Hello.
I was reproducing a video file stored on a UFS2 fs configured in READ ONLY mode with a lot of media players,but no one worked great and suddenly it stopped going. And yes,everytime I do the same thing,everytime I get the same errors. I’ve checked what could have happened and between the dmesg messages I saw this :
[ 402.975062] ================================================================================
[ 402.975065] UBSAN: shift-out-of-bounds in /build/linux-Xjc4na/linux-6.2.0/fs/ufs/super.c:1246:19
[ 402.975067] shift exponent 36 is too large for 32-bit type 'int'
[ 402.975069] CPU: 0 PID: 6023 Comm: mount Tainted: P OE 6.2.0-24-generic #24-Ubuntu
[ 402.975071] Hardware name: Gigabyte Technology Co., Ltd. Z390 AORUS PRO/Z390 AORUS PRO-CF, BIOS F12g GA9 06/08/2020
[ 402.975072] Call Trace:
[ 402.975073] <TASK>
[ 402.975075] dump_stack_lvl+0x48/0x70
[ 402.975079] dump_stack+0x10/0x20
[ 402.975080] __ubsan_handle_shift_out_of_bounds+0x1ac/0x360
[ 402.975084] ? __pfx_wake_bit_function+0x10/0x10
[ 402.975086] ufs_fill_super.cold+0x1e9/0x20a [ufs]
[ 402.975092] ? snprintf+0x51/0x80
[ 402.975094] mount_bdev+0x19b/0x1d0
[ 402.975096] ? __pfx_ufs_fill_super+0x10/0x10 [ufs]
[ 402.975102] ufs_mount+0x15/0x30 [ufs]
[ 402.975107] legacy_get_tree+0x28/0x60
[ 402.975109] vfs_get_tree+0x27/0xe0
[ 402.975111] do_new_mount+0x18b/0x320
[ 402.975114] path_mount+0x1e4/0x820
[ 402.975116] ? putname+0x5d/0x80
[ 402.975118] __x64_sys_mount+0x127/0x160
[ 402.975121] do_syscall_64+0x58/0x90
[ 402.975123] ? __put_cred+0x43/0x80
[ 402.975125] ? revert_creds+0x3d/0x50
[ 402.975127] ? do_faccessat+0x139/0x280
[ 402.975129] ? exit_to_user_mode_prepare+0x30/0xb0
[ 402.975131] ? syscall_exit_to_user_mode+0x29/0x50
[ 402.975133] ? do_syscall_64+0x67/0x90
[ 402.975135] ? do_syscall_64+0x67/0x90
[ 402.975136] ? do_syscall_64+0x67/0x90
[ 402.975138] entry_SYSCALL_64_after_hwframe+0x72/0xdc
[ 402.975140] RIP: 0033:0x7ff0bc51ee7e
[ 402.975142] Code: 48 8b 0d 9d 6f 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 6a 6f 0d 00 f7 d8 64 89 01 48
[ 402.975143] RSP: 002b:00007ffcc54a0d78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 402.975145] RAX: ffffffffffffffda RBX: 0000561d41c2eac0 RCX: 00007ff0bc51ee7e
[ 402.975146] RDX: 0000561d41c2ed80 RSI: 0000561d41c2edc0 RDI: 0000561d41c2eda0
[ 402.975147] RBP: 0000000000000000 R08: 0000561d41c2ecf0 R09: 00007ffcc549fc71
[ 402.975148] R10: 0000000000000001 R11: 0000000000000246 R12: 0000561d41c2eda0
[ 402.975149] R13: 0000561d41c2ed80 R14: 00000000ffffffff R15: 00007ff0bc80b076
[ 402.975150] </TASK>
[ 402.975151] ================================================================================
[ 6552.848161] [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000100] Failed to grab modeset ownership
[ 6552.870342] [drm:nv_drm_master_set [nvidia_drm]] *ERROR* [nvidia-drm] [GPU ID 0x00000200] Failed to grab modeset ownership
[ 6553.275920] totem[12309]: segfault at 1 ip 00007f3069d73b1d sp 00007ffea210d788 error 4 in libc.so.6[7f3069c22000+178000] likely on CPU 15 (core 7, socket 0)
[ 6553.275929] Code: 00 00 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 89 f8 48 89 fa c5 f9 ef c0 25 ff 0f 00 00 3d e0 0f 00 00 0f 87 33 01 00 00 <c5> fd 74 0f c5 fd d7 c1 85 c0 74 57 f3 0f bc c0 c5 f8 77 c3 66 66
whats happening ? my nvidia gpus are working correctly :
# nvidia-smi
Fri Jun 30 01:59:33 2023
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 525.116.04 Driver Version: 525.116.04 CUDA Version: 12.0 |
|-------------------------------+----------------------+----------------------+
| GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|===============================+======================+======================|
| 0 NVIDIA GeForce ... Off | 00000000:01:00.0 On | N/A |
| 58% 42C P0 31W / 120W | 405MiB / 3072MiB | 1% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
| 1 NVIDIA GeForce ... Off | 00000000:02:00.0 Off | N/A |
| 30% 38C P8 20W / 250W | 6MiB / 11264MiB | 0% Default |
| | | N/A |
+-------------------------------+----------------------+----------------------+
+-----------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=============================================================================|
| 0 N/A N/A 3592 G /usr/lib/xorg/Xorg 185MiB |
| 0 N/A N/A 3678 G xfwm4 2MiB |
| 0 N/A N/A 3711 G /usr/lib/firefox/firefox 213MiB |
| 1 N/A N/A 3592 G /usr/lib/xorg/Xorg 4MiB |
+-----------------------------------------------------------------------------+
I cannot reproduce any video file,no media player works,no audio works anymore,the system became not stable anymore and I should reboot.
I’m running ubuntu 23.04 ; I have 2 graphics card on my PC :
01:00.0 VGA compatible controller: NVIDIA Corporation GP106 [GeForce GTX 1060 3GB] (rev a1)
01:00.1 Audio device: NVIDIA Corporation GP106 High Definition Audio Controller (rev a1)
02:00.0 VGA compatible controller: NVIDIA Corporation TU102 [GeForce RTX 2080 Ti] (rev a1)
02:00.1 Audio device: NVIDIA Corporation TU102 High Definition Audio Controller (rev a1)
02:00.2 USB controller: NVIDIA Corporation TU102 USB 3.1 Host Controller (rev a1)
02:00.3 Serial bus controller: NVIDIA Corporation TU102 USB Type-C UCSI Controller (rev a1)