Bug 119330 - /proc/acpi/event unreadable
Summary: /proc/acpi/event unreadable
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: rawhide
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Dave Jones
QA Contact: Brian Brock
Depends On:
Blocks: FC2Target FC3Target FC4Target
TreeView+ depends on / blocked
Reported: 2004-03-29 16:10 UTC by Dan Williams
Modified: 2015-01-04 22:05 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2004-11-19 03:42:54 UTC
Type: ---

Attachments (Terms of Use)

Description Dan Williams 2004-03-29 16:10:43 UTC
On two FC2 Test 2 machines, /proc/acpi/event is unreadable, which
means that acpid cannot start.  root cannot 'cat /proc/acpi/event',
which returns:

/bin/cat: /proc/acpi/event: Device or resource busy

and acpid also complains that it cannot open /proc/acpi/event. 
Therefore, acpid does not start.  This happens regardless of whether
SELinux is in enforcing mode or not.

Comment 1 Arjan van de Ven 2004-03-29 17:17:47 UTC
anything in dmesg re acpi ?
does it work with selinux=0 ?

Comment 2 Sahil Verma 2004-03-30 08:45:10 UTC
What is the output of ps -ef | grep `fuser /proc/acpi/event | awk
'{print $2}'`

Comment 3 Dan Williams 2004-03-30 16:35:19 UTC
selinux=0 kernel panics (attempt to kill init)  I'm attempting to yum
upgrade to find out.

kernel version is: 2.6.3-

Comment 4 Bill Nottingham 2004-07-21 15:44:50 UTC
Does this work in current trees?

Comment 5 Dan Williams 2004-07-21 16:07:11 UTC
Its still broken.  Doing a 'sudo cat /proc/acpi/event' still returns
busy.  The fuser/awk thing also doesn't work, as fuser
/proc/acpi/event | awk ... returns nothing, hence grep has nothing to

Kernel 2.6.7-1.488smp

Comment 6 Dave Jones 2004-11-19 03:42:54 UTC
you need to talk to acpid.  the event file can only be opened exclusively, and
acpid stole it already.

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