Date: Tue, 2 Sep 2003 09:10:17 -0700 (PDT) From: "James F. Hranicky" <jfh@cise.ufl.edu> To: freebsd-bugs@FreeBSD.org Subject: Re: conf/56031: ipfw hangs on every invocation Message-ID: <200309021610.h82GAHZY023411@freefall.freebsd.org>
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The following reply was made to PR conf/56031; it has been noted by GNATS.
From: "James F. Hranicky" <jfh@cise.ufl.edu>
To: Robert Watson <rwatson@FreeBSD.org>
Cc: FreeBSD-gnats-submit@FreeBSD.org, admin@cise.ufl.edu,
freebsd-bugs@FreeBSD.org
Subject: Re: conf/56031: ipfw hangs on every invocation
Date: Tue, 2 Sep 2003 12:02:42 -0400
On Thu, 28 Aug 2003 10:07:55 -0400 (EDT)
Robert Watson <rwatson@FreeBSD.org> wrote:
>
> On Wed, 27 Aug 2003, James F. Hranicky wrote:
>
> > Upon upgrade to 4.8-STABLE #30: Tue Aug 12 11:51:33 EDT 2003, ipfw hangs each
> > time it is called.
[ ... ]
> Could you send the output of "ps axlwww" showing the hung ipfw process, as
> well as its parent process? When you run ipfw on the command line using
> the same arguments found in the periodic script, does it hang? If so,
> what do you see when you press Ctrl-T?
Yes, any invocation of ipfw hangs. Here is the strace output -- oddly enough,
it looks like some kind of terminal issue:
# strace -f ipfw list
execve("/sbin/ipfw", ["ipfw", "list"], [/* 27 vars */]) = 0
readlink("/etc/malloc.conf", 0xbfbff950, 63) = -1 ENOENT (No such file or directory)
mmap(0, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0) = 0x28087000
break(0x8098000) = 0
break(0x8099000) = 0
ioctl(0, TIOCGETA, {B38400 opost isig icanon echo ...}) = 0
break(0x809a000) = 0
socket(PF_INET, SOCK_RAW, IPPROTO_RAW) = 3
getsockopt(3, IPPROTO_IP, 54, [0], [176]) = 0
fstat(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(5, 0), ...}) = 0
break(0x809b000) = 0
ioctl(1, TIOCGETA, {B38400 opost isig icanon echo ...}) = 0
The parent process is /bin/sh when called from cron:
# p | grep ipfw
root root 43032 42979 0.0 0.1 644 260 ?? I Sat03AM 0:00.00
/bin/sh - /etc/periodic/security/500.ipfwdenied
root root 43034 43032 23.7 0.0 488 164 ?? R Sat03AM 2459:26.28 ipfw -a l
root root 56542 56489 0.0 0.1 644 264 ?? I Sun03AM 0:00.00
/bin/sh - /etc/periodic/security/500.ipfwdenied
root root 56544 56542 23.9 0.0 488 164 ?? R Sun03AM 1164:21.71 ipfw -a l
root root 67717 67664 0.0 0.1 644 264 ?? I Mon03AM 0:00.00
/bin/sh - /etc/periodic/security/500.ipfwdenied
root root 67719 67717 24.2 0.0 488 164 ?? R Mon03AM 512:16.35 ipfw -a l
root root 78835 78782 0.0 0.1 644 268 ?? I 3:01AM 0:00.00
/bin/sh - /etc/periodic/security/500.ipfwdenied
root root 78837 78835 23.5 0.0 488 164 ?? R 3:01AM 83:18.34 ipfw -a l
The parent process is zsh from the command line:
0 377 357 0 18 0 2248 1964 pause I p0 0:00.11 zsh
0 449 377 139 45 0 464 288 - R+ p0 0:32.93 ipfw list
Ctrl-T shows this when run from the command line:
<root@palm:~> # ipfw list
load: 0.32 cmd: ipfw 396 [running] 1.45u 0.00s 4% 288k
load: 0.32 cmd: ipfw 396 [running] 3.04u 0.00s 9% 288k
load: 0.32 cmd: ipfw 396 [running] 4.68u 0.00s 18% 288k
load: 0.37 cmd: ipfw 396 [running] 6.09u 0.00s 25% 288k
load: 0.37 cmd: ipfw 396 [running] 7.79u 0.00s 29% 288k
load: 0.37 cmd: ipfw 396 [running] 9.47u 0.00s 36% 288k
load: 0.42 cmd: ipfw 396 [running] 11.12u 0.00s 42% 288k
This goes to 99% CPU utiliztion quickly.
An upgrade to
4.9-PRERELEASE #31: Tue Sep 2 08:35:32
does not seem to fix the problem.
Let me know if I can provide any more info.
Jim
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