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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_2fotrqjqje3p8gfpllaj9ffnsf, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
static S backtickInSuperUserVM(S cmd, bool uninterruptible default false) {
  if (isRoot()) {
    temp tempSetTL(backtick_uninterruptable, uninterruptible);
    ret backtickToConsole_returnOutput(cmd);
  }
    
  //S s = sendToSuperUserVM("please run program * with arguments *", #1009066, ll(cmd));
  S s = sendToSuperUserVM2(uninterruptible ? "backtick uninterruptible *" : "backtick *", cmd);
  assertTrue(startsWith(s, "OK "));
  ret unquote(substring(s, 3));
}