Blame SOURCES/db-5.3.28-mmap-high-cpu-usage.patch
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Author: Filip Januš <fjanus@redhat.com>
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Date: 6 Sep 2021
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Related: https://bugzilla.redhat.com/show_bug.cgi?id=1992402
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Changing the size to max if set in the environment.
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Do it also every-time on aarch64 as this issue caused rpm to hang staring 8.4.0
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(likely influenced by changes in other components) and rpm is not able to set
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the environment this way.
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diff -ur db-5.3.28/src/os/os_map.c db-patched/src/os/os_map.c
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--- db-5.3.28/src/os/os_map.c 2013-09-09 17:35:09.000000000 +0200
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+++ db-patched/src/os/os_map.c 2021-09-08 21:45:16.914146219 +0200
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@@ -213,7 +213,14 @@
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if (rp->max < rp->size)
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rp->max = rp->size;
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if (ret == 0 && F_ISSET(infop, REGION_CREATE)) {
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- if (F_ISSET(dbenv, DB_ENV_REGION_INIT))
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+#ifdef HAVE_MLOCK
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+ if (F_ISSET(env, ENV_LOCKDOWN))
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+ rp->size = rp->max;
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+#endif
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+#if defined(__aarch64__)
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+ rp->size = rp->max;
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+#endif
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+ if (F_ISSET(dbenv, DB_ENV_REGION_INIT))
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ret = __db_file_write(env, infop->fhp,
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rp->size / MEGABYTE, rp->size % MEGABYTE, 0x00);
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else
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