This bug has been migrated to another issue tracking site. It has been closed here and may no longer be being monitored.

If you would like to get updates for this issue, or to participate in it, you may do so at Red Hat Issue Tracker .
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 2135966 - pciehp cannot detect any slot
Summary: pciehp cannot detect any slot
Keywords:
Status: CLOSED MIGRATED
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: kernel
Version: 8.7
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Myron Stowe
QA Contact: William Gomeringer
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-10-19 00:05 UTC by lingwangneuraleng
Modified: 2023-09-28 16:44 UTC (History)
0 users

Fixed In Version:
Doc Type: ---
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-09-01 18:13:04 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker   RHEL-1984 0 None Migrated None 2023-09-01 18:13:00 UTC
Red Hat Issue Tracker RHELPLAN-136950 0 None None None 2022-10-19 00:20:11 UTC

Description lingwangneuraleng 2022-10-19 00:05:56 UTC
Description of problem:
pciehp cannot detect any slot.

Version-Release number of selected component (if applicable):
4.18.0-423.el8.x86_64

How reproducible:

Steps to Reproduce:
1. Use libvirt to create a x86_64 pc-q35-6.2 VM. In grub kernel command line add  pciehp.dyndbg=+p
2. boot into it
3. dmesg | grep pciehp

Actual results:
only show single related line:
```
pciehp: pcie_port_service_register = 0
```

Expected results:
It should show lines like following:
```
[    1.360623] pciehp: pcie_port_service_register = 0
[    1.362499] pcieport 0000:00:02.0: pciehp: Slot Capabilities      : 0x0002007b
[    1.362508] pcieport 0000:00:02.0: pciehp: Slot Status            : 0x0050
[    1.362517] pcieport 0000:00:02.0: pciehp: Slot Control           : 0x01c0
[    1.362533] pcieport 0000:00:02.0: pciehp: Slot #0 AttnBtn+ PwrCtrl+ MRL- AttnInd+ PwrInd+ HotPlug+ Surprise+ Interlock+ NoCompl- IbPresDis- LLActRep+
```

Additional info:
The PCIe hotplug is broken. When plug in new devices, the pcie cannot trigger the hot-plug action. It does not show `Attention button pressed`, `Link Up`, etc.

Comment 1 lingwangneuraleng 2022-10-19 14:54:33 UTC
For some reason in the new kernel the pcie slots are detected by acpiphp instead of pciehp:
```
[    0.472092] acpiphp: ACPI Hot Plug PCI Controller Driver version: 0.5
[    0.601789] acpiphp: Slot [0] registered
[    0.616053] acpiphp: Slot [0-2] registered
[    0.632062] acpiphp: Slot [0-3] registered
[    0.641026] acpiphp: Slot [0-4] registered
[    0.654095] acpiphp: Slot [0-5] registered
[    0.668644] acpiphp: Slot [0-6] registered
[    0.679036] acpiphp: Slot [0-7] registered
[    0.690992] acpiphp: Slot [0-8] registered
[    0.693592] acpiphp: Slot [0-9] registered

```
In 8.6, acpiphp does not register those slots instead pciehp register them.

Comment 2 Doug Ledford 2023-08-31 13:44:08 UTC
This bug is scheduled for migration to Jira.  When that happens, this bugzilla issue will be permanently closed with the status MIGRATED and all future interaction on this issue will need to happen in the Jira issue.  The new issue will be part of the RHEL project (a project for Jira only issues, which will sync once, then close the bugzilla issue and all future updates will happen in Jira), not part of the RHELPLAN project (which is part of the automated bugzilla->Jira mirroring and which allows ongoing updates to the bugzilla bug and syncs those updates over to Jira).

For making sure you have access to Jira in order to continue accessing this issue, follow one of the appropriate knowledge base articles:

KB0016394 - https://redhat.service-now.com/help?id=kb_article_view&sysparm_article=KB0016394
KB0016694 - https://redhat.service-now.com/help?id=kb_article_view&sysparm_article=KB0016694
KB0016774 - https://redhat.service-now.com/help?id=kb_article_view&sysparm_article=KB0016774

For general issues with Jira, open a ticket with rh-issues

Comment 3 RHEL Program Management 2023-09-01 18:11:47 UTC
Issue migration from Bugzilla to Jira is in process at this time. This will be the last message in Jira copied from the Bugzilla bug.

Comment 4 RHEL Program Management 2023-09-01 18:13:04 UTC
This BZ has been automatically migrated to the issues.redhat.com Red Hat Issue Tracker. All future work related to this report will be managed there.

To find the migrated issue, look in the "Links" section for a direct link to the new issue location. The issue key will have an icon of 2 footprints next to it, and begin with "RHEL-" followed by an integer.  You can also find this issue by visiting https://issues.redhat.com/issues/?jql= and searching the "Bugzilla Bug" field for this BZ's number, e.g. a search like:

"Bugzilla Bug" = 1234567

In the event you have trouble locating or viewing this issue, you can file an issue by sending mail to rh-issues.

Users watching this BZ may not be automatically added to the Jira ticket.  Be sure to add yourself to the Watchers field in the Jira issue if you desire to continue following this issue.

Comment 5 Doug Ledford 2023-09-08 17:30:47 UTC
Additional information on creating a Jira account to access the migrated issue can be found here:

https://access.redhat.com/articles/7032570


Note You need to log in before you can comment on or make changes to this bug.