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== Comment: #0 - Vaibhav Jain <vajai...@in.ibm.com> - 2018-04-09 04:58:46 ==
---Problem Description---
CXL driver reports a warning message when performing cache flush. This is due
to data-cache not present on some of the CAPI adapters hence the data-cache
operation fails and results in this error.
"WARNING: cache flush timed out"
Contact Information = Vaibha Jain <vajai...@in.ibm.com>
---uname output---
4.15.0-12-generic
---Additional Hardware Info---
Nallatech Flash GT+ adapter
Machine Type = Boston-LC
---Debugger---
A debugger is not configured
---Steps to Reproduce---
* Make sure that cxl module is loaded
* Issue command 'rmmod cxl'
Error seen in the kernel logs:
dmesg
[ 1203.791963] pci_bus 0006:00: busn_res: [bus 00] is released
[ 1203.792096] cxl afu0.0: Deactivating AFU directed mode
[ 1208.792711] cxl card0: WARNING: cache flush timed out!
The fix for this issue was merged to the mainline kernel via commit:
94322ed8e857 cxl: Check if PSL data-cache is available before issue
flush request
== Comment: #3 - Vaibhav Jain <vajai...@in.ibm.com> - 2018-04-09 05:02:20 ==
The fix for this issue was merged to the mainline kernel via commit:
94322ed8e857 cxl: Check if PSL data-cache is available before issue
flush request
** Affects: ubuntu-power-systems
Importance: High
Assignee: Canonical Kernel Team (canonical-kernel-team)
Status: New
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage)
Status: New
** Tags: architecture-ppc64le bugnameltc-166538 severity-high
targetmilestone-inin1804 triage-g
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Warning "cache flush timed out!" seen when unloading the cxl driver
https://bugs.launchpad.net/bugs/1762367
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