Red Hat Bugzilla – Bug 453269
autofs uses 100% CPU
Last modified: 2009-07-14 13:59:11 EDT
Version-Release number of selected component (if applicable):
The system is on NIS:
[ekanter@viao590 ~]$ ypcat -k auto.master
/net /etc/auto.net --timeout=60
[ekanter@viao590 ~]$ ypcat -k auto.home
* -rw,intr,rsize=4096,wsize=4096 192.168.1.98:/vol0/kanters/&
I am attaching thread output per
https://bugzilla.redhat.com/show_bug.cgi?id=443505#c5 in case it helps.
Created attachment 310509 [details]
gdb backtrace of autofs
Created attachment 310515 [details]
kernel dump once found on the console during system shutdown
Following a problem report upstream, due to a stupid mistake that
I've made in the past, Al Viro has been looking at the autofs4
code and has pointed out several races (so far) and this looks
like one of them. I'm working to fix them as Al points them out
so hopefully they will make it into the mainline kernel sometime
How often do you see this?
I see it every time the 750mhz system is started and automounted /home/user is
accessed. On 2Ghz system sometimes I don't see the problem. The screenshot was
made on a 2Ghz system.
(In reply to comment #4)
> I see it every time the 750mhz system is started and automounted /home/user is
> accessed. On 2Ghz system sometimes I don't see the problem. The screenshot was
> made on a 2Ghz system.
Right, no doubt it is one of the problems that Al has pointed
out, but still, the daemon shouldn't be doing this. I'll have
A debug log from the daemon may be useful, taken when this
happens with some indication of when it occurred so I can
relate it to the log.
If you can get a log, check out http://people.redhat.com/jmoyer
for instructions to ensure we get the log we need please.
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