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possible deadlock in serial8250_handle_irq (2)

Status: upstream: reported on 2025/10/09 00:28
Reported-by: syzbot+928e94bcd66d9a567ae0@syzkaller.appspotmail.com
First crash: 150d, last: 1d00h
▶ ▼ Similar bugs (6)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 possible deadlock in serial8250_handle_irq 4 2 266d 331d 0/3 auto-obsoleted due to no activity on 2025/09/22 18:06
upstream possible deadlock in serial8250_handle_irq hams 4 C 180 159d 960d 29/29 fixed on 2025/10/29 21:02
upstream possible deadlock in serial8250_handle_irq (2) fs 4 1 56d 52d 0/29 upstream: reported on 2026/01/14 22:52
linux-6.1 possible deadlock in serial8250_handle_irq (2) 4 14 59d 234d 0/3 upstream: reported on 2025/07/16 08:44
linux-6.6 possible deadlock in serial8250_handle_irq 4 2 244d 245d 0/2 auto-obsoleted due to no activity on 2025/10/14 13:08
linux-6.1 possible deadlock in serial8250_handle_irq 4 1 445d 445d 0/3 auto-obsoleted due to no activity on 2025/03/27 21:41

Sample crash report:
=====================================================
WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected
syzkaller #0 Not tainted
-----------------------------------------------------
kworker/u4:0/9 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
ffffffff8ccce4b8 (disc_data_lock#2){.+.+}-{2:2}, at: sp_get drivers/net/hamradio/6pack.c:375 [inline]
ffffffff8ccce4b8 (disc_data_lock#2){.+.+}-{2:2}, at: sixpack_write_wakeup+0x2c/0x400 drivers/net/hamradio/6pack.c:396

and this task is already holding:
ffffffff966022e0 (&port_lock_key){-.-.}-{2:2}, at: uart_write+0x105/0x880 drivers/tty/serial/serial_core.c:571
which would create a new lock dependency:
 (&port_lock_key){-.-.}-{2:2} -> (disc_data_lock#2){.+.+}-{2:2}

but this new dependency connects a HARDIRQ-irq-safe lock:
 (&port_lock_key){-.-.}-{2:2}

... which became HARDIRQ-irq-safe at:
  lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
  __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
  _raw_spin_lock_irqsave+0xb0/0x100 kernel/locking/spinlock.c:162
  serial8250_handle_irq+0x6c/0x610 drivers/tty/serial/8250/8250_port.c:1895
  serial8250_default_handle_irq+0xb4/0x1a0 drivers/tty/serial/8250/8250_port.c:1941
  serial8250_interrupt+0x9b/0x1c0 drivers/tty/serial/8250/8250_core.c:127
  __handle_irq_event_percpu+0x299/0x9d0 kernel/irq/handle.c:156
  handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
  handle_irq_event+0xa5/0x220 kernel/irq/handle.c:213
  handle_edge_irq+0x243/0xb20 kernel/irq/chip.c:819
  generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
  handle_irq arch/x86/kernel/irq.c:233 [inline]
  __common_interrupt+0xd7/0x1e0 arch/x86/kernel/irq.c:252
  common_interrupt+0xb0/0xd0 arch/x86/kernel/irq.c:242
  asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
  native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
  arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
  default_idle+0xb/0x10 arch/x86/kernel/process.c:729
  default_idle_call+0x81/0xc0 kernel/sched/idle.c:112
  cpuidle_idle_call kernel/sched/idle.c:194 [inline]
  do_idle+0x21f/0x580 kernel/sched/idle.c:306
  cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403
  start_secondary+0x330/0x430 arch/x86/kernel/smpboot.c:281
  secondary_startup_64_no_verify+0xb1/0xbb

