can't validate on Linux

Matthew Pickering matthewtpickering at
Sun Jul 9 20:15:01 UTC 2017

geekosaur suggests on IRC that this might be related to a SELinux
security policy.

"what might be possible is that hLock uses fcntl locking, ghc-pkg
opens a database r/o if it can't open it r/w, and it tried to acquire
a write lock (which will fail with EBADF if the file descriptor is
only open for read). and there is an SElinux context prohibiting your
process opening the db for write"

On Sat, Jul 8, 2017 at 11:20 PM, Matthew Pickering
<matthewtpickering at> wrote:
> Hi Richard,
> I seem to be running into a similar error message when using "make
> install", did you ever find a solution to the problem?
> Matt
> On Mon, Mar 13, 2017 at 10:17 PM, Richard Eisenberg <rae at> wrote:
>>> On Mar 13, 2017, at 5:57 PM, Ben Gamari <ben at> wrote:
>>> Richard, this is on Linux, yes?
>> Yes, it is. But I have now noticed other aspects of some very strange behavior regarding the filesystem on my Linux server, so the problem may be unrelated to GHC. (Example of other problem: running the testsuite, with `make`, reveals tons of stderr mismatches. Some digging reveals that the .run.stderr files are sometimes truncated.)
>> So, thanks for the offers for help, but I’ve passed this problem up to my sysadmin.
>> Thanks,
>> Richard
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