Greeting,
FYI, we noticed WARNING:at_kernel/locking/lockdep.c:#__lock_acquire due to commit (built with gcc-11):
commit: 90d0a9b894dd6b859a48fc21d52b0cf21b080d32 ("locking/lockdep: Improve the deadlock scenario print for sync and read lock")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master
[test failed on linux-next/master 80bd9028fecadae4e8e3a278cd32d74badc2a6e0]
in testcase: kernel-selftests
version: kernel-selftests-x86_64-d4cf28ee-1_20230110
with following parameters:
group: locking
test-description: The kernel contains a set of "self tests" under the tools/testing/selftests/ directory. These are intended to be small unit tests to exercise individual code paths in the kernel.
test-url: https://www.kernel.org/doc/Documentation/kselftest.txt
on test machine: 4 threads Intel(R) Xeon(R) CPU E3-1225 v5 @ 3.30GHz (Skylake) with 16G memory
caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
If you fix the issue, kindly add following tag
| Reported-by: kernel test robot <[email protected]>
| Link: https://lore.kernel.org/oe-lkp/[email protected]
[ 84.353969][ T36] ------------[ cut here ]------------
[ 84.359311][ T36] DEBUG_LOCKS_WARN_ON(hlock->references < references)
[ 84.359317][ T36] WARNING: CPU: 2 PID: 36 at kernel/locking/lockdep.c:4992 __lock_acquire+0xdc0/0x1840
[ 84.375456][ T36] Modules linked in: test_ww_mutex(+) openvswitch nf_conncount nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 btrfs blake2b_generic xor raid6_pq intel_rapl_msr zstd_compress libcrc32c intel_rapl_common x86_pkg_temp_thermal intel_powerclamp sd_mod t10_pi coretemp crc64_rocksoft_generic kvm_intel crc64_rocksoft crc64 sg kvm ipmi_devintf irqbypass crct10dif_pclmul ipmi_msghandler crc32_pclmul i915 crc32c_intel ghash_clmulni_intel drm_buddy sha512_ssse3 intel_gtt mei_wdt drm_display_helper rapl ahci ttm libahci intel_cstate mei_me wmi_bmof drm_kms_helper intel_uncore syscopyarea serio_raw i2c_i801 sysfillrect video libata mei sysimgblt i2c_smbus intel_pch_thermal ie31200_edac intel_pmc_core wmi acpi_pad tpm_infineon binfmt_misc fuse drm ip_tables
[ 84.443239][ T36] CPU: 2 PID: 36 Comm: kworker/u8:3 Not tainted 6.2.0-rc1-00188-g90d0a9b894dd #1
[ 84.452223][ T36] Hardware name: HP HP Z238 Microtower Workstation/8183, BIOS N51 Ver. 01.63 10/05/2017
[ 84.461817][ T36] Workqueue: test-ww_mutex stress_inorder_work [test_ww_mutex]
[ 84.469249][ T36] RIP: 0010:__lock_acquire+0xdc0/0x1840
[ 84.474682][ T36] Code: d2 0f 85 92 09 00 00 44 8b 25 74 77 f7 03 45 85 e4 0f 85 ee fd ff ff 48 c7 c6 80 80 a9 83 48 c7 c7 60 50 a9 83 e8 4a ad 35 02 <0f> 0b e9 d7 fd ff ff 41 bf 02 00 00 00 e9 e6 f7 ff ff e8 e9 14 e3
[ 84.494184][ T36] RSP: 0018:ffffc900002df8a8 EFLAGS: 00010086
[ 84.500122][ T36] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
[ 84.507976][ T36] RDX: 0000000000000027 RSI: 0000000000000004 RDI: fffff5200005bf07
[ 84.515826][ T36] RBP: ffff888100a20000 R08: 0000000000000001 R09: ffff88837f52898b
[ 84.523691][ T36] R10: ffffed106fea5131 R11: 0000000000000001 R12: 0000000000000000
[ 84.531554][ T36] R13: 0000000000000000 R14: 00000000000000a0 R15: 0000000000000000
