Bug 1268348 - Kernel 4.1.7 fails to boot with FIFO underrun error.
Kernel 4.1.7 fails to boot with FIFO underrun error.
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
x86_64 Unspecified
unspecified Severity unspecified
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
Depends On:
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Reported: 2015-10-02 11:11 EDT by Thomas Drake-Brockman
Modified: 2015-10-11 11:28 EDT (History)
6 users (show)

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Doc Type: Bug Fix
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Last Closed: 2015-10-11 11:28:01 EDT
Type: Bug
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Description Thomas Drake-Brockman 2015-10-02 11:11:09 EDT
Description of problem:
On a Lenovo ThinkPad W530, after upgrading to kernel 4.1.7 Fedora fails to boot correctly, instead booting to the emergency shell.

In dmesg the following lines are found:
[    2.292591] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
[    2.292631] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun

Also, the following lines are found in systemctl:
● boot-efi.mount                                                                            loaded failed failed    /boot/efi
● proc-fs-nfsd.mount                                                                        loaded failed failed    NFSD configuration filesystem
● var-lib-nfs-rpc_pipefs.mount                                                              loaded failed failed    RPC Pipe File System
● auditd.service                                                                            loaded failed failed    Security Auditing Service

Version-Release number of selected component (if applicable): 4.1.7-200.fc22

How reproducible: 100%

Steps to Reproduce:
1. Upgrade kernel to 4.1.7
2. Reboot

Actual results:
Emergency shell.

Expected results:

Additional info:
Comment 1 Thomas Drake-Brockman 2015-10-10 08:38:53 EDT
Resolved by kernel 4.1.10.
Comment 2 Josh Boyer 2015-10-11 11:28:01 EDT
Thank you for letting us know.

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