INFO: task syz.1.17:5956 blocked for more than 143 seconds.
Not tainted 6.13.0-rc2-syzkaller-00292-ga446e965a188 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.17 state:D stack:25952 pid:5956 tgid:5956 ppid:5835 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
do_sync_mmap_readahead+0x499/0x970
filemap_fault+0x8a9/0x1490 mm/filemap.c:3344
__do_fault+0x135/0x390 mm/memory.c:4907
do_shared_fault mm/memory.c:5386 [inline]
do_fault mm/memory.c:5460 [inline]
do_pte_missing mm/memory.c:3979 [inline]
handle_pte_fault+0xfcf/0x5ed0 mm/memory.c:5801
__handle_mm_fault mm/memory.c:5944 [inline]
handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6112
do_user_addr_fault arch/x86/mm/fault.c:1338 [inline]
handle_page_fault arch/x86/mm/fault.c:1481 [inline]
exc_page_fault+0x459/0x8b0 arch/x86/mm/fault.c:1539
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fc24a54da98
RSP: 002b:00007ffd45524868 EFLAGS: 00010202
RAX: 0000000020000100 RBX: 0000000000000004 RCX: 0030626c6c756e2f
RDX: 000000000000000c RSI: 6c756e2f7665642f RDI: 0000000020000100
RBP: 00007fc24a777ba0 R08: 00007fc24a400000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000009 R12: 0000000000013a2b
R13: 00007ffd45524970 R14: 0000000000000032 R15: fffffffffffffffe
INFO: task syz.1.17:5957 blocked for more than 144 seconds.
Not tainted 6.13.0-rc2-syzkaller-00292-ga446e965a188 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.17 state:D stack:22392 pid:5957 tgid:5956 ppid:5835 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6905
rwsem_down_read_slowpath kernel/locking/rwsem.c:1084 [inline]
__down_read_common kernel/locking/rwsem.c:1248 [inline]
__down_read kernel/locking/rwsem.c:1261 [inline]
down_read+0x705/0xa40 kernel/locking/rwsem.c:1526
filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
do_sync_mmap_readahead+0x499/0x970
filemap_fault+0x8a9/0x1490 mm/filemap.c:3344
__do_fault+0x135/0x390 mm/memory.c:4907
do_read_fault mm/memory.c:5322 [inline]
do_fault mm/memory.c:5456 [inline]
do_pte_missing mm/memory.c:3979 [inline]
handle_pte_fault+0x39eb/0x5ed0 mm/memory.c:5801
__handle_mm_fault mm/memory.c:5944 [inline]
handle_mm_fault+0x1053/0x1ad0 mm/memory.c:6112
faultin_page mm/gup.c:1196 [inline]
__get_user_pages+0x1c82/0x49e0 mm/gup.c:1494
populate_vma_page_range+0x264/0x330 mm/gup.c:1932
__mm_populate+0x27a/0x460 mm/gup.c:2035
mm_populate include/linux/mm.h:3386 [inline]
vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:585
ksys_mmap_pgoff+0x4eb/0x720 mm/mmap.c:542
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc24a585d19
RSP: 002b:00007fc24b2ff038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007fc24a775fa0 RCX: 00007fc24a585d19
RDX: 0000000001000002 RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007fc24a601a20 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000028011 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc24a775fa0 R15: 00007ffd45524708
Showing all locks held in the system:
3 locks held by kworker/u8:1/12:
1 lock held by khungtaskd/30:
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937ae0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
2 locks held by getty/5573:
#0: ffff888031aee0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc9000330b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz.2.13/5938:
1 lock held by syz.1.17/5956:
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.1.17/5957:
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.6.84/6389:
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.4.234/6878:
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.4.234/6879:
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.4.234/6882:
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.3.277/7015:
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.3.277/7016:
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.8.408/7519:
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.5.446/7638:
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
