* [linus:master] [x86/cpu] 3eaa50e1e2: WARNING:at_arch/x86/mm/tlb.c:#switch_mm_irqs_off
@ 2026-11-04 1:29 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-11-04 1:29 UTC (permalink / raw)
To: Borislav Petkov
Cc: oe-lkp, lkp, linux-kernel, Nikolay Borisov, linux-um,
linux-perf-users, kvm, linux1394-devel, dri-devel, intel-gfx,
dm-devel, platform-driver-x86, linux-pm, yi1.lai
Hello,
kernel test robot noticed "WARNING:at_arch/x86/mm/tlb.c:#switch_mm_irqs_off" on:
commit: 3eaa50e1e255ec261c757b9eea811ef3bac10d1e ("x86/cpu: Hide and rename static_cpu_has()") https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
[test failed on linux-next/master 7649ba73f9e7e1e04d0b46213e39c79ae09dd55c]
in testcase: trinity
version:
with following parameters:
runtime: 300s
group: group-03
nr_groups: 5
config: i386-randconfig-2302-20261020
compiler: clang-22
test machine: qemu-system-i386 -enable-kvm -cpu Icelake-Server-noTSX,enforce,lm=off -smp 4 -m 4G
(please refer to attached dmesg/kmsg for entire log/backtrace)
If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <yi1.lai@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202611040239.b33be21c-lkp@intel.com
[ 6.581068][ T0] ======================================================
[ 6.581069][ T0] WARNING: possible circular locking dependency detected
[ 6.581070][ T0] 7.2.0-rc2-00001-g3eaa50e1e255 #1 Not tainted
[ 6.581072][ T0] ------------------------------------------------------
[ 6.581073][ T0] swapper/1/0 is trying to acquire lock:
[ 6.581074][ T0] c31a3080 (console_owner){..-.}-{0:0}, at: console_lock_spinning_enable+0x2b/0x80
[ 6.581086][ T0]
[ 6.581086][ T0] but task is already holding lock:
[ 6.581086][ T0]
[ 6.581086][ T0] but task is already holding lock:
[ 6.581086][ T0]
[ 6.581086][ T0] but task is already holding lock:
[ 6.581087][ T0] e85ad118 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1b4/0x940
[ 6.581676][ T0]
[ 6.581676][ T0] which lock already depends on the new lock.
[ 6.581676][ T0]
[ 6.581676][ T0] which lock already depends on the new lock.
[ 6.581676][ T0]
[ 6.581676][ T0] which lock already depends on the new lock.
[ 6.581676][ T0]
[ 6.581677][ T0]
[ 6.581677][ T0] the existing dependency chain (in reverse order) is:
[ 6.581677][ T0]
[ 6.581677][ T0] the existing dependency chain (in reverse order) is:
[ 6.581677][ T0]
[ 6.581677][ T0] the existing dependency chain (in reverse order) is:
[ 6.581678][ T0]
[ 6.581678][ T0] -> #4 (&rq->__lock){-.-.}-{2:2}:
[ 6.581678][ T0]
[ 6.581678][ T0] -> #4 (&rq->__lock){-.-.}-{2:2}:
[ 6.581678][ T0]
[ 6.581678][ T0] -> #4 (&rq->__lock){-.-.}-{2:2}:
[ 6.581683][ T0] _raw_spin_lock_nested+0x20/0x40
[ 6.581686][ T0] ___task_rq_lock+0x55/0x100
[ 6.581691][ T0] wake_up_new_task+0xd5/0x2c0
[ 6.581693][ T0] kernel_clone+0x1f4/0x3c0
