diff --git a/.hgtags b/.hgtags
index da0a246..dc8b8d8 100644
--- a/.hgtags
+++ b/.hgtags
@@ -454,3 +454,4 @@
 a7b46539f507e6c64efa0efda69ad60b6f4ffbce release-1.19.2
 3cbc2602325f0ac08917a4397d76f5155c34b7b1 release-1.19.3
 dc0cc425fa63a80315f6efb68697cadb6626cdf2 release-1.19.4
+8e5b068f761cd512d10c9671fbde0b568c1fd08b release-1.19.5
diff --git a/BUILD b/BUILD
index b93a856..dd27c76 100644
--- a/BUILD
+++ b/BUILD
@@ -1536,5 +1536,5 @@
     preinst = "@nginx_pkgoss//:debian_preinst",
     prerm = "@nginx_pkgoss//:debian_prerm",
     section = "httpd",
-    version = "1.19.4",
+    version = "1.19.5",
 )
diff --git a/auto/configure b/auto/configure
index 3284956..6a3b67f 100755
--- a/auto/configure
+++ b/auto/configure
@@ -90,6 +90,10 @@
 have=NGX_LOCK_PATH value="\"$NGX_LOCK_PATH\"" . $NGX_AUTO/define
 have=NGX_ERROR_LOG_PATH value="\"$NGX_ERROR_LOG_PATH\"" . $NGX_AUTO/define
 
+if [ ".$NGX_ERROR_LOG_PATH" = "." ]; then
+    have=NGX_ERROR_LOG_STDERR . $NGX_AUTO/have
+fi
+
 have=NGX_HTTP_LOG_PATH value="\"$NGX_HTTP_LOG_PATH\"" . $NGX_AUTO/define
 have=NGX_HTTP_CLIENT_TEMP_PATH value="\"$NGX_HTTP_CLIENT_TEMP_PATH\""
 . $NGX_AUTO/define
diff --git a/auto/make b/auto/make
index 34c40cd..ef7c9f6 100644
--- a/auto/make
+++ b/auto/make
@@ -313,7 +313,7 @@
 END
 
         fi
-     done
+    done
 
 fi
 
@@ -343,7 +343,7 @@
 	$ngx_cc$ngx_tab$ngx_objout$ngx_obj$ngx_tab$ngx_src$NGX_AUX
 
 END
-     done
+    done
 
 fi
 
@@ -373,7 +373,7 @@
 	$ngx_cc$ngx_tab$ngx_objout$ngx_obj$ngx_tab$ngx_src$NGX_AUX
 
 END
-     done
+    done
 
 fi
 
@@ -399,7 +399,7 @@
 	$ngx_cc$ngx_tab$ngx_objout$ngx_obj$ngx_tab$ngx_src$NGX_AUX
 
 END
-     done
+    done
 
 fi
 
@@ -431,7 +431,7 @@
 	$ngx_cc$ngx_tab$ngx_objout$ngx_obj$ngx_tab$ngx_src$NGX_AUX
 
 END
-     done
+    done
 
 fi
 
@@ -502,6 +502,7 @@
 for ngx_module in $DYNAMIC_MODULES
 do
     eval ngx_module_srcs="\$${ngx_module}_SRCS"
+    eval ngx_module_shrd="\$${ngx_module}_SHRD"
     eval eval ngx_module_libs="\\\"\$${ngx_module}_LIBS\\\""
 
     eval ngx_module_modules="\$${ngx_module}_MODULES"
@@ -567,7 +568,7 @@
         | sed -e "s/\(.*\.\)c/\1$ngx_objext/"`
 
     ngx_module_objs=
-    for ngx_src in $ngx_module_srcs
+    for ngx_src in $ngx_module_srcs $ngx_module_shrd
     do
         case "$ngx_src" in
             src/*)
diff --git a/auto/module b/auto/module
index a2b578d..3857d04 100644
--- a/auto/module
+++ b/auto/module
@@ -17,7 +17,6 @@
     done
 
     DYNAMIC_MODULES="$DYNAMIC_MODULES $ngx_module"
-    eval ${ngx_module}_SRCS=\"$ngx_module_srcs\"
 
     eval ${ngx_module}_MODULES=\"$ngx_module_name\"
 
@@ -31,6 +30,30 @@
         eval ${ngx_module}_ORDER=\"$ngx_module_order\"
     fi
 
