mirror of
https://github.com/openresty/openresty
synced 2024-11-14 08:45:50 +01:00
7e1cf985cf
The core dump may occur during initialization
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x0000000000441711 in ngx_event_process_init (cycle=0x1e93cc0) at src/event/ngx_event.c:807
801 i = cycle->connection_n;
802 next = NULL;
803
804 do {
805 i--;
806
807 c[i].data = next;
#1 0x000000000044abb9 in ngx_worker_process_init (cycle=cycle@entry=0x1e93cc0, worker=worker@entry=-1) at src/os/unix/ngx_process_cycle.c:968
74 lines
3.0 KiB
C
74 lines
3.0 KiB
C
diff --git a/src/core/nginx.c b/src/core/nginx.c
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index 269ff84..48329bd 100644
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--- a/src/core/nginx.c
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+++ b/src/core/nginx.c
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@@ -1062,6 +1062,7 @@ ngx_core_module_create_conf(ngx_cycle_t *cycle)
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ccf->daemon = NGX_CONF_UNSET;
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ccf->master = NGX_CONF_UNSET;
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ccf->privileged_agent = NGX_CONF_UNSET;
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+ ccf->privileged_agent_connections = NGX_CONF_UNSET_UINT;
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ccf->timer_resolution = NGX_CONF_UNSET_MSEC;
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ccf->shutdown_timeout = NGX_CONF_UNSET_MSEC;
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@@ -1092,6 +1093,7 @@ ngx_core_module_init_conf(ngx_cycle_t *cycle, void *conf)
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ngx_conf_init_value(ccf->daemon, 1);
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ngx_conf_init_value(ccf->master, 1);
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ngx_conf_init_value(ccf->privileged_agent, 0);
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+ ngx_conf_init_uint_value(ccf->privileged_agent_connections, 512);
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ngx_conf_init_msec_value(ccf->timer_resolution, 0);
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ngx_conf_init_msec_value(ccf->shutdown_timeout, 0);
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diff --git a/src/core/ngx_cycle.h b/src/core/ngx_cycle.h
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index 6a9583e..4469390 100644
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--- a/src/core/ngx_cycle.h
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+++ b/src/core/ngx_cycle.h
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@@ -93,6 +93,7 @@ typedef struct {
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ngx_flag_t daemon;
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ngx_flag_t master;
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ngx_flag_t privileged_agent;
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+ ngx_uint_t privileged_agent_connections;
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ngx_msec_t timer_resolution;
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ngx_msec_t shutdown_timeout;
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diff --git a/src/os/unix/ngx_process_cycle.c b/src/os/unix/ngx_process_cycle.c
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index df25f9d..bd259c1 100644
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--- a/src/os/unix/ngx_process_cycle.c
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+++ b/src/os/unix/ngx_process_cycle.c
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@@ -1179,6 +1179,7 @@ static void
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ngx_privileged_agent_process_cycle(ngx_cycle_t *cycle, void *data)
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{
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char *name = data;
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+ ngx_core_conf_t *ccf = (ngx_core_conf_t *) ngx_get_conf(cycle->conf_ctx, ngx_core_module);
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/*
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* Set correct process type since closing listening Unix domain socket
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@@ -1190,7 +1191,7 @@ ngx_privileged_agent_process_cycle(ngx_cycle_t *cycle, void *data)
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ngx_close_listening_sockets(cycle);
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/* Set a moderate number of connections for a helper process. */
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- cycle->connection_n = 512;
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+ cycle->connection_n = ccf->privileged_agent_connections;
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ngx_worker_process_init(cycle, -1);
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diff --git a/src/os/unix/ngx_process_cycle.c b/src/os/unix/ngx_process_cycle.c
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index df25f9d..bd259c1 100644
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--- a/src/os/unix/ngx_process_cycle.c
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+++ b/src/os/unix/ngx_process_cycle.c
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@@ -442,6 +442,15 @@
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return;
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}
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+ /* 0 is an illegal value and may result in a core dump later */
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+ if (ccf->privileged_agent_connections == 0) {
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+ ngx_log_error(NGX_LOG_ALERT, cycle->log, 0,
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+ "%ui worker_connection is not enough, "
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+ "privileged agent process cannot be spawned",
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+ ccf->privileged_agent_connections);
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+ return;
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+ }
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+
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ngx_spawn_process(cycle, ngx_privileged_agent_process_cycle,
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"privileged agent process", "privileged agent process",
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respawn ? NGX_PROCESS_JUST_RESPAWN : NGX_PROCESS_RESPAWN);
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