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1090-erts-Fix-SEGV-during-crashdump-of-emptied-...
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File 1090-erts-Fix-SEGV-during-crashdump-of-emptied-ETS-table.patch of Package erlang
From e33028ab30041513132866f8c9d3c65464d853ee Mon Sep 17 00:00:00 2001 From: Sverker Eriksson <sverker@erlang.org> Date: Fri, 21 Oct 2022 19:53:42 +0200 Subject: [PATCH] erts: Fix SEGV during crashdump of emptied ETS table during ets:delete_all_objects. --- erts/emulator/beam/erl_db_hash.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/erts/emulator/beam/erl_db_hash.c b/erts/emulator/beam/erl_db_hash.c index aa04a6a03c..fce1b8dd19 100644 --- a/erts/emulator/beam/erl_db_hash.c +++ b/erts/emulator/beam/erl_db_hash.c @@ -4008,6 +4008,12 @@ void db_calc_stats_hash(DbTableHash* tb, DbHashStats* stats) int ix; int len; + if (tb->nslots < NACTIVE(tb)) { + ASSERT(ERTS_IS_CRASH_DUMPING); + sys_memzero(stats, sizeof(*stats)); + return; + } + stats->min_chain_len = INT_MAX; stats->max_chain_len = 0; ix = 0; -- 2.35.3
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