Fix rare core dump in BackendIdGetTransactionIds().
BackendIdGetTransactionIds() neglected the possibility that the PROC
pointer in a ProcState array entry is null. In current usage, this could
only crash if the other backend had exited since pgstat_read_current_status
saw it as active, which is a pretty narrow window. But it's reachable in
the field, per bug #12918 from Vladimir Borodin.
Back-patch to 9.4 where the faulty code was introduced.
Branch
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master
Details
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http://git.postgresql.org/pg/commitdiff/701dcc983eb4d08dd36bb3a0ddba255819797760
Modified Files
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src/backend/storage/ipc/sinvaladt.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
