syzbot


WARNING in trace_suspend_resume

Status: upstream: reported C repro on 2025/07/31 14:52
Subsystems: net
[Documentation on labels]
Reported-by: syzbot+99d4fec338b62b703891@syzkaller.appspotmail.com
First crash: 93d, last: 2h25m
Discussions (3)
Title Replies (including bot) Last reply
[syzbot] Monthly bpf report (Oct 2025) 0 (1) 2025/10/06 17:29
[syzbot] Monthly mm report (Sep 2025) 0 (1) 2025/09/15 06:54
[syzbot] [bpf?] WARNING in trace_suspend_resume 1 (4) 2025/08/01 10:43
Last patch testing requests (1)
Created Duration User Patch Repo Result
2025/08/01 10:14 27m david@redhat.com patch upstream OK log

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4155 at mm/highmem.c:622 kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622
Modules linked in:
Kernel panic - not syncing: kernel: panic_on_warn set ...
CPU: 0 UID: 0 PID: 4155 Comm: syz.1.17 Not tainted 6.16.0-syzkaller #0 PREEMPT 
Hardware name: ARM-Versatile Express
Call trace: 
[<80201a24>] (dump_backtrace) from [<80201b20>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257)
 r7:00000000 r6:8281f77c r5:00000000 r4:8224bc00
[<80201b08>] (show_stack) from [<8021fb00>] (__dump_stack lib/dump_stack.c:94 [inline])
[<80201b08>] (show_stack) from [<8021fb00>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120)
[<8021faac>] (dump_stack_lvl) from [<8021fb40>] (dump_stack+0x18/0x1c lib/dump_stack.c:129)
 r5:00000000 r4:82a76d18
[<8021fb28>] (dump_stack) from [<80202624>] (vpanic+0x10c/0x360 kernel/panic.c:440)
[<80202518>] (vpanic) from [<802028ac>] (trace_suspend_resume+0x0/0xd8 kernel/panic.c:574)
 r7:804be014
[<80202878>] (panic) from [<802548c4>] (check_panic_on_warn kernel/panic.c:333 [inline])
[<80202878>] (panic) from [<802548c4>] (get_taint+0x0/0x1c kernel/panic.c:328)
 r3:8280c684 r2:00000001 r1:822326d8 r0:8223a0a0
[<80254850>] (check_panic_on_warn) from [<80254a28>] (__warn+0x80/0x188 kernel/panic.c:845)
[<802549a8>] (__warn) from [<80254ca8>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:872)
 r8:00000009 r7:82266338 r6:df985d14 r5:840d5400 r4:00000000
[<80254b34>] (warn_slowpath_fmt) from [<804be014>] (kunmap_local_indexed+0x20c/0x224 mm/highmem.c:622)
 r10:00000000 r9:ded86c30 r8:deb6caa4 r7:00a00000 r6:00000003 r5:840d5400
 r4:ffefd000
[<804bde08>] (kunmap_local_indexed) from [<8053ace8>] (__kunmap_local include/linux/highmem-internal.h:102 [inline])
[<804bde08>] (kunmap_local_indexed) from [<8053ace8>] (move_pages_pte mm/userfaultfd.c:1457 [inline])
[<804bde08>] (kunmap_local_indexed) from [<8053ace8>] (move_pages+0xb1c/0x1a00 mm/userfaultfd.c:1860)
 r7:00a00000 r6:00000000 r5:8490d6ac r4:ffefb000
[<8053a1cc>] (move_pages) from [<805c401c>] (userfaultfd_move fs/userfaultfd.c:1923 [inline])
[<8053a1cc>] (move_pages) from [<805c401c>] (userfaultfd_ioctl+0x1254/0x2408 fs/userfaultfd.c:2046)
 r10:8425d6c0 r9:df985e98 r8:00000001 r7:21000000 r6:00000000 r5:20000040
 r4:8486d000
[<805c2dc8>] (userfaultfd_ioctl) from [<8056c4d4>] (vfs_ioctl fs/ioctl.c:51 [inline])
[<805c2dc8>] (userfaultfd_ioctl) from [<8056c4d4>] (do_vfs_ioctl fs/ioctl.c:552 [inline])
[<805c2dc8>] (userfaultfd_ioctl) from [<8056c4d4>] (__do_sys_ioctl fs/ioctl.c:596 [inline])
[<805c2dc8>] (userfaultfd_ioctl) from [<8056c4d4>] (sys_ioctl+0x130/0xba0 fs/ioctl.c:584)
 r10:840d5400 r9:00000003 r8:8572d780 r7:20000040 r6:8572d780 r5:00000000
 r4:c028aa05
[<8056c3a4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:67)
Exception stack(0xdf985fa8 to 0xdf985ff0)
5fa0:                   00000000 00000000 00000003 c028aa05 20000040 00000000
5fc0: 00000000 00000000 002f6300 00000036 00000000 002f62d4 00000938 00000000
5fe0: 7eb28780 7eb28770 000193dc 001321f0
 r10:00000036 r9:840d5400 r8:8020029c r7:00000036 r6:002f6300 r5:00000000
 r4:00000000
Rebooting in 86400 seconds..

