From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f197.google.com (mail-il1-f197.google.com [209.85.166.197]) (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 EB25E39FC3 for ; Wed, 21 Feb 2024 06:13:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.197 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708496006; cv=none; b=p/y6W+JRF32zI5A/RwuA1by9ceoT/s+KjRwZY0sIaTLKIdRjMdHrgE0ugVFFF0wBc4aeRG9hOtKpLqs8YlL3afhaCJXFOq7RspIk5WvsjbT16R4Qu3DbaYH1IctwVA1uVjnNYg1fxuHQFMmaZtjmCW+ECnYZdntOnd4Ag1+jhVQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1708496006; c=relaxed/simple; bh=D50I3E4E9uZ8Skb1OpRz0bIql4snS5AXgtxCnZXlypk=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=CfMTZknm7UCcn8UCWWnkwF+FiXzagbMA5OZf0tyfNvyssS37fIPCOu1T4foHYfiQJ1RThsIholztUzEQhypAMWfFTwTdaW797rjk68Jooaci5J1Mpr8jAEUkGShruHlaZNX33xAYweL8eICVbkrxrk+gtIPntp0agmccNDleMZM= 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=209.85.166.197 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-il1-f197.google.com with SMTP id e9e14a558f8ab-3653311922eso28248915ab.0 for ; Tue, 20 Feb 2024 22:13:24 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1708496004; x=1709100804; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=5T7eHue0xMZQbRjJLBhKECiRWQlC4MuMpelXVyZniJw=; b=bdP2yY2E39BWWfm2pmwPOBpU1N68UTx3N8ERin77+u4Opml4Cbn3//5tW4MOt63xYO 1YDvykc1OpMtlixeFck80QMcBR1Zq9Q0tzYIzNXBuIGca68tT5PXZ+omB+V2GOhrmPiV CaqAPCTIZhwXZ0dOt/F/5rWKRCqcFtbEuFE5SsKR1pUWXFlxkCSgSfxYi0SCDuQAQ0Sw oMmN8KPp1TunD1w0imzn8oK8QKeAVwYsLzph2uFBjjhgwlRkqt++n71cgfM41Hxgp1lf AapCUwhw2S+C1wxG+6wfJUPlj0JakzyHftEGoiZ95SVhN7C4MxhISIlzr/QONaLC2A1i 2lsw== X-Forwarded-Encrypted: i=1; AJvYcCVVRehSgRhwD+iMR74Vv1M9TcwuZxzwDCYEedo0gewh/RUB0j7UbQ7oY0lvIeCMcZ5UEqHHa8cd/hDzCDKVBqiHqgeYSqwqFWG3cBSQ X-Gm-Message-State: AOJu0Yx4btewMlbaS41rwNV9BqFyB3s7UA7GQRfYlXo6jw9ws3yVJH6O Hrrjfs4TNNQvmskh2kwGItLjNW6UidOqhPR9GQk3ZNrofFRNthw5jpbWXYsnUawfCFDrYWYr8Mw wEuyC9f8e+E+MoJahwNYtHX4aSxualf6Gxuh8juSGl0bEIxKNS9mog4E= X-Google-Smtp-Source: AGHT+IHNJtqSR8RIV1Vx2dx+6OTBBzUc7S4AfWgcQak0Ln9VFw9lIZTLPM+XV5jvTCVDDwlVjAiv2thLNm9r+3jVLpY3yfnfi/wj Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:b44:b0:365:3db4:16ee with SMTP id f4-20020a056e020b4400b003653db416eemr470650ilu.2.1708496004156; Tue, 20 Feb 2024 22:13:24 -0800 (PST) Date: Tue, 20 Feb 2024 22:13:24 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006d96200611de3986@google.com> Subject: [syzbot] [media?] INFO: task hung in cec_claim_log_addrs From: syzbot To: hverkuil-cisco@xs4all.nl, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 83d49ede4b18 Merge branch 'for-next/core' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=1719dcf8180000 kernel config: https://syzkaller.appspot.com/x/.config?x=af5c6c699e57bbb3 dashboard link: https://syzkaller.appspot.com/bug?extid=116b65a23bc791ae49a6 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16b9ffc8180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11ddc734180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/773990dc198f/disk-83d49ede.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/cf9c558cd3e8/vmlinux-83d49ede.xz kernel image: https://storage.googleapis.com/syzbot-assets/25f87616316c/Image-83d49ede.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+116b65a23bc791ae49a6@syzkaller.appspotmail.com INFO: task syz-executor398:6279 blocked for more than 143 seconds. Tainted: G B 6.8.0-rc5-syzkaller-g83d49ede4b18 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor398 state:D stack:0 pid:6279 tgid:6279 ppid:6193 flags:0x0000000d Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5400 [inline] __schedule+0x1498/0x24b4 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xb8/0x19c kernel/sched/core.c:6817 schedule_timeout+0xb8/0x348 kernel/time/timer.c:2159 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:95 __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x48/0x60 kernel/sched/completion.c:148 cec_claim_log_addrs+0x164/0x210 drivers/media/cec/core/cec-adap.c:1606 __cec_s_log_addrs+0x1238/0x18d8 drivers/media/cec/core/cec-adap.c:1920 cec_adap_s_log_addrs drivers/media/cec/core/cec-api.c:184 [inline] cec_ioctl+0x2684/0x37b0 drivers/media/cec/core/cec-api.c:528 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 INFO: task syz-executor398:6329 blocked for more than 143 seconds. Tainted: G B 6.8.0-rc5-syzkaller-g83d49ede4b18 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor398 state:D stack:0 pid:6329 tgid:6329 ppid:6197 flags:0x0000000d Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5400 [inline] __schedule+0x1498/0x24b4 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xb8/0x19c kernel/sched/core.c:6817 schedule_timeout+0xb8/0x348 kernel/time/timer.c:2159 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:95 __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x48/0x60 kernel/sched/completion.c:148 cec_claim_log_addrs+0x164/0x210 drivers/media/cec/core/cec-adap.c:1606 __cec_s_log_addrs+0x1238/0x18d8 drivers/media/cec/core/cec-adap.c:1920 cec_adap_s_log_addrs drivers/media/cec/core/cec-api.c:184 [inline] cec_ioctl+0x2684/0x37b0 drivers/media/cec/core/cec-api.c:528 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 INFO: task syz-executor398:6367 blocked for more than 143 seconds. Tainted: G B 6.8.0-rc5-syzkaller-g83d49ede4b18 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor398 state:D stack:0 pid:6367 tgid:6367 ppid:6196 flags:0x0000000d Call trace: __switch_to+0x314/0x560 arch/arm64/kernel/process.c:556 context_switch kernel/sched/core.c:5400 [inline] __schedule+0x1498/0x24b4 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xb8/0x19c kernel/sched/core.c:6817 schedule_timeout+0xb8/0x348 kernel/time/timer.c:2159 do_wait_for_common+0x30c/0x468 kernel/sched/completion.c:95 __wait_for_common kernel/sched/completion.c:116 [inline] wait_for_common kernel/sched/completion.c:127 [inline] wait_for_completion+0x48/0x60 kernel/sched/completion.c:148 cec_claim_log_addrs+0x164/0x210 drivers/media/cec/core/cec-adap.c:1606 __cec_s_log_addrs+0x1238/0x18d8 drivers/media/cec/core/cec-adap.c:1920 cec_adap_s_log_addrs drivers/media/cec/core/cec-api.c:184 [inline] cec_ioctl+0x2684/0x37b0 drivers/media/cec/core/cec-api.c:528 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:857 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 INFO: lockdep is turned off. --- 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