Re: commit 54f45a30c0 ("PCI/MSI: Add startup/shutdown for per device domains") causing boot hangs on my laptop

[Bjorn Helgaas <helgaas@kernel.org>]

On Tue, Oct 28, 2025 at 05:52:37PM -0500, Bjorn Helgaas wrote:
> On Mon, Oct 13, 2025 at 04:19:39PM -0500, Bjorn Helgaas wrote:
> > On Mon, Oct 13, 2025 at 04:18:16PM -0500, Bjorn Helgaas wrote:
> > > On Thu, Oct 02, 2025 at 10:04:17AM -0700, Kenneth Crudup wrote:
> > > > 
> > > > I'm running Linus' master (as of 7f7072574).
> > > > 
> > > > I bisected it to the above named commit (but had to back out ba9d484ed3
> > > > (""PCI/MSI: Remove the conditional parent [un]mask logic") and then
> > > > 727e914bbfbbd ("PCI/MSI: Check MSI_FLAG_PCI_MSI_MASK_PARENT in
> > > > cond_[startup|shutdown]_parent()") first for a clean revert.)
> ...

> > #regzbot introduced: 54f45a30c0 ("PCI/MSI: Add startup/shutdown for per device domains")
> > #regzbot link: https://lore.kernel.org/all/3152ca947e89ee37264b90c422e77bb0e3d575b9.camel@sapience.com/
> > #regzbot link: https://bugzilla.kernel.org/show_bug.cgi?id=220658
> 
> #regzbot fix: e433110eb5bf ("PCI: vmd: Override irq_startup()/irq_shutdown() in vmd_init_dev_msi_info()")

#regzbot report: https://lore.kernel.org/r/af5f1790-c3b3-4f43-97d5-759d43e09c7b@panix.com
#regzbot introduced: 54f45a30c0d0
#regzbot fix: e433110eb5bf

54f45a30c0d0 ("PCI/MSI: Add startup/shutdown for per device domains")
e433110eb5bf ("PCI: vmd: Override irq_startup()/irq_shutdown() in vmd_init_dev_msi_info()") (appeared in v6.18-rc2)