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| author | Max Romanov <max.romanov@nginx.com> | 2020-02-03 11:20:59 +0300 |
|---|---|---|
| committer | Max Romanov <max.romanov@nginx.com> | 2020-02-03 11:20:59 +0300 |
| commit | 7ea9ebc55a22fec53bb095975e639d4fbfebb575 (patch) | |
| tree | 15925f0f0df88ea50955213ccee3b972e0a5639f /src/nxt_unit.c | |
| parent | 8c0f2cebf5eba555d104c42b556e54635f5d0890 (diff) | |
| download | unit-7ea9ebc55a22fec53bb095975e639d4fbfebb575.tar.gz unit-7ea9ebc55a22fec53bb095975e639d4fbfebb575.tar.bz2 | |
Fixed req_app_link reference counting on cancellation.
Re-scheduled req_app_link structures should have use_count exactly equal
to the number of references from the application and port list. However,
there's one extra usage decrement that occurs after the req_app_link is
created because the use_count is initialised as 1.
This patch removes all excess instances of the usage decrement that caused
preliminary req_app_link release and router process crash.
To reproduce the issue need to cause request rescheduling between 2 app
processes.
This issue was introduced in 61e9f23a566d.
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