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charset=UTF-8 Content-Transfer-Encoding: 8bit On 4/15/24 3:14 AM, Changhui Zhong wrote: > Hello, > > repo:https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git > branch:for-next > commit HEAD:f2738f2440eb573094ef6f09cca915ae37f2f8bc > > hit this issue on recent upstream，reproduced with ubdsrv, trigger this > issue on "running generic/005" and "running generic/006", > > # cd ubdsrv > # make test T=generic > > [ 993.347470] WARNING: CPU: 13 PID: 4628 at io_uring/io_uring.c:2835 > io_ring_exit_work+0x2b6/0x2e0 > [ 993.357304] Modules linked in: ext4 mbcache jbd2 rfkill sunrpc > dm_multipath intel_rapl_msr intel_rapl_common intel_uncore_frequency > intel_uncore_frequency_common i10nm_edac nfit libnvdimm > x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm ipmi_ssif > rapl intel_cstate mgag200 iTCO_wdt dax_hmem iTCO_vendor_support > cxl_acpi mei_me i2c_algo_bit cxl_core i2c_i801 drm_shmem_helper > isst_if_mmio isst_if_mbox_pci drm_kms_helper intel_uncore mei einj > ioatdma pcspkr i2c_smbus isst_if_common intel_vsec intel_pch_thermal > ipmi_si dca ipmi_devintf ipmi_msghandler acpi_pad acpi_power_meter drm > fuse xfs libcrc32c sd_mod t10_pi sg ahci crct10dif_pclmul libahci > crc32_pclmul crc32c_intel libata tg3 ghash_clmulni_intel wmi dm_mirror > dm_region_hash dm_log dm_mod > [ 993.431516] CPU: 13 PID: 4628 Comm: kworker/u96:2 Not tainted 6.9.0-rc3+ #1 > [ 993.439297] Hardware name: Lenovo ThinkSystem SR650 V2/7Z73CTO1WW, > BIOS AFE120G-1.40 09/20/2022 > [ 993.449015] Workqueue: iou_exit io_ring_exit_work > [ 993.454275] RIP: 0010:io_ring_exit_work+0x2b6/0x2e0 > [ 993.459729] Code: 89 e7 e8 6d de ff ff 48 8b 44 24 58 65 48 2b 04 > 25 28 00 00 00 75 2e 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc > cc cc cc <0f> 0b 41 be 60 ea 00 00 e9 45 fe ff ff 0f 0b e9 1d ff ff ff > e8 c1 > [ 993.480695] RSP: 0018:ff70b0c247657dd0 EFLAGS: 00010287 > [ 993.486533] RAX: 00000001000a94c0 RBX: ff26a781c5b48448 RCX: 0000000000000000 > [ 993.494506] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ff26a781c5b48040 > [ 993.502475] RBP: ff70b0c247657e60 R08: 0000000000000000 R09: ffffffffbb254ca0 > [ 993.510445] R10: 0000000000000000 R11: 0000000000000000 R12: ff26a781c5b48000 > [ 993.518415] R13: ff26a781c5b48040 R14: 0000000000000032 R15: 0000000000000000 > [ 993.526387] FS: 0000000000000000(0000) GS:ff26a784efa80000(0000) > knlGS:0000000000000000 > [ 993.535427] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > [ 993.541848] CR2: 00007ff5a794f004 CR3: 000000003ea20006 CR4: 0000000000771ef0 > [ 993.549820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > [ 993.557790] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > [ 993.565761] PKRU: 55555554 > [ 993.568787] Call Trace: > [ 993.571523] > [ 993.573871] ? __warn+0x7f/0x130 > [ 993.577486] ? io_ring_exit_work+0x2b6/0x2e0 > [ 993.582259] ? report_bug+0x18a/0x1a0 > [ 993.586358] ? handle_bug+0x3c/0x70 > [ 993.590262] ? exc_invalid_op+0x14/0x70 > [ 993.594551] ? asm_exc_invalid_op+0x16/0x20 > [ 993.599234] ? io_ring_exit_work+0x2b6/0x2e0 > [ 993.604006] ? try_to_wake_up+0x21e/0x600 > [ 993.608490] process_one_work+0x193/0x3d0 > [ 993.612969] worker_thread+0x2fc/0x410 > [ 993.617161] ? __pfx_worker_thread+0x10/0x10 > [ 993.621934] kthread+0xdc/0x110 > [ 993.625448] ? __pfx_kthread+0x10/0x10 > [ 993.629640] ret_from_fork+0x2d/0x50 > [ 993.633640] ? __pfx_kthread+0x10/0x10 > [ 993.637830] ret_from_fork_asm+0x1a/0x30 > [ 993.642219] > [ 993.644661] ---[ end trace 0000000000000000 ]--- I can't reproduce this here, fwiw. Ming, something you've seen? -- Jens Axboe