Hello,
kernel test robot noticed "WARNING:inconsistent_lock_state" on:
commit: 000f7cce0fe19452a5ecbc350b16d7d8ac68d8ba ("mm, slub: cheaper locking for percpu sheaves")
https://git.kernel.org/cgit/linux/kernel/git/vbabka/linux.git slub-percpu-sheaves-v1r1
in testcase: boot
compiler: clang-18
test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
(please refer to attached dmesg/kmsg for entire log/backtrace)
+-------------------------------------------------+------------+------------+
| | aa03930ed5 | 000f7cce0f |
+-------------------------------------------------+------------+------------+
| WARNING:inconsistent_lock_state | 0 | 18 |
| inconsistent{SOFTIRQ-ON-W}->{IN-SOFTIRQ-W}usage | 0 | 18 |
| RIP:default_idle | 0 | 18 |
+-------------------------------------------------+------------+------------+
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 <oliver.sang@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-lkp/202409031302.dba16910-lkp@xxxxxxxxx
[ 28.196191][ C1] WARNING: inconsistent lock state
[ 28.196613][ C1] 6.10.0-rc1-00013-g000f7cce0fe1 #1 Not tainted
[ 28.197105][ C1] --------------------------------
[ 28.197503][ C1] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[ 28.198039][ C1] swapper/1/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[ 28.198510][ C1] ffffe8ffffd00d60 (&pcs->lock.llock){+.?.}-{2:2}, at: kmem_cache_alloc_noprof (include/linux/local_lock_internal.h:29)
[ 28.199302][ C1] {SOFTIRQ-ON-W} state was registered at:
[ 28.199749][ C1] lock_acquire (kernel/locking/lockdep.c:5754)
[ 28.200114][ C1] kmem_cache_alloc_noprof (include/linux/local_lock_internal.h:29)
[ 28.200552][ C1] do_set_mempolicy (mm/mempolicy.c:333)
[ 28.200941][ C1] numa_policy_init (mm/mempolicy.c:3127)
[ 28.201328][ C1] start_kernel (init/main.c:1063)
[ 28.201689][ C1] x86_64_start_reservations (??:?)
[ 28.202121][ C1] x86_64_start_kernel (arch/x86/kernel/head64.c:437)
[ 28.202519][ C1] common_startup_64 (arch/x86/kernel/head_64.S:421)
[ 28.202912][ C1] irq event stamp: 38366
[ 28.203242][ C1] hardirqs last enabled at (38366): _raw_spin_unlock_irqrestore (arch/x86/include/asm/irqflags.h:42 arch/x86/include/asm/irqflags.h:77 arch/x86/include/asm/irqflags.h:135 include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
[ 28.204062][ C1] hardirqs last disabled at (38365): _raw_spin_lock_irqsave (arch/x86/include/asm/preempt.h:79 include/linux/spinlock_api_smp.h:109 kernel/locking/spinlock.c:162)
[ 28.204877][ C1] softirqs last enabled at (38338): irq_exit_rcu (kernel/softirq.c:651)
[ 28.205590][ C1] softirqs last disabled at (38345): irq_exit_rcu (kernel/softirq.c:651)
[ 28.206304][ C1]
[ 28.206304][ C1] other info that might help us debug this:
[ 28.206933][ C1] Possible unsafe locking scenario:
[ 28.206933][ C1]
[ 28.207514][ C1] CPU0
[ 28.207770][ C1] ----
[ 28.208027][ C1] lock(&pcs->lock.llock);
[ 28.208384][ C1] <Interrupt>
[ 28.208662][ C1] lock(&pcs->lock.llock);
[ 28.209028][ C1]
[ 28.209028][ C1] *** DEADLOCK ***
[ 28.209028][ C1]
[ 28.209657][ C1] 1 lock held by swapper/1/0:
[ 28.210020][ C1] #0: ffffffff882dee40 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb_list_internal (include/linux/rcupdate.h:329 include/linux/rcupdate.h:781 net/core/dev.c:5844)
[ 28.210872][ C1]
[ 28.210872][ C1] stack backtrace:
[ 28.211329][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.10.0-rc1-00013-g000f7cce0fe1 #1
[ 28.212019][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[ 28.212836][ C1] Call Trace:
[ 28.213096][ C1] <IRQ>
[ 28.213321][ C1] dump_stack_lvl (lib/dump_stack.c:116)
[ 28.213678][ C1] valid_state (kernel/locking/lockdep.c:?)
[ 28.214029][ C1] mark_lock_irq (kernel/locking/lockdep.c:?)
[ 28.214383][ C1] ? stack_trace_save (kernel/stacktrace.c:123)
[ 28.214766][ C1] ? save_trace (kernel/locking/lockdep.c:?)
[ 28.215113][ C1] ? swiotlb_tbl_map_single (include/linux/spinlock.h:? kernel/dma/swiotlb.c:1116 kernel/dma/swiotlb.c:1267 kernel/dma/swiotlb.c:1402)
[ 28.215557][ C1] mark_lock (kernel/locking/lockdep.c:4678)
[ 28.215892][ C1] __lock_acquire (kernel/locking/lockdep.c:?)
