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delta407
Bodhisattva
Joined: 23 Apr 2002
Posts: 2876
Location: Chicago, IL
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 Posted: Tue Jul 02, 2002 2:57 am Post subject: FAM crap-out |
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I can't file a bug report on this, because I don't have any information. Every once-in-a-while, my computer will suddenly become very unresponsive, and upon investigation I quickly find tha my fam process is eating 99.7% of both CPUs. "Crap, dude!" /etc/init.d/fam restart brings life back to normal again...
...for a while. fam ran away twice on me in the past two hours, so I decided to shut it down and keep it dead. (Seems like a good solution, eh?) Anyway, just thought I would say something somewhere in case anyone else is having this issue. |
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Tuxisuau
Apprentice
Joined: 04 May 2002
Posts: 213
Location: Catalunya (Europe)
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| Posted: Tue Jul 02, 2002 12:49 pm Post subject: Same problem |
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I had the same problem with my old debian. Now I simply didn't emerge fam, cause i don't need it. Maybe l'll give it a try again if they seem to solve the problem, so if they do and you know, notify me. Simply answering this thread will be enough ;)
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fkurth
n00b
Joined: 15 Apr 2002
Posts: 27
Location: Dresden/Germany
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| Posted: Wed Jul 03, 2002 5:37 pm Post subject: me too |
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I also had the problem.
But its also possible that a buggy process are asking fam to death....
Is there a way to figure out what processes currently using fam ?
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Felix Kurth |
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fkurth
n00b
Joined: 15 Apr 2002
Posts: 27
Location: Dresden/Germany
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| Posted: Thu Jul 04, 2002 9:43 pm Post subject: Help to track down |
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I opened a bug at:
http://oss.sgi.com/bugzilla/show_bug.cgi?id=158
if you also have this bug, consider helping to track it down. If you have an idea please post...
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Felix Kurth |
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kadmos
n00b
Joined: 22 Jun 2002
Posts: 10
Location: Australia
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| Posted: Fri Jul 05, 2002 4:24 am Post subject: Re: FAM crap-out |
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Hi
I am currently the FAM maintainer. Thanks to Felix for notifying me of
this problem.
I installed Gentoo 1.2 on my home system a while back, and despite
fam-oss being required by KDE, it seemed no xinetd service definition was
provided, and fam was not enabled by default. (I plan on providing a
default xinetd service file in a future FAM release so users don't need to
make their own.)
How is fam being started on your systems? Did you add it to xinetd?
A few Debian users have reported problems with the DNotify patch. Is
anybody able to rebuild FAM without the DNotify patch and tell me
whether they still see this problem?
Is the problem reproducible when running fam with the -d flag? If so,
if somebody could provide the debug output that would be helpful. If not,
please try running fam with the -f flag, which is mostly identical to running
fam with no flags, except it forces fam to stay in the foreground.
What type are the filesystems that are being monitored? Is anybody
seeing this on filesystems other than ReiserFS?
Please continue this thread on the FAM mailing list (fam@oss.sgi.com) or
in SGI's Bugzilla (http://oss.sgi.com/bugzilla).
Thanks
--
MICHAEL WARDLE
wardle@sgi.com |
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delta407
Bodhisattva
Joined: 23 Apr 2002
Posts: 2876
Location: Chicago, IL
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| Posted: Fri Jul 05, 2002 4:26 am Post subject: |
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I'm not running FAM over a network, this is all on local disks. I just use the init script (/etc/init.d/fam start)...
I'll modify it to use -d and keep you posted.
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pjp
Administrator
Joined: 16 Apr 2002
Posts: 15977
Location: Colorado
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| Posted: Fri Jul 05, 2002 4:33 am Post subject: |
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On the off chance anyone else is wondering, FAM is file alteration monitor.
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Safety is my gaol.
US Constitution | Amendments |
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delta407
Bodhisattva
Joined: 23 Apr 2002
Posts: 2876
Location: Chicago, IL
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| Posted: Fri Jul 05, 2002 4:34 am Post subject: |
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| kanuslupus wrote: | | On the off chance anyone else is wondering, FAM is file alteration monitor. |
Or, more thoroughly, man fam:
| Code: | fam(1M) fam(1M)
NAME
fam - file alteration monitor
SYNOPSIS
/usr/etc/fam [ -f | -v | -d ] [ -l | -t NFS_polling_interval ]
[ -T idle_timeout ] [ -p program.version ] [ -L ] [ -C ]
[ -c config_file ]
DESCRIPTION
fam is a server that tracks changes to the filesystem and
relays these changes to interested applications. Applica-
tions such as fm(1G) and mailbox(1) present an up-to-date
view of the filesystem. In the absence of fam, these
applications and others like them are forced to poll the
filesystem to detect changes. fam is more efficient.
