syzbot

INFO: task jfsCommit:106 blocked for more than 143 seconds.
      Not tainted 6.5.0-rc3-syzkaller-00123-g57012c57536f #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:jfsCommit       state:D stack:27616 pid:106   ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0xee1/0x59f0 kernel/sched/core.c:6710
 schedule+0xe7/0x1b0 kernel/sched/core.c:6786
 io_schedule+0xbe/0x130 kernel/sched/core.c:9028
 __lock_metapage fs/jfs/jfs_metapage.c:50 [inline]
 lock_metapage+0x239/0x4d0 fs/jfs/jfs_metapage.c:64
 __get_metapage+0x3ce/0x1170 fs/jfs/jfs_metapage.c:639
 diIAGRead.isra.0+0xcd/0x140 fs/jfs/jfs_imap.c:2662
 diFree+0xa94/0x2760 fs/jfs/jfs_imap.c:955
 jfs_evict_inode+0x3d4/0x4b0 fs/jfs/inode.c:156
 evict+0x2ed/0x6b0 fs/inode.c:665
 iput_final fs/inode.c:1791 [inline]
 iput.part.0+0x55e/0x7a0 fs/inode.c:1817
 iput+0x5c/0x80 fs/inode.c:1807
 txUpdateMap+0xaef/0xd10 fs/jfs/jfs_txnmgr.c:2367
 txLazyCommit fs/jfs/jfs_txnmgr.c:2664 [inline]
 jfs_lazycommit+0x5dc/0xb20 fs/jfs/jfs_txnmgr.c:2732
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8c9a2730 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8c9a2430 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522
1 lock held by khungtaskd/27:
 #0: ffffffff8c9a3340 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6615
2 locks held by jfsCommit/106:
 #0: ffff888070618920 (&(imap->im_aglock[index])){+.+.}-{3:3}, at: diFree+0x2ff/0x2760 fs/jfs/jfs_imap.c:885
 #1: ffff888071bb3278 (&jfs_ip->rdwrlock/1){.+.+}-{3:3}, at: diFree+0x31c/0x2760 fs/jfs/jfs_imap.c:890
2 locks held by getty/4775:
 #0: ffff88814ad15098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900020482f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfcb/0x1480 drivers/tty/n_tty.c:2187
2 locks held by strace-static-x/5022:

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.5.0-rc3-syzkaller-00123-g57012c57536f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x2ac/0x310 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
 watchdog+0xf29/0x11b0 kernel/hung_task.c:379
 kthread+0x33a/0x430 kernel/kthread.c:389
 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296
RIP: 0000:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5022 Comm: strace-static-x Not tainted 6.5.0-rc3-syzkaller-00123-g57012c57536f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:check_region_inline mm/kasan/generic.c:172 [inline]
RIP: 0010:kasan_check_range+0x1b/0x190 mm/kasan/generic.c:187
Code: 43 0c e8 88 df ff ff 89 43 08 5b 5d c3 66 90 66 0f 1f 00 48 85 f6 0f 84 48 01 00 00 48 89 f8 41 54 44 0f b6 c2 48 01 f0 55 53 <0f> 82 c6 00 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 f8 0f 83 b3
RSP: 0018:ffffc900034cfab8 EFLAGS: 00000082
RAX: ffffffff91840e98 RBX: 00000000000000af RCX: ffffffff81663297
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff91840e90
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000080000
R10: ffff88802aca4998 R11: 0000000000000000 R12: 00000000000000af
R13: ffff88807db5ecc8 R14: 0000000000000000 R15: 0000000000000000
FS:  0000000001c263c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4a0935b000 CR3: 000000002aa68000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 hlock_class kernel/locking/lockdep.c:228 [inline]
 check_wait_context kernel/locking/lockdep.c:4780 [inline]
 __lock_acquire+0x437/0x5de0 kernel/locking/lockdep.c:5094
 lock_acquire kernel/locking/lockdep.c:5761 [inline]
 lock_acquire+0x1ae/0x510 kernel/locking/lockdep.c:5726
 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline]
 _raw_spin_lock_irq+0x36/0x50 kernel/locking/spinlock.c:170
 spin_lock_irq include/linux/spinlock.h:376 [inline]
 ptrace_resume kernel/ptrace.c:882 [inline]
 ptrace_request+0x628/0x11f0 kernel/ptrace.c:1219
 arch_ptrace+0x151/0x3b0 arch/x86/kernel/ptrace.c:847
 __do_sys_ptrace kernel/ptrace.c:1305 [inline]
 __se_sys_ptrace kernel/ptrace.c:1278 [inline]
 __x64_sys_ptrace+0x17c/0x2a0 kernel/ptrace.c:1278
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x4e987a
Code: 70 41 83 f8 03 c7 44 24 10 08 00 00 00 48 89 44 24 18 48 8d 44 24 30 8b 70 08 4c 0f 43 d1 48 89 44 24 20 b8 65 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 3e 48 85 c0 78 06 41 83 f8 02 76 1b 48 8b 54
RSP: 002b:00007ffcf99254c0 EFLAGS: 00000206 ORIG_RAX: 0000000000000065
RAX: ffffffffffffffda RBX: 0000000001c26368 RCX: 00000000004e987a
RDX: 0000000000000000 RSI: 00000000000013a1 RDI: 0000000000000018
RBP: 0000000000000018 R08: 0000000000000017 R09: 00000000000003a1
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000001c27b90
R13: 0000000000000000 R14: 0000000001c27b90 R15: 000000000063f160
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.658 msecs