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authorStefan Metzmacher <metze@samba.org>2010-04-01 16:23:06 +0200
committerStefan Metzmacher <metze@samba.org>2010-04-01 17:25:11 +0200
commit73577205cf81644e7fe853eaf3e6459f7f443096 (patch)
tree94f71502024f44977177f7b83cb192f2bbe2de11 /source3/winbindd/winbindd_ccache_access.c
parent3475c61179b87fa5c48ffe24c2793137ad04c318 (diff)
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s3:winbindd: fix problems with SIGCHLD handling (bug #7317)
The main problem is that we call CatchChild() within the parent winbindd, which overwrites the signal handler that was registered by winbindd_setup_sig_chld_handler(). That means winbindd_sig_chld_handler() and winbind_child_died() are never triggered when a winbindd domain child dies. As a result will get "broken pipe" for all requests to that domain. To reduce the risk of similar bugs in future we call CatchChild() in winbindd_reinit_after_fork() now. We also use a full winbindd_reinit_after_fork() in the cache validation child now instead instead of just resetting the SIGCHLD handler by hand. This will also fix possible tdb problems on systems without pread/pwrite and disabled mmap as we now correctly reopen the tdb handle for the child. metze
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