From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f198.google.com (mail-oi1-f198.google.com [209.85.167.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7AC653769E9 for ; Mon, 10 Aug 2026 10:24:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786357480; cv=none; b=NMKZmk1ZcYAQ/yz9Jlp7r1vXj5Hh9uAfMjYECR0+BWhV7Gx2qg66zymDyTgH33G6Ge+90ZoNr9h8hUdwn498S/JNwV3WhyfuUuzHO3aWuqsYs1wuVqfYki2Udsj+HlxSBdGhQcbu6SKdM7aGxwpZMRTAWp4TblH917as6xDkhsM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786357480; c=relaxed/simple; bh=yQ1afM2ceyrCs9PVtue+UD7EIdsF3F7rJR66vz9gCho=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=jSYfJq54VKUGKNWT9tbCf2nUti5Rt9+jXx06Rw5vemIk8cq0zZ7M9wD3jsZd41f7sAB2Sx5orm0WW5Fez3w2DX17DFEzwHblrEVDxKB+u+QiIGYUp0wr04M/3l8QTOqmuX7iUXqVStT4oCA8di4pNPTNPfKoXphpZfDNLd9W6uw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.167.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-oi1-f198.google.com with SMTP id 5614622812f47-4a416619e8dso2986603b6e.1 for ; Mon, 10 Aug 2026 03:24:38 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786357477; x=1786962277; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=diOkV4n/K0fzmwoWMYwrzjoYAkxku91O+AW0RHw0zbY=; b=pvS/DYob2NC8e3o+J+k6qv0cTUkaKVGbfZDNOC2icrElEvl97hifLb3uWTPy3DfYeu 47GNbCjn4I2aMRz4rARC6J3cQMVM7SPsC1p7C4bjWlo3Ll6xYdf31V95abNGz4jBHpnL tbaDesctIK8GXaISf7aAD0fRRIBd2xEqE8Ege4KlNDMCJIGn/JsMl0FIxKXpspS3D7OO pzQnjeqVyedjUXm1VhUNRdo5yQEjOMxOFtMEwxsr94ghSjTem5tKTI4ot3PHf5p4HRWn xcGpdajRPvd3h82bt5+15mZTtqvvmQlZ+ff9wu4wQpfbxNwt/3wpUTgxCu/ksWRTOemQ f/tg== X-Gm-Message-State: AOJu0YxOnXsUPSppC8srf+txh9K7oyGeh1RypYV9Iy0aOUfNsJj+ycOk MKm8FHdwXZMLGw7+sU2dJasA1VaFpUqlmuIpEFEPEqL/JEJ8jojSWoqr1ydrXHLQidkOJNliDXD tHz8ci5a8JqEzPZCowOdpOxcl9rrFR58ogCybC/MIUYkkwc+WURUdI6VzBOU= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:2381:b0:492:c9a4:2104 with SMTP id 5614622812f47-4b1af83fae5mr9019870b6e.10.1786357477383; Mon, 10 Aug 2026 03:24:37 -0700 (PDT) Date: Mon, 10 Aug 2026 03:24:37 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a79a6e5.01d0871a.3a0d52.00a7.GAE@google.com> Subject: [syzbot] [pm?] WARNING: ODEBUG bug in trace_suspend_resume (2) From: syzbot To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: db2ddb871435 Linux 7.2-rc7 git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux master console output: https://syzkaller.appspot.com/x/log.txt?x=11212149580000 kernel config: https://syzkaller.appspot.com/x/.config?x=fa49d7bda29d9792 dashboard link: https://syzkaller.appspot.com/bug?extid=98850521518b962c5bab compiler: arm-linux-gnueabi-gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44 userspace arch: arm C reproducer: https://syzkaller.appspot.com/x/repro.c?x=145762c6580000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+98850521518b962c5bab@syzkaller.appspotmail.com ODEBUG: object df805d04 is NOT on stack df864000, but annotated. ------------[ cut here ]------------ WARNING: lib/debugobjects.c:672 at debug_object_is_on_stack lib/debugobjects.c:672 [inline], CPU#1: swapper/1/0 WARNING: lib/debugobjects.c:672 at lookup_object_or_alloc.part.0+0x180/0x1ec lib/debugobjects.c:705, CPU#1: swapper/1/0 Modules linked in: Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express Call trace: frame pointer underflow [<80201998>] (dump_backtrace) from [<80201a8c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:82a20f78 r6:00000000 r5:82333374 r4:00000001 [<80201a74>] (show_stack) from [<8021ec68>] (__dump_stack lib/dump_stack.c:94 [inline]) [<80201a74>] (show_stack) from [<8021ec68>] (dump_stack_lvl+0x5c/0x70 lib/dump_stack.c:120) [<8021ec0c>] (dump_stack_lvl) from [<8021ec94>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r7:82a20f78 r6:00000000 r5:8317e200 r4:82c83d40 [<8021ec7c>] (dump_stack) from [<80202590>] (vpanic+0x114/0x320 kernel/panic.c:651) [<8020247c>] (vpanic) from [<802027d0>] (trace_suspend_resume+0x0/0x100 kernel/panic.c:788) r7:8095e608 [<8020279c>] (panic) from [<80251a80>] (check_panic_on_warn kernel/panic.c:525 [inline]) [<8020279c>] (panic) from [<80251a80>] (get_taint+0x0/0x1c kernel/panic.c:520) r3:82a0b144 r2:00000001 r1:823190d8 r0:82320a34 [<80251a08>] (check_panic_on_warn) from [<80251bfc>] (__warn+0x98/0x1a4 kernel/panic.c:1104) [<80251b64>] (__warn) from [<80251e80>] (warn_slowpath_fmt+0x178/0x1f4 kernel/panic.c:1136) r8:00000009 r7:8238dd84 r6:df805c1c r5:8317e200 r4:00000000 [<80251d0c>] (warn_slowpath_fmt) from [<8095e608>] (debug_object_is_on_stack lib/debugobjects.c:672 [inline]) [<80251d0c>] (warn_slowpath_fmt) from [<8095e608>] (lookup_object_or_alloc.part.0+0x180/0x1ec lib/debugobjects.c:705) r10:00000001 r9:81c04360 r8:df805d04 r7:00000000 r6:82d1bbf4 r5:82cfc288 r4:852e1270 [<8095e488>] (lookup_object_or_alloc.part.0) from [<8095ec18>] (lookup_object_or_alloc lib/debugobjects.c:682 [inline]) [<8095e488>] (lookup_object_or_alloc.part.0) from [<8095ec18>] (__debug_object_init+0x140/0x1d8 lib/debugobjects.c:798) r10:0001f930 r9:82cfc2c4 r8:00000001 r7:81c04360 r6:20000113 r5:82d1bbf8 r4:df805d04 r3:00000001 [<8095ead8>] (__debug_object_init) from [<8095ed04>] (debug_object_init_on_stack lib/debugobjects.c:849 [inline]) [<8095ead8>] (__debug_object_init) from [<8095ed04>] (debug_object_init_on_stack+0x28/0x2c lib/debugobjects.c:844) r10:df805eac r9:fffff2a8 r8:00000101 r7:00000000 r6:ddde3e00 r5:82b62308 r4:00000000 [<8095ecdc>] (debug_object_init_on_stack) from [<80300a84>] (init_rcu_head_on_stack+0x18/0x1c kernel/rcu/update.c:487) [<80300a6c>] (init_rcu_head_on_stack) from [<80304e4c>] (__synchronize_srcu+0x7c/0xcc kernel/rcu/srcutree.c:1494) [<80304dd0>] (__synchronize_srcu) from [<80304f38>] (synchronize_srcu_expedited kernel/rcu/srcutree.c:1521 [inline]) [<80304dd0>] (__synchronize_srcu) from [<80304f38>] (synchronize_srcu+0x78/0x14c kernel/rcu/srcutree.c:1577) r5:60000113 r4:82b62308 [<80304ec0>] (synchronize_srcu) from [<80bf0cd0>] (wakeup_source_remove drivers/base/power/wakeup.c:201 [inline]) [<80304ec0>] (synchronize_srcu) from [<80bf0cd0>] (wakeup_source_unregister.part.0+0x64/0x1b4 drivers/base/power/wakeup.c:237) r7:00000000 r6:862c4100 r5:00000113 r4:86469f00 [<80bf0c6c>] (wakeup_source_unregister.part.0) from [<80bf0e38>] (wakeup_source_unregister+0x18/0x1c drivers/base/power/wakeup.c:236) r7:00000000 r6:862c4100 r5:866aa000 r4:866aa008 [<80bf0e20>] (wakeup_source_unregister) from [<812f2368>] (mmc_host_classdev_release+0x1c/0x58 drivers/mmc/core/host.c:69) [<812f234c>] (mmc_host_classdev_release) from [<80bcd9cc>] (device_release+0x40/0xb0 drivers/base/core.c:2636) r5:851bc500 r4:866aa008 [<80bcd98c>] (device_release) from [<81b351d0>] (kobject_cleanup lib/kobject.c:689 [inline]) [<80bcd98c>] (device_release) from [<81b351d0>] (kobject_release lib/kobject.c:720 [inline]) [<80bcd98c>] (device_release) from [<81b351d0>] (kref_put include/linux/kref.h:65 [inline]) [<80bcd98c>] (device_release) from [<81b351d0>] (kobject_put+0xa0/0x258 lib/kobject.c:737) r5:81d5ae9c r4:866aa008 [<81b35130>] (kobject_put) from [<80bcdb40>] (put_device+0x18/0x1c drivers/base/core.c:3880) r8:00000101 