https://bugzilla.kernel.org/show_bug.cgi?id=15901
Summary: Receiving "Uhhuh. NMI received for unknown reason 2d
on CPU 0." from what seems to be ACPI
Product: ACPI
Version: 2.5
Kernel Version: 2.6.32-19.el6.x86_64
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ACPICA-Core
AssignedTo: acpi_acpica-c...@kernel-bugs.osdl.org
ReportedBy: jus...@salasaga.org
Regression: No
Created an attachment (id=26203)
--> (https://bugzilla.kernel.org/attachment.cgi?id=26203)
Full dmesg output
Recently installed RHEL 6.0 beta, which uses kernel 2.6.32-19.el6.x86_64, on a
box in our test lab.
With ACPI enabled, the box would hard hang at random points during the install.
With ACPI disabled the box works fine, but is showing the errors in the dmesg
output (thus this bug report). This box had Fedora 11 x86_64 loaded
(variations of kernel 2.6.29 and 2.6.30) and running ok on it for months
without a need to disable ACPI.
RHEL 6 beta dmesg errors below, and full message will be attached as an
attachment.
*****************************************************************
CPU0: Intel(R) Core(TM) i5 CPU 750 @ 2.67GHz stepping 05
Booting Node 0, Processors #1
Uhhuh. NMI received for unknown reason 2d on CPU 0.
Do you have a strange power saving mode enabled?
Dazed and confused, but trying to continue
Uhhuh. NMI received for unknown reason 00 on CPU 1.
Do you have a strange power saving mode enabled?
Dazed and confused, but trying to continue
CPU 1 MCA banks CMCI:2 CMCI:3 CMCI:5 SHD:6 SHD:8
#2
Uhhuh. NMI received for unknown reason 00 on CPU 2.
Do you have a strange power saving mode enabled?
Dazed and confused, but trying to continue
CPU 2 MCA banks CMCI:2 CMCI:3 CMCI:5 SHD:6 SHD:8
#3 Ok.
Uhhuh. NMI received for unknown reason 00 on CPU 3.
Do you have a strange power saving mode enabled?
Dazed and confused, but trying to continue
CPU 3 MCA banks CMCI:2 CMCI:3 CMCI:5 SHD:6 SHD:8
Skipped synchronization checks as TSC is reliable.
Brought up 4 CPUs
Total of 4 processors activated (21395.31 BogoMIPS).
Testing NMI watchdog ...
WARNING: CPU#0: NMI appears to be stuck (225->225)!
Please report this to bugzilla.kernel.org,
and attach the output of the 'dmesg' command.
WARNING: CPU#1: NMI appears to be stuck (2->2)!
Please report this to bugzilla.kernel.org,
and attach the output of the 'dmesg' command.
WARNING: CPU#2: NMI appears to be stuck (1->1)!
Please report this to bugzilla.kernel.org,
and attach the output of the 'dmesg' command.
WARNING: CPU#3: NMI appears to be stuck (1->1)!
Please report this to bugzilla.kernel.org,
and attach the output of the 'dmesg' command.
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