[Bug 422536] Re: EDAC amd64: WARNING: ECC is NOT currently enabled by the BIOS. Module will NOT be loaded.

[James Westby]

Please refrain from changing the status of this bug report without giving
a rationale.

This bug is not yet fixed, but I just uploaded a change that will mean you
stop getting pestered about it. That change should hit your machines in
about a week after it has gone through testing.

I am well aware that this problem will go away, so reports that it is "fixed"
at that time will be useless. The problem will not be fixed, we will have just
stopped the nagging.

Thanks,

James


** Description changed:

- ?
+ The edac_amd64 module attempts to load on many systems. If the system doesn't have ECC
+ memory, or it is disabled in the BIOS, then the module prints
+ 
+ EDAC amd64: WARNING: ECC is NOT currently enabled by the BIOS. Module will NOT be loaded.
+     Either Enable ECC in the BIOS, or use the 'ecc_enable_override' parameter.
+     Might be a BIOS bug, if BIOS says ECC is enabled
+     Use of the override can cause unknown side effects.
+ 
+ before failing to load. This won't cause issues for most people that see
+ the message.
+ 
+ kerneloops picks this up as  kernel problem as the "WARNING:" looks a lot like what
+ you get when using WARN().
+ 
+ There are several aspects to this issue:
+ 
+   * linux
+      - something attempts to load the module when perhaps it doesn't need to (unclear at this point)
+      - the module looks like it is using WARN() when it isn't, and is arguably more SHOUTY than
+        it needs to be.
+   * kerneloops
+      - picks up this as WARN() when it isn't.
+      - Was accidentally left enabled for the stable release, people shouldn't be getting asked to report
+         this at this point.
+      - Isn't very good at dealing with repeat issues, causing more reports to be sent than are needed.
+ 
+ and possibly others as well.
  
  ProblemType: KernelOops
  Annotation: Your system might become unstable now and might need to be restarted.
  Architecture: amd64
  AudioDevicesInUse:
-  USER        PID ACCESS COMMAND
-  /dev/snd/controlC0:  yoman82    3464 F.... pulseaudio
-  /dev/snd/pcmC0D0p:   yoman82    3464 F...m pulseaudio
+  USER        PID ACCESS COMMAND
+  /dev/snd/controlC0:  yoman82    3464 F.... pulseaudio
+  /dev/snd/pcmC0D0p:   yoman82    3464 F...m pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  Card0.Amixer.info:
-  Card hw:0 'SB'/'HDA ATI SB at 0xf9ff0000 irq 16'
-    Mixer name	: 'Realtek ALC888'
-    Components	: 'HDA:10ec0888,18491e01,00100001'
-    Controls      : 37
-    Simple ctrls  : 21
+  Card hw:0 'SB'/'HDA ATI SB at 0xf9ff0000 irq 16'
+    Mixer name	: 'Realtek ALC888'
+    Components	: 'HDA:10ec0888,18491e01,00100001'
+    Controls      : 37
+    Simple ctrls  : 21
  Date: Tue Sep  1 07:48:00 2009
  DistroRelease: Ubuntu 9.10
  Failure: oops
  HibernationDevice: RESUME=UUID=69c64130-cc6f-4a5b-952b-3ba4c893ba48
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  NonfreeKernelModules: nvidia
  Package: linux-image-2.6.31-8-generic 2.6.31-8.28
  PccardctlIdent:
-  
+ 
  PccardctlStatus:
-  
+ 
  ProcCmdLine: root=UUID=19f3bdd6-1b33-48e0-8081-d00e178d9f7d ro splash vga=792
  ProcVersionSignature: Ubuntu 2.6.31-8.28-generic
  RelatedPackageVersions:
-  linux-backports-modules-2.6.31-8-generic N/A
-  linux-firmware 1.16
+  linux-backports-modules-2.6.31-8-generic N/A
+  linux-firmware 1.16
  RfKill:
-  0: phy0: Wireless LAN
-  	Soft blocked: no
-  	Hard blocked: no
+  0: phy0: Wireless LAN
+   Soft blocked: no
+   Hard blocked: no
  SourcePackage: linux
  Tags: kernel-oops
  Title:     6.073813] EDAC amd64: WARNING: ECC is NOT currently enabled by the BIOS. Module will NOT be loaded.
  Uname: Linux 2.6.31-8-generic x86_64
  WifiSyslog:
-  
+ 
  WpaSupplicantLog:
-  
+ 
  dmi.bios.date: 04/24/2009
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P1.00
  dmi.board.name: M3A780GXH/128M
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP1.00:bd04/24/2009:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnM3A780GXH/128M:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

-- 
EDAC amd64: WARNING: ECC is NOT currently enabled by the BIOS. Module will NOT be loaded.
https://bugs.launchpad.net/bugs/422536
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