+    srcs=
+    shrd=
+    for src in $ngx_module_srcs
+    do
+        found=no
+        for old in $DYNAMIC_MODULES_SRCS
+        do
+            if [ $src = $old ]; then
+                found=yes
+                break
+            fi
+        done
+
+        if [ $found = no ]; then
+            srcs="$srcs $src"
+        else
+            shrd="$shrd $src"
+        fi
+    done
+    eval ${ngx_module}_SRCS=\"$srcs\"
+    eval ${ngx_module}_SHRD=\"$shrd\"
+
+    DYNAMIC_MODULES_SRCS="$DYNAMIC_MODULES_SRCS $srcs"
+
     if test -n "$ngx_module_incs"; then
         CORE_INCS="$CORE_INCS $ngx_module_incs"
     fi
@@ -107,7 +130,24 @@
     eval ${ngx_module_type}_MODULES=\"\$${ngx_module_type}_MODULES \
                                       $ngx_module_name\"
 
-    NGX_ADDON_SRCS="$NGX_ADDON_SRCS $ngx_module_srcs"
+    srcs=
+    for src in $ngx_module_srcs
+    do
+        found=no
+        for old in $NGX_ADDON_SRCS
+        do
+            if [ $src = $old ]; then
+                found=yes
+                break
+            fi
+        done
+
+        if [ $found = no ]; then
+            srcs="$srcs $src"
+        fi
+    done
+
+    NGX_ADDON_SRCS="$NGX_ADDON_SRCS $srcs"
 
     if test -n "$ngx_module_incs"; then
         eval ${ngx_var}_INCS=\"\$${ngx_var}_INCS $ngx_module_incs\"
diff --git a/auto/options b/auto/options
index 2b80e64..c97398c 100644
--- a/auto/options
+++ b/auto/options
@@ -132,8 +132,10 @@
 STREAM_SSL_PREREAD=NO
 
 DYNAMIC_MODULES=
+DYNAMIC_MODULES_SRCS=
 
 NGX_ADDONS=
+NGX_ADDON_SRCS=
 NGX_ADDON_DEPS=
 DYNAMIC_ADDONS=
 
diff --git a/build.bzl b/build.bzl
index 4fa5f96..7970e7f 100644
--- a/build.bzl
+++ b/build.bzl
@@ -673,9 +673,9 @@
         name = "nginx_pkgoss",
         build_file_content = _PKGOSS_BUILD_FILE.format(nginx = nginx) +
                              _PKGOSS_BUILD_FILE_TAIL,
-        commit = "0d4cbab8a8ee0c010bface3e0b16945ffbdc0658",  # nginx-1.19.4
+        commit = "2d2699f5a66808ac119f4509ceccd90d44ef2dfb",  # nginx-1.19.5
         remote = "https://nginx.googlesource.com/nginx-pkgoss",
-        shallow_since = "1603812347 +0300",
+        shallow_since = "1606224304 +0300",
     )
 
 def nginx_repositories_zlib(bind):
diff --git a/docs/man/nginx.8 b/docs/man/nginx.8
index 573d935..10db3e6 100644
--- a/docs/man/nginx.8
+++ b/docs/man/nginx.8
@@ -25,7 +25,7 @@
 .\" SUCH DAMAGE.
 .\"
 .\"
-.Dd December 5, 2019
+.Dd November 5, 2020
 .Dt NGINX 8
 .Os
 .Sh NAME
@@ -35,6 +35,7 @@
 .Nm
 .Op Fl ?hqTtVv
 .Op Fl c Ar file
+.Op Fl e Ar file
 .Op Fl g Ar directives
 .Op Fl p Ar prefix
 .Op Fl s Ar signal
@@ -54,6 +55,12 @@
 .It Fl c Ar file
 Use an alternative configuration
 .Ar file .
+.It Fl e Ar file
+Use an alternative error log
+.Ar file .
+Special value
+.Cm stderr
+indicates that the standard error output should be used.
 .It Fl g Ar directives
 Set global configuration directives.
 See
@@ -198,10 +205,10 @@
 started in 2002, with the first public release on October 4, 2004.
 .Sh AUTHORS
 .An -nosplit
-.An Igor Sysoev Aq igor@sysoev.ru .
+.An Igor Sysoev Aq Mt igor@sysoev.ru .
 .Pp
 This manual page was originally written by
-.An Sergey A. Osokin Aq osa@FreeBSD.org.ru
+.An Sergey A. Osokin Aq Mt osa@FreeBSD.org.ru
 as a result of compiling many
 .Nm
 documents from all over the world.
diff --git a/docs/xml/nginx/changes.xml b/docs/xml/nginx/changes.xml
index a7417f5..d1bd021 100644
--- a/docs/xml/nginx/changes.xml
+++ b/docs/xml/nginx/changes.xml
@@ -5,6 +5,62 @@
 <change_log title="nginx">
 
