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Message-ID: <20230509122440.418068cb@canb.auug.org.au>
Date:   Tue, 9 May 2023 12:24:40 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Michael Ellerman <mpe@...erman.id.au>,
        PowerPC <linuxppc-dev@...ts.ozlabs.org>
Cc:     James Bottomley <James.Bottomley@...senPartnership.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: boot warning

Hi all,

Today's qemu test boot (powerpc pseries_le_defconfig) produced this
warning:

[    2.048588][    T1] ipr: IBM Power RAID SCSI Device Driver version: 2.6.4 (March 14, 2017)
[    2.051560][    T1] ------------[ cut here ]------------
[    2.052297][    T1] WARNING: CPU: 0 PID: 1 at kernel/workqueue.c:5925 workqueue_sysfs_register+0x20/0x1f0
[    2.053294][    T1] Modules linked in:
[    2.053678][    T1] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.4.0-rc1-01511-g91b79de175e1 #1
[    2.053899][    T1] Hardware name: IBM pSeries (emulated by qemu) POWER8 (raw) 0x4d0200 0xf000004 of:SLOF,HEAD pSeries
[    2.054099][    T1] NIP:  c000000000181d40 LR: c000000000182164 CTR: c0000000001b71e0
[    2.054171][    T1] REGS: c0000000047632c0 TRAP: 0700   Not tainted  (6.4.0-rc1-01511-g91b79de175e1)
[    2.054279][    T1] MSR:  8000000002029033 <SF,VEC,EE,ME,IR,DR,RI,LE>  CR: 48000284  XER: 00000000
[    2.054608][    T1] CFAR: c000000000182160 IRQMASK: 0 
[    2.054608][    T1] GPR00: c000000000182164 c000000004763560 c000000001558c00 c000000004d18600 
[    2.054608][    T1] GPR04: 0000000000000000 0000000000000000 c0000000028eccd8 0000000000000000 
[    2.054608][    T1] GPR08: 0000000000000000 0000000000080000 0000000000000000 0000000048000288 
[    2.054608][    T1] GPR12: 0000000000000000 c000000002ad0000 c000000000013788 0000000000000000 
[    2.054608][    T1] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    2.054608][    T1] GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    2.054608][    T1] GPR24: 0000000000000000 c000000004d186b8 c000000004d18610 c000000004d18620 
[    2.054608][    T1] GPR28: 0000000000000000 c00000000299b310 0000000000000000 c000000004d18600 
[    2.055488][    T1] NIP [c000000000181d40] workqueue_sysfs_register+0x20/0x1f0
[    2.055564][    T1] LR [c000000000182164] alloc_workqueue+0x254/0x584
[    2.055858][    T1] Call Trace:
[    2.055989][    T1] [c000000004763560] [c0000000047635f0] 0xc0000000047635f0 (unreliable)
[    2.056509][    T1] [c0000000047635f0] [c0000000001823a8] alloc_workqueue+0x498/0x584
[    2.056605][    T1] [c0000000047636a0] [c000000000ba016c] scsi_host_alloc+0x2fc/0x500
[    2.056678][    T1] [c000000004763730] [c000000000bdf7ec] ibmvscsi_probe+0x6c/0xaf8
[    2.056746][    T1] [c000000004763820] [c000000000105d4c] vio_bus_probe+0x9c/0x4a0
[    2.056816][    T1] [c0000000047638e0] [c000000000b1c274] really_probe+0x104/0x410
[    2.056885][    T1] [c000000004763970] [c000000000b1c630] __driver_probe_device+0xb0/0x1e0
[    2.056956][    T1] [c0000000047639f0] [c000000000b1c7b4] driver_probe_device+0x54/0x130
[    2.057025][    T1] [c000000004763a30] [c000000000b1cac8] __driver_attach+0xd8/0x200
[    2.057092][    T1] [c000000004763a70] [c000000000b18cd4] bus_for_each_dev+0xb4/0x140
[    2.057158][    T1] [c000000004763ad0] [c000000000b1b824] driver_attach+0x34/0x50
[    2.057226][    T1] [c000000004763af0] [c000000000b1ac1c] bus_add_driver+0x13c/0x2d0
[    2.057292][    T1] [c000000004763b80] [c000000000b1e3c4] driver_register+0xa4/0x1b0
[    2.057360][    T1] [c000000004763bf0] [c000000000108054] __vio_register_driver+0x74/0x9c
[    2.057428][    T1] [c000000004763c10] [c000000002063690] ibmvscsi_module_init+0x98/0xd4
[    2.057500][    T1] [c000000004763c40] [c0000000000131a0] do_one_initcall+0x80/0x320
[    2.057583][    T1] [c000000004763d20] [c0000000020049b4] kernel_init_freeable+0x304/0x3ac
[    2.057657][    T1] [c000000004763df0] [c0000000000137b0] kernel_init+0x30/0x1a0
[    2.057723][    T1] [c000000004763e50] [c00000000000debc] ret_from_kernel_user_thread+0x14/0x1c
[    2.057807][    T1] --- interrupt: 0 at 0x0
[    2.057858][    T1] NIP:  0000000000000000 LR: 0000000000000000 CTR: 0000000000000000
[    2.057909][    T1] REGS: c000000004763e80 TRAP: 0000   Not tainted  (6.4.0-rc1-01511-g91b79de175e1)
[    2.057964][    T1] MSR:  0000000000000000 <>  CR: 00000000  XER: 00000000
[    2.058031][    T1] CFAR: 0000000000000000 IRQMASK: 0 
[    2.058031][    T1] GPR00: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    2.058031][    T1] GPR04: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    2.058031][    T1] GPR08: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    2.058031][    T1] GPR12: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    2.058031][    T1] GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    2.058031][    T1] GPR20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    2.058031][    T1] GPR24: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    2.058031][    T1] GPR28: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 
[    2.058682][    T1] NIP [0000000000000000] 0x0
[    2.058728][    T1] LR [0000000000000000] 0x0
[    2.058782][    T1] --- interrupt: 0
[    2.058965][    T1] Code: 60000000 60000000 60000000 60420000 3c4c013d 38426ee0 7c0802a6 60000000 fb61ffd8 f821ff71 81230100 55290318 <0b090000> 3d22fff0 7c0802a6 fb810070 
[    2.059420][    T1] ---[ end trace 0000000000000000 ]---
[    2.065968][   T46] scsi_tmf_0 (46) used greatest stack depth: 15200 bytes left
[    2.067252][    T1] scsi host0: failed to create tmf workq
[    2.092458][   T45] scsi_eh_0 (45) used greatest stack depth: 14240 bytes left
[    2.092852][    T1] ibmvscsi 71000003: couldn't allocate host data
[    2.093005][    T1] ibmvscsi: probe of 71000003 failed with error -1


I have no idea what has caused this.

-- 
Cheers,
Stephen Rothwell

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