[AMD Official Use Only - General] Hi, With next-20240327, we see soft lockup on running fstress on ext4 filesystem. I have a loop device created and running fsstress from LTP. The LTP fsstress runs on the loop device on a combination of raid or no raid, lv and without lv, ext4 fs. (02/20) avocado-misc-tests/io/disk/ltp_fsstress.py:LtpFs.test_fsstress_run;run-fs-ext4-lv-lv-raid-no_raid-c2c0: STARTED Mar 27 11:47:42 system_name kernel: [13803.399479] CPU: 73 PID: 341283 Comm: kworker/u514:2 Not tainted 6.9.0-rc1-next-20240327-1711524620260 #1 Mar 27 11:47:42 system_name kernel: [13803.399482] Hardware name: Dell Inc. PowerEdge R6515/07PXPY, BIOS 2.13.3 09/12/2023 Mar 27 11:47:42 system_name kernel: [13803.399484] Workqueue: loop6 loop_rootcg_workfn Mar 27 11:47:42 system_name kernel: [13803.399491] RIP: 0010:native_queued_spin_lock_slowpath+0x86/0x300 Mar 27 11:47:42 system_name kernel: [13803.399497] Code: 92 c2 41 8b 04 24 0f b6 d2 c1 e2 08 30 e4 09 d0 a9 00 01 ff ff 0f 85 f2 01 00 00 85 c0 74 14 41 0f b6 04 24 84 c0 74 0b f3 90 <41> 0f b6 04 24 84 c0 75 f5 b8 01 00 00 00 66 41 89 04 24 5b 41 5c Mar 27 11:47:42 system_name kernel: [13803.399499] RSP: 0018:ffffb5eb037bf9b8 EFLAGS: 00000202 Mar 27 11:47:42 system_name kernel: [13803.399501] RAX: 0000000000000001 RBX: ffff90fc123ce068 RCX: 0000000000000000 Mar 27 11:47:42 system_name kernel: [13803.399503] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff90fc123ce0c0 Mar 27 11:47:42 system_name kernel: [13803.399504] RBP: ffffb5eb037bf9e0 R08: 0000000000000000 R09: ffffb5eae0704500 Mar 27 11:47:42 system_name kernel: [13803.399506] R10: 0000000000000000 R11: ffffb5eae0704500 R12: ffff90fc123ce0c0 Mar 27 11:47:42 system_name kernel: [13803.399507] R13: ffff90fc16a75140 R14: 000000010033682a R15: ffff90fc123ce0c0 Mar 27 11:47:42 system_name kernel: [13803.399509] FS: 0000000000000000(0000) GS:ffff910b5fa80000(0000) knlGS:0000000000000000 Mar 27 11:47:42 system_name kernel: [13803.399511] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Mar 27 11:47:42 system_name kernel: [13803.399512] CR2: 00007fd6ada61ea0 CR3: 00000010b4724003 CR4: 0000000000770ef0 Mar 27 11:47:42 system_name kernel: [13803.399514] PKRU: 55555554 Mar 27 11:47:42 system_name kernel: [13803.399515] Call Trace: Mar 27 11:47:42 system_name kernel: [13803.399517] <IRQ> Mar 27 11:47:42 system_name kernel: [13803.399521] ? show_regs+0x6d/0x80 Mar 27 11:47:42 system_name kernel: [13803.399526] ? watchdog_timer_fn+0x20e/0x290 Mar 27 11:47:42 system_name kernel: [13803.399530] ? __pfx_watchdog_timer_fn+0x10/0x10 Mar 27 11:47:42 system_name kernel: [13803.399533] ? __hrtimer_run_queues+0x111/0x290 Mar 27 11:47:42 system_name kernel: [13803.399536] ? srso_alias_return_thunk+0x5/0xfbef5 Mar 27 11:47:42 system_name kernel: [13803.399541] ? hrtimer_interrupt+0x108/0x240 Mar 27 11:47:42 system_name kernel: [13803.399546] ? __sysvec_apic_timer_interrupt+0x5d/0x150 Mar 27 11:47:42 system_name kernel: [13803.399549] ? sysvec_apic_timer_interrupt+0x80/0xb0 Mar 27 11:47:42 system_name kernel: [13803.399554] </IRQ> Mar 27 11:47:42 system_name kernel: [13803.399555] <TASK> Mar 27 11:47:42 system_name kernel: [13803.399556] ? asm_sysvec_apic_timer_interrupt+0x1f/0x30 Mar 27 11:47:42 system_name kernel: [13803.399562] ? native_queued_spin_lock_slowpath+0x86/0x300 Mar 27 11:47:42 system_name kernel: [13803.399566] _raw_spin_lock+0x2d/0x40 Mar 27 11:47:42 system_name kernel: [13803.399569] __wb_update_bandwidth+0x38/0x1e0 Mar 27 11:47:42 system_name kernel: [13803.399574] do_writepages+0x256/0x280 Mar 27 11:47:42 system_name kernel: [13803.399579] filemap_fdatawrite_wbc+0x79/0xb0 Mar 27 11:47:42 system_name kernel: [13803.399583] ? inotify_free_event+0x15/0x20 Mar 27 11:47:42 system_name kernel: [13803.399586] __filemap_fdatawrite_range+0x6d/0x90 Mar 27 11:47:42 system_name kernel: [13803.399595] file_write_and_wait_range+0x5c/0xb0 Mar 27 11:47:42 system_name kernel: [13803.399598] ext4_sync_file+0x8f/0x440 Mar 27 11:47:42 system_name kernel: [13803.399602] ? srso_alias_return_thunk+0x5/0xfbef5 Mar 27 11:47:42 system_name kernel: [13803.399605] vfs_fsync+0x56/0x90 Mar 27 11:47:42 system_name kernel: [13803.399608] ? blk_mq_complete_request+0x58/0x80 Mar 27 11:47:42 system_name kernel: [13803.399613] loop_process_work+0x3c4/0x8a0 Mar 27 11:47:42 system_name kernel: [13803.399616] ? srso_alias_return_thunk+0x5/0xfbef5 Mar 27 11:47:42 system_name kernel: [13803.399622] loop_rootcg_workfn+0x1f/0x30 Mar 27 11:47:42 system_name kernel: [13803.399624] process_one_work+0x188/0x3d0 Mar 27 11:47:42 system_name kernel: [13803.399629] ? __pfx_worker_thread+0x10/0x10 Mar 27 11:47:42 system_name kernel: [13803.399631] worker_thread+0x2ce/0x3e0 Mar 27 11:47:42 system_name kernel: [13803.399634] ? __pfx_worker_thread+0x10/0x10 Mar 27 11:47:42 system_name kernel: [13803.399637] kthread+0xe8/0x120 Mar 27 11:47:42 system_name kernel: [13803.399639] ? __pfx_kthread+0x10/0x10 Mar 27 11:47:42 system_name kernel: [13803.399642] ret_from_fork+0x40/0x60 Mar 27 11:47:42 system_name kernel: [13803.399645] ? __pfx_kthread+0x10/0x10 Mar 27 11:47:42 system_name kernel: [13803.399647] ret_from_fork_asm+0x1a/0x30 Mar 27 11:47:42 system_name kernel: [13803.399654] </TASK> Happens with next-20240328 as well Steps to reproduce: 1. Clone and install https://github.com/linux-test-project/ltp 2. Get a disk ready or create loop device to be treated as disk. 3. Run fsstress from testcases/kernel/fs/fsstress - ./fsstress -d disk_name -n 250 -p 250 -r -l 1 The disk can be raw / raid created on it / lv created on it / mounted as ext4 fs. -- Regards Narasimhan V