1 lock held by syz.5.446/7642:
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: filemap_invalidate_lock_shared include/linux/fs.h:873 [inline]
#0: ffff888148ca14c0 (mapping.invalidate_lock#2){++++}-{4:4}, at: page_cache_ra_unbounded+0x142/0x720 mm/readahead.c:226
7 locks held by syz-executor/7663:
#0: ffff888035a4c420 (sb_writers#8){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2964 [inline]
#0: ffff888035a4c420 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x225/0xd30 fs/read_write.c:675
#1: ffff88805206c088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#2: ffff888144b290f8 (kn->active#49){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x20e/0x500 fs/kernfs/file.c:326
#3: ffffffff8f54b1a8 (nsim_bus_dev_list_lock){+.+.}-{4:4}, at: del_device_store+0xfc/0x480 drivers/net/netdevsim/bus.c:216
#4: ffff88805cc9c0e8 (&dev->mutex){....}-{4:4}, at: device_lock include/linux/device.h:1014 [inline]
#4: ffff88805cc9c0e8 (&dev->mutex){....}-{4:4}, at: __device_driver_lock drivers/base/dd.c:1095 [inline]
#4: ffff88805cc9c0e8 (&dev->mutex){....}-{4:4}, at: device_release_driver_internal+0xce/0x7c0 drivers/base/dd.c:1293
#5: ffff88805cc9d250 (&devlink->lock_key#3){+.+.}-{4:4}, at: nsim_drv_remove+0x50/0x160 drivers/net/netdevsim/dev.c:1675
#6: ffffffff8e93cec0 (rcu_state.barrier_mutex){+.+.}-{4:4}, at: rcu_barrier+0x4c/0x530 kernel/rcu/tree.c:4565
2 locks held by dhcpcd/7732:
#0: ffff888021b5e258 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1617 [inline]
#0: ffff888021b5e258 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xcb0 net/packet/af_packet.c:3267
#1: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
#1: ffffffff8e93cff8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:976
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc2-syzkaller-00292-ga446e965a188 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5938 Comm: syz.2.13 Not tainted 6.13.0-rc2-syzkaller-00292-ga446e965a188 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:bio_split_rw_at+0x383/0xbf0 block/blk-merge.c:331
Code: 44 89 e7 44 8b 74 24 3c 44 89 f6 e8 37 5a 04 fd 48 8b 44 24 30 41 01 c7 bf 01 10 00 00 44 89 fe e8 a2 5c 04 fd 4c 89 64 24 18 <45> 39 f4 77 2a 41 81 ff 01 10 00 00 73 21 e8 4a 58 04 fd 41 ff c5
RSP: 0018:ffffc900043df5c0 EFLAGS: 00000297
RAX: 0000000000000002 RBX: 0000000000000080 RCX: dffffc0000000000
RDX: ffff888026f49e00 RSI: 0000000000001000 RDI: 0000000000001001
RBP: ffffc900043df718 R08: ffffffff849b058e R09: ffffffff849b082f
R10: 0000000000000003 R11: ffff888026f49e00 R12: 0000000000008a00
R13: 0000000000000008 R14: 000000000001fe00 R15: 0000000000001000
FS: 00007ff3e52d06c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005649540d2680 CR3: 000000007e6f8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
bio_split_rw+0x2fe/0x400 block/blk-merge.c:381
__bio_split_to_limits block/blk.h:383 [inline]
blk_mq_submit_bio+0x17e1/0x2390 block/blk-mq.c:3103
__submit_bio+0x2c6/0x560 block/blk-core.c:629
__submit_bio_noacct_mq block/blk-core.c:710 [inline]
submit_bio_noacct_nocheck+0x579/0xe30 block/blk-core.c:739
bio_chain_and_submit+0xed/0x130 block/bio.c:361
__blkdev_issue_zero_pages+0x218/0x290 block/blk-lib.c:222
blkdev_issue_zero_pages block/blk-lib.c:238 [inline]
blkdev_issue_zeroout+0x5e1/0x7e0 block/blk-lib.c:325
blkdev_fallocate+0x3dc/0x490
vfs_fallocate+0x569/0x6e0 fs/open.c:327
ksys_fallocate fs/open.c:351 [inline]
__do_sys_fallocate fs/open.c:356 [inline]
__se_sys_fallocate fs/open.c:354 [inline]
__x64_sys_fallocate+0xbc/0x110 fs/open.c:354
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff3e4585d19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ff3e52d0038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007ff3e4775fa0 RCX: 00007ff3e4585d19
RDX: 0000000000000000 RSI: 0000000000000011 RDI: 0000000000000007
RBP: 00007ff3e4601a20 R08: 0000000000000000 R09: 0000000000000000
R10: 7fffffffffffffff R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff3e4775fa0 R15: 00007fff43102618