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ISP2722-based 16/32Gb Fibre Channel to PCIe Adapter [1077:2261] (rev 01)     Subsystem: IBM Device [1014:0650]     Physical Slot: U78D8.ND0.FGD004S-P0-C2-C0     Device tree node: /sys/firmware/devicetree/base/pci@800000020000012/fibre-channel@0     Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr+ Stepping- SERR+ FastB2B- DisINTx-     Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR-   CR: 42000824  XER: 00000000 CFAR: c0000000006f440c IRQMASK: 1 GPR00: c00000000022434c c000000006797800 c0000000019b2500 c00000117db0ac28 GPR04: c00000117db0a520 0000000000000000 3949ffff40920078 0000000000000001 GPR08: c000000063bd3cf0 c00000000073a7a8 892100602e3f0000 7265677368657265 GPR12: c000000000026e60 c00000117fb4be80 0000000000000000 000000001eef2b00 GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR20: 0000000000000000 0000000000000000 0000000000000003 0000000000000001 GPR24: 0000638695346493 0000000000000002 0000000000000003 c00000117db0a480 GPR28: c00000117db0a480 0000000000000000 c00000117db0a520 c00000117db0ac28 NIP [c0000000006f4498] rb_erase+0x158/0x440 LR [c0000000006f9c18] timerqueue_del+0x58/0xa0 Call Trace: [c000000006797800] [0000000000000003] 0x3 (unreliable) [c000000006797830] [c00000000022434c] __remove_hrtimer+0x5c/0xf0 [c000000006797870] [c000000000224b84] __hrtimer_run_queues+0x144/0x360 [c0000000067978f0] [c000000000225b90] hrtimer_interrupt+0x120/0x2f0 [c0000000067979a0] [c0000000000272d4] timer_interrupt+0x144/0x3e0 [c000000006797a00] [c000000000009a60] decrementer_common_virt+0x210/0x220 --- interrupt: 900 at plpar_hcall_norets_notrace+0x18/0x2c NIP:  c0000000000ef100 LR: c0000000009bca88 CTR: 0000000000000000 REGS: c000000006797a70 TRAP: 0900   Not tainted (5.15.0-rc5-next-20211012-autotest) MSR:  800000000280b033   CR: 24000224  XER: 00000000 CFAR: 0000000000000c00 IRQMASK: 0 GPR00: 0000000000000000 c000000006797d10 c0000000019b2500 0000000000000000 GPR04: 8004001f54ca7c10 0000000000000000 0000000000000004 0000000000000018 GPR08: 0000000000000000 0000000000000090 0000000000000001 8004001f54ca7c00 GPR12: 0000000000000000 c00000117fb4be80 0000000000000000 000000001eef2b00 GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR20: 0000000000000000 0000000000000000 0000000000000000 c0000000018f1e28 GPR24: 0000000000000001 0000638691f200fe 0000000000000000 0000000000000000 GPR28: 0000000000000001 0000000000000000 c000000001192090 c000000001192098 NIP [c0000000000ef100] plpar_hcall_norets_notrace+0x18/0x2c LR [c0000000009bca88] check_and_cede_processor+0x48/0x60 --- interrupt: 900 [c000000006797d10] [c00000117db0ac28] 0xc00000117db0ac28 (unreliable) [c000000006797d70] [c0000000009bcec4] dedicated_cede_loop+0x94/0x1a0 [c000000006797dc0] [c0000000009b97f4] cpuidle_enter_state+0x2d4/0x4e0 [c000000006797e20] [c0000000009b9a98] cpuidle_enter+0x48/0x70 [c000000006797e60] [c0000000001a0264] call_cpuidle+0x44/0x80 [c000000006797e80] [c0000000001a0840] do_idle+0x340/0x390 [c000000006797f00] [c0000000001a0ac4] cpu_startup_entry+0x34/0x50 [c000000006797f30] [c00000000006144c] start_secondary+0x27c/0x290 [c000000006797f90] [c00000000000d254] start_secondary_prolog+0x10/0x14 Instruction dump: 7d284b78 e9280008 7fa95040 409eff9c e9280010 e8e90000 e9490008 70e70001 41820168 e8c90010 2fa60000 419e0010 70e70001 41820044 2faa0000 ---[ end trace 3024a0b7ce3c6f83 ]--- # lspci -nn 0012:01:00.0 Fibre Channel [0c04]: QLogic Corp. ISP2722-based 16/32Gb Fibre Channel to PCIe Adapter [1077:2261] (rev 01) 0012:01:00.1 Fibre Channel [0c04]: QLogic Corp. ISP2722-based 16/32Gb Fibre Channel to PCIe Adapter [1077:2261] (rev 01) Problem is not seen with 5.15.0-rc4-next-20211005 -- Regard's Abdul Haleem IBM Linux Technology Center