Tried this on MIPS platform:
> uname -a Linux (none) 2.6.29 #2 Mon Jan 14 13:26:04 PST 2013 mips GNU/Linux > ulimit -c unlimited > which gzip /bin/gzip > echo "|/bin/gzip - > /home/core-%t-%s-%e.gz" > /proc/sys/kernel/core_pattern > ./fault hello there Segmentation fault (core dumped) > ls /home/core*.gz ls: /home/core*: No such file or directory
i.e. piping to a program doesn’t work. if I specify a file:
> echo "/home/core-%t-%s-%e" > /proc/sys/kernel/core_pattern
then it works. What did I miss?
Perhaps it fail because the kernel doesn’t run any shell, but try to execute a program.
Try to wrap the gzip invocation with the redirection in a script and use that script.
Answered By – Yann Droneaud