[Bug 224064] [nvme][hang][resume] nvme_ctrlr_wait_for_ready called with desired_val = 0 but cc.en =1

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=224064

            Bug ID: 224064
           Summary: [nvme][hang][resume] nvme_ctrlr_wait_for_ready called
                    with desired_val = 0 but cc.en =1
           Product: Base System
           Version: CURRENT
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: dch at freebsd.org

Created attachment 188501
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=188501&action=edit
nvme info

on resuming from suspend the system stalls on any disk i/o, after console
shows:

freebsd nvme_ctrlr_wait_for_ready called with desired_val = 0 but cc.en = 1

- issue occurs frequently but not 100%, some resumes work fine
- easily reproducible
- X is running, as are any open terminals, until disk is required

system is a dell xps13 laptop with a TOSHIBA NVMe.
https://wiki.freebsd.org/Laptops/Dell_XPS13_9360 for full specs &
dmesg/devinfo/diskinfo etc.

https://s3.amazonaws.com/uploads.hipchat.com/8784/2508819/N0PyBJEhSHX3jKu/IMG_2693.JPG
https://s3.amazonaws.com/uploads.hipchat.com/8784/2508819/eLtZ9caTMR7B6eb/IMG_2677.JPG

# dmesg

nvme0: <Generic NVMe Device> mem 0xdc000000-0xdc003fff at device 0.0 on pci4
nvd0: <THNSN5512GPUK NVMe TOSHIBA 512GB> NVMe namespace
nvd0: 488386MB (1000215216 512 byte sectors)

# nvmcontrol info

nvme0: THNSN5512GPUK NVMe TOSHIBA 512GB
    nvme0ns1 (488386MB)
Controller Capabilities/Features
================================
Vendor ID:                  1179
Subsystem Vendor ID:        1179
Serial Number:              376B508IKSJU
Model Number:               THNSN5512GPUK NVMe TOSHIBA 512GB
Firmware Version:           5KDA4103
Recommended Arb Burst:      1
IEEE OUI Identifier:        0d 08 00
Multi-Interface Cap:        00
Max Data Transfer Size:     Unlimited
Controller ID:              0x00

Admin Command Set Attributes
============================
Security Send/Receive:       Supported
Format NVM:                  Supported
Firmware Activate/Download:  Supported
Namespace Managment:         Not Supported
Abort Command Limit:         4
Async Event Request Limit:   4
Number of Firmware Slots:    1
Firmware Slot 1 Read-Only:   No
Per-Namespace SMART Log:     No
Error Log Page Entries:      128
Number of Power States:      5

NVM Command Set Attributes
==========================
Submission Queue Entry Size
  Max:                       64
  Min:                       64
Completion Queue Entry Size
  Max:                       16
  Min:                       16
Number of Namespaces:        1
Compare Command:             Not Supported
Write Uncorrectable Command: Supported
Dataset Management Command:  Supported
Volatile Write Cache:        Present
Size (in LBAs):              1000215216 (953M)
Capacity (in LBAs):          1000215216 (953M)
Utilization (in LBAs):       1000215216 (953M)
Thin Provisioning:           Not Supported
Number of LBA Formats:       2
Current LBA Format:          LBA Format #00
LBA Format #00: Data Size:   512  Metadata Size:     0
LBA Format #01: Data Size:  4096  Metadata Size:     0

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