https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=285993
--- Comment #14 from Jim Long <freebsd-bugzi...@umpquanet.com> ---
I've got a verbose dmesg if that will help. With that level of detail, I'm not
as clear on what is or isn't relevant. If you want all 2200-some lines, just
say the word. Otherwise, here's the redacted version.
Looking at my printf's, is there perhaps a clue in the sequence:
pcib10: (1) retval == -1
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (2) retval == 0
I appreciate your assistance with this. Please don't hesitate to suggest more
enlightening "printf" probes, since I am not familiar with the kernel source.
Thank you,
Jim
Diffs to n271055:
11:47:43 /usr/src# git diff
diff --git a/sys/dev/pci/pci_pci.c b/sys/dev/pci/pci_pci.c
index 06e8c2bc8433..b94d27314f49 100644
--- a/sys/dev/pci/pci_pci.c
+++ b/sys/dev/pci/pci_pci.c
@@ -1071,20 +1071,32 @@ pcib_hotplug_inserted(struct pcib_softc *sc)
/* Pretend the card isn't present if a detach is forced. */
if (sc->flags & PCIB_DETACHING)
+{
+device_printf(sc->dev, "(1) PCIB_DETACHING\n");
return (false);
+}
/* Card must be present in the slot. */
if ((sc->pcie_slot_sta & PCIEM_SLOT_STA_PDS) == 0)
+{
+device_printf(sc->dev, "(2) PCIEM_SLOT_STA_PDS\n");
return (false);
+}
/* A power fault implicitly turns off power to the slot. */
if (sc->pcie_slot_sta & PCIEM_SLOT_STA_PFD)
+{
+device_printf(sc->dev, "(3) PCIEM_SLOT_STA_PFD\n");
return (false);
+}
/* If the MRL is disengaged, the slot is powered off. */
if (sc->pcie_slot_cap & PCIEM_SLOT_CAP_MRLSP &&
(sc->pcie_slot_sta & PCIEM_SLOT_STA_MRLSS) != 0)
+{
+device_printf(sc->dev, "(4) CAP_MRLSP && STA_MRLSS\n");
return (false);
+}
return (true);
}
@@ -1868,8 +1880,10 @@ pcib_child_present(device_t dev, device_t child)
int retval;
retval = bus_child_present(dev);
+device_printf(sc->dev, "(1) retval == %d\n", retval);
if (retval != 0 && sc->flags & PCIB_HOTPLUG)
retval = pcib_hotplug_present(sc);
+device_printf(sc->dev, "(2) retval == %d\n", retval);
return (retval);
#else
return (bus_child_present(dev));
Trimmed verbose dmesg:
...
pcm5: Soft PCM mixer ENABLED
pcm5: Playback channel matrix is: unknown, assuming 7.1 (disconnected)
pcib10: HotPlug interrupt: 0x52
pcib10: Power Fault Detected
pcib10: Command Completed
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: HotPlug command: 15f8 -> 17f8
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: HotPlug interrupt: 0x52
pcib10: Power Fault Detected
pcib10: Command Completed
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
procfs registered
Statistical TSC calibration took 18175 us and 4035 data points
Timecounter "TSC-low" frequency 1655996465 Hz quality 1000
Statistical lapic calibration took 8083 us and 41665 data points
...
AcpiOsExecute: enqueue 20 pending tasks
ugen0.1: <Intel XHCI root HUB> at usbus0
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
msi: Assigning MSI-X IRQ 94 to local APIC 5 vector 48
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
msi: Assigning MSI-X IRQ 95 to local APIC 21 vector 48
uhub0 numa-domain 0 on usbus0
uhub0: <Intel XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (1) retval == -1
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (2) retval == 0
nvme0: failing outstanding i/o
nvme0: ASYNC_EVENT_REQUEST (0c) sqid:0 cid:14 nsid:0 cdw10:00000000
cdw11:00000000
nvme0: ABORTED - BY REQUEST (00/07) crd:0 m:0 dnr:1 p:0 sqid:0 cid:14 cdw0:0
nvme0: ASYNC_EVENT_REQUEST (0c) sqid:0 cid:13 nsid:0 cdw10:00000000
cdw11:00000000
nvme0: ABORTED - BY REQUEST (00/07) crd:0 m:0 dnr:1 p:0 sqid:0 cid:13 cdw0:0
nvme0: ASYNC_EVENT_REQUEST (0c) sqid:0 cid:12 nsid:0 cdw10:00000000
cdw11:00000000
nvme0: ABORTED - BY REQUEST (00/07) crd:0 m:0 dnr:1 p:0 sqid:0 cid:12 cdw0:0
nvme0: ASYNC_EVENT_REQUEST (0c) sqid:0 cid:11 nsid:0 cdw10:00000000
cdw11:00000000
nvme0: ABORTED - BY REQUEST (00/07) crd:0 m:0 dnr:1 p:0 sqid:0 cid:11 cdw0:0
nvme0: ASYNC_EVENT_REQUEST (0c) sqid:0 cid:10 nsid:0 cdw10:00000000
cdw11:00000000
nvme0: ABORTED - BY REQUEST (00/07) crd:0 m:0 dnr:1 p:0 sqid:0 cid:10 cdw0:0
nvme0: ASYNC_EVENT_REQUEST (0c) sqid:0 cid:9 nsid:0 cdw10:00000000
cdw11:00000000
nvme0: ABORTED - BY REQUEST (00/07) crd:0 m:0 dnr:1 p:0 sqid:0 cid:9 cdw0:0
nvme0: ASYNC_EVENT_REQUEST (0c) sqid:0 cid:8 nsid:0 cdw10:00000000
cdw11:00000000
nvme0: ABORTED - BY REQUEST (00/07) crd:0 m:0 dnr:1 p:0 sqid:0 cid:8 cdw0:0
nvme0: ASYNC_EVENT_REQUEST (0c) sqid:0 cid:7 nsid:0 cdw10:00000000
cdw11:00000000
nvme0: ABORTED - BY REQUEST (00/07) crd:0 m:0 dnr:1 p:0 sqid:0 cid:7 cdw0:0
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <ST3000DM008-2DM166 CC26> ACS-2 ATA SATA 3.x device
ada0: Serial Number Z505F4XJ
....
pass0: Command Queueing enabled
pci0: driver added
....
pci1: driver added
pci2: driver added
pci3: driver added
pci4: driver added
pci5: driver added
....
pci6: driver added
....
pci7: driver added
pci8: driver added
....
pci9: driver added
pci10: driver added
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
nvme0: detached
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
Trying to mount root from zfs:thumb/ROOT/default []...
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (1) retval == -1
pcib10: (3) PCIEM_SLOT_STA_PFD
pcib10: (2) retval == 0
pci10: detached
....
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