syzbot


WARNING in drm_clflush_pages

Status: upstream: reported C repro on 2023/05/25 04:47
Bug presence: origin:lts-only
[Documentation on labels]
Reported-by: syzbot+15554a0a2b0e4850eecb@syzkaller.appspotmail.com
First crash: 524d, last: 1h31m
Bug presence (2)
Date Name Commit Repro Result
2023/05/25 linux-5.15.y (ToT) 1fe619a7d252 C [report] WARNING in drm_clflush_pages
2023/05/25 upstream (ToT) 933174ae28ba C Didn't crash
Fix bisection attempts (8)
Created Duration User Patch Repo Result
2024/10/15 00:14 0m fix candidate upstream error job log
2024/07/18 21:39 4m fix candidate upstream error job log
2024/05/21 03:16 0m fix candidate upstream error job log
2024/04/01 16:53 0m fix candidate upstream error job log
2024/02/23 23:56 1m fix candidate upstream error job log
2023/12/26 09:15 0m fix candidate upstream error job log
2023/11/21 12:56 0m fix candidate upstream error job log
2023/09/11 08:03 6m fix candidate upstream error job log

Sample crash report:
Architecture has no drm_cache.c support
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4020 at drivers/gpu/drm/drm_cache.c:116 drm_clflush_pages+0x1c/0x2c drivers/gpu/drm/drm_cache.c:115
Modules linked in:
CPU: 1 PID: 4020 Comm: syz-executor391 Not tainted 5.15.167-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : drm_clflush_pages+0x1c/0x2c drivers/gpu/drm/drm_cache.c:115
lr : drm_clflush_pages+0x1c/0x2c drivers/gpu/drm/drm_cache.c:115
sp : ffff80001d1577f0
x29: ffff80001d1577f0 x28: 1fffe00019f87304 x27: ffff0000cfc39800
x26: dfff800000000000 x25: 1fffe00019611147 x24: dfff800000000000
x23: 000000000000c000 x22: ffff0000cb088a30 x21: ffff0000d212e700
x20: ffff0000cb088800 x19: ffff0000cb088a30 x18: 0000000000000001
x17: 0000000000000000 x16: ffff800011ac23e0 x15: 00000000ffffffff
x14: ffff0000cd348000 x13: 0000000000000001 x12: 0000000000000001
x11: 0000000000000000 x10: 0000000000000000 x9 : e8521dedcb192c00
x8 : e8521dedcb192c00 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001d156f58 x4 : ffff800014b9fae0 x3 : ffff80000a987d1c
x2 : ffff0001b41aed10 x1 : 0000000100000000 x0 : 0000000000000027
Call trace:
 drm_clflush_pages+0x1c/0x2c drivers/gpu/drm/drm_cache.c:115
 vgem_prime_pin+0xd4/0x184 drivers/gpu/drm/vgem/vgem_drv.c:312
 drm_gem_pin+0x6c/0x8c drivers/gpu/drm/drm_gem.c:1142
 drm_gem_map_attach+0x40/0x50 drivers/gpu/drm/drm_prime.c:583
 dma_buf_dynamic_attach+0x1b8/0x748 drivers/dma-buf/dma-buf.c:764
 dma_buf_attach+0x30/0x40 drivers/dma-buf/dma-buf.c:830
 drm_gem_prime_import_dev+0xf4/0x338 drivers/gpu/drm/drm_prime.c:934
 drm_gem_prime_import drivers/gpu/drm/drm_prime.c:983 [inline]
 drm_gem_prime_fd_to_handle+0x1ac/0x464 drivers/gpu/drm/drm_prime.c:321
 drm_prime_fd_to_handle_ioctl+0x94/0xd0 drivers/gpu/drm/drm_prime.c:375
 drm_ioctl_kernel+0x2cc/0x458 drivers/gpu/drm/drm_ioctl.c:801
 drm_ioctl+0x5d0/0xa64 drivers/gpu/drm/drm_ioctl.c:904
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl fs/ioctl.c:860 [inline]
 __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 13622
hardirqs last  enabled at (13621): [<ffff80000832c17c>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257
hardirqs last disabled at (13622): [<ffff800011abda6c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (13134): [<ffff8000081b6d74>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (13134): [<ffff8000081b6d74>] handle_softirqs+0xb88/0xdbc kernel/softirq.c:586
softirqs last disabled at (13129): [<ffff8000081b740c>] __do_softirq kernel/softirq.c:592 [inline]
softirqs last disabled at (13129): [<ffff8000081b740c>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (13129): [<ffff8000081b740c>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (13129): [<ffff8000081b740c>] __irq_exit_rcu+0x268/0x4d8 kernel/softirq.c:641
---[ end trace 7c562fbf55029bfc ]---

