INFO: task syz-executor.3:8499 can't die for more than 143 seconds. task:syz-executor.3 state:R running task stack:23544 pid: 8499 ppid: 18637 flags:0x00104006 Call Trace: context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881 reclaim_throttle+0x489/0x5e0 mm/vmscan.c:1072 shrink_node+0x1410/0x1eb0 mm/vmscan.c:3324 shrink_zones mm/vmscan.c:3485 [inline] do_try_to_free_pages+0x491/0x1620 mm/vmscan.c:3541 try_to_free_pages+0x29f/0x750 mm/vmscan.c:3776 __perform_reclaim mm/page_alloc.c:4603 [inline] __alloc_pages_direct_reclaim mm/page_alloc.c:4624 [inline] __alloc_pages_slowpath.constprop.0+0xa9e/0x2080 mm/page_alloc.c:5014 __alloc_pages+0x412/0x500 mm/page_alloc.c:5389 alloc_pages+0x1a7/0x300 mm/mempolicy.c:2192 __get_free_pages+0x8/0x40 mm/page_alloc.c:5425 kasan_populate_vmalloc_pte mm/kasan/shadow.c:271 [inline] kasan_populate_vmalloc_pte+0x25/0x160 mm/kasan/shadow.c:262 apply_to_pte_range mm/memory.c:2518 [inline] apply_to_pmd_range mm/memory.c:2562 [inline] apply_to_pud_range mm/memory.c:2598 [inline] apply_to_p4d_range mm/memory.c:2634 [inline] __apply_to_page_range+0x694/0x1080 mm/memory.c:2668 alloc_vmap_area+0xa7a/0x1dc0 mm/vmalloc.c:1569 __get_vm_area_node.constprop.0+0x128/0x380 mm/vmalloc.c:2434 get_vm_area_caller mm/vmalloc.c:2477 [inline] vmap+0x130/0x320 mm/vmalloc.c:2768 relay_alloc_buf kernel/relay.c:129 [inline] relay_create_buf kernel/relay.c:165 [inline] relay_open_buf.part.0+0x4b2/0xc00 kernel/relay.c:387 relay_open_buf kernel/relay.c:384 [inline] relay_open kernel/relay.c:520 [inline] relay_open+0x4fb/0xa00 kernel/relay.c:477 do_blk_trace_setup+0x4c3/0xc80 kernel/trace/blktrace.c:549 __blk_trace_setup+0xca/0x180 kernel/trace/blktrace.c:589 blk_trace_setup+0x43/0x60 kernel/trace/blktrace.c:607 sg_ioctl_common drivers/scsi/sg.c:1123 [inline] sg_ioctl+0x257/0x2780 drivers/scsi/sg.c:1165 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f6a71703ae9 RSP: 002b:00007f6a6ec79188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f6a71816f60 RCX: 00007f6a71703ae9 RDX: 0000000020000100 RSI: 00000000c0481273 RDI: 0000000000000004 RBP: 00007f6a7175df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff66b3cf6f R14: 00007f6a6ec79300 R15: 0000000000022000 INFO: task syz-executor.3:8507 can't die for more than 144 seconds. task:syz-executor.3 state:D stack:26112 pid: 8507 ppid: 18637 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:680 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740 blk_trace_remove+0x1e/0x40 kernel/trace/blktrace.c:364 sg_ioctl_common drivers/scsi/sg.c:1131 [inline] sg_ioctl+0x486/0x2780 drivers/scsi/sg.c:1165 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f6a71703ae9 RSP: 002b:00007f6a6ec58188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f6a71817020 RCX: 00007f6a71703ae9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004 RBP: 00007f6a7175df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff66b3cf6f R14: 00007f6a6ec58300 R15: 0000000000022000 INFO: task syz-executor.3:8507 blocked for more than 145 seconds. Not tainted 5.16.0-rc2-next-20211125-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:26112 pid: 8507 ppid: 18637 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:680 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740 blk_trace_remove+0x1e/0x40 kernel/trace/blktrace.c:364 sg_ioctl_common drivers/scsi/sg.c:1131 [inline] sg_ioctl+0x486/0x2780 drivers/scsi/sg.c:1165 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f6a71703ae9 RSP: 002b:00007f6a6ec58188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f6a71817020 RCX: 00007f6a71703ae9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004 RBP: 00007f6a7175df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff66b3cf6f R14: 00007f6a6ec58300 R15: 0000000000022000 INFO: task syz-executor.3:8545 can't die for more than 145 seconds. task:syz-executor.3 state:D stack:29592 pid: 8545 ppid: 18637 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:680 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740 blk_trace_setup+0x2f/0x60 kernel/trace/blktrace.c:606 sg_ioctl_common drivers/scsi/sg.c:1123 [inline] sg_ioctl+0x257/0x2780 drivers/scsi/sg.c:1165 