Opened 11 years ago
Last modified 11 years ago
#11571 closed defect
mkdir() returns EEXISTS, stat() returns ENOENT in vboxsf — at Version 4
Reported by: | zyga | Owned by: | |
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Component: | shared folders | Version: | VirtualBox 4.1.22 |
Keywords: | mkdir stat EEXISTS ENOENT | Cc: | |
Guest type: | Linux | Host type: | Linux |
Description (last modified by )
This occurred on Ubuntu 13.04 with VirtualBox 4.1.22 from the Ubuntu archive.
In essence, in certain non-root directory of a vboxsf mounted directory, mkdir() returns EEXIST while stat() returns ENOENT, as shown by this strace snippet below:
mkdir("plainbox.egg-info", 0777) = -1 EEXIST (File exists) stat64("plainbox.egg-info", 0xbfd696fc) = -1 ENOENT (No such file or directory) write(2, "error: could not create 'plainbo"..., 57error: could not create 'plainbox.egg-info': File exists
I wrote a minimal program that reproduces the issue: https://gist.github.com/zyga/5110513
Feel free to ask for more information
Change History (4)
comment:1 by , 11 years ago
comment:2 by , 11 years ago
Comment 1 is incorrect. The bug still exists on -10 and -11 kernels.
I've published a long blog post about it: http://blog.suxx.pl/2013/03/post-mortem-chasing-elusive-bugs.html
As stated in one of the latter comments the suspected sequence of actions that trigger the bug is:
1) [host] start a VM 2) [host] share a folder 3) [guest] create directory in shared folder 4) [host] remove the directory in shared folder 5) [guest] observe the bug
comment:4 by , 11 years ago
Description: | modified (diff) |
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This can be only reproduced with host kernel 3.8.0-8 (from ubuntu raring), 3.8.0-10 seems to work okay