 
+<changes ver="1.19.5" date="2020-11-24">
+
+<change type="feature">
+<para lang="ru">
+ключ -e.
+</para>
+<para lang="en">
+the -e switch.
+</para>
+</change>
+
+<change type="feature">
+<para lang="ru">
+при сборке дополнительных модулей
+теперь можно указывать одни и те же исходные файлы в разных модулях.
+</para>
+<para lang="en">
+the same source files can now be specified in different modules
+while building addon modules.
+</para>
+</change>
+
+<change type="bugfix">
+<para lang="ru">
+SSL shutdown не работал
+при закрытии соединений с ожиданием дополнительных данных (lingering close).
+</para>
+<para lang="en">
+SSL shutdown did not work
+when lingering close was used.
+</para>
+</change>
+
+<change type="bugfix">
+<para lang="ru">
+при работе с gRPC-бэкендами
+могли возникать ошибки "upstream sent frame for closed stream".
+</para>
+<para lang="en">
+"upstream sent frame for closed stream" errors might occur
+when working with gRPC backends.
+</para>
+</change>
+
+<change type="bugfix">
+<para lang="ru">
+во внутреннем API для обработки тела запроса.
+</para>
+<para lang="en">
+in request body filters internal API.
+</para>
+</change>
+
+</changes>
+
+
 <changes ver="1.19.4" date="2020-10-27">
 
 <change type="feature">
diff --git a/src/core/nginx.c b/src/core/nginx.c
index 0730440..5977d33 100644
--- a/src/core/nginx.c
+++ b/src/core/nginx.c
@@ -187,6 +187,7 @@
 static ngx_uint_t   ngx_show_version;
 static ngx_uint_t   ngx_show_configure;
 static u_char      *ngx_prefix;
+static u_char      *ngx_error_log;
 static u_char      *ngx_conf_file;
 static u_char      *ngx_conf_params;
 static char        *ngx_signal;
@@ -238,7 +239,7 @@
     ngx_pid = ngx_getpid();
     ngx_parent = ngx_getppid();
 
-    log = ngx_log_init(ngx_prefix);
+    log = ngx_log_init(ngx_prefix, ngx_error_log);
     if (log == NULL) {
         return 1;
     }
@@ -401,9 +402,9 @@
 
     if (ngx_show_help) {
         ngx_write_stderr(
-            "Usage: nginx [-?hvVtTq] [-s signal] [-c filename] "
-                         "[-p prefix] [-g directives]" NGX_LINEFEED
-                         NGX_LINEFEED
+            "Usage: nginx [-?hvVtTq] [-s signal] [-p prefix]" NGX_LINEFEED
+            "             [-e filename] [-c filename] [-g directives]"
+                          NGX_LINEFEED NGX_LINEFEED
             "Options:" NGX_LINEFEED
             "  -?,-h         : this help" NGX_LINEFEED
             "  -v            : show version and exit" NGX_LINEFEED
@@ -422,6 +423,12 @@
 #else
             "  -p prefix     : set prefix path (default: NONE)" NGX_LINEFEED
 #endif
+            "  -e filename   : set error log file (default: "
+#ifdef NGX_ERROR_LOG_STDERR
+                               "stderr)" NGX_LINEFEED
+#else
+                               NGX_ERROR_LOG_PATH ")" NGX_LINEFEED
+#endif
             "  -c filename   : set configuration file (default: " NGX_CONF_PATH
                                ")" NGX_LINEFEED
             "  -g directives : set global directives out of configuration "
@@ -816,6 +823,24 @@
                 ngx_log_stderr(0, "option \"-p\" requires directory name");
                 return NGX_ERROR;
 
+            case 'e':
+                if (*p) {
+                    ngx_error_log = p;
+
+                } else if (argv[++i]) {
+                    ngx_error_log = (u_char *) argv[i];
+
+                } else {
+                    ngx_log_stderr(0, "option \"-e\" requires file name");
+                    return NGX_ERROR;
+                }
+
+                if (ngx_strcmp(ngx_error_log, "stderr") == 0) {
+                    ngx_error_log = (u_char *) "";
+                }
+
+                goto next;
+
             case 'c':
                 if (*p) {
                     ngx_conf_file = p;
@@ -1008,6 +1033,14 @@
         }
     }
 
