Description of problem: 执行ltp用例can_bcm01用例导致环境crash： 部分vmcore-dmesg日志： [ 241.346222] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 [ 241.346348] IP: [<ffffffff91b8e517>] rb_insert_color+0x17/0x170 [ 241.346437] PGD 41c92a067 PUD 412ecd067 PMD 0 [ 241.346510] Oops: 0000 [#1] SMP [ 241.346563] Modules linked in: can_bcm can vcan tcp_diag inet_diag dm_mirror dm_region_hash dm_log dm_mod nfit libnvdimm intel_powerclamp iosf_mbi crc32_pclmul ghash_clmulni_intel ppdev aesni_intel lrw gf128mul glue_helper ablk_helper cryptd parport_pc virtio_balloon parport i2c_piix4 pcspkr ip_tables ext4 mbcache jbd2 virtio_net virtio_console net_failover virtio_blk failover cirrus drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm crct10dif_pclmul crct10dif_common crc32c_intel serio_raw virtio_pci virtio_ring floppy virtio drm_panel_orientation_quirks [ 241.347412] CPU: 1 PID: 1913 Comm: can_bcm01 Kdump: loaded Not tainted 3.10.0-1160.59.1.0.1.an7.x86_64 #1 [ 241.347538] Hardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS 90210cb 04/01/2014 [ 241.347641] task: ffff9b64d3a65280 ti: ffff9b617914c000 task.ti: ffff9b617914c000 [ 241.347741] RIP: 0010:[<ffffffff91b8e517>] [<ffffffff91b8e517>] rb_insert_color+0x17/0x170 [ 241.347857] RSP: 0000:ffff9b64efc83ed0 EFLAGS: 00010046 [ 241.347929] RAX: 0000000000000000 RBX: ffff9b64efc95f80 RCX: ffff9b64dc4a2250 [ 241.348024] RDX: ffff9b64dc4a2250 RSI: ffff9b64efc959f0 RDI: ffff9b64efc95f80 [ 241.348120] RBP: ffff9b64efc83ed0 R08: 00000037a4cb7b00 R09: ffff9b64efc83de0 [ 241.348217] R10: 0000000000004675 R11: 0000000000000005 R12: ffff9b64efc959f0 [ 241.348318] R13: ffff9b64efc959e0 R14: 0000000000000001 R15: ffff9b64efc95ad8 [ 241.348414] FS: 00007fd6f095c700(0000) GS:ffff9b64efc80000(0000) knlGS:0000000000000000 [ 241.348522] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 241.348599] CR2: 0000000000000008 CR3: 000000041dccc000 CR4: 00000000007606e0 [ 241.348697] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 241.348793] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 241.348889] PKRU: 55555554 [ 241.348927] Call Trace: [ 241.348963] <IRQ> [ 241.348994] [<ffffffff91b91350>] timerqueue_add+0x60/0xb0 [ 241.349077] [<ffffffff918c9875>] enqueue_hrtimer+0x25/0x80 [ 241.349153] [<ffffffff918ca28c>] __hrtimer_run_queues+0x13c/0x270 [ 241.349239] [<ffffffff918ca7bf>] hrtimer_interrupt+0xaf/0x1d0 [ 241.349325] [<ffffffff9185ce2b>] local_apic_timer_interrupt+0x3b/0x60 [ 241.349415] [<ffffffff91f9ea23>] smp_apic_timer_interrupt+0x43/0x60 [ 241.349502] [<ffffffff91f9afba>] apic_timer_interrupt+0x16a/0x170 [ 241.349585] <EOI> [ 241.349614] Code: [ 241.349647] 48 89 d0 48 83 e0 fc 75 eb 5d c3 31 c0 5d c3 0f 1f 44 00 00 55 48 8b 17 48 89 e5 48 85 d2 0f 84 21 01 00 00 48 8b 02 a8 01 75 62 <48> 8b 48 08 49 89 c0 48 39 ca 0f 84 93 00 00 00 48 85 c9 74 05 [ 241.350399] RIP [<ffffffff91b8e517>] rb_insert_color+0x17/0x170 [ 241.350776] RSP <ffff9b64efc83ed0> [ 241.351111] CR2: 0000000000000008 Version-Release number of selected component (if applicable): # cat /etc/image-id image_name="Anolis OS 7.9 RHCK 64 bit" image_id="anolisos_7_9_x64_20G_rhck_alibase_20220316.vhd" release_date="20220316123009" # uname -r 3.10.0-1160.59.1.0.1.an7.x86_64 How reproducible: Steps to Reproduce: 1.下载编译ltp测试用例 git clone https://github.com/linux-test-project/ltp.git make autotools ./configure make make install 2.执行用例 cd /opt/ltp ./runltp -f can -s can_bcm01 Actual results: 环境crash复位。 Expected results: 用例pass，环境正常。 Additional info: [root@iZbp116tlh2h2474lremrvZ ltp]# uname -r 3.10.0-1160.59.1.0.1.an7.x86_64 [root@iZbp116tlh2h2474lremrvZ ltp]# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 4 On-line CPU(s) list: 0-3 Thread(s) per core: 2 Core(s) per socket: 2 Socket(s): 1 NUMA node(s): 1 Vendor ID: GenuineIntel CPU family: 6 Model: 106 Model name: Intel(R) Xeon(R) Platinum 8369B CPU @ 2.70GHz Stepping: 6 CPU MHz: 2699.998 BogoMIPS: 5399.99 Hypervisor vendor: KVM Virtualization type: full L1d cache: 48K L1i cache: 32K L2 cache: 1280K L3 cache: 49152K NUMA node0 CPU(s): 0-3 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc eagerfpu pni pclmulqdq monitor ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single ibrs_enhanced fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid avx512f avx512dq rdseed adx smap avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 arat avx512vbmi pku ospke avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq arch_capabilities [root@iZbp116tlh2h2474lremrvZ ltp]# free -mh total used free shared buff/cache available Mem: 15G 362M 11G 420K 3.1G 14G Swap: 0B 0B 0B
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