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From: "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>
To: micklorain <micklorain@protonmail.com>
Cc: "andriy.shevchenko@linux.intel.com" 
	<andriy.shevchenko@linux.intel.com>,
	"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
	"mathias.nyman@intel.com" <mathias.nyman@intel.com>
Subject: Re: [PATCH v1] usb: hcd: Try MSI interrupts on PCI devices
Date: Mon, 28 Feb 2022 21:27:12 +0100	[thread overview]
Message-ID: <Yh0wIGmoCjzKPTej@kroah.com> (raw)
In-Reply-To: <PxIByDyBRcsbpcmVhGSNDFAoUcMmb78ctXCkw6fbpx25TGlCHvA6SJjjFkNr1FfQZMntYPTNyvEnblxzAZ8a6jP9ddLpKeCN6Chi_2FuexU=@protonmail.com>

On Mon, Feb 28, 2022 at 08:12:47PM +0000, micklorain wrote:
> Hi,
> 
> This patch breaks USB for me. I noticed when I upgraded from debian's 4.19.0-18 (working) to 5.10.0-10 (broken). I git bisect'ed until I found that this patch is the culprit. Upstream 5.17.0-rc2 is still broken, but 5.17.0-rc2 with this patch reverted works.
> 
> lsusb when things work :
> https://paste.debian.net/hidden/2a964425/
> 
> lsusb when things are broken :
> https://paste.debian.net/hidden/0376920c/
> 
> dmesg when things are broken :
> https://paste.debian.net/hidden/780ca112/

This dmesg says:
	[    1.049161] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug
have you tried that?

> 
> dmesg when things work :
> https://paste.debian.net/hidden/4d1bfc0f/

The messages here look different for PCI, can you diff them?

I see:
[    0.342113] PCI: PCI BIOS area is rw and x. Use pci=nobios if you want it NX.
[    0.342178] PCI: PCI BIOS revision 3.00 entry at 0xf0031, last bus=3
[    0.342180] PCI: Using configuration type 1 for base access

That's not in the "failing" system, are you sure that's the only change
here?

thanks,

greg k-h

  reply	other threads:[~2022-02-28 20:27 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-28 20:12 [PATCH v1] usb: hcd: Try MSI interrupts on PCI devices micklorain
2022-02-28 20:27 ` gregkh [this message]
2022-03-13 21:53   ` micklorain
2022-02-28 20:59 ` andriy.shevchenko
2022-03-06 16:09   ` micklorain
2022-03-09 17:47     ` andriy.shevchenko
2022-03-13 21:44       ` micklorain
2022-03-14  9:57         ` andriy.shevchenko
  -- strict thread matches above, loose matches on Subject: below --
2020-07-02 14:30 Andy Shevchenko

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