https://bugzilla.kernel.org/show_bug.cgi?id=214621 --- Comment #6 from Erhard F. (erhard_f@xxxxxxxxxxx) --- (In reply to Lang Yu from comment #5) > Created attachment 299383 [details] > fix a potential dma-buf release warning > > Please have a try with attached patch. Thanks! Thanks! Applied the patch on top of v5.15 but still get: [...] ------------[ cut here ]------------ WARNING: CPU: 2 PID: 519 at drivers/gpu/drm/ttm/ttm_bo.c:409 ttm_bo_release+0xb64/0xe40 [ttm] Modules linked in: rfkill dm_crypt nhpoly1305_sse2 nhpoly1305 chacha_generic chacha_x86_64 libchacha adiantum libpoly1305 algif_skcipher joydev input_leds led_class hid_generic usbhid dm_mod hid ohci_pci raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx evdev f2fs crc32_generic lz4hc_compress lz4_compress lz4_decompress crc32_pclmul amdgpu md_mod aesni_intel libaes crypto_simd cryptd ext4 crc16 mbcache fam15h_power snd_hda_codec_hdmi jbd2 k10temp ehci_pci ohci_hcd snd_hda_intel ehci_hcd snd_intel_dspcfg xhci_pci drm_ttm_helper i2c_piix4 snd_hda_codec ttm mfd_core snd_hwdep snd_hda_core gpu_sched xhci_hcd i2c_algo_bit snd_pcm drm_kms_helper usbcore snd_timer syscopyarea sysfillrect snd sysimgblt usb_common fb_sys_fops soundcore acpi_cpufreq video processor button zram zsmalloc nfsd nct6775 hwmon_vid hwmon auth_rpcgss drm lockd grace fuse drm_panel_orientation_quirks backlight configfs sunrpc efivarfs CPU: 2 PID: 519 Comm: X Not tainted 5.15.0-bdver3+ #3 Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./A88M-G/3.1, BIOS P1.40C 11/21/2016 RIP: 0010:ttm_bo_release+0xb64/0xe40 [ttm] Code: c1 ea 03 80 3c 02 00 0f 85 77 01 00 00 48 8b bb f0 fe ff ff b9 28 23 00 00 31 d2 be 01 00 00 00 e8 81 c9 54 da e9 d3 fe ff ff <0f> 0b e9 1c f5 ff ff 4c 89 e7 e8 4d 5a 54 da e9 26 fc ff ff be 03 RSP: 0018:ffffc900018afb18 EFLAGS: 00010202 RAX: 0000000000000007 RBX: ffff88813d2a7298 RCX: 000000000000001c RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88813d2a7298 RBP: ffff88813d2a7000 R08: ffffffffc0b63689 R09: ffff88813d2a729b R10: ffffed1027a54e53 R11: 0000000000000001 R12: dffffc0000000000 R13: ffff8881748d03a8 R14: ffff8881748d03f0 R15: ffff88810b138b40 FS: 00007fa8bfe7adc0(0000) GS:ffff8883d1700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562b379a2098 CR3: 0000000142970000 CR4: 00000000000506e0 Call Trace: ? fsnotify_grab_connector+0xcc/0x190 amdgpu_bo_unref+0x2c/0x60 [amdgpu] amdgpu_gem_object_free+0xc0/0x100 [amdgpu] ? amdgpu_gem_object_mmap+0xe0/0xe0 [amdgpu] ? call_rcu+0x37f/0x730 ? trace_hardirqs_on+0x1c/0x110 drm_gem_dmabuf_release+0x82/0xb0 [drm] dma_buf_release+0x127/0x230 __dentry_kill+0x376/0x550 ? dma_buf_file_release+0x177/0x200 __fput+0x2c0/0x8c0 task_work_run+0xc5/0x150 do_exit+0x799/0x20c0 ? mm_update_next_owner+0x6d0/0x6d0 do_group_exit+0xe7/0x290 __x64_sys_exit_group+0x35/0x40 do_syscall_64+0x66/0x90 ? do_syscall_64+0xe/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fa8bf6fc2f9 Code: Unable to access opcode bytes at RIP 0x7fa8bf6fc2cf. RSP: 002b:00007ffc95722778 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fa8bf7e4920 RCX: 00007fa8bf6fc2f9 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 00007fa8bf7e4920 R08: fffffffffffffd40 R09: 000000000098b190 R10: 00007fa8bef086b8 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 000000000000066a R15: 0000000000000000 irq event stamp: 887428545 hardirqs last enabled at (887428551): [<ffffffff9a1f801c>] vprintk_emit+0x2dc/0x310 hardirqs last disabled at (887428556): [<ffffffff9a1f7fcb>] vprintk_emit+0x28b/0x310 softirqs last enabled at (887427644): [<ffffffff9a0d0165>] __irq_exit_rcu+0xe5/0x120 softirqs last disabled at (887427625): [<ffffffff9a0d0165>] __irq_exit_rcu+0xe5/0x120 ---[ end trace 1b4ae7cf543ff5f4 ]--- [...] It does not trigger on every reboot though, the machine needs to have been running for a few hrs. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.
