Bug 595067

Summary: modules failed to load in kdump kernel
Product: Red Hat Enterprise Linux 6 Reporter: Qian Cai <caiqian>
Component: kexec-toolsAssignee: Neil Horman <nhorman>
Status: CLOSED DUPLICATE QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: medium Docs Contact:
Priority: high    
Version: 6.0   
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-05-24 15:24:19 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---
Attachments:
Description Flags
kdump initrd none

Description Qian Cai 2010-05-23 09:14:20 UTC
Description of problem:
Kdump kernel failed to load several modules on my X200 and KVM guests. I concern about this a general problem that might affect other modules as well (not only the sound drivers here) which can prevent the loss of vmcore.

Loading snd-ac97-codec.ko module
snd_ac97_codec: Unknown symbol snd_interval_refine
snd_ac97_codec: Unknown symbol snd_pcm_hw_rule_add
insmod: can't insert '/lib/snd-ac97-codec.ko': unknown symbol in module, or unknown parameter
Loading snd-seq.ko module
Loading snd-pcm.ko module
Loading snd-intel8x0.ko module
snd_intel8x0: Unknown symbol snd_ac97_pcm_close
snd_intel8x0: Unknown symbol snd_ac97_resume
snd_intel8x0: Unknown symbol snd_ac97_pcm_open
snd_intel8x0: Unknown symbol snd_ac97_set_rate
snd_intel8x0: Unknown symbol snd_ac97_update_bits
snd_intel8x0: Unknown symbol snd_ac97_mixer
snd_intel8x0: Unknown symbol snd_ac97_bus
snd_intel8x0: Unknown symbol snd_ac97_pcm_double_rate_rules
snd_intel8x0: Unknown symbol snd_ac97_update_power
snd_intel8x0: Unknown symbol snd_ac97_suspend
snd_intel8x0: Unknown symbol snd_ac97_get_short_name
snd_intel8x0: Unknown symbol snd_ac97_pcm_assign
snd_intel8x0: Unknown symbol snd_ac97_tune_hardware
insmod: can't insert '/lib/snd-intel8x0.ko': unknown symbol in module, or unknown parameter

Version-Release number of selected component (if applicable):
RHEL6.0-20100522.n.0
kexec-tools-2.0.0-70.el6

How reproducible:
always

Steps to Reproduce:
1. minimal install a RHEL6 on X200 or KVM guest.
2. setup kdump and crash the system
3. watch the kdump kernel boot
  
Actual results:
several failed module load messages.

Expected results:
All modules loaded.

Comment 1 Qian Cai 2010-05-23 09:38:25 UTC
Created attachment 415930 [details]
kdump initrd

Comment 2 Neil Horman 2010-05-24 15:24:19 UTC
This is another dup of the modprobe issue that we've been waiting on jcm for.

*** This bug has been marked as a duplicate of bug 523995 ***