+    if (ngx_error_log) {
+        cycle->error_log.len = ngx_strlen(ngx_error_log);
+        cycle->error_log.data = ngx_error_log;
+
+    } else {
+        ngx_str_set(&cycle->error_log, NGX_ERROR_LOG_PATH);
+    }
+
     if (ngx_conf_params) {
         cycle->conf_param.len = ngx_strlen(ngx_conf_params);
         cycle->conf_param.data = ngx_conf_params;
diff --git a/src/core/nginx.h b/src/core/nginx.h
index d84fe5b..04710fd 100644
--- a/src/core/nginx.h
+++ b/src/core/nginx.h
@@ -13,8 +13,8 @@
 #define NGINX_NAME         "nginx"
 #endif
 
-#define nginx_version      1019004
-#define NGINX_VERSION      "1.19.4"
+#define nginx_version      1019005
+#define NGINX_VERSION      "1.19.5"
 #define NGINX_VER          NGINX_NAME "/" NGINX_VERSION
 
 #ifdef NGX_BUILD
diff --git a/src/core/ngx_cycle.c b/src/core/ngx_cycle.c
index d7479fa..6978c3e 100644
--- a/src/core/ngx_cycle.c
+++ b/src/core/ngx_cycle.c
@@ -96,6 +96,15 @@
         return NULL;
     }
 
+    cycle->error_log.len = old_cycle->error_log.len;
+    cycle->error_log.data = ngx_pnalloc(pool, old_cycle->error_log.len + 1);
+    if (cycle->error_log.data == NULL) {
+        ngx_destroy_pool(pool);
+        return NULL;
+    }
+    ngx_cpystrn(cycle->error_log.data, old_cycle->error_log.data,
+                old_cycle->error_log.len + 1);
+
     cycle->conf_file.len = old_cycle->conf_file.len;
     cycle->conf_file.data = ngx_pnalloc(pool, old_cycle->conf_file.len + 1);
     if (cycle->conf_file.data == NULL) {
diff --git a/src/core/ngx_cycle.h b/src/core/ngx_cycle.h
index f24ec43..b40491d 100644
--- a/src/core/ngx_cycle.h
+++ b/src/core/ngx_cycle.h
@@ -80,6 +80,7 @@
     ngx_str_t                 conf_param;
     ngx_str_t                 conf_prefix;
     ngx_str_t                 prefix;
+    ngx_str_t                 error_log;
     ngx_str_t                 lock_file;
     ngx_str_t                 hostname;
 };
diff --git a/src/core/ngx_log.c b/src/core/ngx_log.c
index 8e9408d..0c09426 100644
--- a/src/core/ngx_log.c
+++ b/src/core/ngx_log.c
@@ -315,7 +315,7 @@
 
 
 ngx_log_t *
-ngx_log_init(u_char *prefix)
+ngx_log_init(u_char *prefix, u_char *error_log)
 {
     u_char  *p, *name;
     size_t   nlen, plen;
@@ -323,13 +323,11 @@
     ngx_log.file = &ngx_log_file;
     ngx_log.log_level = NGX_LOG_NOTICE;
 
-    name = (u_char *) NGX_ERROR_LOG_PATH;
+    if (error_log == NULL) {
+        error_log = (u_char *) NGX_ERROR_LOG_PATH;
+    }
 
-    /*
-     * we use ngx_strlen() here since BCC warns about
-     * condition is always false and unreachable code
-     */
-
+    name = error_log;
     nlen = ngx_strlen(name);
 
     if (nlen == 0) {
@@ -369,7 +367,7 @@
                 *p++ = '/';
             }
 
-            ngx_cpystrn(p, (u_char *) NGX_ERROR_LOG_PATH, nlen + 1);
+            ngx_cpystrn(p, error_log, nlen + 1);
 
             p = name;
         }
@@ -403,8 +401,7 @@
 ngx_int_t
 ngx_log_open_default(ngx_cycle_t *cycle)
 {
-    ngx_log_t         *log;
-    static ngx_str_t   error_log = ngx_string(NGX_ERROR_LOG_PATH);
+    ngx_log_t  *log;
 
     if (ngx_log_get_file_log(&cycle->new_log) != NULL) {
         return NGX_OK;
@@ -425,7 +422,7 @@
 
     log->log_level = NGX_LOG_ERR;
 
