On Thu, Apr 20, 2023 at 3:32 PM Mikhail Gavrilov <mikhail.v.gavrilov@xxxxxxxxx> wrote: > > Important don't give up. > https://youtu.be/25zhHBGIHJ8 [40 min] > https://youtu.be/utnDR26eYBY [50 min] > https://youtu.be/DJQ_tiimW6g [12 min] > https://youtu.be/Y6AH1oJKivA [6 min] > Yes the issue is everything reproducible, but time to time it not > happens at first attempt. > I also uploaded other videos which proves that the issue definitely > exists if someone will launch those games in turn. > Reproducibility is only a matter of time. > > Anyway I didn't want you to spend so much time trying to reproduce it. > This monkey business fits me more than you. > It would be better if I could collect more useful info. Christian, Did you manage to reproduce the problem? At the weekend I faced with slab-use-after-free in amdgpu_vm_handle_moved. I didn't play in the games at this time. The Xwayland process was affected so it leads to desktop hang. ================================================================== BUG: KASAN: slab-use-after-free in amdgpu_vm_handle_moved+0x286/0x2d0 [amdgpu] Read of size 8 at addr ffff888295c66190 by task Xwayland:cs0/173185 CPU: 21 PID: 173185 Comm: Xwayland:cs0 Tainted: G W L ------- --- 6.3.0-0.rc7.20230420gitcb0856346a60.59.fc39.x86_64+debug #1 Hardware name: System manufacturer System Product Name/ROG STRIX X570-I GAMING, BIOS 4601 02/02/2023 Call Trace: <TASK> dump_stack_lvl+0x76/0xd0 print_report+0xcf/0x670 ? amdgpu_vm_handle_moved+0x286/0x2d0 [amdgpu] ? amdgpu_vm_handle_moved+0x286/0x2d0 [amdgpu] kasan_report+0xa8/0xe0 ? amdgpu_vm_handle_moved+0x286/0x2d0 [amdgpu] amdgpu_vm_handle_moved+0x286/0x2d0 [amdgpu] amdgpu_cs_ioctl+0x2b7e/0x5630 [amdgpu] ? __pfx___lock_acquire+0x10/0x10 ? __pfx_amdgpu_cs_ioctl+0x10/0x10 [amdgpu] ? mark_lock+0x101/0x16e0 ? __lock_acquire+0xe54/0x59f0 ? __pfx_lock_release+0x10/0x10 ? __pfx_amdgpu_cs_ioctl+0x10/0x10 [amdgpu] drm_ioctl_kernel+0x1fc/0x3d0 ? __pfx_drm_ioctl_kernel+0x10/0x10 drm_ioctl+0x4c5/0xaa0 ? __pfx_amdgpu_cs_ioctl+0x10/0x10 [amdgpu] ? __pfx_drm_ioctl+0x10/0x10 ? _raw_spin_unlock_irqrestore+0x66/0x80 ? lockdep_hardirqs_on+0x81/0x110 ? _raw_spin_unlock_irqrestore+0x4f/0x80 amdgpu_drm_ioctl+0xd2/0x1b0 [amdgpu] __x64_sys_ioctl+0x131/0x1a0 do_syscall_64+0x60/0x90 ? do_syscall_64+0x6c/0x90 ? lockdep_hardirqs_on+0x81/0x110 ? do_syscall_64+0x6c/0x90 ? lockdep_hardirqs_on+0x81/0x110 ? do_syscall_64+0x6c/0x90 ? lockdep_hardirqs_on+0x81/0x110 ? do_syscall_64+0x6c/0x90 ? lockdep_hardirqs_on+0x81/0x110 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ffb71b0892d Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00 RSP: 002b:00007ffb677fe840 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffb677fe9f8 RCX: 00007ffb71b0892d RDX: 00007ffb677fe900 RSI: 00000000c0186444 RDI: 000000000000000d RBP: 00007ffb677fe890 R08: 00007ffb677fea50 R09: 00007ffb677fe8e0 R10: 0000556c4611bec0 R11: 0000000000000246 R12: 00007ffb677fe900 R13: 00000000c0186444 R14: 000000000000000d