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f6a71703ae9 RSP: 002b:00007f6a6ec16188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f6a718171a0 RCX: 00007f6a71703ae9 RDX: 0000000020000100 RSI: 00000000c0481273 RDI: 0000000000000004 RBP: 00007f6a7175df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff66b3cf6f R14: 00007f6a6ec16300 R15: 0000000000022000 INFO: task syz-executor.3:8545 blocked for more than 146 seconds. Not tainted 5.16.0-rc2-next-20211125-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:29592 pid: 8545 ppid: 18637 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:680 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740 blk_trace_setup+0x2f/0x60 kernel/trace/blktrace.c:606 sg_ioctl_common drivers/scsi/sg.c:1123 [inline] sg_ioctl+0x257/0x2780 drivers/scsi/sg.c:1165 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f6a71703ae9 RSP: 002b:00007f6a6ec16188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f6a718171a0 RCX: 00007f6a71703ae9 RDX: 0000000020000100 RSI: 00000000c0481273 RDI: 0000000000000004 RBP: 00007f6a7175df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff66b3cf6f R14: 00007f6a6ec16300 R15: 0000000000022000 INFO: task syz-executor.5:8513 can't die for more than 146 seconds. task:syz-executor.5 state:D stack:28184 pid: 8513 ppid: 16669 flags:0x00104004 Call Trace: context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:680 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740 blk_trace_remove+0x1e/0x40 kernel/trace/blktrace.c:364 sg_ioctl_common drivers/scsi/sg.c:1131 [inline] sg_ioctl+0x486/0x2780 drivers/scsi/sg.c:1165 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f01a6a9dae9 RSP: 002b:00007f01a4013188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f01a6bb0f60 RCX: 00007f01a6a9dae9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004 RBP: 00007f01a6af7f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffcf1762ef R14: 00007f01a4013300 R15: 0000000000022000 INFO: task syz-executor.5:8513 blocked for more than 146 seconds. Not tainted 5.16.0-rc2-next-20211125-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:28184 pid: 8513 ppid: 16669 flags:0x00104004 Call Trace: context_switch kernel/sched/core.c:4983 [inline] __schedule+0xab2/0x4d90 kernel/sched/core.c:6293 schedule+0xd2/0x260 kernel/sched/core.c:6366 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6425 __mutex_lock_common kernel/locking/mutex.c:680 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740 blk_trace_remove+0x1e/0x40 kernel/trace/blktrace.c:364 sg_ioctl_common drivers/scsi/sg.c:1131 [inline] sg_ioctl+0x486/0x2780 drivers/scsi/sg.c:1165 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f01a6a9dae9 RSP: 002b:00007f01a4013188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f01a6bb0f60 RCX: 00007f01a6a9dae9 RDX: 0000000000000000 RSI: 0000000000001276 RDI: 0000000000000004 RBP: 00007f01a6af7f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffcf1762ef R14: 00007f01a4013300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/27: #0: ffffffff8bb83220 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458 1 lock held by khugepaged/33: #0: ffffffff8bc6a1e8 (lock#5){+.+.}-{3:3}, at: __lru_add_drain_all+0x65/0x760 mm/swap.c:798 3 locks held by kworker/0:2/135: 1 lock held by systemd-journal/2961: #0: ffff88807edf0f88 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] (mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 2 locks held by systemd-udevd/2968: #0: ffff88801aaddf48 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] #0: ffff88801aaddf48 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x159e/0x21c0 mm/filemap.c:3184 #1: ffffffff8bca94a0 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:4600 [inline] #1: ffffffff8bca94a0 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:4624 [inline] #1: ffffffff8bca94a0 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x9f5/0x2080 mm/page_alloc.c:5014 2 locks held by systemd-timesyn/3055: #0: ffff88801aaddf48 (mapping.invalidate_lock ){++++}-{3:3} , at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] , at: filemap_fault+0x159e/0x21c0 mm/filemap.c:3184 #1: ffffffff8bcaa0a8 (pcpu_drain_mutex){+.