[ 6.581696][ T0] user_mode_thread+0x61/0x80
[ 6.581698][ T0] rest_init+0x1a/0x1c0
[ 6.581700][ T0] start_kernel+0x337/0x3c0
[ 6.581706][ T0] i386_start_kernel+0xc6/0x100
[ 6.581708][ T0] startup_32_smp+0x151/0x154
[ 6.581710][ T0]
[ 6.581710][ T0] -> #3 (&p->pi_lock){-.-.}-{2:2}:
[ 6.581710][ T0]
[ 6.581710][ T0] -> #3 (&p->pi_lock){-.-.}-{2:2}:
[ 6.581710][ T0]
[ 6.581710][ T0] -> #3 (&p->pi_lock){-.-.}-{2:2}:
[ 6.581713][ T0] _raw_spin_lock_irqsave+0x33/0x80
[ 6.581715][ T0] try_to_wake_up+0x3b/0x440
[ 6.581717][ T0] default_wake_function+0x13/0x40
[ 6.581719][ T0] autoremove_wake_function+0x10/0x40
[ 6.581723][ T0] __wake_up_common_lock+0x6e/0xc0
[ 6.581726][ T0] __wake_up+0x13/0x40
[ 6.581729][ T0] tty_wakeup+0x50/0x80
[ 6.581732][ T0] tty_port_default_wakeup+0x52/0x80
[ 6.581734][ T0] tty_port_tty_wakeup+0x11/0x40
[ 6.581737][ T0] uart_write_wakeup+0x12/0x40
[ 6.581739][ T0] serial8250_tx_chars+0x184/0x1c0
[ 6.581741][ T0] serial8250_handle_irq_locked+0x1bd/0x200
[ 6.581744][ T0] serial8250_handle_irq+0x57/0x100
[ 6.581746][ T0] serial8250_default_handle_irq+0x1c/0x40
[ 6.581748][ T0] serial8250_interrupt+0x41/0xc0
[ 6.581750][ T0] __handle_irq_event_percpu+0xac/0x3c0
[ 6.581752][ T0] handle_irq_event+0x26/0x80
[ 6.581754][ T0] handle_edge_irq+0x77/0x140
[ 6.581757][ T0] __handle_irq+0x67/0x80
[ 6.581761][ T0] __common_interrupt+0x74/0xc0
[ 6.581763][ T0] common_interrupt+0x24/0x40
[ 6.581765][ T0] asm_common_interrupt+0x137/0x140
[ 6.581768][ T0] pv_native_safe_halt+0xe/0x40
[ 6.581769][ T0] default_idle+0x8/0x40
[ 6.581771][ T0] arch_cpu_idle+0x8/0x40
[ 6.581773][ T0] default_idle_call+0x6c/0xc0
[ 6.581775][ T0] do_idle+0xbc/0x240
[ 6.581779][ T0] cpu_startup_entry+0x25/0x40
[ 6.581781][ T0] start_secondary+0x9f/0xc0
[ 6.581785][ T0] startup_32_smp+0x151/0x154
[ 6.581787][ T0]
[ 6.581787][ T0] -> #2 (&tty->write_wait){-...}-{3:3}:
[ 6.581787][ T0]
[ 6.581787][ T0] -> #2 (&tty->write_wait){-...}-{3:3}:
[ 6.581787][ T0]
[ 6.581787][ T0] -> #2 (&tty->write_wait){-...}-{3:3}:
[ 6.581790][ T0] _raw_spin_lock_irqsave+0x33/0x80
[ 6.581791][ T0] __wake_up_common_lock+0x15/0xc0
[ 6.581794][ T0] __wake_up+0x13/0x40
[ 6.581796][ T0] tty_wakeup+0x50/0x80
[ 6.581798][ T0] tty_port_default_wakeup+0x52/0x80
[ 6.581801][ T0] tty_port_tty_wakeup+0x11/0x40
[ 6.581802][ T0] uart_write_wakeup+0x12/0x40
[ 6.581805][ T0] serial8250_tx_chars+0x184/0x1c0
[ 6.581807][ T0] serial8250_handle_irq_locked+0x1bd/0x200
[ 6.581809][ T0] serial8250_handle_irq+0x57/0x100
[ 6.581811][ T0] serial8250_default_handle_irq+0x1c/0x40
[ 6.581813][ T0] serial8250_interrupt+0x41/0xc0
[ 6.581815][ T0] __handle_irq_event_percpu+0xac/0x3c0
[ 6.581817][ T0] handle_irq_event+0x26/0x80
[ 6.581818][ T0] handle_edge_irq+0x77/0x140
