OTP-21.2.1

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+Patch Package:           OTP 21.2.1
+Git Tag:                 OTP-21.2.1
+Date:                    2018-12-21
+Trouble Report Id:       OTP-15485, OTP-15486, OTP-15487, OTP-15489
+Seq num:                 ERL-308, ERL-804
+System:                  OTP
+Release:                 21
+Application:             erts-10.2.1, ssl-9.1.1
+Predecessor:             OTP 21.2
+
+ Check out the git tag OTP-21.2.1, and build a full OTP system
+ including documentation. Apply one or more applications from this
+ build as patches to your installation using the 'otp_patch_apply'
+ tool. For information on install requirements, see descriptions for
+ each application version below.
+
+ ---------------------------------------------------------------------
+ --- erts-10.2.1 -----------------------------------------------------
+ ---------------------------------------------------------------------
+
+ Note! The erts-10.2.1 application can *not* be applied independently
+       of other applications on an arbitrary OTP 21 installation.
+
+       On a full OTP 21 installation, also the following runtime
+       dependencies have to be satisfied:
+       -- kernel-6.1 (first satisfied in OTP 21.1)
+       -- sasl-3.3 (first satisfied in OTP 21.2)
+
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15485    Application(s): erts
+
+               Fixed bug on big endian architectures when changing
+               file permissions or ownership with file:change_mode,
+               change_owner, change_group or write_file_info. Bug
+               exists since OTP-21.0.
+
+
+  OTP-15486    Application(s): erts
+               Related Id(s): PR-2061
+
+               Fixed bug in atomics with option {signed,false} when
+               returned values are (1 bsl 63) or larger. Could cause
+               heap corruption leading to VM crash or other unpleasant
+               symptoms. Bug exists since OTP-21.2 when module atomics
+               was introduced.
+
+
+  OTP-15487    Application(s): erts
+               Related Id(s): ERL-804
+
+               Fixed bug in operator band of two negative operands
+               causing erroneous result if the absolute value of one
+               of the operands have the lowest N*W bits as zero and
+               the other absolute value is not larger than N*W bits. N
+               is an integer of 1 or larger and W is 32 or 64
+               depending on word size.
+
+
+ Full runtime dependencies of erts-10.2.1: kernel-6.1, sasl-3.3,
+ stdlib-3.5
+
+
+ ---------------------------------------------------------------------
+ --- ssl-9.1.1 -------------------------------------------------------
+ ---------------------------------------------------------------------
+
+ The ssl-9.1.1 application can be applied independently of other
+ applications on a full OTP 21 installation.
+
+ --- Fixed Bugs and Malfunctions ---
+
+  OTP-15489    Application(s): ssl
+               Related Id(s): ERL-308
+
+               Fixed renegotiation bug. Client did not handle server
+               initiated renegotiation correctly after rewrite to two
+               connection processes, due to ERL-622 commit
+               d87ac1c55188f5ba5cdf72384125d94d42118c18. This could
+               manifest it self as a " bad_record_mac" alert.
+
+               Also included are some optimizations
+
+
+ Full runtime dependencies of ssl-9.1.1: crypto-4.2, erts-10.0,
+ inets-5.10.7, kernel-6.0, public_key-1.5, stdlib-3.5
+
+
+ ---------------------------------------------------------------------
+ ---------------------------------------------------------------------
+ ---------------------------------------------------------------------
+