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Fix coredump after Client Unpause command when threaded I/O is enabled (#9041) 

Fix crash when using io-threads-do-reads and issuing CLIENT PAUSE and
CLIENT UNPAUSE.
This issue was introduced in redis 6.2 together with the FAILOVER command.
This commit is contained in:
yvette903 2021-06-15 14:21:52 +08:00 committed by GitHub
parent 7900b48bc7
commit 096c5fd5d2
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 1 deletions
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3
src/networking.c
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@ -3664,7 +3664,7 @@ int postponeClientRead(client *c) {
if (server.io_threads_active &&
server.io_threads_do_reads &&
!ProcessingEventsWhileBlocked &&
!(c->flags & (CLIENT_MASTER|CLIENT_SLAVE|CLIENT_PENDING_READ)))
!(c->flags & (CLIENT_MASTER|CLIENT_SLAVE|CLIENT_PENDING_READ|CLIENT_BLOCKED)))
{
c->flags |= CLIENT_PENDING_READ;
listAddNodeHead(server.clients_pending_read,c);
@ -3728,6 +3728,7 @@ int handleClientsWithPendingReadsUsingThreads(void) {
c->flags &= ~CLIENT_PENDING_READ;
listDelNode(server.clients_pending_read,ln);
serverAssert(!(c->flags & CLIENT_BLOCKED));
if (processPendingCommandsAndResetClient(c) == C_ERR) {
/* If the client is no longer valid, we avoid
* processing the client later. So we just go