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Bug 1918888 - coresight backtraces when booting ThunderX2
Summary: coresight backtraces when booting ThunderX2
Status: NEW
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: 33
Hardware: aarch64
OS: Linux
Target Milestone: ---
Assignee: Kernel Maintainer List
QA Contact: Fedora Extras Quality Assurance
Depends On:
Blocks: ARMTracker
TreeView+ depends on / blocked
Reported: 2021-01-21 16:31 UTC by Paul Whalen
Modified: 2021-01-21 18:28 UTC (History)
22 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed:
Type: Bug

Attachments (Terms of Use)
dmesg.txt (449.77 KB, text/plain)
2021-01-21 16:33 UTC, Paul Whalen
no flags Details

Description Paul Whalen 2021-01-21 16:31:07 UTC
1. Please describe the problem:

Coresight backtraces when booting ThunderX2

2. What is the Version-Release number of the kernel:

Seeing this in Rawhide and F33

3. Did it work previously in Fedora? If so, what kernel version did the issue
   *first* appear?  Old kernels are available for download at :


4. Can you reproduce this issue? If so, please provide the steps to reproduce
   the issue below:

Boot on ThunderX2

5. Does this problem occur with the latest Rawhide kernel? To install the
   Rawhide kernel, run ``sudo dnf install fedora-repos-rawhide`` followed by
   ``sudo dnf update --enablerepo=rawhide kernel``:


6. Are you running any modules that not shipped with directly Fedora's kernel?:


7. Please attach the kernel logs. You can get the complete kernel log
   for a boot with ``journalctl --no-hostname -k > dmesg.txt``. If the
   issue occurred on a previous boot, use the journalctl ``-b`` flag.

Comment 1 Paul Whalen 2021-01-21 16:33:52 UTC
Created attachment 1749451 [details]

Comment 2 Jeremy Linton 2021-01-21 18:28:30 UTC
Per Suzuki Poulose:

The bindings clearly show that the funnel descriptions are messed up. For e.g,


They all "connect" to port 0 of the _SB.NOD1.FUN0. But if you look at the Node for NOD1.FUN0, it lists _SB.NOD1.CP00.THD0.ETM0 as the other end. It looks like a copy-paste error and has forgot to update the FUN for each of the items.

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