linux-kernel - Re: PCI: Race condition in pci_create_sysfs_dev

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Date:   Sun, 15 Nov 2020 13:10:01 +0100
From:   Pali Rohár <pali@...nel.org>
To:     Krzysztof Wilczyński <kw@...ux.com>
Cc:     Oliver O'Halloran <oohall@...il.com>,
        Bjorn Helgaas <helgaas@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        linux-pci <linux-pci@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>, Yinghai Lu <yinghai@...nel.org>
Subject: Re: PCI: Race condition in pci_create_sysfs_dev_files

On Sunday 15 November 2020 07:19:36 Krzysztof Wilczyński wrote:
> Hello Pali!
> 
> Sincere apologies for taking a long time to get back to you.
> 
> On 20-11-04 17:29:31, Pali Rohár wrote:
> 
> [...]
> > 
> > Krzysztof, as Bjorn wrote, do you want to take this issue?
> > 
> [...]
> 
> Yes.  I already talked to Bjorn about this briefly, and thus I am more
> than happy to take care about this.  Most definitely.
> 
> Krzysztof

Hello Krzysztof!

Thank you very much. I have there some patches for pci aardvard driver
which decrease boot time but trigger this race condition more often. So
they are not suitable for upstreaming yet.

Once you you have a fix for it, let me know and I could test it with my
aardvark patches.