Bug 205011 - NVME driver takes too long to suspend (nvme_shutdown_ctrl is being called)
Summary: NVME driver takes too long to suspend (nvme_shutdown_ctrl is being called)
Status: NEW
Alias: None
Product: Drivers
Classification: Unclassified
Component: Flash/Memory Technology Devices (show other bugs)
Hardware: All Linux
: P1 normal
Assignee: David Woodhouse
URL:
Keywords:
Depends on:
Blocks: 178231
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Reported: 2019-09-26 23:52 UTC by Todd Brandt
Modified: 2019-09-27 01:06 UTC (History)
0 users

See Also:
Kernel Version: 5.3.0
Subsystem:
Regression: No
Bisected commit-id:

Attachments
otcpl-aml-y_mem_nvme.html (808.05 KB, text/html)
2019-09-26 23:52 UTC, Todd Brandt 		Details
issue.def (408 bytes, text/plain)
2019-09-26 23:53 UTC, Todd Brandt 		Details
issue.def (414 bytes, text/plain)
2019-09-27 01:06 UTC, Todd Brandt 		Details
Show Obsolete (1) Add an attachment (proposed patch, testcase, etc.)

Description Todd Brandt 2019-09-26 23:52:21 UTC 
Created attachment 285193 [details]
otcpl-aml-y_mem_nvme.html

The NVME driver occasionally takes a large amount of time in suspend to properly shut down. In the attached example it takes over 5 seconds.
Comment 1 Todd Brandt 2019-09-26 23:53:48 UTC 
Created attachment 285195 [details]
issue.def

Triggers on NVME highest level PCI device taking longer than 200ms in suspend.
Comment 2 Todd Brandt 2019-09-27 01:06:55 UTC 
Created attachment 285201 [details]
issue.def
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