-    log->file = ngx_conf_open_file(cycle, &error_log);
+    log->file = ngx_conf_open_file(cycle, &cycle->error_log);
     if (log->file == NULL) {
         return NGX_ERROR;
     }
diff --git a/src/core/ngx_log.h b/src/core/ngx_log.h
index afb73bf..ab64a5a 100644
--- a/src/core/ngx_log.h
+++ b/src/core/ngx_log.h
@@ -228,7 +228,7 @@
 
 /*********************************/
 
-ngx_log_t *ngx_log_init(u_char *prefix);
+ngx_log_t *ngx_log_init(u_char *prefix, u_char *error_log);
 void ngx_cdecl ngx_log_abort(ngx_err_t err, const char *fmt, ...);
 void ngx_cdecl ngx_log_stderr(ngx_err_t err, const char *fmt, ...);
 u_char *ngx_log_errno(u_char *buf, u_char *last, ngx_err_t err);
diff --git a/src/core/ngx_string.c b/src/core/ngx_string.c
index 468e960..93f32ea 100644
--- a/src/core/ngx_string.c
+++ b/src/core/ngx_string.c
@@ -11,6 +11,8 @@
 
 static u_char *ngx_sprintf_num(u_char *buf, u_char *last, uint64_t ui64,
     u_char zero, ngx_uint_t hexadecimal, ngx_uint_t width);
+static u_char *ngx_sprintf_str(u_char *buf, u_char *last, u_char *src,
+    size_t len, ngx_uint_t hexadecimal);
 static void ngx_encode_base64_internal(ngx_str_t *dst, ngx_str_t *src,
     const u_char *basis, ngx_uint_t padding);
 static ngx_int_t ngx_decode_base64_internal(ngx_str_t *dst, ngx_str_t *src,
@@ -101,10 +103,10 @@
  *    %M                        ngx_msec_t
  *    %r                        rlim_t
  *    %p                        void *
- *    %V                        ngx_str_t *
- *    %v                        ngx_variable_value_t *
- *    %s                        null-terminated string
- *    %*s                       length and string
+ *    %[x|X]V                   ngx_str_t *
+ *    %[x|X]v                   ngx_variable_value_t *
+ *    %[x|X]s                   null-terminated string
+ *    %*[x|X]s                  length and string
  *    %Z                        '\0'
  *    %N                        '\n'
  *    %c                        char
@@ -165,7 +167,7 @@
     u_char                *p, zero;
     int                    d;
     double                 f;
-    size_t                 len, slen;
+    size_t                 slen;
     int64_t                i64;
     uint64_t               ui64, frac;
     ngx_msec_t             ms;
@@ -250,8 +252,7 @@
             case 'V':
                 v = va_arg(args, ngx_str_t *);
 
-                len = ngx_min(((size_t) (last - buf)), v->len);
-                buf = ngx_cpymem(buf, v->data, len);
+                buf = ngx_sprintf_str(buf, last, v->data, v->len, hex);
                 fmt++;
 
                 continue;
@@ -259,8 +260,7 @@
             case 'v':
                 vv = va_arg(args, ngx_variable_value_t *);
 
-                len = ngx_min(((size_t) (last - buf)), vv->len);
-                buf = ngx_cpymem(buf, vv->data, len);
+                buf = ngx_sprintf_str(buf, last, vv->data, vv->len, hex);
                 fmt++;
 
                 continue;
@@ -268,16 +268,7 @@
             case 's':
                 p = va_arg(args, u_char *);
 
-                if (slen == (size_t) -1) {
-                    while (*p && buf < last) {
-                        *buf++ = *p++;
-                    }
-
-                } else {
-                    len = ngx_min(((size_t) (last - buf)), slen);
-                    buf = ngx_cpymem(buf, p, len);
-                }
-
+                buf = ngx_sprintf_str(buf, last, p, slen, hex);
                 fmt++;
 
