linux-kernel - Re: [patch V3 13/33] x86/apic/vector: Provide MSI parent domain

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Message-ID: <87o7r5dpq2.fsf@kernel.org>
Date:   Wed, 11 Jan 2023 18:02:13 +0200
From:   Kalle Valo <kvalo@...nel.org>
To:     Jason Gunthorpe <jgg@...dia.com>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Moshe Shemesh <moshe@...dia.com>,
        Shay Drory <shayd@...dia.com>,
        LKML <linux-kernel@...r.kernel.org>, x86@...nel.org,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        linux-pci@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Marc Zyngier <maz@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Dave Jiang <dave.jiang@...el.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Kevin Tian <kevin.tian@...el.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Logan Gunthorpe <logang@...tatee.com>,
        Ashok Raj <ashok.raj@...el.com>, Jon Mason <jdmason@...zu.us>,
        Allen Hubbe <allenbh@...il.com>
Subject: Re: [patch V3 13/33] x86/apic/vector: Provide MSI parent domain

Jason Gunthorpe <jgg@...dia.com> writes:

> On Tue, Jan 10, 2023 at 01:14:00PM +0100, Thomas Gleixner wrote:
>
>> Care to send a proper patch with changelog?
>
> Yes, I'll post it in a few days once the test team confirms it

I think I'm seeing the same leak and it's spamming logs on my test box a
lot. Let me know if you need any help with testing, I can do that pretty
quickly.

unreferenced object 0xffff888113dc7520 (size 96):
comm "insmod", pid 50676, jiffies 4301551867 (age 1463.666s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 25 68 a5 ff ff ff ff  .........%h.....
00 00 00 00 00 00 00 00 38 75 dc 13 81 88 ff ff  ........8u......
backtrace:
[<ffffffffa3105532>] __kmem_cache_alloc_node+0x1d2/0x2b0
[<ffffffffa2fdfb45>] kmalloc_trace+0x25/0x60
[<ffffffffa2cb8b42>] __irq_domain_alloc_fwnode+0x52/0x2b0
[<ffffffffa2cc6add>] msi_create_device_irq_domain+0x27d/0x630
[<ffffffffa3aaf5a9>] pci_setup_msi_device_domain+0xe9/0x120
[<ffffffffa3aababd>] __pci_enable_msi_range+0x3fd/0x5a0
[<ffffffffa3aa8ac3>] pci_alloc_irq_vectors_affinity+0x153/0x200
[<ffffffffa3aa8b7c>] pci_alloc_irq_vectors+0xc/0x10
[<ffffffffc0b75287>] ath11k_pci_alloc_msi+0xb7/0x610 [ath11k_pci]
[<ffffffffc0b7696e>] ath11k_pci_probe+0x5be/0x1090 [ath11k_pci]
[<ffffffffa3a8d4e9>] local_pci_probe+0xd9/0x170
[<ffffffffa3a8f687>] pci_call_probe+0x167/0x440
[<ffffffffa3a919f6>] pci_device_probe+0xa6/0x100
[<ffffffffa43c2c09>] really_probe+0x1c9/0xa50
[<ffffffffa43c361a>] __driver_probe_device+0x18a/0x460
[<ffffffffa43c393a>] driver_probe_device+0x4a/0x120

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