diff options
| author | Tzu-Chiao Yeh <su3g4284zo6y7@gmail.com> | 2020-08-24 22:04:17 +0800 |
|---|---|---|
| committer | Emmanuel Odeke <emmanuel@orijtech.com> | 2020-10-28 16:55:17 +0000 |
| commit | d4c1ad882973e407ff85b977f4ce5b9435451190 (patch) | |
| tree | f3681fb1fdb68a84f0ca3e3567f69055a61da0bb /src/os/executable_sysctl.go | |
| parent | 421d4e72de802ed65cb38317660654771cfb13e9 (diff) | |
| download | go-d4c1ad882973e407ff85b977f4ce5b9435451190.tar.xz | |
database/sql: fix tx stmt deadlock when rollback
Tx acquires tx.closemu W-lock and then acquires stmt.closemu.W-lock
to fully close the transaction and associated prepared statement.
Stmt query and execution run in reverse ways - acquires
stmt.closemu.R-lock and then acquires tx.closemu.R-lock to grab tx
connection, which may cause deadlock.
Prevent the lock is held around tx.closePrepared to ensure no
deadlock happens.
Fixes #40985
Change-Id: If53909822b87bce11861a6e3035ecb9476d2cd17
Reviewed-on: https://go-review.googlesource.com/c/go/+/250178
Run-TryBot: Emmanuel Odeke <emmanuel@orijtech.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Daniel Theophanes <kardianos@gmail.com>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
Diffstat (limited to 'src/os/executable_sysctl.go')
0 files changed, 0 insertions, 0 deletions