Red Hat Bugzilla – Bug 807593
Since kernel 3.3.0-4.fc16.i686 during boot and resume from hibernate there's a pause and message: ata2: link is slow to respond, please be patient
Last modified: 2012-04-09 14:34:10 EDT
Description of problem:
Since kernel 3.3.0-4.fc16.i686 I have found that during boot, and also when resuming from hibernate this message appears on screen (and also in /var/log/messages) with a pause of a couple of seconds before and after:
ata2: link is slow to respond, please be patient (ready=0)
Version-Release number of selected component (if applicable):
Fedora 16 kernel 3.3.0-4 (fixed a bug that caused pm-hibernate to crash often).
Happens always during boot, and most times during resume from hibernate.
Steps to Reproduce:
1. boot, or resume from pm-hibernate
(I use runlevel 3 - so do not enter graphical mode during booting and only at a very late stage during resume. People who start in graphical mode may not see this problem, unless they look in /var/log/messages. It will nevertheless add several seconds to time for boot/resume.)
2. Watch screen, just before resolution changes to high resolution.
Typical entries before and after this in the messages file look like this:
Mar 22 21:44:23 lape kernel: [ 2.820715] input: DualPoint Stick as /devices/platform/i8042/serio1/input/input5
Mar 22 21:44:23 lape kernel: [ 2.834428] input: AlpsPS/2 ALPS DualPoint TouchPad as /devices/platform/i8042/serio1/input/input6
Mar 22 21:44:23 lape kernel: [ 7.038582] ata2: link is slow to respond, please be patient (ready=0)
Mar 22 21:44:23 lape kernel: [ 11.727992] ata2: COMRESET failed (errno=-16)
Mar 22 21:44:23 lape kernel: [ 12.032830] ata2: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
Mar 22 21:44:23 lape kernel: [ 12.034832] ata2.00: ATAPI: MATSHITA DVD+/-RW UJ892, 1.05, max UDMA/100
Mar 22 21:44:23 lape kernel: [ 12.037766] ata2.00: configured for UDMA/100
Mar 22 21:44:23 lape kernel: [ 12.041771] scsi 1:0:0:0: CD-ROM MATSHITA DVD+-RW UJ892 1.05 PQ: 0 ANSI: 5
Expected results: Should not pause. Did not pause in earlier versions of f16 kernel.
This happens on Dell Latitude E6410 laptop:
Display: WXGA+ Anti-Glare 1440x900 display (14" diagonal)
Memory: 4GB (2x2048MB) 1066MHz DDR3 Dual Channel
CPU: Intel. CoreTM i5-540M (2.53GHz, 3M cache) with Turbo Boost Technology (four core)
Graphics: Intel: HD Graphics With Express Card
Often referred to as Intel GMA 500
Hard Drive: 500GB SATA 7,200rpm hard drive,
Media Bay: 8X DVD+/-RW Dri
Wireless: EMEA Intel Pro Wireless 6200 (802.11a/g/Draft-n 2X2) Mini Card
Ethernet: Intel Corporation 82577LM Gigabit Network Connection
Webcam: Integrated HD webcam with Microphone
Internal UK/Irish Qwerty Backlit Keyboard
Alps touch pad
I've used smartctl to test my hard drive and found no errors.
I can live with this, but thought I should report it in case it is a bug that should be fixed.
Google shows that "COMRESET failed (errno=-16)" is mentioned in several queries and bug reports in older versions of linux. I have checked my 'messages' files on the E6410 going back to January 2012 and find no sign of this before kernel 3.3.0-4.fc16.i686
Does it work without pause in older kernels?
(In reply to comment #1)
> Does it work without pause in older kernels?
Yes. I had never seen this pause or error message before 3.3.0-4 (and I have been updating regularly in hope of finding hibernate fixed). E.g. it was definitely not there in the previous F16 3.3 kernel). So some change between immediately preceding version and 3.3.0-4 must have introduced this. If necessary I could go back to an earlier kernel and test.
I've not seen this at all on my desktop machine, also using intel core i5 and intel graphics, but running fedora 15.
This behaviour persists in the latest patch kernel .3.0-7.1.fc16.i686 #1 SMP Wed Mar 28 19:04:51 UTC 2012
(In reply to comment #3)
> This behaviour persists in the latest patch kernel .3.0-7.1.fc16.i686 #1 SMP
> Wed Mar 28 19:04:51 UTC 20
Correcting typo: that should have been
3.3.0-7.1.fc16.i686 #1 SMP Wed Mar 28 19:04:51 UTC 2012
Thanks for reporting, it is kernel regression,
upstream ticket with link to patch:
Reassigning to kernel folks to review/apply the patch.
(In reply to comment #5)
> Reassigning to kernel folks to review/apply the patch.
Thanks for responding. Still present in the latest kernel installed by yum update: 3.3.0-8.fc16.i686
Seems to be fixed in 3.3.1-3.fc16.i686
Many thanks. Resume is now very fast.
I don't know how to change the bug status to "fixed"
Thanks for letting us know.