Date: Thu, 04 Mar 2004 10:10:46 -0500 From: Chris Shenton <chris@shenton.org> To: freebsd-current@FreeBSD.org Subject: 5.2 "ls -l /" hangs; ^C and kill -9 no help; NFS? 5.1 is OK Message-ID: <86k720bqbt.fsf@PECTOPAH.shenton.org>
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Current and new kernel from last week:
FreeBSD PECTOPAH.shenton.org 5.2-CURRENT FreeBSD 5.2-CURRENT #18: Thu Feb 26 09:24:28 EST 2004 chris@PECTOPAH.shenton.org:/usr/obj/usr/src/sys/PECTOPAH i386
When emacs does or I do in a shell an "ls /" it hangs. Neither ^C nor
^Z help, and root using "kill -9" has no effect on the hung processes:
chris 26189 0.0 0.1 1484 884 ?? Ds Thu11AM 0:00.02 /bin/ls -al -- /netapphome/home/irene/.
root 28121 0.0 0.1 1480 804 p5- T Thu11AM 0:00.01 ls /netapphome/home/irene
chris 28141 0.0 0.1 1484 864 ?? Ds Thu11AM 0:00.02 /bin/ls -al -- /netapphome/.
chris 29120 0.0 0.1 1480 824 p1- D Thu12PM 0:00.01 ls -l /netapphome
root 90027 0.0 0.1 1204 672 ?? I Fri03AM 0:00.01 xargs -0 -n 20 ls -liTd
root 7343 0.0 0.1 1204 672 ?? I Sat03AM 0:00.01 xargs -0 -n 20 ls -liTd
root 15820 0.0 0.1 1204 672 ?? I Sun03AM 0:00.01 xargs -0 -n 20 ls -liTd
root 24685 0.0 0.1 1204 688 ?? I Mon03AM 0:00.01 xargs -0 -n 20 ls -liTd
root 35781 0.0 0.1 1204 688 ?? I Tue03AM 0:00.01 xargs -0 -n 20 ls -liTd
root 47613 0.0 0.1 1204 688 ?? I Wed03AM 0:00.01 xargs -0 -n 20 ls -liTd
root 59320 0.0 0.1 1204 688 ?? I 3:01AM 0:00.01 xargs -0 -n 20 ls -liTd
chris 61576 0.0 0.1 1492 876 ?? Ds 9:20AM 0:00.03 /bin/ls -al -- /.
chris 61585 0.0 0.1 1492 876 ?? Ds 9:21AM 0:00.05 /bin/ls -al -- /.
chris 61592 0.0 0.1 1492 876 ?? Ds 9:21AM 0:00.03 /bin/ls -al -- /.
chris 61638 0.0 0.1 1492 876 ?? Ds 9:24AM 0:00.02 /bin/ls -al -- /.
chris 69510 0.0 0.1 1492 912 ?? Ds 9:35AM 0:00.02 /bin/ls -al -- /.
chris 69534 0.0 0.1 1492 912 p0- D 9:37AM 0:00.01 /bin/ls -al -- /.
chris 69584 0.0 0.1 1492 912 p7- D 9:40AM 0:00.01 /bin/ls -al -- /.
A truss suggests it might be hanging on the NFS mount I have on an old
NetApp. It does NOT hang with simple "ls /netapphome" but does if I
use "ls -l /netapphome". I had hooked up the NetApp last week but had
some problems, so I left the mounts in place. But it looks like some
"ls" I did on those mounts last week are still stuck (Thu11AM above
must be from last week because it's 10am Thursday now).
PECTOPAH# truss ls -l /
[...]
getdirentries(0x4,0x8052000,0x1000,0x804f054) = 1024 (0x400)
lstat("dev",0x8051248) = 0 (0x0)
lstat("home",0x8051348) = 0 (0x0)
lstat("tmp",0x8051448) = 0 (0x0)
lstat("usr",0x8051548) = 0 (0x0)
lstat("var",0x8051648) = 0 (0x0)
lstat("stand",0x8051748) = 0 (0x0)
lstat("etc",0x8051848) = 0 (0x0)
lstat("cdrom",0x8051948) = 0 (0x0)
lstat("bin",0x8051a48) = 0 (0x0)
lstat("boot",0x8051b48) = 0 (0x0)
lstat("mnt",0x8051c48) = 0 (0x0)
lstat("proc",0x8051d48) = 0 (0x0)
lstat("root",0x8051e48) = 0 (0x0)
lstat("sbin",0x8051f48) = 0 (0x0)
break(0x8054000) = 0 (0x0)
lstat("sys",0x8053048) = 0 (0x0)
lstat(".cshrc",0x8053148) = 0 (0x0)
lstat(".profile",0x8053248) = 0 (0x0)
lstat("COPYRIGHT",0x8053348) = 0 (0x0)
lstat("compat",0x8053448) = 0 (0x0)
lstat("home.TOO_SMALL",0x8053548) = 0 (0x0)
lstat("more",0x8053648) = 0 (0x0)
lstat("conf",0x8053748) = 0 (0x0)
lstat("rescue",0x8053848) = 0 (0x0)
lstat("entropy",0x8053948) = 0 (0x0)
lstat("lib",0x8053a48) = 0 (0x0)
lstat("libexec",0x8053b48) = 0 (0x0)
lstat("dist",0x8053c48) = 0 (0x0)
lstat("netapproot",0x8053d48) = 0 (0x0)
Oddly, another box built from 5.1-CURRENT sources mounts the same
NFS filesysetem and does not have this problem:
chris@Thanatos<103> uname -a
FreeBSD Thanatos.shenton.org 5.1-CURRENT FreeBSD 5.1-CURRENT #17: Wed Oct 22 18: 19:18 EDT 2003 root@PECTOPAH.shenton.org:/usr/obj/usr/src/sys/PECTOPAH i386
chris@Thanatos<104> ls -l /netapproot
total 28
d--------- 18 root wheel 20480 Mar 4 09:21 etc
drwxrwxrwt 33 root wheel 8192 Feb 26 15:01 home
I can't umount the shares on the box that hangs because they're busy.
I can't reboot the troubled box right now because I've got a bunch of
network connections going that need to stay.
Any suggestions to help diagnose this? should I do a send-pr on it?
Thanks.
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