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From:   Bjorn Helgaas <bhelgaas@google.com>
Date:   Mon, 14 Jan 2019 08:31:45 -0600
Message-ID: <CAErSpo5B2m406Mk6SUUcnmF31OEa8vC5YQTKB0ws3z3F5y_fEw@mail.gmail.com>
Subject: Re: Please remove warnings from msi.c:1269 and blk-mq-pci.c:52 some day
To:     fin4478 fin4478 <fin4478@hotmail.com>,
        Dou Liyang <douliyangs@gmail.com>,
        Jens Axboe <axboe@kernel.dk>,
        Thomas Gleixner <tglx@linutronix.de>,
        Christoph Hellwig <hch@lst.de>
Cc:     linux-pci@vger.kernel.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Sender: linux-kernel-owner@vger.kernel.org
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[+cc Dou, Jens, Thomas, Christoph, linux-pci, LKML]

On Sun, Jan 13, 2019 at 11:24 PM fin4478 fin4478 <fin4478@hotmail.com> wrote:
>
> Hi,
>
> A regression from the 4.20 kernel: I have the Asgard 256GB nvme drive
> and my custom non debug 1000Hz timer kernel 5.0 started to throw a
> couple of warning messages at boot. My system works ok:
>
> [    1.849778] nvme nvme0: missing or invalid SUBNQN field.
> [    1.858041] nvme nvme0: allocated 64 MiB host memory buffer.
> [    1.886727] nvme nvme0: 16/0/0 default/read/poll queues
> [    1.886737] WARNING: CPU: 8 PID: 1254 at drivers/pci/msi.c:1269
> pci_irq_get_affinity+0x36/0x80
> [    1.886738] Modules linked in: realtek r8169 xhci_pci nvme xhci_hcd
> nvme_core
> [    1.886742] CPU: 8 PID: 1254 Comm: kworker/u32:8 Not tainted
> 5.0.0-rc2 #5
> [    1.886743] Hardware name: System manufacturer System Product
> Name/PRIME B350M-K, BIOS 4207 12/07/2018
> [    1.886747] Workqueue: nvme-reset-wq nvme_reset_work [nvme]
> [    1.886749] RIP: 0010:pci_irq_get_affinity+0x36/0x80
> [    1.886750] Code: 48 8b 87 88 02 00 00 48 81 c7 88 02 00 00 48 39 c7
> 74 17 85 f6 74 4e 31 d2 eb 04 39 d6 74 46 48 8b 00 83 c2 01 48 39 f8 75
> f1 <0f> 0b 31 c0 c3 83 e2 02 48 c7 c0 a8 dc 29 82 74 29 48 8b 97 88 02
> [    1.886751] RSP: 0018:ffffc90001ee7cf8 EFLAGS: 00010246
> [    1.886752] RAX: ffff888214423a88 RBX: 000000000000000f RCX:
> 0000000000000040
> [    1.886752] RDX: 0000000000000010 RSI: 0000000000000010 RDI:
> ffff888214423a88
> [    1.886753] RBP: ffff888213a84200 R08: ffff888216c22400 R09:
> ffff8882128da480
> [    1.886753] R10: 0000000000000000 R11: 0000000000000001 R12:
> 0000000000000001
> [    1.886754] R13: ffff888214423800 R14: 00000000ffffffff R15:
> ffff888213005008
> [    1.886754] FS:  0000000000000000(0000) GS:ffff888216c00000(0000)
> knlGS:0000000000000000
> [    1.886755] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [    1.886756] CR2: 00007f2eada39441 CR3: 0000000212880000 CR4:
> 00000000003406e0
> [    1.886756] Call Trace:
> [    1.886759]  blk_mq_pci_map_queues+0x32/0xc0
> [    1.886762]  nvme_pci_map_queues+0x7b/0xb0 [nvme]
> [    1.886764]  blk_mq_alloc_tag_set+0x113/0x2c0
> [    1.886767]  nvme_reset_work+0x1210/0x166d [nvme]
> [    1.886769]  process_one_work+0x1c9/0x350
> [    1.886771]  worker_thread+0x210/0x3c0
> [    1.886772]  ? rescuer_thread+0x320/0x320
> [    1.886773]  kthread+0x106/0x120
> [    1.886774]  ? kthread_create_on_node+0x60/0x60
