From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f77.google.com (mail-ot1-f77.google.com [209.85.210.77]) (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 438F52236E5 for ; Sun, 14 Dec 2025 05:55:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.77 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765691728; cv=none; b=fyU22/loO8vZIXXYhC0uhR2vOs/UM23yhwS2hsvG/FUVousI3DLW2O7n4y9jLfpYm7DBngRM7FkQM0B2+qz3TKW+rIiUlQxgNOBfEF7YVIfuWJN2yxR4ftZFiTWDvpfLGV5ELaFuWKOQWjw8dUVzglpeqm8XLb0CKHXXn+JyIjE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765691728; c=relaxed/simple; bh=PaIS9z16vJXFjFue2thBFXiSBuTFqUCSwMQX1/Ply0o=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=I1unRWQPnoAY5Hzlgsd7Z/DKb6zb5iq1dgsf1ZxvMDVSfmARRGZl4AVgbS4BCNt7PA8v7uPRV1i2mIKsHlJ4h2w5NGlHj7e0SKLZKwE1oqD2FPo6yzly4q5XJ9YCc6rmKO4zOTXNCyMcxVuiAsi2ATVL5AOrZITsXhfOk0qtjKc= 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=209.85.210.77 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-ot1-f77.google.com with SMTP id 46e09a7af769-7c7611165b3so2838860a34.2 for ; Sat, 13 Dec 2025 21:55:25 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1765691725; x=1766296525; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=35wGLNA5UaaKChjkJVUugoGDzifP8JJlU2D+v+LykM0=; b=oCBiiHQ6y0xgth7L1LPMzzo9bCWHldZNE5mhI28paCDPqKj53kXbROpd+rAzYrWNg9 NnZPgEz5aWi25OhysEVOgaIJpxhp4lzhfQxf62LkynR8QtQ+w/xWca+K0XUUpzTFjnG1 ycI2n91yV9NN7H733MzxM4w1cJr0vHyziF2adjXNyx3KUWxNiGm/RGJj+EJvvvDmbEXi M4ej61vKhxrXxHfkuA5adOw/TEGGRjOvsIcXrDedAK42oKbfV+7mj8ilBfPjf/UNsV0y I54HbM6pN3yhNp3zLH6TlLDL8JVbYiIpgNUcyLrbIZwD2hmgZIARIy2s0ygjSopRnezW LxNQ== X-Forwarded-Encrypted: i=1; AJvYcCUfuuAwfDzodAsLSRyXLVweDDhr+6c7eSTLs7pIckgBjvgIJPj9zjt9nxtJ8aSoRcfDYMJS1n4WYDe80oU=@vger.kernel.org X-Gm-Message-State: AOJu0Yy7YnlDu4S6oP7o63Zdg3dPucPXLq9u7b+CfKLMvGPlgtRxgduV UEfTJzn4vxFQQSJKLs1uHEXLshGLlYGn2u+jDmP3IQYdx50up5um2Lf5r5mLhjWyLItOrVIt/sR 0+UBU746khOsSDfpUbAekN8saJ0Sw4IjkL/rFFJUABGAs8lUtyaZGHq6tHes= X-Google-Smtp-Source: AGHT+IGMUxw1Lk/V8YAoq4zpHDAtK0nkIT8g8I7bBGZb/3tYRUj4kBB91ghdZnLMPEnoI/rdteEDc+etCUM+EIJ9HiQdIz4xnSHU Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:178e:b0:659:9a49:90ba with SMTP id 006d021491bc7-65b451e3be1mr3143845eaf.57.1765691725290; Sat, 13 Dec 2025 21:55:25 -0800 (PST) Date: Sat, 13 Dec 2025 21:55:25 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <693e514d.050a0220.326d2b.0011.GAE@google.com> Subject: [syzbot] [gpio?] upstream test error: BUG: soft lockup in led_heartbeat_function From: syzbot To: brgl@kernel.org, linusw@kernel.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: c9b47175e913 Merge tag 'i2c-for-6.19-rc1' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=110ada1a580000 kernel config: https://syzkaller.appspot.com/x/.config?x=4d5b48b67d177d90 dashboard link: https://syzkaller.appspot.com/bug?extid=6ff4620809efa1842f1a compiler: arm-linux-gnueabi-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/98a89b9f34e4/non_bootable_disk-c9b47175.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/268e383652dc/vmlinux-c9b47175.xz kernel image: https://storage.googleapis.com/syzbot-assets/9cb40d06afc2/zImage-c9b47175.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+6ff4620809efa1842f1a@syzkaller.appspotmail.com watchdog: BUG: soft lockup - CPU#1 stuck for 430s! [swapper/1:0] Modules linked in: CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 PREEMPT Hardware name: ARM-Versatile Express PC is at arch_spin_lock arch/arm/include/asm/spinlock.h:74 [inline] PC is at do_raw_spin_lock include/linux/spinlock.h:187 [inline] PC is at __raw_spin_lock include/linux/spinlock_api_smp.h:134 [inline] PC is at _raw_spin_lock+0x40/0x58 kernel/locking/spinlock.c:154 LR is at __raw_spin_lock include/linux/spinlock_api_smp.h:132 [inline] LR is at _raw_spin_lock+0x18/0x58 kernel/locking/spinlock.c:154 pc : [<81abbc34>] lr : [<81abbc0c>] psr: 80000113 sp : df805d68 ip : df805d68 fp : df805d7c r10: 81c05450 r9 : 8415b640 r8 : 84046e88 r7 : 8415b768 r6 : 00000000 r5 : 00000001 r4 : 8415b768 r3 : 0000345e r2 : 0000345f r1 : 00000000 r0 : 00000001 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 85216dc0 DAC: 00000000 Call trace: frame pointer underflow [<81abbbf4>] (_raw_spin_lock) from [<809c77ac>] (class_raw_spinlock_constructor include/linux/spinlock.h:535 [inline]) [<81abbbf4>] (_raw_spin_lock) from [<809c77ac>] (gpio_mmio_set+0x44/0x80 drivers/gpio/gpio-mmio.c:234) r5:00000001 r4:8415b640 [<809c7768>] (gpio_mmio_set) from [<809b7f68>] (gpiochip_set+0x1c/0x44 drivers/gpio/gpiolib.c:2919) r7:00000000 r6:00000000 r5:00000000 r4:840e1840 [<809b7f4c>] (gpiochip_set) from [<809ba830>] (gpiod_set_raw_value_commit+0x78/0x218 drivers/gpio/gpiolib.c:3662) [<809ba7b8>] (gpiod_set_raw_value_commit) from [<809bc0d0>] (gpiod_set_value_nocheck+0x44/0x58 drivers/gpio/gpiolib.c:3881) r10:81c05450 r9:df805ebc r8:00000102 r7:ffffa9af r6:00000035 r5:00000000 r4:840e1840 [<809bc08c>] (gpiod_set_value_nocheck) from [<809bc120>] (gpiod_set_value+0x3c/0x88 drivers/gpio/gpiolib.c:3903) [<809bc0e4>] (gpiod_set_value) from [<809cc8bc>] (gpio_led_set+0x5c/0x60 drivers/leds/leds-gpio.c:57) r5:83fc1044 r4:83fc1044 [<809cc860>] (gpio_led_set) from [<809ca154>] (__led_set_brightness drivers/leds/led-core.c:52 [inline]) [<809cc860>] (gpio_led_set) from [<809ca154>] (led_set_brightness_nopm drivers/leds/led-core.c:335 [inline]) [<809cc860>] (gpio_led_set) from [<809ca154>] (led_set_brightness_nosleep+0x38/0x44 drivers/leds/led-core.c:369) r5:83fc1044 r4:84b62c4c [<809ca11c>] (led_set_brightness_nosleep) from [<809cd1b8>] (led_heartbeat_function+0x84/0x144 drivers/leds/trigger/ledtrig-heartbeat.c:90) [<809cd134>] (led_heartbeat_function) from [<80326f70>] (call_timer_fn+0x30/0x220 kernel/time/timer.c:1748) r7:ffffa9af r6:809cd134 r5:84b62c4c r4:83216000 [<80326f40>] (call_timer_fn) from [<80327424>] (expire_timers kernel/time/timer.c:1799 [inline]) [<80326f40>] (call_timer_fn) from [<80327424>] (__run_timers+0x2c4/0x3f8 kernel/time/timer.c:2373) r9:df805ebc r8:ffffa9af r7:00000000 r6:809cd134 r5:dddd9f00 r4:84b62c4c [<80327160>] (__run_timers) from [<803275c0>] (__run_timer_base kernel/time/timer.c:2385 [inline]) [<80327160>] (__run_timers) from [<803275c0>] (__run_timer_base kernel/time/timer.c:2377 [inline]) [<80327160>] (__run_timers) from [<803275c0>] (run_timer_base+0x68/0x78 kernel/time/timer.c:2394) r10:83216000 r9:82804d80 r8:00000102 r7:00000001 r6:00000082 r5:00000002 r4:dddd9f00 [<80327558>] (run_timer_base) from [<803275ec>] (run_timer_softirq+0x1c/0x34 kernel/time/timer.c:2404) r4:82804084 [<803275d0>] (run_timer_softirq) from [<8025b55c>] (handle_softirqs+0x140/0x458 kernel/softirq.c:622) [<8025b41c>] (handle_softirqs) from [<8025b9d0>] (__do_softirq kernel/softirq.c:656 [inline]) [<8025b41c>] (handle_softirqs) from [<8025b9d0>] (invoke_softirq kernel/softirq.c:496 [inline]) [<8025b41c>] (handle_softirqs) from [<8025b9d0>] (__irq_exit_rcu+0x110/0x1d0 kernel/softirq.c:723) r10:00000000 r9:83216000 r8:00000000 r7:df865e08 r6:82443ff8 r5:8247f12c r4:83216000 [<8025b8c0>] (__irq_exit_rcu) from [<8025bd48>] (irq_exit+0x10/0x18 kernel/softirq.c:751) r5:8247f12c r4:826c3a9c [<8025bd38>] (irq_exit) from [<81aad6a4>] (generic_handle_arch_irq+0x7c/0x80 kernel/irq/handle.c:295) [<81aad628>] (generic_handle_arch_irq) from [<81a7d654>] (call_with_stack+0x1c/0x20 arch/arm/lib/call_with_stack.S:40) r9:83216000 r8:84046e88 r7:df865e3c r6:ffffffff r5:60000013 r4:809c7fac [<81a7d638>] (call_with_stack) from [<80200bec>] (__irq_svc+0x8c/0xbc arch/arm/kernel/entry-armv.S:228) Exception stack(0xdf865e08 to 0xdf865e50) 5e00: e0299008 0000000d 0000345e 00000000 e0299008 0000000d 5e20: 00000001 8415b768 84046e88 8415b640 00000000 df865e6c df865e58 df865e58 5e40: 809c7fa8 809c7fac 60000013 ffffffff [<809c7f8c>] (gpio_mmio_write32) from [<809c77cc>] (gpio_mmio_set+0x64/0x80 drivers/gpio/gpio-mmio.c:241) r5:00000008 r4:8415b640 [<809c7768>] (gpio_mmio_set) from [<809b7f68>] (gpiochip_set+0x1c/0x44 drivers/gpio/gpiolib.c:2919) r7:00000001 r6:00000000 r5:00000003 r4:840e187c [<809b7f4c>] (gpiochip_set) from [<809ba830>] (gpiod_set_raw_value_commit+0x78/0x218 drivers/gpio/gpiolib.c:3662) [<809ba7b8>] (gpiod_set_raw_value_commit) from [<809bc0d0>] (gpiod_set_value_nocheck+0x44/0x58 drivers/gpio/gpiolib.c:3881) r10:00000000 r9:00000000 r8:00000001 r7:ddde24c0 r6:83e7a298 r5:00000001 r4:840e187c [<809bc08c>] (gpiod_set_value_nocheck) from [<809bc120>] (gpiod_set_value+0x3c/0x88 drivers/gpio/gpiolib.c:3903) [<809bc0e4>] (gpiod_set_value) from [<809cc8bc>] (gpio_led_set+0x5c/0x60 drivers/leds/leds-gpio.c:57) r5:000000ff r4:83fc1314 [<809cc860>] (gpio_led_set) from [<809ca1e4>] (__led_set_brightness drivers/leds/led-core.c:52 [inline]) [<809cc860>] (gpio_led_set) from [<809ca1e4>] (led_set_brightness_nopm drivers/leds/led-core.c:335 [inline]) [<809cc860>] (gpio_led_set) from [<809ca1e4>] (led_set_brightness_nosleep drivers/leds/led-core.c:369 [inline]) [<809cc860>] (gpio_led_set) from [<809ca1e4>] (led_set_brightness+0x84/0x90 drivers/leds/led-core.c:328) r5:000000ff r4:83fc1314 [<809ca160>] (led_set_brightness) from [<809cbd64>] (led_trigger_event drivers/leds/led-triggers.c:420 [inline]) [<809ca160>] (led_set_brightness) from [<809cbd64>] (led_trigger_event+0x40/0x58 drivers/leds/led-triggers.c:408) r5:000000ff r4:83fc1314 [<809cbd24>] (led_trigger_event) from [<809cd3c0>] (ledtrig_cpu+0xac/0xf4 drivers/leds/trigger/ledtrig-cpu.c:86) r7:ddde24c0 r6:00000002 r5:82b15cd8 r4:000001fd [<809cd314>] (ledtrig_cpu) from [<80227a38>] (arch_cpu_idle_exit+0x14/0x18 arch/arm/kernel/process.c:98) r9:00000000 r8:00000001 r7:8280c710 r6:83216000 r5:8280c6d0 r4:00000001 [<80227a24>] (arch_cpu_idle_exit) from [<802b158c>] (do_idle+0x5c/0x2d8 kernel/sched/idle.c:334) [<802b1530>] (do_idle) from [<802b1b38>] (cpu_startup_entry+0x30/0x34 kernel/sched/idle.c:430) r10:00000000 r9:414fc0f0 r8:80003000 r7:82a7b4a4 r6:83216000 r5:00000001 r4:00000092 [<802b1b08>] (cpu_startup_entry) from [<8022f360>] (secondary_start_kernel+0x128/0x194 arch/arm/kernel/smp.c:478) [<8022f238>] (secondary_start_kernel) from [<80220094>] (__enable_mmu+0x0/0xc arch/arm/kernel/head.S:446) r7:82a7b4a4 r6:30c0387d r5:00000000 r4:830b7bc0 Sending NMI from CPU 1 to CPUs 0: --- This report is generated by a bot. 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