Hello, syzbot found the following issue on: HEAD commit: cb7cbaae7fd9 Merge tag 'drm-next-2022-03-25' of git://anon.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=135a5bed700000 kernel config: https://syzkaller.appspot.com/x/.config?x=9e6050011f4821d6 dashboard link: https://syzkaller.appspot.com/bug?extid=baf0286916837266ff0e compiler: aarch64-linux-gnu-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+baf0286916837266ff0e@xxxxxxxxxxxxxxxxxxxxxxxxx BUG: scheduling while atomic: syz-executor.1/23656/0x00000101 Modules linked in: CPU: 1 PID: 23656 Comm: syz-executor.1 Not tainted 5.17.0-syzkaller-10734-gcb7cbaae7fd9 #0 Hardware name: linux,dummy-virt (DT) Call trace: dump_backtrace.part.0+0xcc/0xe0 arch/arm64/kernel/stacktrace.c:184 dump_backtrace arch/arm64/kernel/stacktrace.c:190 [inline] show_stack+0x18/0x6c arch/arm64/kernel/stacktrace.c:191 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x68/0x84 lib/dump_stack.c:106 dump_stack+0x18/0x34 lib/dump_stack.c:113 __schedule_bug+0x60/0x80 kernel/sched/core.c:5617 schedule_debug kernel/sched/core.c:5644 [inline] __schedule+0x74c/0x7f0 kernel/sched/core.c:6273 schedule+0x54/0xd0 kernel/sched/core.c:6454 rwsem_down_write_slowpath+0x29c/0x5a0 kernel/locking/rwsem.c:1142 __down_write_common kernel/locking/rwsem.c:1259 [inline] __down_write_common kernel/locking/rwsem.c:1256 [inline] __down_write kernel/locking/rwsem.c:1268 [inline] down_write+0x58/0x64 kernel/locking/rwsem.c:1515 inode_lock include/linux/fs.h:778 [inline] simple_recursive_removal+0x124/0x270 fs/libfs.c:288 debugfs_remove fs/debugfs/inode.c:732 [inline] debugfs_remove+0x5c/0x80 fs/debugfs/inode.c:726 blk_release_queue+0x7c/0xf0 block/blk-sysfs.c:784 kobject_cleanup lib/kobject.c:705 [inline] kobject_release lib/kobject.c:736 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x98/0x114 lib/kobject.c:753 blk_put_queue+0x14/0x20 block/blk-core.c:270 blkg_free.part.0+0x54/0x80 block/blk-cgroup.c:86 blkg_free block/blk-cgroup.c:78 [inline] __blkg_release+0x44/0x70 block/blk-cgroup.c:102 rcu_do_batch kernel/rcu/tree.c:2535 [inline] rcu_core+0x324/0x590 kernel/rcu/tree.c:2786 rcu_core_si+0x10/0x20 kernel/rcu/tree.c:2803 _stext+0x124/0x2a0 do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline] invoke_softirq kernel/softirq.c:439 [inline] __irq_exit_rcu+0xe4/0x100 kernel/softirq.c:637 irq_exit_rcu+0x10/0x1c kernel/softirq.c:649 __el1_irq arch/arm64/kernel/entry-common.c:459 [inline] el1_interrupt+0x38/0x64 arch/arm64/kernel/entry-common.c:473 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:478 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:577 walk_stackframe arch/arm64/kernel/stacktrace.c:153 [inline] arch_stack_walk+0x68/0x280 arch/arm64/kernel/stacktrace.c:211 stack_trace_save+0x50/0x80 kernel/stacktrace.c:122 kasan_save_stack+0x2c/0x5c mm/kasan/common.c:38 kasan_set_track+0x2c/0x40 mm/kasan/common.c:45 kasan_set_free_info+0x20/0x30 mm/kasan/tags.c:36 ____kasan_slab_free.constprop.0+0x190/0x1e4 mm/kasan/common.c:366 __kasan_slab_free+0x10/0x1c mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:200 [inline] slab_free_hook mm/slub.c:1728 [inline] slab_free_freelist_hook+0xc4/0x230 mm/slub.c:1754 slab_free mm/slub.c:3510 [inline] kmem_cache_free+0xb0/0x3d4 mm/slub.c:3527 put_io_context+0xbc/0xe0 block/blk-ioc.c:213 exit_io_context+0xdc/0xf0 block/blk-ioc.c:229 do_exit+0x52c/0x930 kernel/exit.c:827 do_group_exit+0x34/0xa0 kernel/exit.c:924 __do_sys_exit_group kernel/exit.c:935 [inline] __se_sys_exit_group kernel/exit.c:933 [inline] __arm64_sys_exit_group+0x18/0x20 kernel/exit.c:933 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x48/0x114 arch/arm64/kernel/syscall.c:52 el0_svc_common.constprop.0+0x44/0xec arch/arm64/kernel/syscall.c:142 do_el0_svc+0x6c/0x84 arch/arm64/kernel/syscall.c:181 el0_svc+0x44/0xb0 arch/arm64/kernel/entry-common.c:616 el0t_64_sync_handler+0x1a4/0x1b0 arch/arm64/kernel/entry-common.c:634 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:581 --- 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