[ 6.581820][ T0] __handle_irq+0x67/0x80
[ 6.581822][ T0] __common_interrupt+0x74/0xc0
[ 6.581825][ T0] common_interrupt+0x24/0x40
[ 6.581827][ T0] asm_common_interrupt+0x137/0x140
[ 6.581829][ T0] pv_native_safe_halt+0xe/0x40
[ 6.581830][ T0] default_idle+0x8/0x40
[ 6.581832][ T0] arch_cpu_idle+0x8/0x40
[ 6.581834][ T0] default_idle_call+0x6c/0xc0
[ 6.581835][ T0] do_idle+0xbc/0x240
[ 6.581838][ T0] cpu_startup_entry+0x25/0x40
[ 6.581840][ T0] start_secondary+0x9f/0xc0
[ 6.581842][ T0] startup_32_smp+0x151/0x154
[ 6.581844][ T0]
[ 6.581844][ T0] -> #1 (&port_lock_key){-.-.}-{3:3}:
[ 6.581844][ T0]
[ 6.581844][ T0] -> #1 (&port_lock_key){-.-.}-{3:3}:
[ 6.581844][ T0]
[ 6.581844][ T0] -> #1 (&port_lock_key){-.-.}-{3:3}:
[ 6.581847][ T0] _raw_spin_lock_irqsave+0x33/0x80
[ 6.581848][ T0] serial8250_console_write+0x57/0x640
[ 6.581851][ T0] univ8250_console_write+0x20/0x40
[ 6.581853][ T0] console_flush_all+0x26f/0x480
[ 6.581856][ T0] console_unlock+0x65/0x100
[ 6.581858][ T0] vprintk_emit+0x183/0x2c0
[ 6.581860][ T0] vprintk_default+0x10/0x40
[ 6.581862][ T0] vprintk+0xe/0x40
[ 6.581864][ T0] _printk+0x20/0x40
[ 6.581866][ T0] register_console+0x340/0x3c0
[ 6.581868][ T0] univ8250_console_init+0x1b/0x40
[ 6.581871][ T0] console_init+0x7b/0x280
[ 6.581874][ T0] start_kernel+0x229/0x3c0
[ 6.581877][ T0] i386_start_kernel+0xc6/0x100
[ 6.581879][ T0] startup_32_smp+0x151/0x154
[ 6.581880][ T0]
[ 6.581880][ T0] -> #0 (console_owner){..-.}-{0:0}:
[ 6.581880][ T0]
[ 6.581880][ T0] -> #0 (console_owner){..-.}-{0:0}:
[ 6.581880][ T0]
[ 6.581880][ T0] -> #0 (console_owner){..-.}-{0:0}:
[ 6.581883][ T0] __lock_acquire+0x16ac/0x2a80
[ 6.581886][ T0] lock_acquire+0xa0/0x240
[ 6.581888][ T0] console_lock_spinning_enable+0x44/0x80
[ 6.581890][ T0] console_flush_all+0x253/0x480
[ 6.581893][ T0] console_unlock+0x65/0x100
[ 6.581894][ T0] vprintk_emit+0x183/0x2c0
[ 6.581896][ T0] vprintk_default+0x10/0x40
[ 6.581898][ T0] vprintk+0xe/0x40
[ 6.581900][ T0] _printk+0x20/0x40
[ 6.581902][ T0] __report_bug+0xa8/0x140
[ 6.581904][ T0] report_bug+0x61/0x80
[ 6.581906][ T0] handle_bug+0x92/0x240
[ 6.581908][ T0] exc_invalid_op+0x24/0x80
[ 6.581911][ T0] handle_exception_return+0x0/0xcb
[ 6.581913][ T0] switch_mm_irqs_off+0x3bd/0x440
[ 6.581916][ T0] __schedule+0x539/0x940
[ 6.581918][ T0] schedule_idle+0x2a/0x40
[ 6.581920][ T0] do_idle+0x1cf/0x240
[ 6.581923][ T0] cpu_startup_entry+0x25/0x40
[ 6.581925][ T0] start_secondary+0x9f/0xc0
[ 6.581927][ T0] startup_32_smp+0x151/0x154
[ 6.581929][ T0]
[ 6.581929][ T0] other info that might help us debug this:
[ 6.581929][ T0]
[ 6.581929][ T0] other info that might help us debug this:
[ 6.581929][ T0]
[ 6.581929][ T0] other info that might help us debug this:
[ 6.581929][ T0]
[ 6.581930][ T0] Chain exists of:
