[TMPFS] User space program will not core dump

Sepherosa Ziehau sepherosa at gmail.com
Thu Sep 15 02:58:59 PDT 2011

If a user space program opened a file in the tmpfs, then the program
will not core dump upon abort()

This small program could reproduce this:

. /test /tmpfsroot/file
[No core dump here, the test.core size is 0]

. /test /otherfs/file
Abort (core dumped)
[Core dump is correctly generated]

kernel is @a1fa5d8d095e6aa52c4a9ac5d2ab52b03fee54b9

Best Regards,

Tomorrow Will Never Die

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