to a HARDIRQ-irq-unsafe lock:
 (disc_data_lock#2){.+.+}-{2:2}

... which became HARDIRQ-irq-unsafe at:
...
  lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
  __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
  _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
  sp_get drivers/net/hamradio/6pack.c:375 [inline]
  sixpack_write_wakeup+0x2c/0x400 drivers/net/hamradio/6pack.c:396
  tty_wakeup+0xb4/0xf0 drivers/tty/tty_io.c:534
  tty_port_default_wakeup+0xa5/0xf0 drivers/tty/tty_port.c:51
  tty_ldisc_hangup+0xd6/0x4a0 drivers/tty/tty_ldisc.c:720
  __tty_hangup+0x45c/0x680 drivers/tty/tty_io.c:639
  tty_vhangup drivers/tty/tty_io.c:711 [inline]
  tty_ioctl+0x489/0xc20 drivers/tty/tty_io.c:2750
  vfs_ioctl fs/ioctl.c:51 [inline]
  __do_sys_ioctl fs/ioctl.c:874 [inline]
  __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
  do_syscall_x64 arch/x86/entry/common.c:50 [inline]
  do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
  entry_SYSCALL_64_after_hwframe+0x66/0xd0

other info that might help us debug this:

 Possible interrupt unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(disc_data_lock#2);
                               local_irq_disable();
                               lock(&port_lock_key);
                               lock(disc_data_lock#2);
  <Interrupt>
    lock(&port_lock_key);

 *** DEADLOCK ***

6 locks held by kworker/u4:0/9:
 #0: ffff888016c79138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x761/0x1010 kernel/workqueue.c:-1
 #1: ffffc90000ce7d00 ((work_completion)(&buf->work)){+.+.}-{0:0}, at: process_one_work+0x79f/0x1010 kernel/workqueue.c:2285
 #2: ffff88801fb58ca0 (&buf->lock){+.+.}-{3:3}, at: flush_to_ldisc+0x34/0x530 drivers/tty/tty_buffer.c:495
 #3: ffff888023bbc098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref+0x18/0x80 drivers/tty/tty_ldisc.c:273
 #4: ffffffff966022e0 (&port_lock_key){-.-.}-{2:2}, at: uart_write+0x105/0x880 drivers/tty/serial/serial_core.c:571
 #5: ffff888023bbc098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref+0x18/0x80 drivers/tty/tty_ldisc.c:273

