On Mon, May 27, 2024 at 08:07:40PM +0100, Mark Brown wrote: > On Sat, May 11, 2024 at 07:14:39PM +0200, Mickaël Salaün wrote: > > Fix a race condition when running several FIXTURE_TEARDOWN() managing > > the same resource. This fixes a race condition in the Landlock file > > system tests when creating or unmounting the same directory. > > > Using clone3() with CLONE_VFORK guarantees that the child and grandchild > > test processes are sequentially scheduled. This is implemented with a > > new clone3_vfork() helper replacing the fork() call. > > This is now in mainline and appears to be causing several tests (at > least the ptrace vmaccess global_attach test on arm64, possibly also > some of the epoll tests) that previously were timed out by the harness > to to hang instead. A bisect seems to point at this patch in > particular, there was a bunch of discussion of the fallout of these > patches but I'm afraid I lost track of it, is there something in flight > for this? -next is affected as well from the looks of it. FWIW I'm still seeing this on -rc2...
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