Date: Mon, 22 Feb 1999 17:44:58 +0100 From: "Alexander N. Kabaev" <kan@sti.cz> To: freebsd-current@FreeBSD.ORG Subject: Filesystem deadlock Message-ID: <36D1898A.6D9C7B44@sti.cz>
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The following script reliably causes FreeBSD 4.0-CURRENT (and 3.1-STABLE
as of today) to lookup. Shortly after this script is started, all disk activity
stops and any attempt to create new process causes system to freese. While in DDB, ps command
shows, that all ten fgrep processes are sleeping on inode, all xargs are in waitpid and
all sh processes are in wait.
Unfortunately, I cannot run -g kernel on my box
at this time, so amount of useful information I can provide is pretty much
limited :(
#!/bin/sh
for j in 1 2 3 4 5 6 7 8 9 10; do
echo -n $i $j
nohup sh -c 'while :; do find /usr -type f | xargs fgrep zukabuka;
done' \
>/dev/null 2>&1 &
echo
done
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