the dependencies between HARDIRQ-irq-safe lock and the holding lock:
-> (&port_lock_key){-.-.}-{2:2} {
   IN-HARDIRQ-W at:
                    lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
                    __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
                    _raw_spin_lock_irqsave+0xb0/0x100 kernel/locking/spinlock.c:162
                    serial8250_handle_irq+0x6c/0x610 drivers/tty/serial/8250/8250_port.c:1895
                    serial8250_default_handle_irq+0xb4/0x1a0 drivers/tty/serial/8250/8250_port.c:1941
                    serial8250_interrupt+0x9b/0x1c0 drivers/tty/serial/8250/8250_core.c:127
                    __handle_irq_event_percpu+0x299/0x9d0 kernel/irq/handle.c:156
                    handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
                    handle_irq_event+0xa5/0x220 kernel/irq/handle.c:213
                    handle_edge_irq+0x243/0xb20 kernel/irq/chip.c:819
                    generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
                    handle_irq arch/x86/kernel/irq.c:233 [inline]
                    __common_interrupt+0xd7/0x1e0 arch/x86/kernel/irq.c:252
                    common_interrupt+0xb0/0xd0 arch/x86/kernel/irq.c:242
                    asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
                    native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline]
                    arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline]
                    default_idle+0xb/0x10 arch/x86/kernel/process.c:729
                    default_idle_call+0x81/0xc0 kernel/sched/idle.c:112
                    cpuidle_idle_call kernel/sched/idle.c:194 [inline]
                    do_idle+0x21f/0x580 kernel/sched/idle.c:306
                    cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403
                    start_secondary+0x330/0x430 arch/x86/kernel/smpboot.c:281
                    secondary_startup_64_no_verify+0xb1/0xbb
   IN-SOFTIRQ-W at:
                    lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
                    __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
                    _raw_spin_lock_irqsave+0xb0/0x100 kernel/locking/spinlock.c:162
                    serial8250_handle_irq+0x6c/0x610 drivers/tty/serial/8250/8250_port.c:1895
                    serial8250_default_handle_irq+0xb4/0x1a0 drivers/tty/serial/8250/8250_port.c:1941
                    serial8250_interrupt+0x9b/0x1c0 drivers/tty/serial/8250/8250_core.c:127
                    __handle_irq_event_percpu+0x299/0x9d0 kernel/irq/handle.c:156
                    handle_irq_event_percpu kernel/irq/handle.c:196 [inline]
                    handle_irq_event+0xa5/0x220 kernel/irq/handle.c:213
                    handle_edge_irq+0x243/0xb20 kernel/irq/chip.c:819
                    generic_handle_irq_desc include/linux/irqdesc.h:158 [inline]
                    handle_irq arch/x86/kernel/irq.c:233 [inline]
                    __common_interrupt+0xd7/0x1e0 arch/x86/kernel/irq.c:252
                    common_interrupt+0x59/0xd0 arch/x86/kernel/irq.c:242
                    asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:667
                    ffs arch/x86/include/asm/bitops.h:297 [inline]
                    handle_softirqs+0x1a9/0x830 kernel/softirq.c:564
                    __do_softirq kernel/softirq.c:610 [inline]
                    invoke_softirq kernel/softirq.c:450 [inline]
                    __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
                    irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
                    instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
                    sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
                    asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
                    console_unlock+0xcad/0x1120 kernel/printk/printk.c:2749
                    vprintk_emit+0xc0/0x150 kernel/printk/printk.c:2274
                    _printk+0xda/0x130 kernel/printk/printk.c:2299
                    check_stack_usage kernel/exit.c:766 [inline]
                    do_exit+0x1771/0x20c0 kernel/exit.c:918
                    do_group_exit+0x12e/0x300 kernel/exit.c:997
                    __do_sys_exit_group kernel/exit.c:1008 [inline]
                    __se_sys_exit_group kernel/exit.c:1006 [inline]
                    __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1006
                    do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                    do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
                    entry_SYSCALL_64_after_hwframe+0x66/0xd0
   INITIAL USE at:
                   lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
                   __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
                   _raw_spin_lock_irqsave+0xb0/0x100 kernel/locking/spinlock.c:162
                   serial8250_do_set_termios+0x54b/0x1850 drivers/tty/serial/8250/8250_port.c:2772
                   uart_set_options+0x3d1/0x5e0 drivers/tty/serial/serial_core.c:2154
                   serial8250_console_setup+0x2bc/0x3a0 drivers/tty/serial/8250/8250_port.c:3447
                   univ8250_console_setup+0xe9/0x180 drivers/tty/serial/8250/8250_core.c:605
                   console_call_setup+0xd3/0xf0 kernel/printk/printk.c:2897
                   try_enable_preferred_console+0x43c/0x5a0 kernel/printk/printk.c:2938
                   register_console+0x2fd/0x980 kernel/printk/printk.c:3037
                   univ8250_console_init+0x41/0x50 drivers/tty/serial/8250/8250_core.c:690
                   console_init+0x177/0x5d0 kernel/printk/printk.c:3207
                   start_kernel+0x2fc/0x540 init/main.c:1090
                   secondary_startup_64_no_verify+0xb1/0xbb
 }
 ... key      at: [<ffffffff966017c0>] port_lock_key+0x0/0x20