                 continue;
@@ -576,6 +567,64 @@
 }
 
 
+static u_char *
+ngx_sprintf_str(u_char *buf, u_char *last, u_char *src, size_t len,
+    ngx_uint_t hexadecimal)
+{
+    static u_char   hex[] = "0123456789abcdef";
+    static u_char   HEX[] = "0123456789ABCDEF";
+
+    if (hexadecimal == 0) {
+
+        if (len == (size_t) -1) {
+            while (*src && buf < last) {
+                *buf++ = *src++;
+            }
+
+        } else {
+            len = ngx_min((size_t) (last - buf), len);
+            buf = ngx_cpymem(buf, src, len);
+        }
+
+    } else if (hexadecimal == 1) {
+
+        if (len == (size_t) -1) {
+
+            while (*src && buf < last - 1) {
+                *buf++ = hex[*src >> 4];
+                *buf++ = hex[*src++ & 0xf];
+            }
+
+        } else {
+
+            while (len-- && buf < last - 1) {
+                *buf++ = hex[*src >> 4];
+                *buf++ = hex[*src++ & 0xf];
+            }
+        }
+
+    } else { /* hexadecimal == 2 */
+
+        if (len == (size_t) -1) {
+
+            while (*src && buf < last - 1) {
+                *buf++ = HEX[*src >> 4];
+                *buf++ = HEX[*src++ & 0xf];
+            }
+
+        } else {
+
+            while (len-- && buf < last - 1) {
+                *buf++ = HEX[*src >> 4];
+                *buf++ = HEX[*src++ & 0xf];
+            }
+        }
+    }
+
+    return buf;
+}
+
+
 /*
  * We use ngx_strcasecmp()/ngx_strncasecmp() for 7-bit ASCII strings only,
  * and implement our own ngx_strcasecmp()/ngx_strncasecmp()
diff --git a/src/event/ngx_event_openssl.c b/src/event/ngx_event_openssl.c
index d32aba0..2e739c8 100644
--- a/src/event/ngx_event_openssl.c
+++ b/src/event/ngx_event_openssl.c
@@ -4083,9 +4083,6 @@
     ngx_ssl_session_ticket_key_t  *key;
     const EVP_MD                  *digest;
     const EVP_CIPHER              *cipher;
-#if (NGX_DEBUG)
-    u_char                         buf[32];
-#endif
 
     c = ngx_ssl_get_connection(ssl_conn);
     ssl_ctx = c->ssl->session_ctx;
@@ -4107,8 +4104,8 @@
         /* encrypt session ticket */
 
         ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
-                       "ssl session ticket encrypt, key: \"%*s\" (%s session)",
-                       ngx_hex_dump(buf, key[0].name, 16) - buf, buf,
+                       "ssl session ticket encrypt, key: \"%*xs\" (%s session)",
+                       (size_t) 16, key[0].name,
                        SSL_session_reused(ssl_conn) ? "reused" : "new");
 
         if (key[0].size == 48) {
@@ -4154,17 +4151,16 @@
         }
 
         ngx_log_debug2(NGX_LOG_DEBUG_EVENT, c->log, 0,
-                       "ssl session ticket decrypt, key: \"%*s\" not found",
-                       ngx_hex_dump(buf, name, 16) - buf, buf);
+                       "ssl session ticket decrypt, key: \"%*xs\" not found",
+                       (size_t) 16, name);
 
         return 0;
 
     found:
 
         ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
-                       "ssl session ticket decrypt, key: \"%*s\"%s",
-                       ngx_hex_dump(buf, key[i].name, 16) - buf, buf,
-                       (i == 0) ? " (default)" : "");
+                       "ssl session ticket decrypt, key: \"%*xs\"%s",
+                       (size_t) 16, key[i].name, (i == 0) ? " (default)" : "");
 
         if (key[i].size == 48) {
             cipher = EVP_aes_128_cbc();
diff --git a/src/event/ngx_event_openssl_stapling.c b/src/event/ngx_event_openssl_stapling.c
index 9d92421..e3fa8c4 100644
--- a/src/event/ngx_event_openssl_stapling.c
+++ b/src/event/ngx_event_openssl_stapling.c
@@ -2662,16 +2662,8 @@
     p = ngx_cpymem(p, serial->data, serial->length);
     ngx_memzero(p, 20 - serial->length);
 
-#if (NGX_DEBUG)
-    {
-        u_char  buf[120];
-
-        ngx_hex_dump(buf, ctx->key.data, ctx->key.len);
-
-        ngx_log_debug2(NGX_LOG_DEBUG_EVENT, ctx->log, 0,
-                       "ssl ocsp key %*s", sizeof(buf), buf);
-    }
-#endif
+    ngx_log_debug1(NGX_LOG_DEBUG_EVENT, ctx->log, 0,
+                   "ssl ocsp key %xV", &ctx->key);
 
     return NGX_OK;
 }
diff --git a/src/http/modules/ngx_http_grpc_module.c b/src/http/modules/ngx_http_grpc_module.c
index 7e14af8..aa75765 100644
--- a/src/http/modules/ngx_http_grpc_module.c
+++ b/src/http/modules/ngx_http_grpc_module.c
@@ -1141,20 +1141,11 @@
 
     f->flags |= NGX_HTTP_V2_END_HEADERS_FLAG;
 