r7:81310b3c r6:866aa000 r5:00000000 r4:866aa000 [<80bcdb28>] (put_device) from [<812f2ac4>] (mmc_free_host+0x28/0x2c drivers/mmc/core/host.c:702) [<812f2a9c>] (mmc_free_host) from [<81310c9c>] (vub300_delete drivers/mmc/host/vub300.c:379 [inline]) [<812f2a9c>] (mmc_free_host) from [<81310c9c>] (kref_put include/linux/kref.h:65 [inline]) [<812f2a9c>] (mmc_free_host) from [<81310c9c>] (vub300_inactivity_timer_expired drivers/mmc/host/vub300.c:747 [inline]) [<812f2a9c>] (mmc_free_host) from [<81310c9c>] (vub300_inactivity_timer_expired+0x160/0x1b8 drivers/mmc/host/vub300.c:742) r5:00000000 r4:866aaaec [<81310b3c>] (vub300_inactivity_timer_expired) from [<8032ef48>] (call_timer_fn+0x30/0x268 kernel/time/timer.c:1748) r7:81310b3c r6:8317e200 r5:866aaaec r4:866aaaec [<8032ef18>] (call_timer_fn) from [<8032f41c>] (expire_timers kernel/time/timer.c:1799 [inline]) [<8032ef18>] (call_timer_fn) from [<8032f41c>] (__run_timers+0x29c/0x420 kernel/time/timer.c:2374) r10:df805eac r9:fffff2a8 r8:00000000 r7:81310b3c r6:82a0b150 r5:866aaaec r4:ddddafc0 [<8032f180>] (__run_timers) from [<8032f608>] (__run_timer_base kernel/time/timer.c:2386 [inline]) [<8032f180>] (__run_timers) from [<8032f608>] (__run_timer_base kernel/time/timer.c:2378 [inline]) [<8032f180>] (__run_timers) from [<8032f608>] (run_timer_base+0x68/0x78 kernel/time/timer.c:2395) r10:8317e200 r9:00000082 r8:00000101 r7:00000004 r6:00000002 r5:00000001 r4:ddddafc0 [<8032f5a0>] (run_timer_base) from [<8032f634>] (run_timer_softirq+0x1c/0x34 kernel/time/timer.c:2405) r4:82a03084 [<8032f618>] (run_timer_softirq) from [<8025b0dc>] (handle_softirqs+0x160/0x4e4 kernel/softirq.c:622) [<8025af7c>] (handle_softirqs) from [<8025b5fc>] (__do_softirq kernel/softirq.c:656 [inline]) [<8025af7c>] (handle_softirqs) from [<8025b5fc>] (invoke_softirq kernel/softirq.c:496 [inline]) [<8025af7c>] (handle_softirqs) from [<8025b5fc>] (__irq_exit_rcu+0x150/0x1d0 kernel/softirq.c:735) r10:824e709c r9:8317e200 r8:00000000 r7:df865f18 r6:824e709c r5:82522544 r4:8317e200 [<8025b4ac>] (__irq_exit_rcu) from [<8025b934>] (irq_exit+0x10/0x18 kernel/softirq.c:764) r5:82522544 r4:828d3e6c [<8025b924>] (irq_exit) from [<81b5d85c>] (generic_handle_arch_irq+0x7c/0x80 kernel/irq/handle.c:293) [<81b5d7e0>] (generic_handle_arch_irq) from [<81b2a4e0>] (call_with_stack+0x1c/0x20 arch/arm/lib/call_with_stack.S:40) r9:8317e200 r8:00000000 r7:df865f4c r6:ffffffff r5:20000013 r4:81b5f0d0 [<81b2a4c4>] (call_with_stack) from [<80200bec>] (__irq_svc+0x8c/0xbc arch/arm/kernel/entry-armv.S:228) Exception stack(0xdf865f18 to 0xdf865f60) 5f00: 00000001 82333374 5f20: 000780b4 00000001 8317e200 00000001 00000000 828d3170 00000000 82a0b1c4 5f40: 824e709c df865f84 df865f58 df865f68 81b5e500 81b5f0d0 20000013 ffffffff [<81b5f084>] (default_idle_call) from [<802b80fc>] (cpuidle_idle_call kernel/sched/idle.c:199 [inline]) [<81b5f084>] (default_idle_call) from [<802b80fc>] (do_idle+0x240/0x3c0 kernel/sched/idle.c:355) r7:828d3170 r6:00000000 r5:82a0b1a4 r4:8317e200 [<802b7ebc>] (do_idle) from [<802b858c>] (cpu_startup_entry+0x30/0x34 kernel/sched/idle.c:454) r10:00000000 r9:414fc0f0 r8:80003000 r7:82c834a4 r6:30c0387d r5:00000001 r4:00000090 [<802b855c>] (cpu_startup_entry) from [<8022fc54>] (secondary_start_kernel+0x12c/0x198 arch/arm/kernel/smp.c:478) [<8022fb28>] (secondary_start_kernel) from [<80220094>] (__enable_mmu+0x0/0xc arch/arm/kernel/head.S:446) r5:00000000 r4:830b70c0 Rebooting in 86400 seconds.. --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup