INFO: task syz-executor.1:24035 blocked for more than 430 seconds. Not tainted 6.2.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:0 pid:24035 ppid:23967 flags:0x00000001 Backtrace: [<817c1610>] (__schedule) from [<817c2138>] (schedule+0x5c/0xac kernel/sched/core.c:6682) r10:83d74500 r9:00000000 r8:00000002 r7:00000000 r6:ec8e5e10 r5:83d70b80 r4:83d70b80 [<817c20dc>] (schedule) from [<817c6f2c>] (rt_mutex_slowlock_block.constprop.0+0x38/0x164 kernel/locking/rtmutex.c:1557) r5:83d70b80 r4:82b25454 [<817c6ef4>] (rt_mutex_slowlock_block.constprop.0) from [<817c80f4>] (__rt_mutex_slowlock.constprop.0+0x78/0x270 kernel/locking/rtmutex.c:1625) r10:85262c40 r9:85262800 r8:ec8e5e10 r7:00000002 r6:82b25454 r5:00000000 r4:83d70b80 r3:ec8e5e10 [<817c807c>] (__rt_mutex_slowlock.constprop.0) from [<817c8398>] (__rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1661 [inline]) [<817c807c>] (__rt_mutex_slowlock.constprop.0) from [<817c8398>] (rt_mutex_slowlock kernel/locking/rtmutex.c:1690 [inline]) [<817c807c>] (__rt_mutex_slowlock.constprop.0) from [<817c8398>] (__rt_mutex_lock kernel/locking/rtmutex.c:1702 [inline]) [<817c807c>] (__rt_mutex_slowlock.constprop.0) from [<817c8398>] (__rt_mutex_lock_common kernel/locking/rtmutex_api.c:31 [inline]) [<817c807c>] (__rt_mutex_slowlock.constprop.0) from [<817c8398>] (rt_mutex_lock+0xac/0xc4 kernel/locking/rtmutex_api.c:71) r9:85262800 r8:85262c40 r7:00000001 r6:a0000013 r5:82b25454 r4:00000000 [<817c82ec>] (rt_mutex_lock) from [<80ef7878>] (i2c_adapter_lock_bus+0x14/0x18 drivers/i2c/i2c-core-base.c:827) r6:85262800 r5:00000001 r4:82b25440 [<80ef7864>] (i2c_adapter_lock_bus) from [<80ef95f4>] (i2c_lock_bus include/linux/i2c.h:793 [inline]) [<80ef7864>] (i2c_adapter_lock_bus) from [<80ef95f4>] (__i2c_lock_bus_helper drivers/i2c/i2c-core.h:44 [inline]) [<80ef7864>] (i2c_adapter_lock_bus) from [<80ef95f4>] (i2c_transfer+0x94/0x134 drivers/i2c/i2c-core-base.c:2166) [<80ef9560>] (i2c_transfer) from [<80efe790>] (i2cdev_ioctl_rdwr+0x1f8/0x234 drivers/i2c/i2c-dev.c:297) r6:00000000 r5:00000000 r4:8526280c [<80efe598>] (i2cdev_ioctl_rdwr) from [<80eff198>] (i2cdev_ioctl+0x2d4/0x34c drivers/i2c/i2c-dev.c:458) r10:83371450 r9:00000003 r8:85256cc0 r7:20000200 r6:84dc8000 r5:00000707 r4:20000200 [<80efeec4>] (i2cdev_ioctl) from [<804c8cd0>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<80efeec4>] (i2cdev_ioctl) from [<804c8cd0>] (do_vfs_ioctl fs/ioctl.c:830 [inline]) [<80efeec4>] (i2cdev_ioctl) from [<804c8cd0>] (__do_sys_ioctl fs/ioctl.c:868 [inline]) [<80efeec4>] (i2cdev_ioctl) from [<804c8cd0>] (sys_ioctl+0x110/0xa70 fs/ioctl.c:856) r6:85256cc1 r5:00000000 r4:00000707 [<804c8bc0>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xec8e5fa8 to 0xec8e5ff0) 5fa0: 00000000 00000000 00000003 00000707 20000200 00000000 5fc0: 00000000 00000000 0014c2b8 00000036 7eeba3d2 76bd36d0 7eeba544 76bd320c 5fe0: 76bd3020 76bd3010 00016f9c 0004df50 r10:00000036 r9:83d70b80 r8:80200288 r7:00000036 r6:0014c2b8 r5:00000000 r4:00000000 INFO: task syz-executor.1:24037 blocked for more than 430 seconds. Not tainted 6.2.0-rc7-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:0 pid:24037 ppid:23967 flags:0x00000001 Backtrace: [<817c1610>] (__schedule) from [<817c2138>] (schedule+0x5c/0xac kernel/sched/core.c:6682) r10:84f0fc00 r9:00000000 r8:00000002 r7:00000000 r6:ec91de10 r5:84bfd080 r4:84bfd080 [<817c20dc>] (schedule) from [<817c6f2c>] (rt_mutex_slowlock_block.constprop.0+0x38/0x164 kernel/locking/rtmutex.c:1557) r5:84bfd080 r4:82b25454 [<817c6ef4>] (rt_mutex_slowlock_block.constprop.0) from [<817c80f4>] (__rt_mutex_slowlock.constprop.0+0x78/0x270 kernel/locking/rtmutex.c:1625) r10:84f0fc00 r9:84f0f940 r8:ec91de10 r7:00000002 r6:82b25454 r5:00000000 r4:84bfd080 r3:ec91de10 [<817c807c>] (__rt_mutex_slowlock.constprop.0) from [<817c8398>] (__rt_mutex_slowlock_locked kernel/locking/rtmutex.c:1661 [inline]) [<817c807c>] (__rt_mutex_slowlock.constprop.0) from [<817c8398>] (rt_mutex_slowlock kernel/locking/rtmutex.c:1690 [inline]) [<817c807c>] (__rt_mutex_slowlock.constprop.0) from [<817c8398>] (__rt_mutex_lock kernel/locking/rtmutex.c:1702 [inline]) [<817c807c>] (__rt_mutex_slowlock.constprop.0) from [<817c8398>] (__rt_mutex_lock_common kernel/locking/rtmutex_api.c:31 [inline]) [<817c807c>] (__rt_mutex_slowlock.constprop.0) from [<817c8398>] (rt_mutex_lock+0xac/0xc4 kernel/locking/rtmutex_api.c:71) r9:84f0f940 r8:84f0fc00 r7:00000001 r6:a0000013 r5:82b25454 r4:00000000 [<817c82ec>] (rt_mutex_lock) from [<80ef7878>] (i2c_adapter_lock_bus+0x14/0x18 drivers/i2c/i2c-core-base.c:827) r6:84f0f940 r5:00000001 r4:82b25440 [<80ef7864>] (i2c_adapter_lock_bus) from [<80ef95f4>] (i2c_lock_bus include/linux/i2c.h:793 [inline]) [<80ef7864>] (i2c_adapter_lock_bus) from [<80ef95f4>] (__i2c_lock_bus_helper drivers/i2c/i2c-core.h:44 [inline]) [<80ef7864>] (i2c_adapter_lock_bus) from [<80ef95f4>] (i2c_transfer+0x94/0x134 drivers/i2c/i2c-core-base.c:2166) [<80ef9560>] (i2c_transfer) from [<80efe790>] (i2cdev_ioctl_rdwr+0x1f8/0x234 drivers/i2c/i2c-dev.c:297) r6:00000000 r5:00000000 r4:84f0f94c [<80efe598>] (i2cdev_ioctl_rdwr) from [<80eff198>] (i2cdev_ioctl+0x2d4/0x34c drivers/i2c/i2c-dev.c:458) r10:83371450 r9:00000003 r8:85256cc0 r7:20000200 r6:84dc8000 r5:00000707 r4:20000200 [<80efeec4>] (i2cdev_ioctl) from [<804c8cd0>] (vfs_ioctl fs/ioctl.c:51 [inline]) [<80efeec4>] (i2cdev_ioctl) from [<804c8cd0>] (do_vfs_ioctl fs/ioctl.c:830 [inline]) [<80efeec4>] (i2cdev_ioctl) from [<804c8cd0>] (__do_sys_ioctl fs/ioctl.c:868 [inline]) [<80efeec4>] (i2cdev_ioctl) from [<804c8cd0>] (sys_ioctl+0x110/0xa70 fs/ioctl.c:856) r6:85256cc1 r5:00000000 r4:00000707 [<804c8bc0>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xec91dfa8 to 0xec91dff0) dfa0: 00000000 00000000 00000003 00000707 20000200 00000000 dfc0: 00000000 00000000 0014c3d8 00000036 7eeba3d2 76b916d0 7eeba544 76b9120c dfe0: 76b91020 76b91010 00016f9c 0004df50 r10:00000036 r9:84bfd080 r8:80200288 r7:00000036 r6:0014c3d8 r5:00000000 r4:00000000 NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.2.0-rc7-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<817a2928>] (dump_backtrace) from [<817a2a1c>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:8240c5e0 r5:60000193 r4:81d8a418 [<817a2a04>] (show_stack) from [<817beeb0>] (__dump_stack lib/dump_stack.c:88 [inline]) [<817a2a04>] (show_stack) from [<817beeb0>] (dump_stack_lvl+0x48/0x54 lib/dump_stack.c:106) [<817bee68>] (dump_stack_lvl) from [<817beed4>] (dump_stack+0x18/0x1c lib/dump_stack.c:113) r5:00000000 r4:00000001 [<817beebc>] (dump_stack) from [<81790310>] (nmi_cpu_backtrace+0x170/0x18c lib/nmi_backtrace.c:111) [<817901a0>] (nmi_cpu_backtrace) from [<817904ac>] (nmi_trigger_cpumask_backtrace+0x180/0x228 lib/nmi_backtrace.c:62) r9:00000002 r8:8020fdd4 r7:00000000 r6:8240c5e0 r5:8240c49c r4:00000000 [<8179032c>] (nmi_trigger_cpumask_backtrace) from [<80211058>] (arch_trigger_cpumask_backtrace+0x18/0x1c arch/arm/kernel/smp.c:854) r10:00000064 r9:000cec40 r8:82404d40 r7:00007f40 r6:8268e9a8 r5:8240c5fc r4:8292d464 r3:00000001 [<80211040>] (arch_trigger_cpumask_backtrace) from [<80332c5c>] (trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]) [<80211040>] (arch_trigger_cpumask_backtrace) from [<80332c5c>] (check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]) [<80211040>] (arch_trigger_cpumask_backtrace) from [<80332c5c>] (watchdog+0x4a8/0x590 kernel/hung_task.c:377) [<803327b4>] (watchdog) from [<8026a00c>] (kthread+0xec/0x11c kernel/kthread.c:376) r10:00000000 r9:df819e4c r8:82a99e00 r7:00000000 r6:803327b4 r5:828fb980 r4:82a32d00 [<80269f20>] (kthread) from [<80200100>] (ret_from_fork+0x14/0x34 arch/arm/kernel/entry-common.S:148) Exception stack(0xdf8cdfb0 to 0xdf8cdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80269f20 r4:82a32d00 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2730 Comm: syslogd Not tainted 6.2.0-rc7-syzkaller #0 Hardware name: ARM-Versatile Express PC is at inode_needs_update_time.part.0+0x58/0x98 fs/inode.c:2041 LR is at 0x0 pc : [<804d1754>] lr : [<00000000>] psr: 800f0013 sp : ebae1e08 ip : 0b532b80 fp : ebae1e1c r10: 00004004 r9 : ebae1ef0 r8 : 85e80960 r7 : 8510b9c0 r6 : 83df3980 r5 : 85e80850 r4 : 00002241 r3 : 85e80850 r2 : 0bebc200 r1 : ebae1e20 r0 : 00000002 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none Control: 30c5387d Table: 841ea500 DAC: 00000000 Backtrace: [<804d16fc>] (inode_needs_update_time.part.0) from [<804d2c78>] (inode_needs_update_time fs/inode.c:2034 [inline]) [<804d16fc>] (inode_needs_update_time.part.0) from [<804d2c78>] (file_update_time+0x4c/0xd4 fs/inode.c:2084) r5:85e80850 r4:8510b9c0 [<804d2c2c>] (file_update_time) from [<803f7bd8>] (__generic_file_write_iter+0x5c/0x194 mm/filemap.c:3849) r6:83df3980 r5:ebae1f08 r4:00000000 [<803f7b7c>] (__generic_file_write_iter) from [<803f7d74>] (generic_file_write_iter+0x64/0x100 mm/filemap.c:3932) r10:00004004 r9:83df3980 r8:0072b4b8 r7:ebae1ef0 r6:ebae1f08 r5:85e808d8 r4:0000005b [<803f7d10>] (generic_file_write_iter) from [<804b1a34>] (call_write_iter include/linux/fs.h:2189 [inline]) [<803f7d10>] (generic_file_write_iter) from [<804b1a34>] (new_sync_write fs/read_write.c:491 [inline]) [<803f7d10>] (generic_file_write_iter) from [<804b1a34>] (vfs_write+0x2c4/0x3bc fs/read_write.c:584) r7:ebae1f68 r6:0000005b r5:8510b9c0 r4:803f7d10 [<804b1770>] (vfs_write) from [<804b1c94>] (ksys_write+0x68/0xec fs/read_write.c:637) r10:00000004 r9:83df3980 r8:80200288 r7:00000000 r6:000119bb r5:8510b9c0 r4:8510b9c0 [<804b1c2c>] (ksys_write) from [<804b1d28>] (__do_sys_write fs/read_write.c:649 [inline]) [<804b1c2c>] (ksys_write) from [<804b1d28>] (sys_write+0x10/0x14 fs/read_write.c:646) r7:00000004 r6:76f8a080 r5:0072b4b8 r4:00000003 [<804b1d18>] (sys_write) from [<80200060>] (ret_fast_syscall+0x0/0x1c arch/arm/mm/proc-v7.S:66) Exception stack(0xebae1fa8 to 0xebae1ff0) 1fa0: 00000003 0072b4b8 00000003 0072b4b8 0000005b 00000000 1fc0: 00000003 0072b4b8 76f8a080 00000004 000d6c84 000d6cb0 000d6c90 7e86ec9c 1fe0: 000d63bc 7e86ebb0 00019aa8 76eae7bc