evdev snd_hda_codec_cirrus snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_intel_nhlt snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_timer snd soundcore apple_bl button ext4 crc32c_generic crc16 mbcache jbd2 netconsole configfs hid_apple hid_appleir usb_storage hid_generic usbhid hid sg sr_mod cdrom sd_mod aesni_intel glue_helper crypto_simd cryptd radeon ahci libahci i2c_algo_bit xhci_pci backlight xhci_hcd firewire_ohci drm_kms_helper ehci_pci syscopyarea sysfillrect sysimgblt fb_sys_fops uhci_hcd tg3 ttm firewire_core ehci_hcd libphy crc_itu_t drm [27018.029601] usbcore usb_common i2c_core [27018.029610] CR2: 00000000000002b8 [27018.029613] ---[ end trace 7d5e64a9e69d86f6 ]--- [27018.029632] RIP: 0010:radeon_add_legacy_encoder+0x0/0x2d0 [radeon] [27018.029636] Code: 3f a0 e8 f3 a1 d8 ff 4c 89 ef e8 db 42 e3 e0 eb d3 41 c6 45 08 00 e9 43 ff ff ff 48 c7 c7 b0 73 3e a0 e8 d3 a1 d8 ff eb de 90 <48> 8b 87 b8 02 00 00 4c 8d 87 b8 02 00 00 49 39 c0 74 24 3b 70 68 [27018.029639] RSP: 0018:ffffc90004dafe48 EFLAGS: 00010292 [27018.029641] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000004 [27018.029643] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [27018.029646] RBP: ffff888262820000 R08: ffffffffa0115837 R09: 0000000000000006 [27018.029648] R10: 0000000000000006 R11: 000000000000024c R12: ffff8882625c5ba0 [27018.029651] R13: 0000000000000000 R14: ffff888267b22c00 R15: 0000000000000000 [27018.029653] FS: 0000000000000000(0000) GS:ffff888267b00000(0000) knlGS:0000000000000000 [27018.029656] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [27018.029658] CR2: 00000000000002b8 CR3: 0000000001c09004 CR4: 00000000000606a0 [27018.029661] Kernel panic - not syncing: Fatal exception [27018.029705] Kernel Offset: disabled [27018.029709] Rebooting in 10 seconds.. [27028.030118] ACPI MEMORY or I/O RESET_REG.
You are receiving this mail because:
- You are the assignee for the bug.
_______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