> [    1.886777]  ret_from_fork+0x1f/0x30
> [    1.886778] ---[ end trace 1f86c10439edbd73 ]---
> [    1.886783] WARNING: CPU: 8 PID: 1254 at block/blk-mq-pci.c:52
> blk_mq_pci_map_queues+0xb9/0xc0
> [    1.886784] Modules linked in: realtek r8169 xhci_pci nvme xhci_hcd
> nvme_core
> [    1.886786] CPU: 8 PID: 1254 Comm: kworker/u32:8 Tainted: G
> W         5.0.0-rc2 #5
> [    1.886786] Hardware name: System manufacturer System Product
> Name/PRIME B350M-K, BIOS 4207 12/07/2018
> [    1.886788] Workqueue: nvme-reset-wq nvme_reset_work [nvme]
> [    1.886790] RIP: 0010:blk_mq_pci_map_queues+0xb9/0xc0
> [    1.886791] Code: d0 c7 04 91 00 00 00 00 48 89 de 89 c7 e8 4f 18 47
> 00 3b 05 5d d9 fb 00 72 e1 5b 31 c0 5d 41 5c 41 5d 41 5e 41 5f c3 31 c0
> c3 <0f> 0b eb c4 90 90 90 41 57 49 89 ff 41 56 41 55 41 54 55 53 48 8b
> [    1.886791] RSP: 0018:ffffc90001ee7d00 EFLAGS: 00010216
> [    1.886792] RAX: 00000000ffffffff RBX: 000000000000000f RCX:
> 0000000000000040
> [    1.886792] RDX: 0000000000000010 RSI: 0000000000000010 RDI:
> ffff888214423a88
> [    1.886793] RBP: 0000000000000000 R08: ffff888216c22400 R09:
> ffff8882128da480
> [    1.886793] R10: 0000000000000000 R11: 0000000000000001 R12:
> 0000000000000001
> [    1.886794] R13: ffff888214423800 R14: 00000000ffffffff R15:
> ffff888213005008
> [    1.886794] FS:  0000000000000000(0000) GS:ffff888216c00000(0000)
> knlGS:0000000000000000
> [    1.886795] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [    1.886796] CR2: 00007f2eada39441 CR3: 0000000212880000 CR4:
> 00000000003406e0
> [    1.886796] Call Trace:
> [    1.886798]  nvme_pci_map_queues+0x7b/0xb0 [nvme]
> [    1.886800]  blk_mq_alloc_tag_set+0x113/0x2c0
> [    1.886802]  nvme_reset_work+0x1210/0x166d [nvme]
> [    1.886803]  process_one_work+0x1c9/0x350
> [    1.886804]  worker_thread+0x210/0x3c0
> [    1.886805]  ? rescuer_thread+0x320/0x320
> [    1.886806]  kthread+0x106/0x120
> [    1.886807]  ? kthread_create_on_node+0x60/0x60
> [    1.886808]  ret_from_fork+0x1f/0x30
> [    1.886809] ---[ end trace 1f86c10439edbd74 ]---
> [    1.893002] nvme nvme0: nvme_report_ns_ids: Identify Descriptors
> failed
> [    1.894725] nvme nvme0: nvme_report_ns_ids: Identify Descriptors
> failed
>
> System:
>   Host: ryzenpc Kernel: 5.0.0-rc2 x86_64 bits: 64 Desktop: Xfce 4.12.4
>   Distro: Debian GNU/Linux buster/sid
> Machine:
>   Type: Desktop Mobo: ASUSTeK model: PRIME B350M-K v: Rev X.0x
>   serial: <root required> UEFI [Legacy]: American Megatrends v: 4207
>   date: 12/07/2018
> CPU:
>   6-Core: AMD Ryzen 5 1600 type: MT MCP speed: 2835 MHz
> Graphics:
>   Device-1: AMD Ellesmere [Radeon RX 470/480] driver: amdgpu v: kernel
>   Display: x11 server: X.Org 1.20.3 driver: amdgpu
>   resolution: 3840x2160~60Hz
>   OpenGL:
>   renderer: Radeon RX 570 Series (POLARIS10 DRM 3.27.0 5.0.0-rc2 LLVM
> 7.0.1)
>   v: 4.5 Mesa 19.0.0-devel (git-04c2f12 2019-01-13 cosmic-oibaf-ppa)
> Network:
>   Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
>   driver: r8169
> Drives:
>   Local Storage: total: 476.95 GiB used: 174.65 GiB (36.6%)
> Info:
>   Processes: 227 Uptime: 25m Memory: 7.79 GiB used: 987.6 MiB (12.4%)