This is needed to break infinite loop in SUNRPC state machine, leading to
unstoppable container in case of unreachable network.

https://jira.sw.ru/browse/PSBM-67544

Note: needs kernel rh7-3.10.0-514.16.1.vz7.32.12 or newer

Signed-off-by: Stanislav Kinsburskiy <skinsbur...@virtuozzo.com>
---
 lib/env_nsops.c |   16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/lib/env_nsops.c b/lib/env_nsops.c
index d62dff4..e46a1e6 100644
--- a/lib/env_nsops.c
+++ b/lib/env_nsops.c
@@ -1071,23 +1071,33 @@ static int ns_env_stop_force(struct vzctl_env_handle *h)
 {
        int ret, rc;
 
+       ret = cg_set_param(EID(h), CG_VE, "ve.sunrpc_abort", "1");
+       if (ret)
+               return ret;
+
        logger(0, 0, "Forcibly stop the Container...");
 
        ret = cg_freezer_cmd(EID(h), VZCTL_CMD_FREEZE);
        if (ret)
-               return ret;
+               goto release_sunrpc;
 
        rc = ns_env_kill(h);
 
        /* Unfreeze unconditionally */
        ret = cg_freezer_cmd(EID(h), VZCTL_CMD_RESUME);
-       if (ret || rc)
-               return ret ?: rc;
+       if (ret || rc) {
+               ret = ret ?: rc;
+               goto release_sunrpc;
+       }
 
        if (wait_env_state(h, VZCTL_ENV_STOPPED, MAX_SHTD_TM))
                return vzctl_err(-1, 0, "Failed to stop Container:"
                                " operation timed out");
        return 0;
+
+release_sunrpc:
+       (void) cg_set_param(EID(h), CG_VE, "ve.sunrpc_abort", "0");
+       return ret;
 }
 
 static int ns_env_cleanup(struct vzctl_env_handle *h, int flags)

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