the dependencies between the lock to be acquired
 and HARDIRQ-irq-unsafe lock:
-> (disc_data_lock#2){.+.+}-{2:2} {
   HARDIRQ-ON-R at:
                    lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
                    __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
                    _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
                    sp_get drivers/net/hamradio/6pack.c:375 [inline]
                    sixpack_write_wakeup+0x2c/0x400 drivers/net/hamradio/6pack.c:396
                    tty_wakeup+0xb4/0xf0 drivers/tty/tty_io.c:534
                    tty_port_default_wakeup+0xa5/0xf0 drivers/tty/tty_port.c:51
                    tty_ldisc_hangup+0xd6/0x4a0 drivers/tty/tty_ldisc.c:720
                    __tty_hangup+0x45c/0x680 drivers/tty/tty_io.c:639
                    tty_vhangup drivers/tty/tty_io.c:711 [inline]
                    tty_ioctl+0x489/0xc20 drivers/tty/tty_io.c:2750
                    vfs_ioctl fs/ioctl.c:51 [inline]
                    __do_sys_ioctl fs/ioctl.c:874 [inline]
                    __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
                    do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                    do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
                    entry_SYSCALL_64_after_hwframe+0x66/0xd0
   SOFTIRQ-ON-R at:
                    lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
                    __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
                    _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
                    sp_get drivers/net/hamradio/6pack.c:375 [inline]
                    sixpack_write_wakeup+0x2c/0x400 drivers/net/hamradio/6pack.c:396
                    tty_wakeup+0xb4/0xf0 drivers/tty/tty_io.c:534
                    tty_port_default_wakeup+0xa5/0xf0 drivers/tty/tty_port.c:51
                    tty_ldisc_hangup+0xd6/0x4a0 drivers/tty/tty_ldisc.c:720
                    __tty_hangup+0x45c/0x680 drivers/tty/tty_io.c:639
                    tty_vhangup drivers/tty/tty_io.c:711 [inline]
                    tty_ioctl+0x489/0xc20 drivers/tty/tty_io.c:2750
                    vfs_ioctl fs/ioctl.c:51 [inline]
                    __do_sys_ioctl fs/ioctl.c:874 [inline]
                    __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
                    do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                    do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
                    entry_SYSCALL_64_after_hwframe+0x66/0xd0
   INITIAL USE at:
                   lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
                   __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline]
                   _raw_write_lock_irq+0xab/0xf0 kernel/locking/spinlock.c:316
                   sixpack_close+0x28/0x1e0 drivers/net/hamradio/6pack.c:651
                   tty_ldisc_kill+0xa6/0x1a0 drivers/tty/tty_ldisc.c:629
                   tty_ldisc_hangup+0x392/0x4a0 drivers/tty/tty_ldisc.c:749
                   __tty_hangup+0x45c/0x680 drivers/tty/tty_io.c:639
                   tty_vhangup drivers/tty/tty_io.c:711 [inline]
                   tty_ioctl+0x489/0xc20 drivers/tty/tty_io.c:2750
                   vfs_ioctl fs/ioctl.c:51 [inline]
                   __do_sys_ioctl fs/ioctl.c:874 [inline]
                   __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
                   do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                   do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
                   entry_SYSCALL_64_after_hwframe+0x66/0xd0
   INITIAL READ USE at:
                        lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
                        __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
                        _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
                        sp_get drivers/net/hamradio/6pack.c:375 [inline]
                        sixpack_write_wakeup+0x2c/0x400 drivers/net/hamradio/6pack.c:396
                        tty_wakeup+0xb4/0xf0 drivers/tty/tty_io.c:534
                        tty_port_default_wakeup+0xa5/0xf0 drivers/tty/tty_port.c:51
                        tty_ldisc_hangup+0xd6/0x4a0 drivers/tty/tty_ldisc.c:720
                        __tty_hangup+0x45c/0x680 drivers/tty/tty_io.c:639
                        tty_vhangup drivers/tty/tty_io.c:711 [inline]
                        tty_ioctl+0x489/0xc20 drivers/tty/tty_io.c:2750
                        vfs_ioctl fs/ioctl.c:51 [inline]
                        __do_sys_ioctl fs/ioctl.c:874 [inline]
                        __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
                        do_syscall_x64 arch/x86/entry/common.c:50 [inline]
                        do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
                        entry_SYSCALL_64_after_hwframe+0x66/0xd0
 }
 ... key      at: [<ffffffff8ccce4b8>] disc_data_lock+0x18/0x100
 ... acquired at:
   __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
   _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
   sp_get drivers/net/hamradio/6pack.c:375 [inline]
   sixpack_write_wakeup+0x2c/0x400 drivers/net/hamradio/6pack.c:396
   tty_wakeup+0xb4/0xf0 drivers/tty/tty_io.c:534
   tty_port_default_wakeup+0xa5/0xf0 drivers/tty/tty_port.c:51
   serial8250_tx_chars+0x629/0x830 drivers/tty/serial/8250/8250_port.c:1828
   __start_tx drivers/tty/serial/8250/8250_port.c:1548 [inline]
   serial8250_start_tx+0x7e9/0xa20 drivers/tty/serial/8250/8250_port.c:1652
   __uart_start drivers/tty/serial/serial_core.c:132 [inline]
   uart_write+0x61e/0x880 drivers/tty/serial/serial_core.c:591
   decode_prio_command drivers/net/hamradio/6pack.c:886 [inline]
   sixpack_decode drivers/net/hamradio/6pack.c:959 [inline]
   sixpack_receive_buf+0x421/0x12f0 drivers/net/hamradio/6pack.c:452
   tty_ldisc_receive_buf+0x113/0x150 drivers/tty/tty_buffer.c:455
   tty_port_default_receive_buf+0x69/0x90 drivers/tty/tty_port.c:39
   receive_buf drivers/tty/tty_buffer.c:471 [inline]
   flush_to_ldisc+0x2a7/0x530 drivers/tty/tty_buffer.c:523
   process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
   worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
   kthread+0x436/0x520 kernel/kthread.c:334
   ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287


