[iotg][tgl][tgl-aaeon] 20211006 image does not boot

Update: Apparently the system is not entirely hung. Although the mouse and keyboard are not responsive (mouse's light is off), the system just posted another bootup message:

[1606.334337] perf: interrupt took too long (2612 > 2500), lowering kernel.perf_event_max_sample_rate to 76500

(1600 seconds is nearly 30 minutes.)

As a starter, can you add the PPA https://launchpad.net/~anthonywong/+archive/ubuntu/kernel-staging, then run 'apt install linux-intel-wip', you will get the linux-intel 5.13.0-1005 kernel. Reboot the machine and choose the 1005 kernel in grub.

I reinstalled 5.13.0-1003.

I was able to add the PPA, install 5.13.0-1005 and it boots.

I don't know what is different between installing 5.13.0-1005 directly and the method in comment #3.

I got the TGL and EHL boards backwards.

The build WORKS on the EHL-Aaeon, but NOT the TGL-Aaeon.

I've updated the tags and the initial description.

According to https://bugs.launchpad.net/intel/+bug/1842239, please make sure the toolchain is CET enabled and rebuilt the userspace applications in the Ubuntu image (as I known CET is not enabled in 20.04).

This issue can be worked around by adding boot parameters no_user_ibt and no_user_shstk.

This bug was fixed in the package linux-intel-5.13 - 5.13.0-1007.7

---------------
linux-intel-5.13 (5.13.0-1007.7) focal; urgency=medium

  * focal/linux-intel-5.13: 5.13.0-1007.7 -proposed tracker (LP: #1946503)

  * [iotg][tgl][tgl-aaeon] 20211006 image does not boot (LP: #1946223)
    - Revert CET patches

linux-intel-5.13 (5.13.0-1006.6) focal; urgency=medium

  * focal/linux-intel-5.13: 5.13.0-1006.6 -proposed tracker (LP: #1945669)

  * Packaging resync (LP: #1786013)
    - [Packaging] update variants

  * MEI (Intel Management Engine Interface) for sprint 2 (LP: #1945464)
    - Revert "mei: dal: add test module"
    - mei: backport fix from 5.12
    - Revert "UBUNTU: [Config] Disable INTEL_MEI_DAL and INTEL_MEI_VIRTIO"
    - [Config] Enable CONFIG_INTEL_MEI_DAL and CONFIG_INTEL_MEI_VIRTIO

  * [EHL] Intel ishtp VNIC driver (LP: #1943524)
    - net: Add support for Intel vnic driver
    - [Config] CONFIG_INTEL_ISHTP_VNIC=m

  * [EHL] Quadrature Encoder Peripheral support for sprint 2 (LP: #1945494)
    - counter: Add support for Intel Quadrature Encoder Peripheral
    - counter: intel-qep: Mark PM callbacks with __maybe_unused
    - counter: intel-qep: Use to_pci_dev() helper
    - [Config] CONFIG_INTEL_QEP=m

  * I225-IT Ethernet (8086:0d9f) does not work on AAEON's EHL Board
    (LP: #1945548)
    - igc: Remove _I_PHY_ID checking
    - igc: Remove phy->type checking

  * [EHL][TGL][ADL] Enable Time Coordinated Compute interface driver
    (LP: #1929903)
    - tcc: update RTCT table parser to support two versions
    - Enable support to read a few whitelisted registers.
    - Remove Clock_Cycles_VT from MHL entry.
    - Add new IOCTL to read error log buffer.
    - Display errlog buffer raw data in kernel log as requested once this driver
      is loaded.
    - Fix issue found in acrn uos when convert cacheid to apicid.

  * Integrated TSN controller for sprint 2 (LP: #1945461)
    - net: pcs: Introducing support for DWC xpcs Energy Efficient Ethernet
    - net: stmmac: Add callbacks for DWC xpcs Energy Efficient Ethernet
    - net: stmmac: enable platform specific safety features
    - net: phy: probe for C45 PHYs that return PHY ID of zero in C22 space
    - net: stmmac: Fix mixed enum type warning
    - net: stmmac: Fix unused values warnings
    - stmmac: intel: move definitions to dwmac-intel header file
    - stmmac: intel: fix wrong kernel-doc
    - stmmac: align RX buffers
    - net: stmmac: Fix mixed enum type
    - net: pcs: xpcs: delete shim definition for mdio_xpcs_get_ops()
    - net: pcs: xpcs: there is only one PHY ID
    - net: pcs: xpcs: make the checks related to the PHY interface mode
    - net: pcs: xpcs: export xpcs_validate
    - net: pcs: xpcs: export xpcs_config_eee
    - net: pcs: xpcs: export xpcs_probe
    - net: pcs: xpcs: use mdiobus_c45_addr in xpcs_{read,write}
    - net: pcs: xpcs: convert to mdio_device
    - net: pcs: xpcs: convert to phylink_pcs_ops
    - net: stmmac: split xPCS setup from mdio register
    - net: pcs: add 2500BASEX support for Intel mGbE controller
    - net: stmmac: enable Intel mGbE 2.5Gbps link speed
    - net: stmmac: fix NPD with phylink_set_pcs if there is no MDIO bus
    - n...