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Revert "Restore parent mount namespace before executing a child process"

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This reverts commit a0ef21262f. This
doesn't work in 'nix run' and nix-shell because setns() fails in
multithreaded programs, and Boehm GC mark threads are uncancellable.

Fixes #2646.
This commit is contained in:
Eelco Dolstra 2019-02-05 10:49:19 +01:00
parent 92d08c02c8
commit 01d07b1e92
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GPG key ID: 8170B4726D7198DE
9 changed files with 4 additions and 52 deletions
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2
src/libstore/build.cc
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@ -2193,7 +2193,6 @@ void DerivationGoal::startBuilder()
userNamespaceSync.create();
options.allowVfork = false;
options.restoreMountNamespace = false;
Pid helper = startProcess([&]() {
@ -2260,7 +2259,6 @@ void DerivationGoal::startBuilder()
#endif
{
options.allowVfork = !buildUser && !drv->isBuiltin();
options.restoreMountNamespace = false;
pid = startProcess([&]() {
runChild();
}, options);