stack backtrace:
CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: events_unbound flush_to_ldisc
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
 print_bad_irq_dependency kernel/locking/lockdep.c:2567 [inline]
 check_irq_usage kernel/locking/lockdep.c:2806 [inline]
 check_prev_add kernel/locking/lockdep.c:3057 [inline]
 check_prevs_add kernel/locking/lockdep.c:3172 [inline]
 validate_chain kernel/locking/lockdep.c:3788 [inline]
 __lock_acquire+0x6688/0x7d10 kernel/locking/lockdep.c:5012
 lock_acquire+0x19e/0x400 kernel/locking/lockdep.c:5623
 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline]
 _raw_read_lock+0x32/0x40 kernel/locking/spinlock.c:228
 sp_get drivers/net/hamradio/6pack.c:375 [inline]
 sixpack_write_wakeup+0x2c/0x400 drivers/net/hamradio/6pack.c:396
 tty_wakeup+0xb4/0xf0 drivers/tty/tty_io.c:534
 tty_port_default_wakeup+0xa5/0xf0 drivers/tty/tty_port.c:51
 serial8250_tx_chars+0x629/0x830 drivers/tty/serial/8250/8250_port.c:1828
 __start_tx drivers/tty/serial/8250/8250_port.c:1548 [inline]
 serial8250_start_tx+0x7e9/0xa20 drivers/tty/serial/8250/8250_port.c:1652
 __uart_start drivers/tty/serial/serial_core.c:132 [inline]
 uart_write+0x61e/0x880 drivers/tty/serial/serial_core.c:591
 decode_prio_command drivers/net/hamradio/6pack.c:886 [inline]
 sixpack_decode drivers/net/hamradio/6pack.c:959 [inline]
 sixpack_receive_buf+0x421/0x12f0 drivers/net/hamradio/6pack.c:452
 tty_ldisc_receive_buf+0x113/0x150 drivers/tty/tty_buffer.c:455
 tty_port_default_receive_buf+0x69/0x90 drivers/tty/tty_port.c:39
 receive_buf drivers/tty/tty_buffer.c:471 [inline]
 flush_to_ldisc+0x2a7/0x530 drivers/tty/tty_buffer.c:523
 process_one_work+0x85f/0x1010 kernel/workqueue.c:2310
 worker_thread+0xaa6/0x1290 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Crashes (10):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/03/07 02:21 linux-5.15.y 91d48252ad4b 5cb44a80 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan possible deadlock in serial8250_handle_irq
2026/03/06 01:57 linux-5.15.y 91d48252ad4b 31e9c887 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan possible deadlock in serial8250_handle_irq
2026/02/27 16:34 linux-5.15.y 3330a8d33e08 2cf092b8 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan possible deadlock in serial8250_handle_irq
2026/02/27 00:56 linux-5.15.y 3330a8d33e08 a2f13f71 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan possible deadlock in serial8250_handle_irq
2026/02/26 13:03 linux-5.15.y 3330a8d33e08 ffa54287 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan possible deadlock in serial8250_handle_irq
2026/02/25 12:35 linux-5.15.y 3330a8d33e08 94a9671e .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan possible deadlock in serial8250_handle_irq
2026/01/27 00:37 linux-5.15.y 9eec9a14ee10 efb3e894 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan possible deadlock in serial8250_handle_irq
2025/12/10 15:43 linux-5.15.y 68efe5a6c16a d6526ea3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan possible deadlock in serial8250_handle_irq
2025/11/20 12:08 linux-5.15.y cc5ec8769306 2cc4c24a .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan possible deadlock in serial8250_handle_irq
2025/10/09 00:28 linux-5.15.y 29e53a5b1c4f 7e2882b3 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan possible deadlock in serial8250_handle_irq
* Struck through repros no longer work on HEAD.