R15: 00007ffb677fe9f8 </TASK> Allocated by task 173181: kasan_save_stack+0x33/0x60 kasan_set_track+0x25/0x30 __kasan_kmalloc+0x8f/0xa0 __kmalloc_node+0x65/0x160 amdgpu_bo_create+0x31e/0xfb0 [amdgpu] amdgpu_bo_create_user+0xca/0x160 [amdgpu] amdgpu_gem_create_ioctl+0x398/0x980 [amdgpu] drm_ioctl_kernel+0x1fc/0x3d0 drm_ioctl+0x4c5/0xaa0 amdgpu_drm_ioctl+0xd2/0x1b0 [amdgpu] __x64_sys_ioctl+0x131/0x1a0 do_syscall_64+0x60/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc Freed by task 173185: kasan_save_stack+0x33/0x60 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2e/0x50 __kasan_slab_free+0x10b/0x1a0 slab_free_freelist_hook+0x11e/0x1d0 __kmem_cache_free+0xc0/0x2e0 ttm_bo_release+0x667/0x9e0 [ttm] amdgpu_bo_unref+0x35/0x70 [amdgpu] amdgpu_gem_object_free+0x73/0xb0 [amdgpu] drm_gem_handle_delete+0xe3/0x150 drm_ioctl_kernel+0x1fc/0x3d0 drm_ioctl+0x4c5/0xaa0 amdgpu_drm_ioctl+0xd2/0x1b0 [amdgpu] __x64_sys_ioctl+0x131/0x1a0 do_syscall_64+0x60/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc Last potentially related work creation: kasan_save_stack+0x33/0x60 __kasan_record_aux_stack+0x97/0xb0 __call_rcu_common.constprop.0+0xf8/0x1af0 drm_sched_fence_release_scheduled+0xb8/0xe0 [gpu_sched] dma_resv_reserve_fences+0x4dc/0x7f0 ttm_eu_reserve_buffers+0x3f6/0x1190 [ttm] amdgpu_cs_ioctl+0x204d/0x5630 [amdgpu] drm_ioctl_kernel+0x1fc/0x3d0 drm_ioctl+0x4c5/0xaa0 amdgpu_drm_ioctl+0xd2/0x1b0 [amdgpu] __x64_sys_ioctl+0x131/0x1a0 do_syscall_64+0x60/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc Second to last potentially related work creation: kasan_save_stack+0x33/0x60 __kasan_record_aux_stack+0x97/0xb0 __call_rcu_common.constprop.0+0xf8/0x1af0 drm_sched_fence_release_scheduled+0xb8/0xe0 [gpu_sched] amdgpu_ctx_add_fence+0x2b1/0x390 [amdgpu] amdgpu_cs_ioctl+0x44d0/0x5630 [amdgpu] drm_ioctl_kernel+0x1fc/0x3d0 drm_ioctl+0x4c5/0xaa0 amdgpu_drm_ioctl+0xd2/0x1b0 [amdgpu] __x64_sys_ioctl+0x131/0x1a0 do_syscall_64+0x60/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc The buggy address belongs to the object at ffff888295c66000 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 400 bytes inside of freed 1024-byte region [ffff888295c66000, ffff888295c66400) The buggy address belongs to the physical page: page:00000000125ffbe3 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x295c60 head:00000000125ffbe3 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 anon flags: 0x17ffffc0010200(slab|head|node=0|zone=2|lastcpupid=0x1fffff) raw: 0017ffffc0010200 ffff88810004cdc0 0000000000000000 dead000000000001 raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888295c66080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888295c66100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff888295c66180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff888295c66200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff888295c66280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== -- Best Regards, Mike Gavrilov.
