Bug 1486133

Summary:	saa7134_alsa produces lots of same error
Product:	[Fedora] Fedora	Reporter:	Andreas Kriegl <andreas.kriegl>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED INSUFFICIENT_DATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	26	CC:	airlied, ajax, andreas.kriegl, bskeggs, eparis, esandeen, hdegoede, ichavero, itamar, jarodwilson, jforbes, jglisse, jonathan, josef, jwboyer, kernel-maint, labbott, linville, m.a.young, mchehab, mjg59, nhorman, quintela, zlobogad
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Last Closed:	2018-03-20 20:26:02 UTC	Type:	Bug
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Description Andreas Kriegl 2017-08-29 06:47:49 UTC

Description of problem:
/var/log/messages is flooded by:
  kernel: saa7134_alsa: saa7134_alsa_dma_map: saa7134_alsa_map_sg failed
  kernel: nommu_map_sg: overflow 17d31e000+4096 of device mask ffffffff


Version-Release number of selected component (if applicable):
since upgrade from kernel 4.11.12-300 to 4.12.5-300


How reproducible:
On evevry boot

Steps to Reproduce:
1.
2.
3.

Actual results:


Expected results:


Additional info:

Comment 1 Roman 2017-09-01 14:08:52 UTC

Yes, I also had this problem.
I have forbidden loading of the module saa7134_alsa - the system works, but there is no sound in the TVTime.

Comment 2 Laura Abbott 2018-02-28 03:55:23 UTC

We apologize for the inconvenience.  There is a large number of bugs to go through and several of them have gone stale. The kernel moves very fast so bugs may get fixed as part of a kernel update. Due to this, we are doing a mass bug update across all of the Fedora 26 kernel bugs.
 
Fedora 26 has now been rebased to 4.15.4-200.fc26.  Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel.
 
If you have moved on to Fedora 27, and are still experiencing this issue, please change the version to Fedora 27.
 
If you experience different issues, please open a new bug report for those.

Comment 3 Andreas Kriegl 2018-03-20 20:13:22 UTC

I have also blacklist'ed saa7134_alsa (which had not bad effect)
and I'm using kernel-4.15.9-300.fc27.x86_64 now.

Comment 4 Laura Abbott 2018-03-20 20:26:02 UTC

Since people just have the module blacklisted, I'm going to close the bug for now. Feel free to reopne the bug if it's still present on 4.15 or later.