Crashes (1259):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/08/01 10:08 upstream f2d282e1dfb3 0c075d67 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/11/01 14:17 upstream ba36dd5ee6fd 2c50b6a9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/11/01 04:38 upstream b909d77359b8 2c50b6a9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/11/01 02:42 upstream b909d77359b8 2c50b6a9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/31 13:43 upstream d127176862a9 2c50b6a9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/31 02:20 upstream e53642b87a4f 2c50b6a9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/31 00:23 upstream e53642b87a4f 2c50b6a9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/30 23:18 upstream e53642b87a4f 2c50b6a9 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/30 09:25 upstream e53642b87a4f fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/29 21:46 upstream e53642b87a4f fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/29 08:14 upstream 8eefed8f65cc fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/29 07:47 upstream 8eefed8f65cc fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/29 06:44 upstream 8eefed8f65cc fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/28 18:10 upstream fd57572253bc fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/28 14:17 upstream fd57572253bc fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/28 09:40 upstream fd57572253bc fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/28 05:18 upstream fd57572253bc fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/27 21:11 upstream dcb6fa37fd7b fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/27 19:54 upstream dcb6fa37fd7b fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/27 19:35 upstream dcb6fa37fd7b fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/27 18:28 upstream dcb6fa37fd7b fd2207e7 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/27 03:42 upstream dbfc6422a34d c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/26 14:55 upstream 72761a7e3122 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/26 12:27 upstream 72761a7e3122 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/26 09:53 upstream 72761a7e3122 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/26 09:52 upstream 72761a7e3122 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/26 08:48 upstream 72761a7e3122 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/25 20:15 upstream 566771afc7a8 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/25 10:02 upstream d2818517e348 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/25 07:13 upstream d2818517e348 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/25 06:09 upstream d2818517e348 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/25 05:02 upstream d2818517e348 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/24 17:21 upstream 6fab32bb6508 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/24 16:11 upstream 6fab32bb6508 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/24 06:49 upstream ab431bc39741 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/24 05:32 upstream ab431bc39741 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/24 04:25 upstream ab431bc39741 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/24 01:28 upstream ab431bc39741 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/23 12:03 upstream 43e9ad0c55a3 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/23 02:15 upstream 552c50713f27 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/23 00:57 upstream 552c50713f27 c0460fcd .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/22 05:08 upstream 211ddde0823f 252fbbad .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/22 02:53 upstream 211ddde0823f 252fbbad .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/21 10:23 upstream 211ddde0823f 9832ed61 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/21 09:28 upstream 211ddde0823f 9832ed61 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/20 22:43 upstream 211ddde0823f d422939c .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/20 20:40 upstream 211ddde0823f d422939c .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/20 01:54 upstream d9043c79ba68 1c8c8cd8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/19 12:16 upstream 1c64efcb083c 1c8c8cd8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/19 11:10 upstream 1c64efcb083c 1c8c8cd8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/19 10:15 upstream 1c64efcb083c 1c8c8cd8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/10/19 09:13 upstream 1c64efcb083c 1c8c8cd8 .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/07/31 12:47 upstream 260f6f4fda93 f8f2b4da .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
2025/07/31 10:43 upstream 260f6f4fda93 f8f2b4da .config console log report info [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu2-arm32 WARNING in trace_suspend_resume
* Struck through repros no longer work on HEAD.