[ 6.581930][ T0] console_owner --> &p->pi_lock --> &rq->__lock
[ 6.581930][ T0]
[ 6.581930][ T0] Chain exists of:
[ 6.581930][ T0] console_owner --> &p->pi_lock --> &rq->__lock
[ 6.581930][ T0]
[ 6.581930][ T0] Chain exists of:
[ 6.581930][ T0] console_owner --> &p->pi_lock --> &rq->__lock
[ 6.581930][ T0]
[ 6.581933][ T0] Possible unsafe locking scenario:
[ 6.581933][ T0]
[ 6.581933][ T0] Possible unsafe locking scenario:
[ 6.581933][ T0]
[ 6.581933][ T0] Possible unsafe locking scenario:
[ 6.581933][ T0]
[ 6.581934][ T0] CPU0 CPU1
[ 6.581935][ T0] ---- ----
[ 6.581935][ T0] lock(&rq->__lock);
[ 6.581937][ T0] lock(&p->pi_lock);
[ 6.581939][ T0] lock(&rq->__lock);
[ 6.581940][ T0] lock(console_owner);
[ 6.581941][ T0]
[ 6.581941][ T0] *** DEADLOCK ***
[ 6.581941][ T0]
[ 6.581941][ T0] *** DEADLOCK ***
[ 6.581941][ T0]
[ 6.581941][ T0] *** DEADLOCK ***
[ 6.581941][ T0]
[ 6.581942][ T0] 3 locks held by swapper/1/0:
[ 6.581944][ T0] #0: e85ad118 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x1b4/0x940
[ 6.581949][ T0] #1: c31a3094 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x17a/0x2c0
[ 6.581954][ T0] #2: c2e82dc4 (console_srcu){....}-{0:0}, at: rcu_try_lock_acquire+0x0/0x40
[ 6.581959][ T0]
[ 6.581959][ T0] stack backtrace:
[ 6.581959][ T0]
[ 6.581959][ T0] stack backtrace:
[ 6.581959][ T0]
[ 6.581959][ T0] stack backtrace:
[ 6.581962][ T0] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 7.2.0-rc2-00001-g3eaa50e1e255 #1 PREEMPT(lazy)
[ 6.581965][ T0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 6.581967][ T0] Call Trace:
[ 6.581969][ T0] __dump_stack+0x18/0x40
[ 6.581973][ T0] dump_stack_lvl+0x65/0xc0
[ 6.581976][ T0] dump_stack+0xd/0x12
[ 6.581979][ T0] print_circular_bug+0x2bf/0x300
[ 6.581982][ T0] check_noncircular+0x106/0x140
[ 6.581986][ T0] __lock_acquire+0x16ac/0x2a80
[ 6.581994][ T0] lock_acquire+0xa0/0x240
[ 6.581997][ T0] ? console_lock_spinning_enable+0x2b/0x80
[ 6.582000][ T0] ? console_lock_spinning_enable+0x2b/0x80
[ 6.582003][ T0] console_lock_spinning_enable+0x44/0x80
[ 6.582006][ T0] ? console_lock_spinning_enable+0x2b/0x80
[ 6.582008][ T0] console_flush_all+0x253/0x480
[ 6.582012][ T0] console_unlock+0x65/0x100
[ 6.582016][ T0] vprintk_emit+0x183/0x2c0
[ 6.582019][ T0] vprintk_default+0x10/0x40
[ 6.582022][ T0] vprintk+0xe/0x40
[ 6.582025][ T0] _printk+0x20/0x40
[ 6.582027][ T0] __report_bug+0xa8/0x140
[ 6.582030][ T0] ? switch_mm_irqs_off+0x3bd/0x440
[ 6.582033][ T0] ? switch_mm_irqs_off+0x3bf/0x440
[ 6.582036][ T0] report_bug+0x61/0x80
[ 6.582038][ T0] handle_bug+0x92/0x240
[ 6.582041][ T0] ? switch_mm_irqs_off+0x3bd/0x440
[ 6.582043][ T0] ? handle_bug+0x240/0x240
[ 6.582046][ T0] exc_invalid_op+0x24/0x80
[ 6.582049][ T0] handle_exception+0x168/0x168
[ 6.582052][ T0] EIP: switch_mm_irqs_off+0x3bd/0x440
