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From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Vladislav Shpilevoy <v.shpilevoy@tarantool.org>
Cc: tml <tarantool-patches@dev.tarantool.org>
Subject: Re: [Tarantool-patches] [PATCH v2 4/4] qsync: don't send negative timeouts into fiber_cond_wait_timeout
Date: Fri, 17 Jul 2020 23:33:36 +0300	[thread overview]
Message-ID: <20200717203336.GB2613@grain> (raw)
In-Reply-To: <a51bd1fd-aacd-7b1c-4001-f4acb4ea2183@tarantool.org>

On Fri, Jul 17, 2020 at 10:03:49PM +0200, Vladislav Shpilevoy wrote:
> > 
> > Am I missing something obvious here?
> 
> I still don't see how to trigger this assert. Please, show a code sample with
> error injection, if you think that will help. I explicitly added line
> 'timeout = -1;' and all worked fine.
>
---
[cyrill@grain tarantool.git] git diff
diff --git a/src/box/txn_limbo.c b/src/box/txn_limbo.c
index 0924952b7..50e6326b3 100644
--- a/src/box/txn_limbo.c
+++ b/src/box/txn_limbo.c
@@ -175,8 +175,9 @@ txn_limbo_wait_complete(struct txn_limbo *limbo, struct txn_limbo_entry *entry)
        while (true) {
                double deadline = start_time + replication_synchro_timeout;
                double timeout = deadline - fiber_clock();
-               if (timeout < 0)
-                       goto do_rollback;
+               timeout = -1;
+               //if (timeout < 0)
+               //      goto do_rollback;
                bool cancellable = fiber_set_cancellable(false);
                int rc = fiber_cond_wait_timeout(&limbo->wait_cond, timeout);
                fiber_set_cancellable(cancellable);
@@ -512,8 +513,9 @@ txn_limbo_wait_confirm(struct txn_limbo *limbo)
        while (true) {
                double deadline = start_time + replication_synchro_timeout;
                double timeout = deadline - fiber_clock();
-               if (timeout < 0)
-                       goto timed_out;
+               timeout = -1;
+               //if (timeout < 0)
+               //      goto timed_out;
                bool cancellable = fiber_set_cancellable(false);
                int rc = fiber_cond_wait_timeout(&limbo->wait_cond, timeout);
                fiber_set_cancellable(cancellable);
---
[cyrill@grain test] ./test-run.py replication/qsync_basic.test.lua 
...
[001] [Instance "master" killed by signal: 6 (SIGABRT)]
[001] Found assertion fail in the results file [/home/cyrill/d1/projects/tarantool/tarantool.git/test/var/001_replication/master.log]:

You did the same thing? Note that it requires debug build. 

  reply	other threads:[~2020-07-17 20:33 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-14 14:44 [Tarantool-patches] [PATCH 0/4] qsync: continue cooking the code Cyrill Gorcunov
2020-07-14 14:44 ` [Tarantool-patches] [PATCH 1/4] qsync: add missing functions descriptions Cyrill Gorcunov
2020-07-14 14:44 ` [Tarantool-patches] [PATCH 2/4] qsync: drop txn_limbo_confirm_timeout Cyrill Gorcunov
2020-07-14 14:44 ` [Tarantool-patches] [PATCH 3/4] qsync: txn_limbo_wait_complete -- fix type conversion Cyrill Gorcunov
2020-07-14 14:44 ` [Tarantool-patches] [PATCH 4/4] qsync: don't send negative timeouts into fiber_cond_wait_timeout Cyrill Gorcunov
2020-07-14 14:53   ` [Tarantool-patches] [PATCH v2 " Cyrill Gorcunov
2020-07-16 22:45     ` Vladislav Shpilevoy
2020-07-17  7:25       ` Cyrill Gorcunov
2020-07-17 20:03         ` Vladislav Shpilevoy
2020-07-17 20:33           ` Cyrill Gorcunov [this message]
2020-07-17 20:43             ` Cyrill Gorcunov
2020-07-20 19:28 ` [Tarantool-patches] [PATCH 0/4] qsync: continue cooking the code Vladislav Shpilevoy

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