[Dirvish] find looping?
dhoworth at mrc-lmb.cam.ac.uk
Thu Feb 9 09:03:40 EST 2006
Paul Slootman wrote:
> So here's hoping it happens again soon :-)
I left it running so I could debug it this time :)
> That means that it's not doing any system calls at all, it's
> looping somewhere in user space, i.e. in the find executable itself.
> ltrace would show if it's doing any shared library calls at that time...
> lsof would show what directory it's in i.e. processing.
# lsof -p 741
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
find 741 root cwd DIR 253,5 544 3959272
find 741 root rtd DIR 3,1 680 2 /
find 741 root txt REG 3,1 66216 36947 /usr/bin/find
find 741 root mem REG 3,1 106608 20736 /lib64/ld-2.3.3.so
find 741 root mem REG 3,1 217016 80878 /var/run/nscd/passwd
find 741 root mem REG 3,1 217016 80879 /var/run/nscd/group
find 741 root mem REG 3,1 1412174 20761 /lib64/tls/libc.so.6
find 741 root 0r FIFO 0,7 173073427 pipe
find 741 root 1w FIFO 0,7 173145580 pipe
find 741 root 2w REG 3,1 1798 85303
find 741 root 3r DIR 3,1 816 13368 /root
I did it again after a little while and confirmed identical results (not
surprising given there was no strace output)
> You do have the most recent version of findutils?
Almost certainly not :) It's a SUSE 9.2 system, in production, so I
don't really want to change things until I have to. find says it is "GNU
find version 4.1.20". The package is 4.1.20-2.
Duh. I now feel like a clot. I reported this on bug-findutils last June
and had forgotten all about it! At that time, it appeared that it was an
unknown bug and I was waiting for it to happen again to send a core file.
So Paul, thanks for help with those commands and for prompting me to
remember where I was. I will send James Youngman a core file.
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