[ 28.216270][ C1] lock_acquire (kernel/locking/lockdep.c:5754)
[ 28.216634][ C1] ? kmem_cache_alloc_noprof (include/linux/local_lock_internal.h:29)
[ 28.217115][ C1] ? kmem_cache_alloc_noprof (include/linux/local_lock_internal.h:29)
[ 28.217546][ C1] kmem_cache_alloc_noprof (include/linux/local_lock_internal.h:29)
[ 28.217967][ C1] ? kmem_cache_alloc_noprof (include/linux/local_lock_internal.h:29)
[ 28.218401][ C1] ? skb_clone (net/core/skbuff.c:2053)
[ 28.218751][ C1] skb_clone (net/core/skbuff.c:2053)
[ 28.219085][ C1] ic_bootp_recv (include/linux/skbuff.h:2036)
[ 28.219442][ C1] ? lock_is_held_type (kernel/locking/lockdep.c:5495 kernel/locking/lockdep.c:5825)
[ 28.219837][ C1] ? ic_bootp_send_if (net/ipv4/ipconfig.c:990)
[ 28.220230][ C1] __netif_receive_skb_core (net/core/dev.c:? net/core/dev.c:5575)
[ 28.220715][ C1] __netif_receive_skb_list_core (net/core/dev.c:5701)
[ 28.221187][ C1] netif_receive_skb_list_internal (net/core/dev.c:5769)
[ 28.221668][ C1] ? netif_receive_skb_list_internal (include/linux/rcupdate.h:329 include/linux/rcupdate.h:781 net/core/dev.c:5844)
[ 28.222163][ C1] napi_complete_done (include/linux/list.h:37 include/net/gro.h:516 net/core/dev.c:6202)
[ 28.222556][ C1] ? e1000_alloc_jumbo_rx_buffers (drivers/net/ethernet/intel/e1000/e1000_main.c:4348)
[ 28.223031][ C1] e1000_clean (drivers/net/ethernet/intel/e1000/e1000_main.c:3809)
[ 28.223388][ C1] ? mark_lock (arch/x86/include/asm/bitops.h:227 arch/x86/include/asm/bitops.h:239 include/asm-generic/bitops/instrumented-non-atomic.h:142 kernel/locking/lockdep.c:228 kernel/locking/lockdep.c:4656)
[ 28.223728][ C1] ? __lock_acquire (kernel/locking/lockdep.c:?)
[ 28.224122][ C1] __napi_poll (net/core/dev.c:6721)
[ 28.224472][ C1] net_rx_action (net/core/dev.c:6790 net/core/dev.c:6906)
[ 28.224836][ C1] handle_softirqs (arch/x86/include/asm/jump_label.h:27 include/linux/jump_label.h:207 include/trace/events/irq.h:142 kernel/softirq.c:555)
[ 28.225210][ C1] ? irq_exit_rcu (kernel/softirq.c:651)
[ 28.225567][ C1] irq_exit_rcu (kernel/softirq.c:651)
[ 28.225910][ C1] common_interrupt (arch/x86/kernel/irq.c:278)
[ 28.226283][ C1] </IRQ>
[ 28.226515][ C1] <TASK>
[ 28.226745][ C1] asm_common_interrupt (arch/x86/include/asm/idtentry.h:693)
[ 28.227143][ C1] RIP: 0010:default_idle (arch/x86/include/asm/irqflags.h:37 arch/x86/include/asm/irqflags.h:72 arch/x86/kernel/process.c:743)
[ 28.227549][ C1] Code: 89 07 49 c7 c0 08 00 00 00 4d 29 c8 4c 01 c7 4c 29 c2 e9 72 ff ff ff f3 0f 1e fa eb 07 0f 00 2d 13 70 31 00 f3 0f 1e fa fb f4 <fa> c3 cc cc cc cc cc 66 0f 1f 44 00 00 f3 0f 1e fa e9 d7 ff ff ff
All code
========
0: 89 07 mov %eax,(%rdi)
2: 49 c7 c0 08 00 00 00 mov $0x8,%r8
9: 4d 29 c8 sub %r9,%r8
c: 4c 01 c7 add %r8,%rdi
f: 4c 29 c2 sub %r8,%rdx
12: e9 72 ff ff ff jmp 0xffffffffffffff89
17: f3 0f 1e fa endbr64
1b: eb 07 jmp 0x24
1d: 0f 00 2d 13 70 31 00 verw 0x317013(%rip) # 0x317037
24: f3 0f 1e fa endbr64
28: fb sti
29: f4 hlt
2a:* fa cli <-- trapping instruction
2b: c3 ret
2c: cc int3
2d: cc int3
2e: cc int3
2f: cc int3
30: cc int3
31: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
37: f3 0f 1e fa endbr64
3b: e9 d7 ff ff ff jmp 0x17
Code starting with the faulting instruction
===========================================
0: fa cli
1: c3 ret
2: cc int3
3: cc int3
4: cc int3
5: cc int3
6: cc int3
7: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1)
d: f3 0f 1e fa endbr64
11: e9 d7 ff ff ff jmp 0xffffffffffffffed
The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20240903/202409031302.dba16910-lkp@xxxxxxxxx
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