-#if (NGX_DEBUG)
-    if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) {
-        u_char  buf[512];
-        size_t  n, m;
-
-        n = ngx_min(b->last - b->pos, 256);
-        m = ngx_hex_dump(buf, b->pos, n) - buf;
-
-        ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
-                       "grpc header: %*s%s, len: %uz",
-                       m, buf, b->last - b->pos > 256 ? "..." : "",
-                       b->last - b->pos);
-    }
-#endif
+    ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+                   "grpc header: %*xs%s, len: %uz",
+                   (size_t) ngx_min(b->last - b->pos, 256), b->pos,
+                   b->last - b->pos > 256 ? "..." : "",
+                   b->last - b->pos);
 
     if (r->request_body_no_buffering) {
 
@@ -1604,20 +1595,11 @@
     u = r->upstream;
     b = &u->buffer;
 
-#if (NGX_DEBUG)
-    if (r->connection->log->log_level & NGX_LOG_DEBUG_HTTP) {
-        u_char  buf[512];
-        size_t  n, m;
-
-        n = ngx_min(b->last - b->pos, 256);
-        m = ngx_hex_dump(buf, b->pos, n) - buf;
-
-        ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
-                       "grpc response: %*s%s, len: %uz",
-                       m, buf, b->last - b->pos > 256 ? "..." : "",
-                       b->last - b->pos);
-    }
-#endif
+    ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
+                   "grpc response: %*xs%s, len: %uz",
+                   (size_t) ngx_min(b->last - b->pos, 256),
+                   b->pos, b->last - b->pos > 256 ? "..." : "",
+                   b->last - b->pos);
 
     ctx = ngx_http_grpc_get_ctx(r);
 
@@ -1987,6 +1969,7 @@
         }
 
         u->length = 0;
+        ctx->done = 1;
 
     } else {
         u->length = 1;
diff --git a/src/http/ngx_http_request.c b/src/http/ngx_http_request.c
index 35ef12d..cc822c4 100644
--- a/src/http/ngx_http_request.c
+++ b/src/http/ngx_http_request.c
@@ -49,7 +49,7 @@
 
 static void ngx_http_set_keepalive(ngx_http_request_t *r);
 static void ngx_http_keepalive_handler(ngx_event_t *ev);
-static void ngx_http_set_lingering_close(ngx_http_request_t *r);
+static void ngx_http_set_lingering_close(ngx_connection_t *c);
 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
@@ -2934,7 +2934,7 @@
                 || r->header_in->pos < r->header_in->last
                 || r->connection->read->ready)))
     {
-        ngx_http_set_lingering_close(r);
+        ngx_http_set_lingering_close(r->connection);
         return;
     }
 
@@ -3219,13 +3219,6 @@
 
     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
 
-    if (r->discard_body) {
-        r->write_event_handler = ngx_http_request_empty_handler;
-        r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
-        ngx_add_timer(rev, clcf->lingering_timeout);
-        return;
-    }
-
     c->log->action = "closing request";
 
     hc = r->http_connection;
@@ -3555,22 +3548,43 @@
 
 
 static void
-ngx_http_set_lingering_close(ngx_http_request_t *r)
+ngx_http_set_lingering_close(ngx_connection_t *c)
 {
     ngx_event_t               *rev, *wev;
-    ngx_connection_t          *c;
+    ngx_http_request_t        *r;
     ngx_http_core_loc_conf_t  *clcf;
 
-    c = r->connection;
+    r = c->data;
 
     clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
+    if (r->lingering_time == 0) {
+        r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
+    }
+
+#if (NGX_HTTP_SSL)
+    if (c->ssl) {
+        ngx_int_t  rc;
+
+        rc = ngx_ssl_shutdown(c);
+
+        if (rc == NGX_ERROR) {
+            ngx_http_close_request(r, 0);
+            return;
+        }
+
+        if (rc == NGX_AGAIN) {
+            c->ssl->handler = ngx_http_set_lingering_close;
+            return;
+        }
+
+        c->recv = ngx_recv;
+    }
+#endif
+
     rev = c->read;
     rev->handler = ngx_http_lingering_close_handler;
 
-    r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
-    ngx_add_timer(rev, clcf->lingering_timeout);
-
     if (ngx_handle_read_event(rev, 0) != NGX_OK) {
         ngx_http_close_request(r, 0);
         return;
@@ -3593,6 +3607,8 @@
         return;
     }
 
