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Add sandbox-dev-shm-size option

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Fixes #1069.
This commit is contained in:
Eelco Dolstra 2016-09-21 16:53:41 +02:00
parent 4546be1b3e
commit 818ab58cc6
2 changed files with 15 additions and 1 deletions
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3
src/libstore/build.cc
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@ -2346,7 +2346,8 @@ void DerivationGoal::runChild()
/* Mount a new tmpfs on /dev/shm to ensure that whatever
the builder puts in /dev/shm is cleaned up automatically. */
if (pathExists("/dev/shm") && mount("none", (chrootRootDir + "/dev/shm").c_str(), "tmpfs", 0, 0) == -1)
if (pathExists("/dev/shm") && mount("none", (chrootRootDir + "/dev/shm").c_str(), "tmpfs", 0,
fmt("size=%s", settings.get("sandbox-dev-shm-size", std::string("50%"))).c_str()) == -1)
throw SysError("mounting /dev/shm");
/* Mount a new devpts on /dev/pts. Note that this