Core dumps for threads

Don Dugger (n0ano@valinux.com)
Sat, 24 Feb 2001 13:45:23 -0800


Can anyone explain why this test is in routine `do_coredump'
in file `fs/exec.c' in the 2.4.0 kernel?

if (!current->dumpable || atomic_read(&current->mm->mm_users) != 1)
goto fail;

The only thing the test on `mm_users' seems to be doing is stopping
a thread process from dumping core. What's the rationale for this?

-- 
Don Dugger
"Censeo Toto nos in Kansa esse decisse." - D. Gale
n0ano@valinux.com
Ph: 303/938-9838
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