ci2 starts bisection 2023-06-22 10:18:11.915593741 +0000 UTC m=+135276.144552011 bisecting fixing commit since 9d6bde853685609a631871d7c12be94fdf8d912e building syzkaller on 4bce1a3e705a8b62de8194bdb28f5eef89c8feec ensuring issue is reproducible on original commit 9d6bde853685609a631871d7c12be94fdf8d912e testing commit 9d6bde853685609a631871d7c12be94fdf8d912e gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: e5103f778a1232cba0f5b4fe5daf82f641016dae735b65b1ced95c5ca93c1a77 all runs: crashed: WARNING in drm_wait_one_vblank testing current HEAD f67653019430833d5003f16817d7fa85272a6a76 testing commit f67653019430833d5003f16817d7fa85272a6a76 gcc compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2 kernel signature: 0e4c5d10b856bd6552630d3dd6b81eb5a8ba8c62a7dd33d7c1f481ade38900f6 all runs: crashed: WARNING in drm_wait_one_vblank crash still not fixed/happens on the oldest tested release revisions tested: 2, total time: 42m11.995678215s (build: 33m25.77413056s, test: 7m38.920533341s) crash still not fixed on HEAD or HEAD had kernel test errors commit msg: Linux 5.15.118 crash: WARNING in drm_wait_one_vblank WARNING: CPU: 0 PID: 4647 at drivers/gpu/drm/drm_vblank.c:1269 drm_wait_one_vblank+0x375/0x460 drivers/gpu/drm/drm_vblank.c:1269 Modules linked in: CPU: 0 PID: 4647 Comm: syz-executor.5 Not tainted 5.15.118-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:drm_wait_one_vblank+0x375/0x460 drivers/gpu/drm/drm_vblank.c:1269 Code: d9 00 00 00 4d 8b 75 50 4d 85 f6 74 48 4c 89 ef e8 b0 c8 55 00 44 89 e1 4c 89 f2 48 c7 c7 60 55 72 89 48 89 c6 e8 14 32 78 04 <0f> 0b e9 9f fd ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 RSP: 0018:ffffc90003867b88 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 1ffff9200070cf72 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffffffff895eba40 RDI: fffff5200070cf63 RBP: ffff888146e14000 R08: 0000000000000001 R09: ffff8880b9c33f47 R10: ffffed10173867e8 R11: 0000000000000001 R12: 0000000000000000 R13: ffff8880199cc010 R14: ffff88814720dde8 R15: ffff8880199da030 FS: 00007f2971a21700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa39b31c718 CR3: 0000000022c9d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: drm_fb_helper_ioctl+0x10a/0x150 drivers/gpu/drm/drm_fb_helper.c:1197 do_fb_ioctl+0x1a8/0x5c0 drivers/video/fbdev/core/fbmem.c:1191 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x11f/0x190 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f29726af169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f2971a21168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f29727cef80 RCX: 00007f29726af169 RDX: 0000000000000000 RSI: 0000000040044620 RDI: 0000000000000003 RBP: 00007f297270aca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca7a6288f R14: 00007f2971a21300 R15: 0000000000022000