[ 6.582054][ T0] Code: 89 55 e4 e8 25 3f 40 01 8b 55 e4 8b 45 f0 f7 45 e8 00 02 00 00 0f 85 31 fe ff ff e9 2d fe ff ff 0f 0b e9 b3 fd ff ff 8b 75 ec <0f> 0b 83 7d f0 08 73 13 8b 45 f0 f0 0f ab 86 00 05 00 00 8b 5d e0
[ 6.582057][ T0] EAX: 00000001 EBX: e85a0000 ECX: c0ecf380 EDX: c0ecf380
[ 6.582059][ T0] ESI: c0ecf380 EDI: 00000000 EBP: c031ff0c ESP: c031fee4
[ 6.582061][ T0] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00210096
[ 6.582064][ T0] ? handle_bug+0x240/0x240
[ 6.582067][ T0] ? handle_bug+0x240/0x240
[ 6.582070][ T0] ? switch_mm_irqs_off+0x3bd/0x440
[ 6.582074][ T0] __schedule+0x539/0x940
[ 6.582079][ T0] schedule_idle+0x2a/0x40
[ 6.582081][ T0] do_idle+0x1cf/0x240
[ 6.582085][ T0] cpu_startup_entry+0x25/0x40
[ 6.582087][ T0] start_secondary+0x9f/0xc0
[ 6.582090][ T0] startup_32_smp+0x151/0x154
[ 6.752586][ T0] WARNING: arch/x86/mm/tlb.c:859 at switch_mm_irqs_off+0x3bd/0x440, CPU#1: swapper/1/0
[ 6.754233][ T0] Modules linked in:
[ 6.754879][ T0] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 7.2.0-rc2-00001-g3eaa50e1e255 #1 PREEMPT(lazy)
[ 6.756668][ T0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 6.758441][ T0] EIP: switch_mm_irqs_off+0x3bd/0x440
[ 6.759346][ T0] Code: 89 55 e4 e8 25 3f 40 01 8b 55 e4 8b 45 f0 f7 45 e8 00 02 00 00 0f 85 31 fe ff ff e9 2d fe ff ff 0f 0b e9 b3 fd ff ff 8b 75 ec <0f> 0b 83 7d f0 08 73 13 8b 45 f0 f0 0f ab 86 00 05 00 00 8b 5d e0
[ 6.762672][ T0] EAX: 00000001 EBX: e85a0000 ECX: c0ecf380 EDX: c0ecf380
[ 6.763861][ T0] ESI: c0ecf380 EDI: 00000000 EBP: c031ff0c ESP: c031fee4
[ 6.765043][ T0] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00210096
[ 6.766344][ T0] CR0: 80050033 CR2: b7d0600c CR3: 0435b000 CR4: 00350ed0
[ 6.767537][ T0] Call Trace:
[ 6.768079][ T0] __schedule+0x539/0x940
[ 6.768799][ T0] schedule_idle+0x2a/0x40
[ 6.769557][ T0] do_idle+0x1cf/0x240
[ 6.770231][ T0] cpu_startup_entry+0x25/0x40
[ 6.771029][ T0] start_secondary+0x9f/0xc0
[ 6.771794][ T0] startup_32_smp+0x151/0x154
[ 6.772571][ T0] irq event stamp: 11750
[ 6.773297][ T0] hardirqs last enabled at (11749): [<c248ea58>] default_idle_call+0x98/0xc0
[ 6.774773][ T0] hardirqs last disabled at (11750): [<c2492d95>] __schedule+0x155/0x940
[ 6.776182][ T0] softirqs last enabled at (11726): [<c249c90a>] __do_softirq+0xa/0xc
[ 6.777581][ T0] softirqs last disabled at (11721): [<c249c90a>] __do_softirq+0xa/0xc
[ 6.778962][ T0] ---[ end trace 0000000000000000 ]---
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20261104/202611040239.b33be21c-lkp@intel.com
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-11-04 1:29 [linus:master] [x86/cpu] 3eaa50e1e2: WARNING:at_arch/x86/mm/tlb.c:#switch_mm_irqs_off kernel test robot
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