Project

General

Profile

Actions
Copy link

Bug #2132

closed

[TMPFS] User space program will not core dump

Added by sepherosa about 13 years ago. Updated about 13 years ago.

Status:
Closed
Priority:
Normal
Assignee:
-
Category:
-
Target version:
-
Start date:
Due date:
% Done:

0%

Estimated time:

Description

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:
http://leaf.dragonflybsd.org/~sephe/test.c

./test /tmpfsroot/file
Abort
[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,
sephe

Files

tmpfs_patch.diff (990 Bytes) tmpfs_patch.diff Anonymous, 10/22/2011 04:21 PM
Actions
Copy link
 #1

Updated by Anonymous about 13 years ago

Can you try this patch? – I added tmpfs_vptofh(). With this change I get the
crash dump after the abort() using your test program.

Actions
Copy link
 #2

Updated by sepherosa about 13 years ago

On Sun, Oct 23, 2011 at 12:21 AM, Tim (via DragonFly issue tracker)
<> wrote:

Tim <> added the comment:

Can you try this patch? – I added tmpfs_vptofh(). With this change I get the
crash dump after the abort() using your test program.

Yeah, the patch works. Committed:
190c11cc003788ace94e0e4872427378627c73af

Thank!

Best Regards,
sephe

Actions
Copy link

Also available in: Atom PDF