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AHgh+RrbdBkD6I6UA3E/TX0OiMOqDdDWZoaOiWD5wAGGnpyveZXXCfoLj/2tXEdGqOeltqWciX4YG0USaQ==@vger.kernel.org X-Gm-Message-State: AOJu0YzlprKSgNcVzETspLZ1OVEZMOdTErY0M+A9YyuN+1AzU0DBd82N TKqxA7fxlaM+fkqN0ZLOOS5NZ+/xWFeM66tBvzL1kUJC+RRYBUFOojEFa1zEjKtbn+wh7A1AvYW Hpkz04MKuKxWTbHNBIGcLbv6bOKrK3CjGVHYC6NstkwYcmFLelAff4BX13dA= Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:2215:b0:6ae:7f68:22f3 with SMTP id 006d021491bc7-6aeb24aa301mr1600861eaf.16.1785974434448; Wed, 05 Aug 2026 17:00:34 -0700 (PDT) Date: Wed, 05 Aug 2026 17:00:34 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a73cea2.01d0871a.3a0d52.000b.GAE@google.com> Subject: [syzbot] [pm?] WARNING in __set_task_frozen From: syzbot To: lenb@kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, pavel@kernel.org, rafael@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 848acc8ffe1b Merge tag 'fsverity-for-linus' of git://git.k.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=11cd7e32580000 kernel config: https://syzkaller.appspot.com/x/.config?x=cb17729fb04b1e3a dashboard link: https://syzkaller.appspot.com/bug?extid=209eccd8f507de9f7f1b compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14fa93b9580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17dd7649580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/375d27e96ecb/disk-848acc8f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/4ba19a656b9d/vmlinux-848acc8f.xz kernel image: https://storage.googleapis.com/syzbot-assets/7c2a17aaee7c/bzImage-848acc8f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+209eccd8f507de9f7f1b@syzkaller.appspotmail.com ------------[ cut here ]------------ debug_locks && p->lockdep_depth WARNING: kernel/freezer.c:139 at __set_task_frozen+0x260/0x340 kernel/freezer.c:139, CPU#0: syz-executor276/5646 Modules linked in: CPU: 0 UID: 0 PID: 5646 Comm: syz-executor276 Not tainted syzkaller #0 PREEMPT_{RT,(full)} Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:__set_task_frozen+0x260/0x340 kernel/freezer.c:139 Code: 00 80 00 00 89 e8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 15 09 97 09 cc e8 ef 21 15 00 90 0f 0b 90 e9 f7 fe ff ff e8 e1 21 15 00 90 <0f> 0b 90 eb 93 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c c3 fd ff ff RSP: 0018:ffffc9000453f9f0 EFLAGS: 00010093 RAX: ffffffff81b0b75f RBX: ffff888040865d00 RCX: ffff88801eaebe00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffffff81b0b500 R12: ffff888040865d18 R13: 1ffff1100810cba3 R14: 0000000000000000 R15: ffff888040866900 FS: 0000555557b46400(0000) GS:ffff888125c3e000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555557b577e8 CR3: 000000003c3b8000 CR4: 00000000003526f0 Call Trace: task_call_func+0x1aa/0x260 kernel/sched/core.c:4495 __freeze_task kernel/freezer.c:150 [inline] freeze_task+0x216/0x390 kernel/freezer.c:169 try_to_freeze_tasks+0x190/0x620 kernel/power/process.c:54 freeze_processes+0xce/0x1e0 kernel/power/process.c:137 suspend_freeze_processes kernel/power/power.h:281 [inline] suspend_prepare kernel/power/suspend.c:387 [inline] enter_state kernel/power/suspend.c:609 [inline] pm_suspend+0x2f1/0x760 kernel/power/suspend.c:644 state_store+0x206/0x290 kernel/power/main.c:819 kernfs_fop_write_iter+0x3a5/0x540 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x61e/0xbb0 fs/read_write.c:687 ksys_write+0x156/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fae06a8bea9 Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 00 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 d8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffcfa30da68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007fae06a8bea9 RDX: 0000000000000003 RSI: 0000200000000200 RDI: 0000000000000003 RBP: 0000000000000000 R08: 000000000000000a R09: 000000000000000a R10: 000000000000000a R11: 0000000000000246 R12: 00007ffcfa30dd78 R13: 0000000000000002 R14: 0000200000000003 R15: 0000000000000000 --- 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