#11844: Race condition in building MPIR/yasm
------------------------+---------------------------------------------------
Reporter: vbraun | Owner: tbd
Type: defect | Status: needs_review
Priority: critical | Milestone: sage-4.7.2
Component: packages | Keywords:
Work_issues: | Upstream: Fixed upstream, but not in a stable
release.
Reviewer: | Author:
Merged: | Dependencies:
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Comment(by leif):
Replying to [comment:8 vbraun]:
> > Note that the yasm guys do not check whether the call to tmpfile()
succeeded
>
> In the unlikely case that `tmpfile()` can't find a unique file name,
it'll return NULL
{{{
ERRORS
EACCES Search permission denied for directory in file's path
prefix.
EEXIST Unable to generate a unique filename.
EINTR The call was interrupted by a signal.
EMFILE Too many file descriptors in use by the process.
ENFILE Too many files open in the system.
ENOSPC There was no room in the directory to add the new filename.
EROFS Read-only file system.
}}}
So there are a couple of reasons why `tmpfile()`could fail (and these may
be temporary, i.e., later calls at least from other processes may well
succeed).
Letting `re2c` segfault is of course the pythonic way... ;-)
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/11844#comment:9>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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