Bug 228059 - Intel sound cards on 4.5 kernel beta may panic system on boot
Summary: Intel sound cards on 4.5 kernel beta may panic system on boot
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel
Version: 4.0
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: Jason Baron
QA Contact: Brian Brock
Depends On:
TreeView+ depends on / blocked
Reported: 2007-02-09 19:31 UTC by Jason Baron
Modified: 2013-03-06 05:59 UTC (History)
2 users (show)

Fixed In Version: RHBA-2007-0304
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2007-05-08 04:50:17 UTC
Target Upstream Version:

Attachments (Terms of Use)
patch to fix the problem (536 bytes, patch)
2007-02-09 19:31 UTC, Jason Baron
no flags Details | Diff

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2007:0304 0 normal SHIPPED_LIVE Updated kernel packages available for Red Hat Enterprise Linux 4 Update 5 2007-04-28 18:58:50 UTC

Description Jason Baron 2007-02-09 19:31:20 UTC
Description of problem:

on 4.5 beta system with and intel audio sound card may panic on boot.
Specifically, i have model 82801G(ICH7) on a new kentsfield system.

Version-Release number of selected component (if applicable):

reproduces on 2.6.9-46.EL

How reproducible:

boot the box

Steps to Reproduce:
Actual results:

Unable to handle kernel NULL pointer dereference at 0000000000000000 RIP:
PML4 729b5067 PGD 76a8b067 PMD 0
Oops: 0000 [1] SMP
Modules linked in: md5 ipv6 parport_pc lp parport autofs4 i2c_dev i2c_core
sunrpc ds yenta_dPid: 3649, comm: alsactl Not tainted 2.6.9-45.ELsmp
RIP: 0010:[<ffffffffa0148193>]
RSP: 0018:000001007292fb58  EFLAGS: 00010206
RAX: 000001007fdd4400 RBX: 000001007f19c2c0 RCX: 0000000000000000
RDX: 000001007f19c2c0 RSI: 000001007292fc28 RDI: 0000000000000000
RBP: 000001007fdd4d68 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 000001007292fc28
R13: 0000007fbffff2e0 R14: 000001007fdd4c00 R15: 000001007736b780
FS:  0000002a95e05140(0000) GS:ffffffff804ed500(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000000 CR3: 0000000000101000 CR4: 00000000000006e0
Process alsactl (pid: 3649, threadinfo 000001007292e000, task 0000010076b507f0)
Stack: 0000000000000000 ffffffffa00fcb2f 00000005db3863a8 00000100746ee030
       0000010002142760 0000000000000000 000001007292fbb8 ffffffff80132a8f
       0000000000000002 0000010002142760
Call Trace:<ffffffffa00fcb2f>{:snd:snd_ctl_ioctl+1180}
       <ffffffff801d22ec>{avc_has_perm+70} <ffffffff8016a65a>{do_no_page+1712}
<ffffffff801eba95>{__up_read+16}       <ffffffff801247e9>{do_page_fault+577}
       <ffffffff8018bbc5>{sys_ioctl+853} <ffffffff8011026a>{system_call+126}

Code: 8b 07 49 89 f8 89 46 50 8b 17 48 8d 7e 58 8b 46 54 8d 4a ff
RIP <ffffffffa0148193>{:snd_hda_codec:snd_hda_input_mux_info+16} RSP
CR2: 0000000000000000
 <0>Kernel panic - not syncing: Oops

Expected results:

no panic

Additional info:

Comment 1 Jason Baron 2007-02-09 19:31:20 UTC
Created attachment 147797 [details]
patch to fix the problem

Comment 2 Jason Baron 2007-02-09 19:33:00 UTC
Also worth noting is that no sound comes out of the box on either U4 or U5 with
the patch mentioned in comment #1. This patch is being proposed as a temporary
solution. Upstream kernles produce sound, but this would require a more
extensive backport to get working properly.

Comment 3 Jason Baron 2007-02-23 22:25:24 UTC
This system booted fine on U4, while U5 panics the system on boot.

Comment 4 RHEL Program Management 2007-02-23 23:05:27 UTC
Since Keyword Regression exists, this is a blocker,
not an exception.  Cleared exception flag.
Set blocker flag."

Comment 5 RHEL Program Management 2007-02-26 21:03:26 UTC
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update

Comment 8 Jason Baron 2007-02-27 20:23:02 UTC
committed in stream U5 build 49. A test kernel with this patch is available from

Comment 11 Red Hat Bugzilla 2007-05-08 04:50:17 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.


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