Mandelbulber / Bugs / #5 Segfault when permissions incorrect

#5 Segfault when permissions incorrect

Status: open-accepted

Owner: nobody

Labels: None

Priority: 2

Updated: 2011-03-24

Created: 2011-02-01

Creator: Danny Burgoyne

Private: No

After installing, the user is notified to copy configuration files into his home directory: "Before using mandelbulber, copy /usr/share/mandelbulber/.mandelbulber to your HOME (even if you installed a previous version)". However, if the permissions/ownership of ~/.mandelbulber are incorrect (after copying from /usr/share/mandelbulber/.mandelbulber, ~/.mandelbulber is owned by root) and Mandelbulber is unable to write to that folder, the program will undergo a segmentation fault when trying to render rather than failing gracefully.

Discussion

Danny Burgoyne - 2011-02-01

priority: 5 --> 2
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Krzysztof Marczak - 2011-03-24

status: open --> pending-accepted
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Krzysztof Marczak - 2011-03-24

Please tell me which version of Mandelbulber caused this problem and which Linux distribution did you use.

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Danny Burgoyne - 2011-03-24

status: pending-accepted --> open-accepted
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Danny Burgoyne - 2011-03-24

This happened with Mandelbulber 0.97 under 64-bit Arch Linux.

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Anonymous - 2011-03-25

Hi, I did the package for archlinux (http://aur.archlinux.org/packages.php?ID=36325),
permissions are correct, you should have used cp from root account.

Hi, I did the package for archlinux \(http://aur.archlinux.org/packages.php?ID=36325\), permissions are correct, you should have used cp from root account.

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Danny Burgoyne - 2011-03-25

I was able to quickly realize what I had done wrong after the problem occurred; the real problem here is that Mandelbulber segfaults when it is unable to write a file instead of failing verbosely (it should say "Could not write file: Permission denied" or something)

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