[ 84.539407][ T36] FS: 0000000000000000(0000) GS:ffff88837f500000(0000) knlGS:0000000000000000
[ 84.548215][ T36] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 84.554697][ T36] CR2: 0000561259596932 CR3: 000000043ce2a003 CR4: 00000000003706e0
[ 84.562552][ T36] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 84.570407][ T36] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 84.578261][ T36] Call Trace:
[ 84.581421][ T36] <TASK>
[ 84.584228][ T36] lock_acquire+0x19a/0x500
[ 84.588604][ T36] ? stress_inorder_work+0x273/0x6a0 [test_ww_mutex]
[ 84.595156][ T36] ? lock_sync+0x170/0x170
[ 84.599447][ T36] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 84.605479][ T36] ? lock_is_held_type+0x9c/0x110
[ 84.610380][ T36] __ww_mutex_lock+0x1c3/0x2de0
[ 84.616144][ T36] ? stress_inorder_work+0x273/0x6a0 [test_ww_mutex]
[ 84.622697][ T36] ? lock_is_held_type+0x9c/0x110
[ 84.627610][ T36] ? stress_inorder_work+0x273/0x6a0 [test_ww_mutex]
[ 84.634161][ T36] ? stress_inorder_work+0x302/0x6a0 [test_ww_mutex]
[ 84.640713][ T36] ? mutex_lock_interruptible_nested+0x20/0x20
[ 84.646766][ T36] ? __mutex_unlock_slowpath+0x161/0x5e0
[ 84.652270][ T36] ? bit_wait_timeout+0x170/0x170
[ 84.657167][ T36] ? lock_is_held_type+0x9c/0x110
[ 84.662067][ T36] ? ww_mutex_lock+0x3c/0x150
[ 84.666616][ T36] ww_mutex_lock+0x3c/0x150
[ 84.670985][ T36] stress_inorder_work+0x273/0x6a0 [test_ww_mutex]
[ 84.677367][ T36] ? get_random_order+0x150/0x150 [test_ww_mutex]
[ 84.683652][ T36] ? ethnl_set_rings+0x7a0/0x1170
[ 84.688548][ T36] ? lock_is_held_type+0x9c/0x110
[ 84.693448][ T36] process_one_work+0x7dc/0x12e0
[ 84.698259][ T36] ? lock_sync+0x170/0x170
[ 84.702548][ T36] ? pwq_dec_nr_in_flight+0x230/0x230
[ 84.707795][ T36] ? rwlock_bug+0x90/0x90
[ 84.712605][ T36] worker_thread+0x5b0/0xed0
[ 84.717072][ T36] ? __kthread_parkme+0xd9/0x1d0
[ 84.721879][ T36] ? schedule+0x152/0x230
[ 84.726075][ T36] ? process_one_work+0x12e0/0x12e0
[ 84.731148][ T36] ? process_one_work+0x12e0/0x12e0
[ 84.736215][ T36] kthread+0x293/0x330
[ 84.740155][ T36] ? kthread_complete_and_exit+0x30/0x30
[ 84.745656][ T36] ret_from_fork+0x1f/0x30
[ 84.749967][ T36] </TASK>
[ 84.752863][ T36] irq event stamp: 20089
[ 84.756971][ T36] hardirqs last enabled at (20089): [<ffffffff8380148a>] asm_sysvec_apic_timer_interrupt+0x1a/0x20
[ 84.767608][ T36] hardirqs last disabled at (20088): [<ffffffff8379dd2f>] sysvec_apic_timer_interrupt+0xf/0x90
[ 84.777807][ T36] softirqs last enabled at (14440): [<ffffffff837cbf37>] __do_softirq+0x527/0x87c
[ 84.786961][ T36] softirqs last disabled at (14435): [<ffffffff811c8e4b>] __irq_exit_rcu+0x18b/0x1f0
[ 84.796289][ T36] ---[ end trace 0000000000000000 ]---
To reproduce:
git clone https://github.com/intel/lkp-tests.git
cd lkp-tests
sudo bin/lkp install job.yaml # job file is attached in this email
bin/lkp split-job --compatible job.yaml # generate the yaml file for lkp run
sudo bin/lkp run generated-yaml-file
# if come across any failure that blocks the test,
# please remove ~/.lkp and /lkp dir to run from a clean state.
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests