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authorHerbert Xu <herbert@gondor.apana.org.au>2020-06-02 23:46:48 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2020-07-08 17:05:35 +1000
commit7249493949314557a5d22f52315713e5f9013e15 (patch)
tree38c20b531ce5cf47de35bff90baad79078540a82 /COPYING
parentRelease 0.5.11. (diff)
downloaddash-7249493949314557a5d22f52315713e5f9013e15.tar.gz
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jobs: Fix waitcmd busy loop
We need to clear gotsigchld in waitproc because it is used as
a loop conditional for the waitcmd case.  Without it waitcmd
may busy loop after a SIGCHLD.

This patch also changes gotsigchld into a volatile sig_atomic_t
to prevent compilers from optimising its accesses away.

Fixes: 6c691b3e5099 ("jobs: Only clear gotsigchld when waiting...")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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