Messages in this thread |  | | Date | Tue, 04 Sep 2001 20:33:15 +0100 | From | Anton Altaparmakov <> | Subject | Re: help!! tons of Z processes in 2.4.x (x > 3) |
| |
At 20:23 04/09/2001, Alan Cox wrote: > > Since 2.4.6-ac[45] until 2.4.9-ac7 I keep on getting processes in Z > > state, mainly identd (spawned from an identd daemon), galeon (the gnome > > browser) and mysqld. > >Sounds like user mode problems to me. Z is a zombie - its waiting for its >parent to wake up and collect its exit code. Look at their ppid see what >the parent is and is doing > > > An strace to the process ends immediately with the following message: > > # strace -p 3697 > > attach: ptrace(PTRACE_ATTACH, ...): Operation not permitted > > It doesn't matter wheater I'm root or not. > >Yep - it doesnt really exist except as a process slot > > > If I run the redhat-7.1 kernel (kernel-2.4.3-12) this doesn=A1't happen, = > > so > > I deduce it has something to do with recent changes. > > > > I'm surprised that I'm the only one with this problem. > >So far you are
I am seeing zombies as well. This coincided with me installing SuSE 7.2 on my Athlon so I thought it to be user space...
I have only really noticed this with cron processes. A random example, ps ax says:
9862 ? Z 0:00 [cron <defunct>]
Looking at ppid we find the parent process /usr/sbin/cron which is in S state.
Seems to be harmless though, as the zombies just disappear after a little while so I never bothered reporting to anyone.
Just my 2p.
Anton
-- "Nothing succeeds like success." - Alexandre Dumas -- Anton Altaparmakov <aia21 at cam.ac.uk> (replace at with @) Linux NTFS Maintainer / WWW: http://linux-ntfs.sf.net/ ICQ: 8561279 / WWW: http://www-stu.christs.cam.ac.uk/~aia21/
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
|  |