| Message ID | 20161017103442.GA12240@lst.de (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
On Mon, Oct 17, 2016 at 12:34 PM, Christoph Hellwig <hch@lst.de> wrote: > On Mon, Oct 17, 2016 at 11:33:03AM +0200, Emmanuel Benisty wrote: >> Hi Christoph, >> >> On Mon, Oct 17, 2016 at 11:26 AM, Christoph Hellwig <hch@lst.de> wrote: >> > can you run the lspci -vv command as again, but this time as root >> > user? >> >> Please find attached the new file. >> >> > Also just to make sure I interpret your report correctly: >> > The ata3 devices that's creating the problems is the SK-Hynix device, >> > probably a SSD that shows up as ahci controller? >> >> Yep, it's the only drive on this machine, which is indeed a SSD drive. > > Thanks. Still can't make sense of the issue, can you apply the debug > patch below, and try to caputure the screen output when the ata > device is beeing probed? Part 1: http://i.imgur.com/Prq86vT.jpg Part 2: http://i.imgur.com/EBxV25r.jpg Part 3: http://i.imgur.com/eBDVVXc.jpg Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c index ba5f11c..458d139 100644 --- a/drivers/ata/ahci.c +++ b/drivers/ata/ahci.c @@ -1422,6 +1422,7 @@ static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports, PCI_IRQ_MSIX | PCI_IRQ_MSI); if (nvec > 0) { if (!(readl(hpriv->mmio + HOST_CTL) & HOST_MRSM)) { + printk(KERN_INFO "ahci: using %d MSI(-X) vectors)\n", nvec); hpriv->get_irq_vector = ahci_get_irq_vector; hpriv->flags |= AHCI_HFLAG_MULTI_MSI; return nvec; @@ -1439,17 +1440,22 @@ static int ahci_init_msi(struct pci_dev *pdev, unsigned int n_ports, * -ENOSPC indicated we don't have enough vectors. Don't bother trying * a single vectors for any other error: */ - if (nvec < 0 && nvec != -ENOSPC) + if (nvec < 0 && nvec != -ENOSPC) { + printk("ahci: pci_alloc_irq_vectors (multi) returned %d\n", nvec); return nvec; + } /* * If the host is not capable of supporting per-port vectors, fall * back to single MSI before finally attempting single MSI-X. */ nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI); + printk("ahci: pci_alloc_irq_vectors (MSI) returned %d\n", nvec); if (nvec == 1) return nvec; - return pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX); + nvec = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSIX); + printk("ahci: pci_alloc_irq_vectors (MSI-X) returned %d\n", nvec); + return nvec; } static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)