Applications can request fam to monitor any files or
directories in any filesystem. When fam detects changes
to monitored files, it notifies the appropriate applica-
tion. The FAM API provides a programmatic interface to
fam; see fam(3X).
fam is informed of filesystem changes as they happen by
the kernel through the imon(7M) pseudo device driver. If
asked to monitor files on an NFS mounted filesystem, fam
tries to use fam on the NFS server to monitor files. If
fam cannot contact a remote fam, it polls the files
instead. fam also polls special files.
Normally, fam is started by inetd(1M). It is registered
with portmap(1M) as performing the sgi_fam service. |
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aardvark
Guru
Joined: 30 Jun 2002
Posts: 576
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| Posted: Fri Jul 05, 2002 10:08 am Post subject: Re: FAM crap-out |
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| kadmos wrote: | Hi
I am currently the FAM maintainer. Thanks to Felix for notifying me of
this problem.
I installed Gentoo 1.2 on my home system a while back, and despite
fam-oss being required by KDE, it seemed no xinetd service definition was
provided, and fam was not enabled by default. (I plan on providing a
default xinetd service file in a future FAM release so users don't need to
make their own.)
How is fam being started on your systems? Did you add it to xinetd?
A few Debian users have reported problems with the DNotify patch. Is
anybody able to rebuild FAM without the DNotify patch and tell me
whether they still see this problem?
Is the problem reproducible when running fam with the -d flag? If so,
if somebody could provide the debug output that would be helpful. If not,
please try running fam with the -f flag, which is mostly identical to running
fam with no flags, except it forces fam to stay in the foreground.
What type are the filesystems that are being monitored? Is anybody
seeing this on filesystems other than ReiserFS?
Please continue this thread on the FAM mailing list (fam@oss.sgi.com) or
in SGI's Bugzilla (http://oss.sgi.com/bugzilla).
Thanks
--
MICHAEL WARDLE
wardle@sgi.com |
ahem, you are the fam maintainer? aha, at sgi, ok! I was thinking; for gentoo 
rc-update add fam default...............
that's the way it is set up to be started at boot time !
starting it, via the script : /etc/init.d/fam start |
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aardvark
Guru
Joined: 30 Jun 2002
Posts: 576
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| Posted: Fri Jul 05, 2002 10:22 am Post subject: |
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Maybe we should patch the kernel to use Imon instead of dnotify.
the patches at sgi are for 2.4.17 however. Would it be easy to pop them into the gentoo kernel? (which is 2.4.18 + -> 2.4.19 isn't it?)
There is also a new fam version. No ebuild yet (it needs a patch for gentoo (dnotify), so i could make the ebuild myself from the prevous one) |
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fkurth
n00b
Joined: 15 Apr 2002
Posts: 27
Location: Dresden/Germany
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fkurth
n00b
Joined: 15 Apr 2002
Posts: 27
Location: Dresden/Germany
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| Posted: Fri Jul 05, 2002 5:34 pm Post subject: |
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I made an ebuild for fam-oss ver. 2.6.8 with dnotify.
See:
http://bugs.gentoo.org/show_bug.cgi?id=4587
for the files.
Please test an report.
(surely this wont solve the current problem)
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kadmos
n00b
Joined: 22 Jun 2002
Posts: 10
Location: Australia
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| Posted: Sat Jul 06, 2002 3:57 am Post subject: |
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| aardvark wrote: | | Maybe we should patch the kernel to use Imon instead of dnotify. |
I'd suggest staying with DNotify as it comes with the standard kernel.
Many users reported using IMon successfully, but it was an extra job for
me to produce IMon patches every time a new Linux kernel was released.
Since DNotify seems to do the job of IMon on Linux, I'm no longer actively
supporting IMon on Linux.
I don't know if the issue that people are having here is due to DNotify --
I just wanted to rule out that possibility.
I've had a look at Gentoo's fam initialization script, and it's interesting
that it uses Debian's "start-stop-daemon". If Debian and Gentoo users
are experiencing similar problems I'll have to remember to see how
FAM interacts with this utility. |
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delta407
Bodhisattva
Joined: 23 Apr 2002
Posts: 2876
Location: Chicago, IL
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| Posted: Sat Jul 13, 2002 6:33 pm Post subject: |
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| delta407 wrote: | | I'll modify it to use -d and keep you posted. |
Well, fam has been running with -d for a week now with no issues to speak of. I'll keep running it, though, so if it breaks again I'll let you know.
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Woolmonkey
n00b
Joined: 29 Apr 2002
Posts: 62
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| Posted: Tue Aug 06, 2002 6:11 am Post subject: |
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| How to you get dnotify to work with fam? |
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aardvark
Guru
Joined: 30 Jun 2002
Posts: 576
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| Posted: Tue Aug 13, 2002 9:35 pm Post subject: |
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| delta407 wrote: | | delta407 wrote: | | I'll modify it to use -d and keep you posted. |
Well, fam has been running with -d for a week now with no issues to speak of. I'll keep running it, though, so if it breaks again I'll let you know. |
Did it work for you? (It's been a while)
Where did you put the -d in the script?
