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Bad timing could lead to hanging transactions after a mnesia down from a
node with sticky locks.
Excellent bug report from janchochol
Situation:
* node A and B have copies of table T
* node A ows sticky of table T
* node A goes down (e.g. crash)
* node B tries to perform transactional operation on table T
(e.g. mnesia:select)
In this situation there is possibility that first (and maybe other)
transaction on node B will hang indefinitely.
This is caused by race condition, when transaction process send lock
request operation to node A and waits for reply. When node A is down
it will never send reply, so process on node B will be stuck
forever.
Reason is that message sent to mnesia_locker gen_server from
mnesia_locker:mnesia_down can be received after mnesia_locker gen_server
already replies to transaction processes with {switch, N, Req} and
node N is down.
Monitoring remote process when sending request to other node should
be safe solution.
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Also remove import statement as it makes code less intuitive
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* rickard/supercarrier-fix/OTP-11149:
Fix observer retrieval of alloc info
Fix documentation of the +MMsco switch
Replace the +MMscmgc switch with +MMscrfsd
Add switch for disabling sys_alloc carriers
Add support for locking mappings to physical memory
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Before running a test case named testcase/1, common_test will call
testcase/0 (the info function). Exceptions and illegal return values
would be silently ignored. In a planned update to common_test, errors
will instead cause the test case to fail.
The test case otp_8949_a/1 has a helper function called otp_8949_a/0.
Rename it to do_otp_8949_a/0.
While at it, also fix a copy and paste bug in the list of test cases.
otp_8949_a was run twice; otp_8949_b was never run.
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crypto.c:2748:9: warning: variable 'bn_prime' is used uninitialized whenever '||' condition is true [-Wsometimes-uninitialized]
if (!get_bn_from_bin(env, argv[0], &bn_verifier)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
crypto.c:2758:6: note: uninitialized use occurs here
if (bn_prime) BN_free(bn_prime);
^~~~~~~~
crypto.c:2748:9: note: remove the '||' if its condition is always false
if (!get_bn_from_bin(env, argv[0], &bn_verifier)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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When the netconf server did not respond to the close-session request,
the call to ct_netconfc:close_session/2 would hang forever waiting for
the netconf client to terminate. This has been corrected. The client
will now always terminate (and take down the connection) if the
close-session request times out.
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* bjorn/asn1/fix-union-bug/OTP-11411:
Fix complicated union of INTEGER constraints
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Also correct failing test cases and find and fix remaining bugs.
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bmk/snmp/snmp425_integration
Conflicts:
lib/snmp/src/app/snmp.erl
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Changed the default value for the Audit Trail Log
conversion to true. Also some cleanup.
OTP-11396
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* metadave/dp_typo/OTP-11475:
fixed typo
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* siri/erl_prim_loader/normalize-and-backslash/OTP-11170:
Update preloaded
Fix bug with backslash in erl_prim_loader:normalize/1
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* fredrik/fix_tests_ssl_not_present/OTP-11474:
[eldap, inets]: fix testcases when ssl not is present
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* mhssler/add-os-unsetenv/OTP-11446:
erts: remove ?line macro in testcases
Update primary bootstrap
Add os:unsetenv/1
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maint
* potatosalad/public_key_incorrect_emailaddress/OTP-11470:
public_key_SUITE: Rename id-at-countryName to id-emailAddress
public_key: Workaround for incorrectly encoded utf8 emailAddress
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This function normalizes a path:
* convert atoms to strings
* flatten strings
* convert backslash to a forward slash
The bugfix is to only convert backslashes to forward slashes on
windows and not on any other platforms.
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* ia/ssh/one-connection-process/OTP-11363:
ssh: Logging fun and document enhancement
ssh: Add CLI test case
ssh: Quicker shutdown of an ssh dameon
ssh: Add option to disallow CLI
ssh: Simplify handling of connection attributes (e.i. user and sockname)
ssh: Make inet option configurable and remove ipv6_disabled option
ssh: Eliminate test case failure due to timing issues in test case code
ssh: Enhance error handling
ssh: Merge connection_manager and connection_handler processes
ssh: Remove use of process dictionary
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