+    ngx_add_timer(rev, clcf->lingering_timeout);
+
     if (rev->ready) {
         ngx_http_lingering_close_handler(rev);
     }
diff --git a/src/http/ngx_http_request_body.c b/src/http/ngx_http_request_body.c
index 71d7e9a..0cae88f 100644
--- a/src/http/ngx_http_request_body.c
+++ b/src/http/ngx_http_request_body.c
@@ -137,8 +137,9 @@
     } else {
         /* set rb->rest */
 
-        if (ngx_http_request_body_filter(r, NULL) != NGX_OK) {
-            rc = NGX_HTTP_INTERNAL_SERVER_ERROR;
+        rc = ngx_http_request_body_filter(r, NULL);
+
+        if (rc != NGX_OK) {
             goto done;
         }
     }
@@ -305,6 +306,9 @@
                         return NGX_AGAIN;
                     }
 
+                    ngx_log_error(NGX_LOG_ALERT, c->log, 0,
+                                  "busy buffers after request body flush");
+
                     return NGX_HTTP_INTERNAL_SERVER_ERROR;
                 }
 
@@ -674,6 +678,7 @@
     if (rc == NGX_OK) {
         r->discard_body = 0;
         r->lingering_close = 0;
+        r->lingering_time = 0;
         ngx_http_finalize_request(r, NGX_DONE);
         return;
     }
diff --git a/src/http/v2/ngx_http_v2.c b/src/http/v2/ngx_http_v2.c
index 1dfd7d2..97fd5e4 100644
--- a/src/http/v2/ngx_http_v2.c
+++ b/src/http/v2/ngx_http_v2.c
@@ -61,7 +61,7 @@
 static void ngx_http_v2_read_handler(ngx_event_t *rev);
 static void ngx_http_v2_write_handler(ngx_event_t *wev);
 static void ngx_http_v2_handle_connection(ngx_http_v2_connection_t *h2c);
-static void ngx_http_v2_lingering_close(ngx_http_v2_connection_t *h2c);
+static void ngx_http_v2_lingering_close(ngx_connection_t *c);
 static void ngx_http_v2_lingering_close_handler(ngx_event_t *rev);
 
 static u_char *ngx_http_v2_state_proxy_protocol(ngx_http_v2_connection_t *h2c,
@@ -665,7 +665,7 @@
     }
 
     if (h2c->goaway) {
-        ngx_http_v2_lingering_close(h2c);
+        ngx_http_v2_lingering_close(c);
         return;
     }
 
@@ -704,13 +704,13 @@
 
 
 static void
-ngx_http_v2_lingering_close(ngx_http_v2_connection_t *h2c)
+ngx_http_v2_lingering_close(ngx_connection_t *c)
 {
     ngx_event_t               *rev, *wev;
-    ngx_connection_t          *c;
+    ngx_http_v2_connection_t  *h2c;
     ngx_http_core_loc_conf_t  *clcf;
 
-    c = h2c->connection;
+    h2c = c->data;
 
     clcf = ngx_http_get_module_loc_conf(h2c->http_connection->conf_ctx,
                                         ngx_http_core_module);
@@ -720,12 +720,34 @@
         return;
     }
 
+    if (h2c->lingering_time == 0) {
+        h2c->lingering_time = ngx_time()
+                              + (time_t) (clcf->lingering_time / 1000);
+    }
+
+#if (NGX_HTTP_SSL)
+    if (c->ssl) {
+        ngx_int_t  rc;
+
+        rc = ngx_ssl_shutdown(c);
+
+        if (rc == NGX_ERROR) {
+            ngx_http_close_connection(c);
+            return;
+        }
+
+        if (rc == NGX_AGAIN) {
+            c->ssl->handler = ngx_http_v2_lingering_close;
+            return;
+        }
+
+        c->recv = ngx_recv;
+    }
+#endif
+
     rev = c->read;
     rev->handler = ngx_http_v2_lingering_close_handler;
 
-    h2c->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
-    ngx_add_timer(rev, clcf->lingering_timeout);
-
     if (ngx_handle_read_event(rev, 0) != NGX_OK) {
         ngx_http_close_connection(c);
         return;
@@ -748,6 +770,8 @@
         return;
     }
 
+    ngx_add_timer(rev, clcf->lingering_timeout);
+
     if (rev->ready) {
         ngx_http_v2_lingering_close_handler(rev);
     }
@@ -4806,7 +4830,7 @@
         return;
     }
 
-    ngx_http_v2_lingering_close(h2c);
+    ngx_http_v2_lingering_close(c);
 }