== Comment: #0 - Satheesh Rajendran <satheera.com> - 2020-03-18 08:58:40 ==
Env:

HW: Power9 DD2.3

FW: 
# lsmcode
Version of System Firmware : 
 Product Name          : OpenPOWER Firmware
 Product Version       : mihawk-OP9_v2.4-4.31
 Product Extra         : 	skiboot-v6.5.1
 Product Extra         : 	bmc-firmware-version-0.00
 Product Extra         : 	occ-3472e6c
 Product Extra         : 	hostboot-a8024a3
 Product Extra         : 	buildroot-2019.05.2-11-g8e3337d
 Product Extra         : 	capp-ucode-p9-dd2-v4
 Product Extra         : 	machine-xml-f6ec5aa
 Product Extra         : 	hostboot-binaries-hw080119a.940
 Product Extra         : 	sbe-53c1726
 Product Extra         : 	hcode-hw102619a.op940
 Product Extra         : 	petitboot-v1.10.4
 Product Extra         : 	linux-5.3.7-openpower1-p1406925

Kernel: 5.6.0-rc6-gac309e774
Guest: F31 (5.5.8-200.fc31.ppc64le)

Host booted with disable_radix
# cat /proc/cmdline 
root=/dev/mapper/fedora_ltcmihawk50-root ro rd.lvm.lv=fedora_ltcmihawk50/root rd.lvm.lv=fedora_ltcmihawk50/swap disable_radix


Steps to reproduce:
1. Define and start the F31 guest(any guest with latest kernel)

Host checkstops

18.85716|SECURE|Secure Mode Disable (via Jumper)> 0x0000000000000000
 18.85736|ISTEP  6. 9 - host_gard
 21.92470|================================================
 22.00080|Error reported by prdf (0xE500) PLID 0x9000004E
 22.00081|  PRD Signature            : 0x60003 0xC6D10010
 22.00408|  Signature Description    : pu.ex:k0:n0:s0:p00:c3 (L2FIR[16]) Cache line inhibited hit cacheable space
 22.03833|  UserData1   : 0x0006000300000101
 22.03833|  UserData2   : 0xc6d1001000000000
 22.03834|------------------------------------------------
 22.07039|  Callout type             : Hardware Callout
 22.07040|  CPU id                   : 2
 22.07042|  Target                   : Physical:/Sys0/Node0/Proc0/EQ1/EX1
 22.07043|  Deconfig State           : NO_DECONFIG
 22.07043|  GARD Error Type          : GARD_Fatal
 22.07044|  Priority                 : SRCI_PRIORITY_MED
 22.07045|------------------------------------------------
 22.07046|  System checkstop occurred during runtime on previous boot
 22.07047|------------------------------------------------
 22.07047|  Hostboot Build ID: hostboot-a8024a3/hbicore.bin
 22.07048|================================================
 22.35319|HWAS|Deconfig HUID 0x00060001, Physical:/Sys0/Node0/Proc0/EQ0/EX1
 22.35333|HWAS|Deconfig HUID 0x00060005, Physical:/Sys0/Node0/Proc0/EQ2/EX1
 22.35349|HWAS|Deconfig HUID 0x00060003, Physical:/Sys0/Node0/Proc0/EQ1/EX1
 22.53921|HWAS|FUNCTIONAL> DIMM[03]=AAAAAAAA00000000
 22.53922|HWAS|FUNCTIONAL> Proc[05]=8800000000000000



BMC log:
r 18 12:09:04 mihawk systemd[1]: xyz.openbmc_project.Hwmon@-devices-platform-gpio\x2dfsi-fsi\x2dmaster-fsi0-slave@00\x2d\x2d00-00\x2d\x2d00\x2d\x2d00\x2d\x2d0a-fsi\x2dmaster-fsi1-slave@01\x2d\x2d00-01\x2d\x2d01\x2d\x2d00\x2d\x2d06-sbefifo2\x2ddev0-occ\x2dhwmon.2.service: Succeeded.
Mar 18 12:09:13 mihawk checkstop_app[24074]: Host checkstop condition detected
Mar 18 12:09:13 mihawk phosphor-fru-fault-monitor[499]: /xyz/openbmc_project/logging/entry/256 created
Mar 18 12:09:13 mihawk systemd[1]: openpower-debug-collector-checkstop: Succeeded.
Mar 18 12:09:13 mihawk systemd[1]: Started OpenPOWER debug data collector for host checkstop.
Mar 18 12:09:13 mihawk systemd[1]: Reached target Quiesce Target.

== Comment: #1 - Leonardo Augusto Guimaraes Garcia <lagarcia.com> - 2020-04-02 11:56:17 ==
My understanding is that the following patch fixes this issue:

https://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc.git/commit/?h=kvm-ppc-next&id=cd758a9b57ee85f0733c759e60f42b969c81f27b

This is current in kvm/linux-next and should get integrated soon in main line.

Created attachment 1676007 [details]
guest xml

------- Comment From lagarcia.com 2020-08-04 23:18 EDT-------
Fedora now has kernel 5.7, which contains the fix for this issue. Satheesh, would you be able to confirm if the issue is indeed fixed?

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