I discovered ( by running it from the console with -d) that when this cpu 100 % thing happens , it throws
| Code: |
*************** overflow famqueue ********************
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onto the console in hight quantity 
Tunrning on fam (while it works) |
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delta407
Bodhisattva
Joined: 23 Apr 2002
Posts: 2876
Location: Chicago, IL
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| Posted: Wed Aug 14, 2002 6:15 am Post subject: |
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| aardvark wrote: | | delta407 wrote: | | delta407 wrote: | | I'll modify it to use -d and keep you posted. |
Well, fam has been running with -d for a week now with no issues to speak of. I'll keep running it, though, so if it breaks again I'll let you know. |
Did it work for you? (It's been a while)
Where did you put the -d in the script? |
Still no issues. The relevant chunk of /etc/init.d/fam:
| Code: | start() {
ebegin "Starting fam"
start-stop-daemon --start --quiet --exec /usr/bin/fam --background \
-- -T 0 -c /etc/fam.conf -d
eend $?
} |
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c_kuzmanic
Guru
Joined: 18 Apr 2002
Posts: 488
Location: Los Angeles , California
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| Posted: Thu Aug 22, 2002 10:49 pm Post subject: fam crap-out |
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| Yep, got the same problem. I've noticed that it usually occurs when I run transcode while encoding avi's. After about 5 minutes or so fam will run amok, causing 99.9 processor load. Heavy disk access seems to trigger the problem at least in my case. |
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aardvark
Guru
Joined: 30 Jun 2002
Posts: 576
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| Posted: Thu Aug 22, 2002 11:08 pm Post subject: |
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There is a new version but it's masked for testing... They should test the old one as well....  |
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Coogee
Apprentice
Joined: 23 Apr 2002
Posts: 184
Location: E.U.
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| Posted: Sat Aug 24, 2002 7:34 pm Post subject: Re: fam crap-out |
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| c_kuzmanic wrote: | | Yep, got the same problem. I've noticed that it usually occurs when I run transcode while encoding avi's. After about 5 minutes or so fam will run amok, causing 99.9 processor load. Heavy disk access seems to trigger the problem at least in my case. |
Yes, I also got problems with fam and encoding avis. Perhaps fam can not handle very big files (> 2 GB). Therefore I switched it off. |
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aardvark
Guru
Joined: 30 Jun 2002
Posts: 576
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| Posted: Sun Sep 22, 2002 10:10 am Post subject: |
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I know, I am "bumpin" this one up again but I have found a relationship concerning fam.
I always used my system with "lisa" to enable browsing on the "windows/samba" lan. Now I turned off lisa (by accident) and guess what! Fam is behaving nicely. I have to admit , that I compiled fam with very basic CFLAGS (-march=athlon -pipe -O3). With big optimizations it will still cause trouble . As soon as I turn on lisa, it is a matter of minutes/hours and FAM will start playing up again.
Just to let you know.... |
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Mustard007
Apprentice
Joined: 31 May 2002
Posts: 235
Location: Montreal, Quebec, Canada
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| Posted: Wed Nov 27, 2002 12:06 am Post subject: |
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Hi !
I have the same trouble now with KDE 3.1rc3.
I have the last GCC3.2.1, Glibc 2.3.1-r2 and Binutils 2.13.90.0.14.
So fam take 99% of cpu when suddently KDE become non responsive.
Thanks ! |
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Mustard007
Apprentice
Joined: 31 May 2002
Posts: 235
Location: Montreal, Quebec, Canada
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| Posted: Thu Nov 28, 2002 3:24 am Post subject: |
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HI !
Fam reach 99% when is the second time i open konqueror.
It's FAM ver. 2.6.9
Imon is activated in the kernel.
What to do now ? Just desactivate FAM ? I want a FAM up and running.
Thanks ! |
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Mustard007
Apprentice
Joined: 31 May 2002
Posts: 235
Location: Montreal, Quebec, Canada
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| Posted: Thu Nov 28, 2002 9:00 pm Post subject: |
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Nobody have this trouble now ??
FAM crap out when i start konqueror. After konqueror can't be opened if i don't kill fam who is at 99%. |
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aardvark
Guru
Joined: 30 Jun 2002
Posts: 576
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| Posted: Sat Nov 30, 2002 10:10 am Post subject: |
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| Mustard007 wrote: | Nobody have this trouble now ??
FAM crap out when i start konqueror. After konqueror can't be opened if i don't kill fam who is at 99%. |
I have 2 duron CPU + via kt133 setups and i'm starting to think the problem lies in there somewhere.... Your's the same config? |
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