[DEBUG] Kernel BUG in ocf/metadata/metadata_raw.c:206! with OCF_CLEANING_DEBUG=1

[Deixx]

Description

When OCF_CLEANING_DEBUG is set to 1, the cleaner thread causes kernel BUG.

Steps to Reproduce

1. Set OCF_CLEANING_DEBUG=1 in open-cas-linux/ocf/src/cleaning/alru.c
2. Compile and install OCL
3. Start cache
4. Wait for cleaner thread

Logs

[ 2302.255026] ------------[ cut here ]------------
[ 2302.255508] kernel BUG at /root/github/open-cas-linux/modules/cas_cache/src/ocf/metadata/metadata_raw.c:206!
[ 2302.256544] invalid opcode: 0000 [#1] SMP NOPTI
[ 2302.257007] CPU: 10 PID: 76494 Comm: cas_cl_cache1 Tainted: G           O      5.11.16-1.el8.elrepo.x86_64 #1
[ 2302.257948] Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.16.0-4.module_el8+603+e0ca2c01 04/01/2014
[ 2302.258793] RIP: 0010:_raw_ram_access+0x1e/0x20 [cas_cache]
[ 2302.259387] Code: c0 5b 5d 41 5c c3 0f 0b 0f 0b 0f 0b 0f 1f 44 00 00 48 85 f6 74 14 89 d2 48 3b 56 18 73 0c 8b 46 0c 48 0f af c2 48 03 46 40 c3 <0f> 0b 0f 1f 44 00 00 89 f2 48 89 d0 48 3b 57 18 73 06 31 d2 f7 77
[ 2302.261164] RSP: 0018:ff5a3a3ec8767dd0 EFLAGS: 00010246
[ 2302.261673] RAX: ffffffffc08e9370 RBX: ff5a3a3ec878b000 RCX: ff5a3a3ec84f1000
[ 2302.262346] RDX: 00000000002772c0 RSI: ff5a3a3ec84ed3a0 RDI: ff5a3a3ec8239000
[ 2302.263027] RBP: 0000000067ce9cbf R08: 0014e0e5e1577606 R09: ff43b22b9a86d000
[ 2302.263700] R10: 0000000000000001 R11: 0000021801194331 R12: ff5a3a3ec8239000
[ 2302.264369] R13: 00000000002772c0 R14: ff5a3a3ec878b058 R15: ff5a3a3ec8239080
[ 2302.265050] FS:  0000000000000000(0000) GS:ff43b2335fd00000(0000) knlGS:0000000000000000
[ 2302.265811] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2302.266351] CR2: 00007f0106701080 CR3: 00000008f4a3c002 CR4: 0000000000771ee0
[ 2302.267033] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2302.267777] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2302.268458] PKRU: 55555554
[ 2302.268721] Call Trace:
[ 2302.268970]  cleaning_alru_perform_cleaning+0x201/0x650 [cas_cache]
[ 2302.269641]  ocf_cleaner_run+0x11c/0x160 [cas_cache]
[ 2302.270126]  _cas_cleaner_thread+0xf4/0x210 [cas_cache]
[ 2302.270719]  ? wait_woken+0x80/0x80
[ 2302.271089]  ? _cas_cleaner_complete+0x20/0x20 [cas_cache]
[ 2302.271626]  kthread+0x116/0x130
[ 2302.271959]  ? kthread_park+0x80/0x80
[ 2302.272315]  ret_from_fork+0x1f/0x30
[ 2302.272679] Modules linked in: cas_cache(O) rfkill intel_rapl_msr intel_rapl_common nfit libnvdimm kvm_intel kvm iTCO_wdt intel_pmc_bxt ppdev iTCO_vendor_support irqbypass virtio_gpu rapl virtio_dma_buf drm_kms_helper i2c_i801 parport_pc pcspkr drm joydev virtio_balloon lpc_ich i2c_smbus parport syscopyarea sysfillrect sysimgblt fb_sys_fops xfs libcrc32c nvme_tcp nvme_fabrics nvme ahci crct10dif_pclmul libahci crc32_pclmul crc32c_intel nvme_core libata t10_pi ghash_clmulni_intel serio_raw virtio_net virtio_blk net_failover failover sunrpc dm_mirror dm_region_hash dm_log dm_mod fuse [last unloaded: cas_cache]
[ 2302.277830] ---[ end trace 899de942041a5303 ]---
[ 2302.278294] RIP: 0010:_raw_ram_access+0x1e/0x20 [cas_cache]
[ 2302.278865] Code: c0 5b 5d 41 5c c3 0f 0b 0f 0b 0f 0b 0f 1f 44 00 00 48 85 f6 74 14 89 d2 48 3b 56 18 73 0c 8b 46 0c 48 0f af c2 48 03 46 40 c3 <0f> 0b 0f 1f 44 00 00 89 f2 48 89 d0 48 3b 57 18 73 06 31 d2 f7 77
[ 2302.280646] RSP: 0018:ff5a3a3ec8767dd0 EFLAGS: 00010246
[ 2302.281157] RAX: ffffffffc08e9370 RBX: ff5a3a3ec878b000 RCX: ff5a3a3ec84f1000
[ 2302.281840] RDX: 00000000002772c0 RSI: ff5a3a3ec84ed3a0 RDI: ff5a3a3ec8239000
[ 2302.282531] RBP: 0000000067ce9cbf R08: 0014e0e5e1577606 R09: ff43b22b9a86d000
[ 2302.283225] R10: 0000000000000001 R11: 0000021801194331 R12: ff5a3a3ec8239000
[ 2302.283924] R13: 00000000002772c0 R14: ff5a3a3ec878b058 R15: ff5a3a3ec8239080
[ 2302.284611] FS:  0000000000000000(0000) GS:ff43b2335fd00000(0000) knlGS:0000000000000000
[ 2302.285384] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2302.285951] CR2: 00007f0106701080 CR3: 00000008f4a3c002 CR4: 0000000000771ee0
[ 2302.286637] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 2302.287317] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 2302.288009] PKRU: 55555554
[ 2302.288274] Kernel panic - not syncing: Fatal exception
[ 2302.288930] Kernel Offset: 0x1be00000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 2302.289955] ---[ end Kernel panic - not syncing: Fatal exception ]---

Your Environment

• OpenCAS version (commit hash or tag): 24.09.0.0932.master d4de219
• OCF version: a12496320c1852b71ae91b3688e6f1d4697c7fd4 (with OCF_CLEANING_DEBUG=1)
• Operating System: CentOS Stream 8 (VM)
• Kernel version: 5.11.16-1.el8.elrepo.x86_64