+.}-{3:3}, at: __drain_all_pages+0x4f/0x6c0 mm/page_alloc.c:3196 1 lock held by cron/6209: #0: ffff88801aaddf48 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] #0: ffff88801aaddf48 (mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 1 lock held by in:imklog/6220: #0: ffff88801aaddf48 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] #0: ffff88801aaddf48 (mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 2 locks held by agetty/6370: #0: ffff888022fed098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:252 #1: ffffc900028ac2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcf0/0x1230 drivers/tty/n_tty.c:2113 1 lock held by syz-fuzzer/6505: #0: ffff888076e03768 ( mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 1 lock held by syz-fuzzer/6506: #0: ffff888076e03768 ( mapping.invalidate_lock ){++++}-{3:3} , at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] , at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 1 lock held by syz-fuzzer/6510: #0: ffff888076e03768 ( mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 1 lock held by syz-executor.1/11146: #0: ffff88814aefe650 (sb_internal){.+.+}-{0:0}, at: evict+0x2ed/0x6b0 fs/inode.c:639 2 locks held by syz-executor.2/21404: #0: ffff8880147f20e0 (&type->s_umount_key#70){++++}-{3:3}, at: deactivate_super+0xa5/0xd0 fs/super.c:365 #1: ffffffff8bb8cc28 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline] #1: ffffffff8bb8cc28 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4fa/0x620 kernel/rcu/tree_exp.h:839 1 lock held by syz-executor.2/21835: #0: ffff88814aefe650 (sb_internal){.+.+}-{0:0}, at: evict+0x2ed/0x6b0 fs/inode.c:639 1 lock held by systemd-udevd/23721: #0: ffff88807eecc160 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] #0: ffff88807eecc160 (mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 1 lock held by systemd-udevd/23735: #0: ffff88801aaddf48 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] #0: ffff88801aaddf48 (mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 1 lock held by systemd-udevd/23776: #0: ffff88801aaddf48 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] #0: ffff88801aaddf48 (mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 1 lock held by systemd-udevd/25077: #0: ffff88807eecc160 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] #0: ffff88807eecc160 (mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 2 locks held by systemd-udevd/25705: #0: ffff88807eecc160 ( mapping.invalidate_lock ){++++}-{3:3} , at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] , at: filemap_fault+0x159e/0x21c0 mm/filemap.c:3184 #1: ffffffff8bca94a0 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:4600 [inline] #1: ffffffff8bca94a0 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:4624 [inline] #1: ffffffff8bca94a0 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x9f5/0x2080 mm/page_alloc.c:5014 1 lock held by systemd-udevd/26507: #0: ffff88807eecc160 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] #0: ffff88807eecc160 (mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 1 lock held by systemd-udevd/26590: #0: ffff88807eecc160 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:838 [inline] #0: ffff88807eecc160 (mapping.invalidate_lock){++++}-{3:3}, at: page_cache_ra_unbounded+0x1ae/0x780 mm/readahead.c:194 2 locks held by kworker/1:2/29103: #0: ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline] ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline] ffff888010c66538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2270 #1: ffffc90002dc7db0 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2274 7 locks held by kworker/u4:5/29184: #0: ffff888011913938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888011913938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888011913938 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888011913938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline] #0: ffff888011913938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline] #0: ffff888011913938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2270 #1: ffffc900058afdb0 (net_cleanup_work ){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2274 #2: ffffffff8d2f8850 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9b/0xb00 net/core/net_namespace.c:555 #3: ffffffff8d30cce8 (rtnl_mutex){+.