Crashes (6068):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/10/02 22:50 linux-5.15.y 3a5928702e71 02f9582a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/06/24 06:55 linux-5.15.y 4878aadf2d15 edc5149a .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/03/26 05:21 linux-5.15.y b95c01af2113 bcd9b39f .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/03/25 14:43 linux-5.15.y b95c01af2113 0ea90952 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2023/12/14 14:44 linux-5.15.y d0fc081c6241 3222d10c .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2023/09/05 13:06 linux-5.15.y 8f790700c974 0b6286dc .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2023/05/25 06:21 linux-5.15.y 1fe619a7d252 4bce1a3e .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2023/05/27 11:43 linux-5.15.y 1fe619a7d252 cf184559 .config console log report syz C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/30 21:26 linux-5.15.y 74cdd62cb470 fb888278 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/30 08:03 linux-5.15.y 74cdd62cb470 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/30 07:11 linux-5.15.y 74cdd62cb470 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/29 12:18 linux-5.15.y 74cdd62cb470 66aeb999 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/29 03:04 linux-5.15.y 74cdd62cb470 9efb3cc7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/29 00:17 linux-5.15.y 74cdd62cb470 9efb3cc7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/28 13:38 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/28 12:17 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/28 11:14 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/28 04:28 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/28 04:26 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/27 21:16 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/27 20:13 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/27 18:51 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/27 16:52 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/27 16:52 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/27 01:37 linux-5.15.y 74cdd62cb470 65e8686b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/23 16:29 linux-5.15.y 74cdd62cb470 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/23 14:05 linux-5.15.y 74cdd62cb470 15fa2979 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/22 13:57 linux-5.15.y 584a40a22cb9 a93682b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/21 21:46 linux-5.15.y 584a40a22cb9 f1e4447c .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/21 11:20 linux-5.15.y 584a40a22cb9 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/20 12:16 linux-5.15.y 584a40a22cb9 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/20 06:54 linux-5.15.y 584a40a22cb9 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/20 05:41 linux-5.15.y 584a40a22cb9 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/20 02:31 linux-5.15.y 584a40a22cb9 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/20 00:59 linux-5.15.y 584a40a22cb9 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/19 08:49 linux-5.15.y 584a40a22cb9 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/19 06:47 linux-5.15.y 584a40a22cb9 cd6fc0a3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/18 19:07 linux-5.15.y 584a40a22cb9 666f77ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/18 16:26 linux-5.15.y 584a40a22cb9 666f77ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/17 23:37 linux-5.15.y 584a40a22cb9 666f77ed .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/15 08:35 linux-5.15.y 3a5928702e71 b01b6661 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/15 05:59 linux-5.15.y 3a5928702e71 b01b6661 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/11 16:05 linux-5.15.y 3a5928702e71 cd942402 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/11 03:11 linux-5.15.y 3a5928702e71 8fbfc0c8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/10 11:37 linux-5.15.y 3a5928702e71 0278d004 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/10 00:13 linux-5.15.y 3a5928702e71 56fb2cb7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/09 22:49 linux-5.15.y 3a5928702e71 56fb2cb7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/09 01:40 linux-5.15.y 3a5928702e71 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/09 01:38 linux-5.15.y 3a5928702e71 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/09 00:33 linux-5.15.y 3a5928702e71 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2024/10/08 13:31 linux-5.15.y 3a5928702e71 402f1df0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
2023/05/25 04:47 linux-5.15.y 1fe619a7d252 4bce1a3e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in drm_clflush_pages
* Struck through repros no longer work on HEAD.