Bug 840235

Summary: kernels 3.5.0 fail to recognize hard disks on a system and consequently do not boot
Product: [Fedora] Fedora Reporter: Michal Jaegermann <michal>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: rawhideCC: atkac, gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda
Target Milestone: ---   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-07-24 23:59:46 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
dmesg from a "normal" boot (with a USB memory attached)
none
dmesg for 3.4.0-0.rc4.git2.1.fc18.x86_64 where disks are recognized
none
dmesg for 3.5.0-1.fc18.x86_64 which notices disks again none

Description Michal Jaegermann 2012-07-14 17:12:58 UTC 
Description of problem:

Booting 3.5.0-... kernels results in all hard disks "not there".  Not surprisingly this makes booting, ahem, difficult.

An additional kernel parameter pci=nomsi makes disks recognizable again but why this and not something else it is hard to guess.

Version-Release number of selected component (if applicable):
kernel-3.5.0-0.rc6.git3.1.fc18.x86_64

How reproducible:
always

Additional info:
/dev/sda for 3.5.0-0.rc6.git3.1.fc18.x86_64, as seen in an attached dmesg, comes from a recognition of a USB memory stick which I used to get a copy of an output.

I tried yesterday with 3.5.0-0.rc6.git2.1.fc18.x86_64 kernel and results were exactly the same.  I was away for a while so the next older kernel I have on hands is 3.4.0-0.rc4.git2.1.fc18.x86_64 which does see disks (dmesg output attached for comparisons).  No idea when this failure showed up for the first time.
Comment 1 Michal Jaegermann 2012-07-14 17:14:25 UTC 
Created attachment 598263 [details]
dmesg from a "normal" boot (with a USB memory attached)
Comment 2 Michal Jaegermann 2012-07-14 17:21:04 UTC 
Oops!  Contrary to what I wrote 'pci=nomsi' does not help.  I made a mistake and booted an old kernel.
Comment 3 Michal Jaegermann 2012-07-14 17:22:21 UTC 
Created attachment 598264 [details]
dmesg for 3.4.0-0.rc4.git2.1.fc18.x86_64 where disks are recognized
Comment 4 Michal Jaegermann 2012-07-20 17:29:56 UTC 
So far none of kernel-3.5.0 kernels sees any disks.  The last one tried was
3.5.0-0.rc7.git2.2.fc18.x86_64
Comment 5 Michal Jaegermann 2012-07-24 23:59:12 UTC 
Created attachment 600183 [details]
dmesg for 3.5.0-1.fc18.x86_64 which notices disks again

Kernel 3.5.0-1.fc18.x86_64 started to recognize hard disks again. An output from dmesg for this kernel is attached for completness.