+.}-{3:3}, at: ip6gre_exit_batch_net+0x88/0x760 net/ipv6/ip6_gre.c:1626 #4: ffff8880b9d39d58 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2b/0x120 kernel/sched/core.c:489 #5: ffff8880b9d279c8 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x3e7/0x4e0 kernel/sched/psi.c:891 #6: ffffffff8bb83220 (rcu_read_lock){....}-{1:2}, at: list_lru_count_one+0x2f/0x370 mm/list_lru.c:183 3 locks held by syz-executor.3/8499: #0: ffff88801b1d19f8 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0x2f/0x60 kernel/trace/blktrace.c:606 #1: ffffffff8bbe4508 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open kernel/relay.c:518 [inline] #1: ffffffff8bbe4508 (relay_channels_mutex){+.+.}-{3:3}, at: relay_open+0x389/0xa00 kernel/relay.c:477 #2: ffffffff8bca94a0 (fs_reclaim){+.+.}-{0:0}, at: __perform_reclaim mm/page_alloc.c:4600 [inline] #2: ffffffff8bca94a0 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_direct_reclaim mm/page_alloc.c:4624 [inline] #2: ffffffff8bca94a0 (fs_reclaim){+.+.}-{0:0}, at: __alloc_pages_slowpath.constprop.0+0x9f5/0x2080 mm/page_alloc.c:5014 1 lock held by syz-executor.3/8507: #0: ffff88801b1d19f8 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x1e/0x40 kernel/trace/blktrace.c:364 1 lock held by syz-executor.3/8545: #0: ffff88801b1d19f8 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_setup+0x2f/0x60 kernel/trace/blktrace.c:606 1 lock held by syz-executor.5/8513: #0: ffff88801b1d19f8 (&q->debugfs_mutex){+.+.}-{3:3}, at: blk_trace_remove+0x1e/0x40 kernel/trace/blktrace.c:364 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc2-next-20211125-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:256 [inline] watchdog+0xcb7/0xed0 kernel/hung_task.c:413 kthread+0x405/0x4f0 kernel/kthread.c:345 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 18541 Comm: kworker/u4:1 Not tainted 5.16.0-rc2-next-20211125-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_nc_worker RIP: 0010:check_preemption_disabled+0x43/0x170 lib/smp_processor_id.c:56 Code: b3 76 65 8b 1d ae f8 b3 76 81 e3 ff ff ff 7f 31 ff 89 de 0f 1f 44 00 00 85 db 74 11 0f 1f 44 00 00 44 89 e0 5b 5d 41 5c 41 5d <41> 5e c3 0f 1f 44 00 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de 0f RSP: 0000:ffffc90003d0fbd8 EFLAGS: 00000002 RAX: 0000000000000000 RBX: ffff888086289d40 RCX: 1ffffffff2099f20 RDX: 0000000000000000 RSI: 0000000000000201 RDI: 0000000000000000 RBP: 00000000016340b2 R08: 0000000000000000 R09: ffff88808024d8c3 R10: ffffffff817e287d R11: 0000000000000000 R12: ffffffff88ea72b5 R13: ffff888039c44c80 R14: dffffc0000000000 R15: ffffffff88ea7510 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f862be882d9 CR3: 000000000b88e000 CR4: 00000000003506f0 Call Trace: lockdep_recursion_finish kernel/locking/lockdep.c:438 [inline] lockdep_softirqs_on+0x221/0x340 kernel/locking/lockdep.c:4440 __local_bh_enable_ip+0xcd/0x120 kernel/softirq.c:371 spin_unlock_bh include/linux/spinlock.h:399 [inline] batadv_nc_purge_paths+0x2a5/0x3a0 net/batman-adv/network-coding.c:475 batadv_nc_worker+0x930/0xfa0 net/batman-adv/network-coding.c:726 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2299 worker_thread+0x658/0x11f0 kernel/workqueue.c:2446 kthread+0x405/0x4f0 kernel/kthread.c:345 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess): 0: b3 76 mov $0x76,%bl 2: 65 8b 1d ae f8 b3 76 mov %gs:0x76b3f8ae(%rip),%ebx # 0x76b3f8b7 9: 81 e3 ff ff ff 7f and $0x7fffffff,%ebx f: 31 ff xor %edi,%edi 11: 89 de mov %ebx,%esi 13: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 18: 85 db test %ebx,%ebx 1a: 74 11 je 0x2d 1c: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 21: 44 89 e0 mov %r12d,%eax 24: 5b pop %rbx 25: 5d pop %rbp 26: 41 5c pop %r12 28: 41 5d pop %r13 * 2a: 41 5e pop %r14 <-- trapping instruction 2c: c3 retq 2d: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 32: 9c pushfq 33: 5b pop %rbx 34: 81 e3 00 02 00 00 and $0x200,%ebx 3a: 31 ff xor %edi,%edi 3c: 48 89 de mov %rbx,%rsi 3f: 0f .byte 0xf